GE Data Sheet CP2500AC54TE Compact Power Line High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Features RoHS Compliant Efficiency 96.2% Compact 1RU form factor with 30 W/in3 density Constant power from 52 – 58VDC 2500W from nominal 200 – 277VAC 1200W from nominal 100 – 120VAC Output voltage programmable from 42V – 58VDC PMBus compliant dual I2C and RS485 serial busses Isolated +5V Aux, signals and I2C communications Power factor correction (meets EN/IEC 61000-3-2 and EN 60555-2 requirements) Applications Output overvoltage and overload protection 48VDC distributed power architectures AC Input overvoltage and undervoltage protection Routers/Switches Over-temperature warning and protection VoIP/Soft Switches Redundant, parallel operation with active load sharing LAN/WAN/MAN applications Remote ON/OFF File servers Internally controlled Variable-speed fan Indoor wireless Hot insertion/removal (hot plug) Telecommunications equipment Four front panel LED indicators Enterprise Networks UL* Recognized to UL60950-1, CAN/ CSA† C22.2 No. SAN/NAS/iSCSI applications 60950-1, and VDE‡ 0805-1 Licensed to IEC60950-1 CE mark meets 2006/95/EC directive§ RoHS 6 compliant Description The CP2500AC54TE Rectifier provides significant efficiency improvements in the Compact Power Line platform of Rectifiers. Highdensity front-to-back airflow is designed for minimal space utilization and is highly expandable for future growth. The wide-input standard product is designed to be deployed internationally. It is configured with both RS485 and dual-redundant I2C communications busses that allow it to be used in a broad range of applications. These signals and the 5V auxiliary supply are isolated from the main output and frame ground. Feature set flexibility makes this rectifier an excellent choice for applications requiring modular AC to - 48VDC intermediate voltages, such as in distributed power. * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. ‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V. § This product is intended for integration into end-user equipment. All CE marking procedures of end-user equipment should be followed. (The CE mark is placed on selected products.) ** ISO is a registered trademark of the International Organization of Standards + The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF) August 16, 2013 ©2013 General Electric Company. All rights reserved. GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Input Voltage: Continuous Operating Ambient Temperature Storage Temperature I/O Isolation voltage to Frame (100% factory Hi-Pot tested) Symbol Min Max Unit VIN TA Tstg 0 -10 -40 300 751 85 1500 VAC °C °C VAC Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, Vo=54VDC, resistive load, and temperature conditions. INPUT Parameter Symbol Startup Input Voltage Low-line Operation High-line Operation Operating Voltage Range Low-line Configuration High-line Configuration Input Voltage Swell (no damage) Input Frequency Min Typ VIN VIN FIN 90 185 305 47 100 – 120 200 - 277 Input Leakage Current (265VAC, 60Hz) Power Factor (50 – 100% load) IIN PF 0.96 11.9 13.1 25 8.2 16 2.5 0.995 Efficiency2 94.5 96.2 T PFW 1/2 3 20 30 1 5 V 1500 3000 Input Current; at 110VAC at 240VAC IIN Inrush Transient (at 25°C, excluding X-Capacitor charging) IIN Idle Power (at 220VAC) 54V ON @ Io=0 PIN 54V OFF (30 – 80% of FL, 240VAC @ 25C) Holdup time (output allowed to decay down to 40VDC) For loads below 1200W Ride thru (tested at 115V @ 230V. (Complies to CISPR24) Power Fail Warning3 (main output allowed to decay to 40VDC) Isolation (per EN60950) (consult factory for testing to this requirement) Input-Chassis/Signals Input - Output T 1 Derated above 50C at 2.5%/C 2 See efficiency curve in the Characteristics Curves section. 3 Internal protection circuits may override the PFW signal and may trigger an immediate shutdown. August 16, 2013 ©2013 General Electric Company. All rights reserved. Max Unit 90 185 VAC 140 300 VAC 66 Hz AAC 30 APK W 3.5 mA % ms cycle ms VAC VAC Page 2 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Electrical Specifications (continued) 54VDC MAIN OUTPUT Parameter Output Power @ low line input 100 – 120VAC @ high line input 200 – 277VAC @ nominal 277Vac and Tamb > 45C Symbol Min W 1200 2500 2000 Default Set point Typ VOUT Output Voltage Set Range - analog margining - Set either by I2C or RS485 Output Current - @ 1200W (100 – 120Vac), 54V/52V @ 2500W (200 – 240VAC), 54V/52V @ 2000W ( > 277VAC @ Tamb > 45C), 54V/52V Current Share ( > 50% FL) Proportional Current Share between different rectifiers ( > 50% FL) Output Ripple ( 20MHz bandwidth, load > 1A) RMS (5Hz to 20MHz) Peak-to-Peak (5Hz to 20MHz) Psophometric Noise External Bulk Load Capacitance IOut Overvoltage - 200ms delayed shutdown Immediate shutdown Latched shutdown -1 -2 44 42 1 1 1 -5 VDC +1 +2 58 58 25/23 50.5/52.4 37/38.4 5 <7 VOUT COUT Turn-On (monotonic turn-ON from 30 – 100% of Vnom above 5C) Delay Rise Time – PMBus mode Rise Time - RS-485 mode6 Output Overshoot Load Step Response ( IO,START > 2.5A ) I V, VAC 285AC V, VAC ≥ 285AC Response Time Overload - Power limit @ high line down to 52VDC Power limit @ low line down to 52VDC High line current limit if Vout > 41.5VDC High line current limit if Vout < 41.5VDC Low line current limit Output shutdown (commences as voltage decays below this level) System power up 0 VOUT IOUT VOUT VOUT T POUT POUT IOUT VDC ADC %FL %FL mVrms mVp-p mVrms 5,000 F 2 s ms s % 50 2.0 3.2 2 2500 1200 51 36 26 VOUT % 100 2504 95 5 100 5 T Unit WDC 54 Overall regulation (load, temperature, aging) 0 - 45C LOAD > 2.5A > 45C 39 %FL VDC VDC ms WDC WDC ADC ADC ADC VDC Upon insertion the power supply will delay an overload shutdown for 20 seconds allowing for the insertion and startup of multiple modules within a system. < 65 VOUT VDC > 65 Three restart attempts are implemented within a 1 minute window prior to a latched shutdown. Over-temperature warning (prior to commencement of shutdown) Shutdown (below the max device rating being protected) Restart attempt Hysteresis (below shutdown level) T Isolation Output-Chassis (Standard, non-POE compliant) V 5 20 10 500 4 500mVp-p max above 280VAC , 300mVp-p max for POE product 5 Complies with ANSI TI.523-2001 section 4.9.2 emissions max limit of 20mV flat unweighted wideband noise limits 6 Below -5°C, the rise time is approximately 5 minutes to protect the bulk capacitors. August 16, 2013 Max ©2013 General Electric Company. All rights reserved. C VDC Page 3 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W 5VDC Auxiliary output Parameter Symbol Output Voltage Setpoint Overall Regulation Output Current Ripple and Noise (20mHz bandwidth) Over-voltage Clamp Over-current Limit Isolation from the main output STD / POE compliant Isolation from frame ground Min Typ VOUT Max 5 -107 0.005 50 110 500 / 2250 50 +5 0.75 100 7 175 Unit VDC % A mVp-p VDC %FL Vdc Vdc General Specifications Parameter Min Reliability Typ Max 450,000 Service Life Unpacked Weight Packed Weight Heat Dissipation Units Notes Hours Full load, 25C ; MTBF per SR232 Reliability protection for electronic equipment, issue 2, method I, case III, Full load, excluding fans 10 Years 2.18/4.8 Kgs/Lbs 2.45/5.4 Kgs/Lbs 100 Watts or 341 BTUs @ 80% load, 153 Watts or 522 BTUs @ 100% load Feature Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Signals are referenced to Logic_GRD unless noted otherwise. Fault, PFW, OTW, SMBAlert#, and Power capacity need to be pulled HI through external pull-up resistors. See Feature Descriptions for additional information. Parameter Enable (should be connected to Logic_GRD) 54V output OFF 54V output ON Margining (through adjusting Vcontrol) Voltage control range Programmed output voltage range Voltage adjustment resolution (8-bit A/D) Output configured to 54VDC Output configured to 44VDC ON/OFF [short pin controls 54VDC output - ] referenced to VOUT( - ) 54V output OFF 54V output ON 7 Symbol Min Typ Max Unit VOUT VOUT 1.4 0 5 0.8 VDC VDC 58 3.3 58 3. 3 0.1 VDC VDC VDC mVDC VDC VDC 500 5 0.8 VDC VDC 5 0.8 Ω VDC VDC 12 5 0.4 VDC mA VDC 12 5 0.4 VDC mA VDC 12 5 0.4 VDC mA VDC 44 0 42 Vcontrol VOUT Vcontrol Vcontrol Vcontrol 3.0 0 Vcontrol Vcontrol 1.4 0 Module Present [Resistor connected to Logic_GRD internally] Write protect enabled Write protect disabled V V 1 0 Over Temperature Warning (OTW) Logic HI (temperature normal) Sink current Logic LO (temperature is too high) V I V 0.7VDD Fault Logic HI (No fault is present) Sink current Logic LO (Fault is present) V I V 0.7VDD SMBAlert# (Alert#_0, Alert#_1) Logic HI (No Alert - normal) Sink current Logic LO (Alert is set) V I V 0.7VDD 3.3 0 0 0 Within ±5% when load is < 0.5A August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 4 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Feature Specifications (continued) Symbol Min Typ Max Unit Power Capacity Logic HI Logic LO Parameter V V 0.7VDD 0 12 0.4 VDC VDC Reset Logic HI V 0.7VDD 12 VDC Logic LO Protocol select Logic HI - Analog/PMBus™ mode Logic – intermediate – RS485 mode Logic LO – DSP reprogram mode V 0 0.4 VDC VIH 2.7 3.5 VDC VII VIL 1.0 0 2.65 0.4 VDC VDC Symbol Min Typ V V I V I 1.5 0 0 VOUT=3.6V I Slave Mode Digital Interface Specifications Parameter Conditions Max Unit 3.6 0.8 10 0.4 VDC VDC μA VDC mA 0 10 μA FPMB 10 400 kHz Tstretch Irng Iout(acc) Vout(rng) Vout(acc) 0 -2.5 0 -1 25 508 +2.5 70 +1 ms ADC % of FL VDC % PMBus Signal Interface Characteristics Input Logic High Voltage (CLK, DATA) Input Logic Low Voltage (CLK, DATA) Input high sourced current (CLK, DATA) Output Low sink Voltage (CLK, DATA, SMBALERT#) Output Low sink current (CLK, DATA, SMBALERT#) Output High open drain leakage current (CLK,DATA, SMBALERT#) PMBus Operating frequency range Measurement System Characteristics Clock stretching IOUT measurement range IOUT measurement accuracy 25°C VOUT measurement range VOUT measurement accuracy9 IOUT=3.5mA Direct Direct Direct Temp measurement range Temp measurement accuracy10 VIN measurement range VIN measurement accuracy PIN measurement range PIN measurement accuracy11 Fan Speed measurement range Fan Speed measurement accuracy Fan speed control range Device Addressing Direct Direct 0 150 -5 0 -1.5 0 -3.5 0 -10 0 +5 320 +1.5 3000 +3.5 30k 10 100 C % VAC % Win % RPM % % Vunitadr Vunitadr Vunitadr Vunitadr Vshelfadr Vshelfadr Vshelfadr Vshelfadr Vshelfadr Vshelfadr Vshelfadr Vshelfadr 2.3 1.6 0.9 0 3.0 2.7 2.18 1.73 1.29 0.84 0.30 0 3.3 2.2 1.5 0.8 3.45 2.97 2.56 2.14 1.70 1.25 0.80 0.25 VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC Direct Unit address [reference: VOUT ( - )] Shelf address [reference: VOUT ( - )] 8 Load levels higher than 50A will be read as 50A. 9 Above 2.5A of load current 10 Temperature accuracy reduces non-linearly with decreasing temperature 11 Below 100W input power measurement accuracy reduces significantly August 16, 2013 Temp(rng) Temp(acc) Vin(rng) Vin(acc) Pin(rng) Pin(acc) Direct Module 1 Module 2 Module 3 Module 4 Shelf 1 Shelf 2 Shelf 3 Shelf 4 Shelf 5 Shelf 6 Shelf 7 Shelf 8 3.5 ©2013 General Electric Company. All rights reserved. 2.477 1.925 1.243 0.654 3.3 2.86 2.4 1.96 1.50 1.10 0.60 0.01 Page 5 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Environmental Specifications Parameter Min Ambient Temperature -4012 Storage Temperature -40 Typ Operating Altitude Non-operating Altitude Max Units 5513 °C 85 °C 1524/5000 m / ft 8200/30k m / ft Power Derating with Temperature 2.0 %/°C Power Derating with Altitude 2.0 C/305 m C/1000 ft Acoustic noise Over Temperature Protection Humidity Operating Storage 55 dbA 125/110 °C 5 5 Shock and Vibration acceleration Earthquake Rating Notes Air inlet from sea level to 5,000 feet. 55°C to 75C14 Above 1524/5000 m/ft; 3962/13000 m/ft max Full load Shutdown / restart [internally measured points] 95 95 % % 6 Grms NEBS GR-63-CORE, Level 3, 20 -2000Hz, min 30 minutes Zone NEBS GR-63-CORE, all floors, Seismic Zone 4 Designed and tested to meet NEBS specifications. 4 Relative humidity, non-condensing EMC Parameter Criteria Test EN55022, FCC Docket 20780 part 15, subpart J EN61000-3-2 Meets Telcordia GR1089-CORE by a 3dB margin A 0.15 – 30MHz 0 – 2 KHz Radiated emissions EN55022 A 30 – 10000MHz Line sags and interruptions EN61000-4-11 AC Input Immunity Lightning surge Fast transients 12 Level Conducted emissions AC input Enclosure immunity Standard B -30%, 10ms B -60%, 100ms B -100%, 5sec Output will stay above 40VDC @ full load 25% line sag for 2 seconds Sag must be higher than 80Vrms. 1 cycle interruption EN61000-4-5, Level 4, 1.2/50µs – error free A 4kV, common mode A 2kV, differential mode ANSI C62.41 - damage free A3 6kV, common & differential EN61000-4-4, Level 3 B 5/50ns, 2kV (common mode) Conducted RF fields EN61000-4-6, Level 3 A 130dBµV, 0.15-80MHz, 80% AM Radiated RF fields EN61000-4-3, Level 3 A 10V/m, 80-1000MHz, 80% AM ENV 50140 A ESD EN61000-4-2, Level 3 B 6kV contact, 8kV air Designed to start and work at an ambient as low as -40°C, but may not meet operational limits until above -5°C 13 Output power is derated to 2kW for temperatures higher than 45C and input voltages higher than 285VAC. 14 The maximum operational ambient is reduced in Europe in order to meet certain power cord maximum ratings of 70C. The maximum operational ambient where 70C rated power cords are utilized is reduced to 60C until testing demonstrates that a higher level is acceptable. August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 6 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Characteristic Curves The following figures provide typical characteristics for the CP2500AC54TE rectifier and 25oC. 98 60 96 55 94 50 Vin=240V Vin=110V 90 OUTPUT VOLTAGE EFFICIENCY, (%) 92 88 86 84 45 40 35 82 80 30 0 5 10 15 20 25 30 35 40 45 50 40 55 45 OUTPUT CURRENT, IO (A) 50 55 OUTPUT CURRENT Figure 1. Rectifier Efficiency versus Output Current. Figure 2. 54VDC output: Power limit, Current limit and shutdown profile at VIN = 185VAC. 60 2600 55 2400 OUTPUT POWER OUTPUT VOLTAGE POUT = 55.015Vin - 6991.6 Equation for derating zone tolerance: ±5% 2200 50 45 40 35 2000 1800 1600 1400 1200 30 1000 15 20 25 30 120 140 OUTPUT CURRENT August 16, 2013 200 INPUT VOLTAGE VO (V) (20mV/div) TIME, t (10ms /div) Figure 5. 54VDC output ripple and noise, full load, VIN = 185VAC. 180 Figure 4. 54VDC output: Output power derating based on input voltage. OUTPUT VOLTAGE VO (V) (200mV/div) OUTPUT VOLTAGE Figure 3. 54VDC output: Power limit, Current limit and shutdown profile at VIN = 90VAC. 160 TIME, t (10ms/div) Figure 6. 5VDC output ripple and noise, all full load, VIN = 185VAC. ©2013 General Electric Company. All rights reserved. Page 7 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Characteristic Curves (continued) OUUTPUT VOLTAGE VO(V) (1V/div) IO (V) (20A/div) VO (V) (1V/div) IO (V) (20A/div) OUTPUT CIURRENT OUUTPUT VOLTAGE OUTPUT CIURRENT The following figures provide typical characteristics for the CP2500AC54TE rectifier and 25oC. TIME, t (20ms/div) VO (V) (10V/div) Figure 8. Transient response 54VDC load step 27.2 – 2.5A, VIN = 185VAC. OUTPUT VOLTAGE VO (V) (200mV/div) OUTPUT VOLTAGE Figure 7. Transient response 54VDC load step 2.5 – 27.2A, VIN = 185VAC. OUTPUT CURRENT, IO (A) TIME, t (50ms/div) VO(V) (10V/div) VPFW (V) (5V/div) OUUTPUT VOLTAGE VO(V) (10V/div) VIN (V) (100V/div) TIME, t (2s/div) Figure 10. 54VDC soft start, full load, VIN = 185VAC RS485 mode. PFW SIGNAL OUUTPUT VOLTAGE INPUT VOLTAGE Figure 9. 54VDC soft start, no-load & full load, VIN=185VAC I2C mode. TIME, t (10ms/div) Figure 11. Ride through missing 1 cycle, full load, VIN = 230VAC. August 16, 2013 TIME, t (10ms/div) Figure 12. PFW alarmed 19.6ms prior to Vo < 40V, output load: 38A, VIN = 185VAC. ©2013 General Electric Company. All rights reserved. Page 8 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W -54 Signal Reference Unless otherwise noted, all signals are referenced to Logic_GRD. See the Signal Definitions Table at the end of this document for further description of all the signals. Logic_GRD is isolated from the main output of the power supply for PMBus communications. Communications and the 5V standby output are not connected to main power return (Vout(-)) and can be tied to the system digital ground point selected by the user. (Note that RS485 communications is referenced to Vout(-), main power return of the power supply). Logic_GRD is capacitively coupled to Frame_GRD inside the power supply. The maximum voltage differential between Logic_GRD and Frame_GRD should be less than 100VDC. Control Signals Enable: Controls the main 54VDC output when either analog control or PMBus protocols are selected, as configured by the Protocol pin. This pin must be pulled low to turn ON the rectifier. The rectifier will turn OFF if either the Enable or the ON/OFF pin is released. This signal is referenced to Logic_GRD. In RS485 mode this pin is ignored. ON/OFF: This is a shorter pin utilized for hot-plug applications to ensure that the rectifier turns OFF before the power pins are disengaged. It also ensures that the rectifier turns ON only after the power pins have been engaged. Must be connected to V_OUT ( - ) for the rectifier to be ON. Margining: The 54VDC output can be adjusted between 44 – 58VDC by a control voltage on the Margin pin. This control voltage can be generated either from an external voltage source, or by forming a voltage divider between 3.3V and Logic_GRD, as shown in Fig. 13. The power supply includes the high side pull-up 10kΩ resistor to 3.3VDC. Connecting a resistor between the margin pin and Logic_GRD will complete the divider. An open circuit, or a voltage level > 3.0VDC, on this pin sets the main output to the factory default setting of 54VDC. Hardware margining is only effective until software commanded output voltage changes are not executed. Software commanded output voltage settings permanently override the hardware margin setting until power to the internal controller is interrupted, for example if input power or bias power is recycled. The controller always restarts into its default configuration, programmed to set the output as instructed by the margin pin. Subsequent software commanded settings permanently override the margin pin. Adding a resistor between margin and Vout(-) is an ideal way of changing the factory set point of the rectifier to whatever voltage level is desired by the user. August 16, 2013 -46 -44 Vcontrol Inside module Details of analog control and the PMBus™ based protocol are provided in this data sheet. GE will provide separate application notes on the Galaxy RS485 based protocol for users to interface to the rectifier. Contact your local GE representative for details. 3.3Vdc 10k The Rectifier provides three means for monitor/control: analog, PMBus™, or the GE Galaxy-based RS485 protocol. 0 0.1 Rprogram -58 Output Setpoint (Vdc) Control and Status 3.3 3.0 Vcontrol (Vdc) Figure 13. Diagram showing how output can be margined using Vcontrol adjustment. Module Present Signal: This signal has dual functionality. It can be used to alert the system when a rectifier is inserted. A 500Ω resistor is present in series between this signal and Logic_GRD. An external pull-up should not raise the voltage on the pin above 0.25VDC. When the voltage on this pin exceeds 1VDC, the write_protect feature of the EEPROM is enabled. 8V_INT: Single wire connection between modules, Provides bias to the DSP of an unpowered module. Reset: This is a PCA9541 multiplexer function utilized during PMBus communications. If momentarily grounded (Logic_GRD), the multiplexer would reset itself. Protocol: Establishes the communications mode of the rectifier, between analog/PMBus and RS485 modes. For RS485, connect a 10kΩ pull-down resistor from this pin to V_OUT( - ). For analog/PMBus leave the pin open. Do not tie this signal pin to V_OUT( - ) because that connection configures the internal DSP into a reprogrammed state. Unit Address: Each module has an internal 10kΩ resistor pulled up between unit_address and 3.3VDC. A resistor between unit_address and Vout(-) sets the appropriate unit address. Shelf Address: By applying the required voltage between the shelf address pin and Vout(-), up to 8 different shelves and so up to 32 different modules can be addressed using either the PMBus or GE Galaxy based RS485 protocol. PMBus addressing is limited to a maximum of 8 modules and so the software decodes the shelf address setting into either shelf 0 or shelf 1 in PMBus applications. If more than two shelves are paralleled, the user must separate the I2C lines so that address conflicts do not occur. Shelf_address Maximum voltage Nominal voltage Minimum voltage Address bit- A2 1 3.45 3.30 3.00 0 2 2.97 2.86 2.60 1 3 2.56 2.4 2.18 0 4 2.14 1.96 1.73 1 Shelf_address Maximum voltage Nominal voltage Minimum voltage Address bit- A2 5 1.70 1.50 1.29 0 6 1.25 1.10 0.84 1 7 0.80 0.60 0.30 0 8 0.25 0.01 0 1 ©2013 General Electric Company. All rights reserved. Page 9 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Status Signals Power Capacity: A HI on this pin indicates that the rectifier delivers high line rated output power; a LO indicates that the rectifier is connected to low line configured for 1200W operation. Power Fail Warning: This signal is HI when the main output is being delivered and goes LO for the duration listed in this data sheet prior to the output decaying below the listed voltage level. Fault: This signal goes LO for any failure that requires rectifier replacement. These faults may be due to: Using the PCA9541 multiplexer: Transition between the two I2C lines is provided by the industry standard PCA9541 I2C master selector multiplexer. Option 01 of the device code is supplied which, upon start-up, connects channel 0 to the power supply. In this fashion applications using only a single I2C line can immediately start talking across the bus without first requiring to reconfigure the multiplexer. Fan failure Over-temperature warning Over-temperature shutdown Over-voltage shutdown Internal Rectifier Fault Figure 14. Diagram showing conceptual representation of the dual I2C bus system. Digital Feature Descriptions PMBus™ compliance: The power supply is fully compliant to the Power Management Bus (PMBus™) rev1.2 requirements with the following exceptions: The power supply continuously updates its STATUS and ALARM registers to the latest state in order to capture the ‘present’ state of the power supply. There are a number of indicators, such as those indicating a communications fault (PEC error, data error) that do not get cleared until specifically instructed by the host controller sending a clear_faults command. A ‘bit’ indicator notifies the user if the STATUS and ALARM registers changed since the last ‘read’ by the host controller. For example, if a voltage surge causes a momentary shutdown for over voltage the power supply will automatically restart if the ‘auto_restart’ feature is invoked. During the momentary shutdown the power supply issues an Alert# indicating to the system controller that a status change has occurred. If the system controller reads back the STATUS and ALARM registers while the power supply is shut down it will get the correct fault condition. However, inquiry of the state of the power supply after the restart event would indicate that the power supply is functioning correctly. The STATUS and ALARM indicators did not freeze at the original shutdown state and so the reason for the original Alert# is erased. The restart ‘bit’ would be set to indicate that an event has occurred. The power supply also clears the STATUS and ALARM registers after a successful read back of the information in these registers, with the exception of communications error alarms. This automated process improves communications efficiency since the host controller does not have to issue another clear_faults command to clear these registers. Dual, redundant buses: Two independent I2C lines provide true communications bus redundancy and allow two independent controllers to sequentially control the power supply. For example, a short or an open connection in one of the I2C lines does not affect communications capability on the other I2C line. Failure of a ‘master’ controller does not affect the power supplies and the second ‘master’ can take over control at any time. August 16, 2013 Control can be taken over at any time by a specific ‘master’ even during data transmission to the other ‘master’. The ‘master’ needs to be able to handle incomplete transmissions in the multi-master environment in case switching should commence in the middle of data transmission. Master/Slave: The ‘host controller’ is always the MASTER. Power supplies are always SLAVES. SLAVES cannot initiate communications or toggle the Clock. SLAVES also must respond expeditiously at the command of the MASTER as required by the clock pulses generated by the MASTER. Clock stretching: The ‘slave’ µController inside the power supply may initiate clock stretching if it is busy and it desires to delay the initiation of any further communications. During the clock stretch the ‘slave’ may keep the clock LO until it is ready to receive further instructions from the host controller. The maximum clock stretch interval is 25ms. The host controller needs to recognize this clock stretching, and refrain from issuing the next clock signal, until the clock line is released, or it needs to delay the next clock pulse beyond the clock stretch interval of the power supply. Note that clock stretching can only be performed after completion of transmission of the 9th ACK bit, the exception being the START command. Clock Stretch Figure 14. Example waveforms showing clock stretching. Communications speed: Both 100kHz and 400kHz clock rates are supported. The power supplies default to the 100kHz clock rate. ©2013 General Electric Company. All rights reserved. Page 10 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Packet Error Checking: The power supply will not respond to commands without the trailing PEC. The integrity of communications is compromised if packet error correction is not employed. There are many functional features, including turning OFF the main output, that require validation to ensure that the correct command is executed. PEC is a CRC-8 error-checking byte, based on the polynomial C(x) = x8 + x2 + x + 1, in compliance with PMBus™ requirements. The calculation is based in all message bytes, including the originating write address and command bytes preceding read instructions. The PEC is appended to the message by the device that supplied the last byte. SMBusAlert#: The power supply can issue SMBAlert# driven from either its internal micro controller (µC) or from the PCA9541 I2C bus master selector. That is, the SMBAlert# signal of the internal µC funnels through the PCA9541 master selector that buffers the SMBAlert# signal and splits the signal to the two SMBAlert# signal pins exiting the power supply. In addition, the PCA9541 signals its own SMBAlert# request to either of the two SMBAlert# signals when required. Non-supported commands: Non supported commands are flagged by setting the appropriate STATUS bit and issuing an SMBAlert# to the ‘host’ controller. Data out-of-range: The power supply validates data settings and sets the data out-of-range bit and SMBAlert# if the data is not within acceptable range. SMBAlert# triggered by the µC: The µC driven SMBAlert# signal informs the ‘master/host’ controller that either a STATE or ALARM change has occurred. Normally this signal is HI. The signal will change to its LO level if the power supply has changed states and the signal will be latched LO until the power supply receives a ‘clear’ instruction as outlined below. If the alarm state is still present after the ‘clear_faults’ command has been received, then the signal will revert back into its LO level again and will latch until a subsequent ‘clear’ signal is received from the host controller. The signal will be triggered for any state change, including the following conditions; VIN under or over voltage Vout under or over voltage IOUT over current Over Temperature warning or fault Fan Failure Communication error PEC error Invalid command Internal faults Completion of a ‘read_status’ instruction Receiving a CLEAR_FAULTS command The main output recycled (turned OFF and then ON) via the ENABLE signal pin The main output recycled (turned OFF and then ON) by the OPERATION command SMBAlert# triggered by the PCA9541: If clearing the Alert# signal via the clear_faults or read back fails, then reading back August 16, 2013 The PCA9541 can issue an Alert# even when single bus operation is selected where the bus master selector has not been used or addressed. This may occur because the default state of the PCA9541/01 integrated circuit issues Alert# to both i2C lines for all possible transitioning states of the device. For example, a RESET caused by a glitch would cause the Alert# to be active. If the PCA9541 is not going to be used in a specific application (such as when only a single I2C line is utilized), it is imperative that interrupts from the PCA9541 are de-activated by the host controller. To de-activate the interrupt registers the PCA9541 the ‘master’ needs to address the PCA9541 in the ‘write’ mode, the interrupt enable (IE) register needs to be accessed and the interrupt masks have to be set to HI ‘1’. (Note: do not mask bit 0 which transmits Alert# from the power supply). This command setting the interrupt enable register of the PCA9541 is shown below; Start 1 S 7 1 6 1 5 1 Command Code 8 0x00 Unit Address 4 3 0 A2 ACK 1 A 2 A1 1 A0 IE Register 8 0x0E 0 0 ACK 1 A Stop P There are two independent interrupt enable (IE) registers, one for each controller channel (I2C-0 and I2C-1). The interrupt register of each channel needs to be configured independently. That is, channel I2C-0 cannot configure the IE register of I2C-1 or vise-versa. This command has to be initiated to the PC9541 only once after application of power to the device. However, every time a restart occurs the PCA9541 has to be reconfigured since its default state is to issue Alert# for changes to its internal status. If the application did not configure the interrupt enable register the Alert# line can be cleared (de-activated), if it has been activated by the PCA9541, by reading back the data from the interrupt status registers (Istat). Refer to the PCA9541 data sheet for further information on how to communicate to the PCA9541 multiplexer. The power supply will clear the SMBusAlert# signal (release the signal to its HI state) upon the following events: the Alert# status of the PCA9541 will be necessary followed by clearing of the PCA9541 Alert#. Please note that the PCA9541 does not support Packet Error Checking (PEC). Re-initialization: The I2C code is programmed to re-initialize if no activity is detected on the bus for 5 seconds. Reinitialization is designed to guarantee that the I2C µController does not hang up the bus. Although this rate is longer than the timing requirements specified in the SMBus specification, it had to be extended in order to ensure that a re-initialization would not occur under normal transmission rates. During the few µseconds required to accomplish re-initialization the I2C µController may not recognize a command sent to it. (i.e. a start condition). Global broadcast: This is a powerful command because it can instruct all power supplies to respond simultaneously in one command. But it does have a serious disadvantage. Only a single power supply needs to pull down the ninth acknowledge ©2013 General Electric Company. All rights reserved. Page 11 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W bit. To be certain that each power supply responded to the global instruction, a READ instruction should be executed to each power supply to verify that the command properly executed. The GLOBAL BROADCAST command should only be executed for write instructions to slave devices. Note: The PCA9541 i2c master selector does not respond to the GLOBAL BROADCAST command. Read back delay: The power supply issues the SMBAlert # notification as soon as the first state change occurred. During an event a number of different states can be transitioned to before the final event occurs. If a read back is implemented rapidly by the host a successive SMBAlert# could be triggered by the transitioning state of the power supply. In order to avoid successive SMBAlert# s and read back and also to avoid reading a transitioning state, it is prudent to wait more than 2 seconds after the receipt of an SMBAlert# before executing a read back. This delay will ensure that only the final state of the power supply is captured. Successive read backs: Successive read backs to the power supply should not be attempted at intervals faster than every one second. This time interval is sufficient for the internal processors to update their data base so that successive reads provide fresh data. Device ID: Address bits A2, A1, A0 set the specific address of the power supply. The least significant bit x (LSB) of the address byte configures write [0] or read [1] events. In a write command the system instructs the power supply. In a read command information is being accessed from the power supply. 7 6 1 1 1 0 1 0 0 0 MSB PCA9541 Micro controller External EEPROM Global Broadcast 5 1 0 1 0 Address Bit 4 3 2 0 A2 A1 0 A2 A1 0 A2 A1 0 0 0 1 A0 A0 A0 0 PMBusTM Commands Standard instruction: Up to two bytes of data may follow an instruction depending on the required data content. Analog data is always transmitted as LSB followed by MSB. PEC is mandatory and includes the address and data fields. 8 Slave address 8 Low data byte Wr 1 A 1 A 8 Command Code 8 High data byte 1 A 1 A 8 PEC 1 A 1 P Master to Slave Slave to Master SMBUS annotations; S – Start , Wr – Write, Sr – re-Start, Rd – Read, A – Acknowledge, NA – not-acknowledged, P – Stop Direct mode data format: The Direct Mode data format is supported, where y = [ mX + b ] x 10R . In the equation, y is the August 16, 2013 For example, to set the output voltage to 50.45VDC, Multiply the desired set point by the m constant, 50.45 x 400 = 20,180. Convert this binary number to its hex equivalent: 20,180b = 0x4ED4. The result is sent LSB=0xD4 first, then MSB=0x4E. The constants are FUNCTION Output voltage Output voltage shutdown Output Current Temperature Input Voltage Input Power Fan Speed setting ( % ) Fan speed in RPM Operation Write / read m 400 b 0 R 0 read read read read read read 5 1 1 1 1 100 0 0 75 0 0 0 0 0 0 0 0 0 PMBusTM Command set: Command Operation Clear_Faults Vout_command Vout_OV_fault_limit Read_status LEDs test ON LEDs test OFF Service_LED_ON Service_LED_OFF Enable_write Disable_write Inhibit_restart Auto_restart Isolation_test Read_input_string Read_firmware_rev Read_run_timer Fan_speed_set Fan_normal_speed Read_fan_speed Stretch_LO_25ms 0 R/W R/W R/W 0 LSB The Global Broadcast instruction executes a simultaneous write instruction to all power supplies. A read instruction cannot be accessed globally. The three programmable address bits are the same for all I2C accessible devices within the power supply. 1 S data value from the controller and x is the ‘real’ value either being set or returned. Hex Code 01 03 21 40 D0 D2 D3 D4 D5 D6 D7 D8 D9 DA DC DD DE DF E0 E1 E2 Data Field 1 0 2 2 10 0 0 0 0 0 0 0 0 0 2 3 3 3 0 4 0 Function Output ON/OFF Clear Status Set Vout Set OV fault limit Read Status, Vout, Iout, T Test LEDs Service LED Enable EEPROM write Disable EEPROM write Latch upon failure Hiccup Perform isolation test Read Vin and Pin Firmware revisions Accumulated ON state Fan speed control Stop fan control Fan control & speed Production test feature Command Descriptions Operation (01h) : By default the Power supply is turned ON at power up as long as ENABLE is active LO. The Operation command is used to turn the Power Supply ON or OFF via the PMBus. The data byte below follows the OPERATION command. FUNCTION Unit ON Unit OFF DATA BYTE 0x80 0x00 To RESET the power supply cycle the power supply OFF, wait at least 2 seconds, and then turn back ON. All alarms and shutdowns are cleared during a restart. Clear_faults (03h): This command clears information bits in the STATUS registers, these include: Isolation OK Isolation test failed Restarted OK Invalid command ©2013 General Electric Company. All rights reserved. Page 12 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Invalid data PEC error Vout_Command (21h) : This command is used to change the output voltage of the power supply. Changing the output voltage should be performed simultaneously to all power supplies operating in parallel using the Global Address (Broadcast) feature. If only a single power supply is instructed to change its output, it may attempt to source all the required power which can cause either a power limit or shutdown condition. Software programming of output voltage overrides the set point voltage configured during power_up. The program no longer looks at the ‘margin pin’ and will not respond to any hardware voltage setting. The default state cannot be accessed any longer unless power is removed from the DSP. To properly hot-plug a power supply into a live backplane, the system generated voltage should get re-configured into either the factory adjusted firmware level or the voltage level reconfigured by the margin pin. Otherwise, the voltage state of the plugged in power supply could be significantly different than the powered system. Voltage margin range: 42VDC – 58 VDC. A voltage programming example: The task: set the output voltage to 50.45VDC The constants for voltage programming are: m = 400, b and R = 0. Multiply the desired set point by the m constant, 50.45 x 400 = 20,180. Convert this binary number to its hex equivalent: 20,180b = 4ED4h. Transmit the data LSB first, followed by MSB, 0 x D44Eh. Vout_OV_fault_limit (40h) : This command sets the Output Overvoltage Shutdown level. Manufacturer-Specific PMBusTM Commands Many of the manufacturer-specific commands read back more than two bytes. If more than two bytes of data are returned, the standard SMBusTM Block read is utilized. In this process, the Master issues a Write command followed by the data transfer from the power supply. The first byte of the Block Read data field sends back in hex format the number of data bytes, exclusive of the PEC number, that follows. Analog data is always transmitted LSB followed by MSB. A No-ack following the PEC byte signifies that the transmission is complete and is being terminated by the ‘host’. Read_status (D0h) : This ‘manufacturer specific’ command is the basic read back returning STATUS and ALARM register data, output voltage, output current, and internal temperature data in a single read. 1 S 8 Slave address 1 Sr Wr 8 Slave address 8 Status-2 1 A 8 Alarm-1 8 Current August 16, 2013 1 8 A Command Code Rd 8 Status-1 1 A 1 A 8 Byte count = 9 1 A 8 Voltage LSB 1 A 1 A 8 Temperature 8 Alarm-2 1 A 1 A 8 PEC The content and partitioning of these registers is significantly different than the standard register set in the PMBus™ specification. More information is provided by these registers and they are accessed rapidly, at once, using the ‘multi parameter’ read back scheme of this document. There are a total of four registers. All errors, 0 – normal, 1 – alarm. Status-2 Bit PEC Error 6 5 Will Restart Invalid Instruction 4 3 2 Power Capacity Isolation test failed Restarted ok 1 Data out of range 0 Enable pin HI 1 NA 1 P Description Mismatch between computed and transmitted PEC. The instruction has not been executed. Clear_Flags resets this register. Restart after a shutdown = 1 The instruction is not supported. An ALERT# will be issued. Clear_Flags resets this register. High line power capacity = 1 Information only to system controller Informs HOST that a successful RESTART occurred clearing the status and alarm registers Flag appears until the data value is within range. A clear_flags command does not reset this register until the data is within normal range. State of the ENABLE pin, HI = 1 = OFF Isolation test failed: The ‘system controller’ has to determine that sufficient capacity exists in the system to take a power supply ‘off line’ in order to test its isolation capability. Since the power supply cannot determine whether sufficient redundancy is available, the results of this test are provided, but the ‘internal fault’ flag is not set. Status-1 Bit 7 6 5 4 3 2 1 0 Title spare Isolation test OK Internal fault Shutdown Service LED ON External fault LEDs flashing Output ON Description Isolation test completed successfully. The power supply is faulty ON = 1 the power supply is functioning OK LEDs tested test ON = 1 ON = 1 Alarm-2 Bit 2 1 A Title 7 7 6 5 4 3 1 A 8 Voltage MSB 1 A Status and alarm registers 1 0 Title Fan Fault No primary Primary OT DC/DC OT Output voltage lower than bus Thermal sensor failed 5V out_of_limits Power delivery Description No primary detected Primary section OT DC/DC section OT Internal regulation failure Internal failure of a temperature sensing circuit Either OVP or OCP occurred a power delivery fault occurred Power Delivery: The power supply compares its internal sourced current to the current requested by the current share pin. If the difference is > 10A, a fault is issued. ©2013 General Electric Company. All rights reserved. Page 13 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Alarm-1 Bit Title Description 7 Unit in power limit 6 Primary fault 5 4 Over temp. shutdown Over temp warning 3 In over current An overload condition that results in constant power Indicates either primary failure or INPUT not present. Used in conjunction with bit-0 and Status_1 bits 2 and 5 to assess the fault. One of the over_temperature sensors tripped the supply Temperature is too high, close to shutdown Shutdown is triggered by low output voltage < 39VDC. 2 1 Over voltage shutdown Vout out_of_limits 0 Vin out_of_limits Indication the output is not within design limits. This condition may or may not cause an output shutdown. The input voltage is outside design limits LEDS test ON (D2h) : Will turn-ON simultaneously the four front panel LEDs of the Power supply sequentially 7 seconds ON and 2 seconds OFF until instructed to turn OFF. The intent of this function is to provide visual identification of the power supply being talked to and also to visually verify that the LEDs operate and driven properly by the micro controller. LEDS test OFF (D3h) : Will turn-OFF simultaneously the four front panel LEDs of the Power supply. Service LED ON (D4h) : Requests the power supply to flash-ON the Service (ok-to-remove) LED. The flash sequence is approximately 0.5 seconds ON and 0.5 seconds OFF. Service LED OFF (D5h) : Requests the power supply to turn OFF the Service (ok-to-remove) LED. Enable write (D6h) : This command enables write permissions into the upper ¼ of memory locations for the external EEPROM. A write into these locations is normally disabled until commanded through I2C to permit writing into the protected area. A delay of about 10ms is required from the time the instruction is requested to the time that the power supply actually completes the instruction. See the FRU-ID section for further information of content written into the EEPROM at the factory. Disable write (D7h) : This command disables write permissions into the upper ¼ of memory locations for the external EEPROM. Unit in Power Limit or in Current Limit: When output voltage is > 36VDC the Output LED will continue blinking. When output voltage is < 36VDC, if the unit is in the RESTART mode, it goes into a hiccup. When the unit is ON the output LED is ON, when the unit is OFF the output LED is OFF. When the unit is in latched shutdown the output LED is OFF. Inhibit_restart (D8h) : The Inhibit-restart command directs the power supply to remain latched off for over_voltage, over_temperature and over_current. The command needs to be sent to the power supply only once. The power supply will remember the INHIBIT instruction as long as internal bias is active. August 16, 2013 Restart after a lachoff: To restart after a latch_off either of four restart mechanisms are available. The hardware pin Enable may be turned OFF and then ON. The unit may be commanded to restart via i2c through the Operation command by first turning OFF then turning ON . The third way to restart is to remove and reinsert the unit. The fourth way is to turn OFF and then turn ON ac power to the unit. The fifth way is by changing firmware from latch off to restart. Each of these commands must keep the power supply in the OFF state for at least 2 seconds, with the exception of changing to restart. A successful restart shall clear all alarm registers, set the restarted successful bit of the Status_2 register. A power system that is comprised of a number of power supplies could have difficulty restarting after a shutdown event because of the non-synchronized behavior of the individual power supplies. Implementing the latch-off mechanism permits a synchronized restart that guarantees the simultaneous restart of the entire system. A synchronous restart can be implemented by; 1. Issuing a GLOBAL OFF and then ON command to all power supplies, 2. Toggling Off and then ON the ENABLE signal 3. Removing and reapplying input commercial power to the entire system. The power supplies should be turned OFF for at least 20 – 30 seconds in order to discharge all internal bias supplies and reset the soft start circuitry of the individual power supplies. Auto_restart (D9h) : Auto-restart is the default configuration for overvoltage, overcurrent and overtemperature shutdowns. However, overvoltage has a unique limitation. An overvoltage shutdown is followed by three attempted restarts, each restart delayed 1 second, within a 1 minute window. If within the 1 minute window three attempted restarts failed, the unit will latch OFF. If within the 1 minute less than 3 shutdowns occurred then the count for latch OFF resets and the 1 minute window starts all over again. This command resets the power supply into the default autorestart configuration. Isolation test (DAh): This command verifies functioning of output OR’ing. At least two paralleled power supplies are required. The host should verify that N+1 redundancy is established. If N+1 redundancy is not established the test can fail. Only one power supply should be tested at a time. Verifying test completion should be delayed for approximately 30 seconds to allow the power supply sufficient time to properly execute the test. Failure of the isolation test is not considered a power supply FAULT because the N+1 redundancy requirement cannot be verified. The user must determine whether a true isolation fault indeed exists. ©2013 General Electric Company. All rights reserved. Page 14 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Read input string (DCh) : Reads back the input voltage and input power consumed by the power supply. In order to improve the resolution of the input voltage reading the data is shifted by 75V. 1 S 7 Slave address 1 A 1 Sr 1 Wr 1 A 8 Command Code 0xDC 7 Slave Address 8 Byte Count = 4 1 Rd 1 A 8 Power - LSB 1 A 1 A 8 Voltage 8 Power - MSB 1 A 1 A 8 PEC 1 No-ack 1 P Read_firmware_rev [0 x DD]: Reads back the firmware revision of all three µC in the power supply. 1 S 7 Slave address 1 A 1 Sr 1 Wr 7 Slave Address 1 A 1 Rd 8 Primary micro revision 1 A 8 I2c Micro revision 1 A 1 A 1 A 8 DSP revision 1 A 8 PEC 1 A 1 No-ack 1 P For example; the read returns one byte for each device (i.e. 0 x 002114h ). The sequence is primary micro, DSP, and I2C micro. 0x00 in the first byte indicates that revision information for the primary micro is not supported. The number 21 for the DSP indicates revision 2.1, and the number 14 for the i2c micro indicates revision 1.4. Read_run_timer [0 x DE]: This command reads back the recorded operational ON state of the power supply in hours. The operational ON state is accumulated from the time the power supply is initially programmed at the factory. The power supply is in the operational ON state both when in standby and when it delivers main output power. Recorded capacity is approximately 10 years of operational state. 1 S 7 Slave address 1 Sr 1 Wr 7 Slave Address 8 Time - LSB 1 A 8 PEC 1 No-ack 1 A 1 Rd 8 Time 8 Command Code 0xDE 1 A 1 A 1 A 8 Byte count = 4 8 Time - MSB 1 S 8 Slave address 1 Sr 1 A 1 A 1 P 8 PEC 1 NA 1 A Wr 8 Slave address 8 Adjustment % 8 Command Code 0xDD 8 Byte Count = 4 reduce the fan speed below what the power supply requires for internal control. Fan_normal_speed (E0h): This command returns fan control to the power supply. It does not require a trailing data byte. Read_Fan_speed (E1h) : Returns the commanded fan speed in percent and the measured fan speed in RPM from the individual fans. Up to 3 fans are supported. If a fan does not exist (units may contain from 1 to 3 fans), or if the command is not supported the unit return 0x00. Rd 1 A 8 Fan-1 8 Command 0xE1 1 A 1 A 8 Byte count = 5 1 A 8 Fan-2 1 A 1 A 8 Fan-3 1 A 1 P Stretch_LO_25ms (E2h) : Command used for production test of the clock stretch feature. None supported commands or invalid data: The power supply notifies the MASTER if a non-supported command has been sent or invalid data has been received. Notification is implemented by setting the appropriate STATUS and ALARM registers and setting the SMBAlert# flag. Fault Management The power supply records faults in the STATUS and ALARM registers above and notifies the MASTER controller as described in the Alarm Notification section of the nonconforming event. The STATUS and ALARM registers are continuously updated with the latest event registered by the rectifier monitoring circuits. A host responding to an SMBusALERT# signal may receive a different state of the rectifier if the state has changed from the time the SMBusALERT# has been triggered by the rectifier. The power supply differentiates between internal faults that are within the power supply and external faults that the power supply protects itself from, such as overload or input voltage out of limits. The FAULT LED, FAULT PIN or i2c alarm is not asserted for EXTERNAL FAULTS. Every attempt is made to annunciate External Faults. Some of these annunciations can be observed by looking at the input LEDs. These fault categorizations are predictive in nature and therefore there is a likelihood that a categorization may not have been made correctly. Input voltage out of range: The Input LED will continue blinking as long as sufficient power is available to power the LED. If the input voltage is completely gone the Input LED is OFF. Fan_speed_set (DFh) : This command instructs the power supply to increase the speed of the fan. The transmitted data byte represents the hex equivalent of the duty cycle in percentage, i.e. 100% = 0 x 64h. The command can only increase fan speed, it cannot instruct the power supply to August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 15 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W State Change Definition External EEPROM A state_change is an indication that an event has occurred that the MASTER should be aware of. The following events shall trigger a state_change; A 64k-bit EEPROM is provided across the I2C bus. This EEPROM is used for both storing FRU_ID information and for providing a scratchpad memory function for customer use. Initial power-up of the system when AC gets turned ON . This is the indication from the rectifier that it has been turned ON. Note that the master needs to read the status of each power supply to reset the system_interrupt. If the power supply is back-biased through the 8V_INT or the 5VSTB it will not issue an SMBALERT# when AC power is turned back ON. Whenever the power supply gets hot-plugged into a working system. This is the indicator to the system (MASTER) that a new power supply is on line. Any changes in the bit patterns of the STATUS and ALARM registers are a STATUS change which triggers the SMBALERT# flag. Note that a host-issued command such as CLEAR_FAULTS will not trigger an SMB Functionally the EEPROM is equivalent to the ST M34D64 part that has its memory partitioned into a write protected upper ¼ of memory space and the lower ¾ section that cannot be protected. FRU_ID is written into the write protected portion of memory. Write protect feature: Writing into the upper 1/4 of memory can be accomplished either by hardware or software. The power supply pulls down the write_protect (Wp) pin to ground via a 500Ω resistor between the ‘module_present’ signal pin and Logic_GRD (see the Module Present Signal section of Input Signals). Writing into the upper ¼ of memory can be accomplished by pulling HI the module_present pin. Hot plug procedures Careful system control is recommended when hot plugging a power supply into a live system. It takes about 15 seconds for a power supply to configure its address on the bus based on the analog voltage levels present on the backplane. If communications are not stopped during this interval, multiple power supplies may respond to specific instructions because the address of the hot plugged power supply always defaults to xxxx000 (depending on which device is being addressed within the power supply) until the power supply configures its address. The recommended procedure for hot plug is the following: The system controller should be told which power supply is to be removed. The controller turns the service LED ON, thus informing the installer that the identified power supply can be removed from the system. The system controller should then poll the module_present signal to verify when the power supply is re-inserted. It should time out for 15 seconds after this signal is verified. At the end of the time out all communications can resume. An alternative, and the recommended approach, is to issue the Enable_write command via software. Page implementation: The external EEPROM is partitioned into 32 byte pages. For a write operation only the starting address is required. The device automatically increments the memory address for each byte of additional data it receives. However, if the 32 byte limit is exceeded the device executes a wraparound that will start rewriting from the first address specified. Thus byte 33 will replace the first byte written, byte 34 the second byte and so on. One needs to be careful therefore not to exceed the 32 byte page limitation of the device. Predictive Failures Alarm warnings that do not cause a shutdown are indicators of potential future failures of the power supply. For example, if a thermal sensor failed, a warning is issued but an immediate shutdown of the power supply is not warranted. Another example of potential predictive failure mechanisms can be derived from information such as fan speed when multiple fans are used in the same power supply. If the speed of the fans varies by more than 20% from each other, this is an indication of an impending fan wear out. The goal is to identify problems early before a protective shutdown would occur that would take the power supply out of service. August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 16 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Table 1: FRU_ID The upper quarter of memory starting from address 6144 shall be reserved for factory ID and factory data. Memory Location Decimal Memory Location (HEX) Length (bytes) Format Static Value Type Description Notes/Example 6144d 6156d 6166d 6172d 6178d 0x1800 0x180C 0x1816 0x181C 0x1822 12 10 6 6 14 ASCII ASCII ASCII ASCII ASCII Fixed Fixed Variable Variable Variable GE-energy - Product ID GE-energy – Part Number GE-energy - Hardware revision spare GE-energy - Serial_No 6192d 6232d 6240d 6242d 0x1830 0x1858 0x1860 0x1862 40 8 2 158 ASCII ASCII HEX ASCII Variable Fixed Fixed Fixed GE- Manufacturing location spare spare Customer Information 6400d 6405d 6410d 6415d 6420d 6425d 6430d 6431d 6436d 6441d 6446d 0x1900 0x1905 0x190A 0x190F 0x1914 0x1919 0x191E 9x191F 0x1924 0x1929 0 x 192E 5 5 5 5 5 5 1 5 5 5 5 HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX HEX Fixed Fixed Fixed Fixed Fixed Fixed Variable Fixed Fixed Fixed Fixed M, B, & R for voltage read M, B, & R for current read M, B, & R temp read spare M, B, & R for voltage set M, B, & R for input voltage read Validation CHKSUM M, B, & R for input power read M, B, & R for fan percent adjust M, B, & R for fan RPM read M, B, & R for converter input voltage read CP2500AC54TE 123456789x or C123456789 x:xxxx controlled by PDI series # 01KZ51018193xx 01 …. Year of manufacture - 2001 KZ … factory, in this case Matamoros 51 .. week of manufacture ______018193xx serial # mfg choice “Matamoros, Tamps, Mexico” These fields are reserved for use by the customer. M & B are 2 bytes each sent as MSB and then LSB. R is one byte. These are stored as two’s complement. See the section on Direct Mode Constants Stored in the EEPROM for the constants stored in these fields Notes: CHkSUM is a CRC-8 calculation from location 0x1800 to location 0x19FF without including serial number and checksum locations. chksum_value = 0xFF - (mask of SUM with 0x0000ff) write chksum_value byte to location 0x191E. Table 2: Alarm and LED state summary Condition AC OK Green Power Supply LED State DC OK Service Fault Green Amber Red Monitoring Signals Fault OTW PFW Module Present LO OK 1 1 0 0 HI HI HI Thermal Alarm (5C before shutdown) 1 1 1 0 HI LO HI LO Thermal Shutdown 1 0 1 1 LO LO LO LO Defective Fan 1 0 0 1 LO HI LO LO Blown AC Fuse in Unit 1 0 0 1 LO HI LO LO Blinks 0 0 0 HI HI LO LO AC not present1 0 0 0 0 HI HI LO LO Boost Stage Failure 1 0 0 1 LO HI LO LO Over Voltage Latched Shutdown 1 0 0 1 LO HI LO LO Over Current 1 Blinks 0 0 HI HI LO LO Non-catastrophic Internal Failure2 1 1 0 1 LO HI HI LO Standby (remote) 1 0 0 0 HI HI LO LO Service Request (PMBus mode) 1 1 Blinks 0 HI HI HI LO Communications Fault (RS485 mode) 1 1 0 Blinks HI HI HI LO AC Present but not within limits Missing Module HI This signal is correct if the rectifier is back biased from other rectifiers in the shelf . 2 Any detectable fault condition that does not cause a shutting down. For example, ORing FET failure, boost section out of regulation, etc. 3 Signal transition from HI to LO is output load dependent 1 August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 17 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Table 3: Signal Definitions All hardware alarm signals (Fault, PFW, OTW, Power Capacity) are open drain FETs. These signals need to be pulled HI to either 3.3V or 5V. Maximum sink current 5mA. An active LO signal (< 0.4VDC) state. All signals are referenced to Logic_GRD unless otherwise stated. Function Label Type Enable Power Fail Warning PFW Output An open drain FET; Changes to LO 5msec before the output decays below 40VDC. I C Interrupt Alert#_0/Alert#_1 Output This signal is pulled to 3.3V via a 10kΩ resistor. Active LO. Rectifier Fault Fault Output An open drain FET; normally HI, changes to LO. Module Present MOD_PRES Output Short pin, see Status and Control description for further information on this signal. ON/OFF ON/OFF Input Short pin, controls main output during hot-insertion and extraction. Ref: Vout ( - ) Protocol select Protocol Input Selects operational mode. Ref: Vout ( - ). No-connect PMBus, 10kΩ - RS485 Margining Margin Input Over-Temperature Warning OTW Output Open drain FET; normally HI, changes to LO 5°C prior to thermal shutdown. Power Capacity POWER_CAP Output Open drain FET; HI indicates 2500W operation and LO indicates 1200W operation. 2 Input Description Output Enable If shorted to Logic_GRD main output is ON in Analog or PMBus mode. Changes the default set point of the main output. Rectifier address Unit_addr Input Voltage level addressing of Rectifiers within a single shelf. Ref: Vout ( - ). Shelf Address Shelf_addr Input Voltage level addressing of Rectifiers within multiple shelves. Ref: Vout ( - ). Back bias 8V_INT Mux Reset Reset Bi-direct Used to back bias the DSP from operating Rectifiers. Ref: Vout ( - ). Standby power 5VA Output Current Share Ishare Bi-direct A single wire active-current-share interconnect between modules Ref: Vout ( - ). I2C Line 0 SCL_0 Input Input Resets the internal PCA9541 multiplexer 5V at 0.75A provided for external use PMBus line 0. I C Line 0 SDA_0 I2C Line 1 SCL_1 I2C Line 1 SDA_1 SMBALERT# Line 0 ALERT#_0 SMBALERT# Line 1 ALERT#_1 RS485 Line RS_485+ Bi-direct RS485 line + RS485 Line RS_485- Bi-direct RS485 line - 2 August 16, 2013 Bi-direct PMBus line 0. Input PMBus line 1. Bi-direct PMBus line 1. Output PMBus line 0 interrupt Output PMBus line 1 interrupt ©2013 General Electric Company. All rights reserved. Page 18 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Mechanical Outline Dimensions 351.2 mm (13.85 in) 101.6mm (4.00 in) Top View 41.4mm (1.63 in) Rear View Front View Front Panel LEDs Analog Mode I2C Mode RS485 Mode ON: Input ok Blinking: Input out of limits ON: Output ok Blinking: Overload ON: Over-temperature Warning Blinking: Service ON: Over-temperature Warning ! ON: Over-temperature Warning ON: Fault Blinking: Not communicating ON: Fault Output Connector Mating Connector: right angle PWB mate – all pins: AMP 6450572-1, right angle PWB mate except pass-thru input power: AMP 6450378-1 A6 A1 P7 P1 Manufacturer part numbers: FCI 51939-568 SIGNAL A B C D 6 SCL_0 SCL_1 SDA_0 SDA_1 5 MOD_PRES OTW Margin Fault 4 PFW Alert#_0 Enable 5VA 3 LOGIC_GRD Alert#_1 Reset Power_Cap 2 RS_485+ RS_485Ishare ON/OFF 1 UNIT_ADDR 8V_INT Protocol SHELF_ADDR P7 V_OUT (-) OUTPUT POWER P6 P5 V_OUT (+) V_OUT (+) P4 P3 INPUT POWER P2 P1 V_OUT (-) EARTH (GND) LINE-2 (Neutral) LINE-1 (HOT) Note: Connector is viewed from the rear positioned inside the rectifier Signal pins columns 1 and 2 are referenced to V_OUT (–) Signal pins columns 3 through 6 are referenced to Logic GRD Last to make-first to break shortest pin First make-last to break longest pin implemented in the mating connector Earth August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 19 GE Data Sheet CP2500AC54TE CPL High Efficiency Rectifier 100-120/200-277VAC input; Default Outputs: ±54VDC @ 2500W, 5VDC @ 4W Ordering Information Please contact your Lineage Power Sales Representative for pricing, availability and optional features. Table 4: Device Codes Item CP2500AC54TEZ Description Comcode 54VDC @ 46.3A, 5VDC @ 0.75A, RoHS 6/6 CC109172680 Contact Us For more information, call us at USA/Canada: +1 888 546 3243, or +1 972 244 9288 Asia-Pacific: +86.021.54279977*808 Europe, Middle-East and Africa: +49.89.878067-280 India: +91.80.28411633 www.ge.com/powerelectronics August 16, 2013 ©2013 General Electric Company. All rights reserved. Page 20