EMD-SL-C-OC-10 Electronic monitoring relay for overcurrent monitoring of direct and alternating current in single-phase networks INTERFACE Data sheet 101745_en_04 1 © PHOENIX CONTACT - 09/2009 Description Increasingly higher demands are being placed on safety and system availability – across all sectors. Processes are becoming more and more complex, not only in mechanical engineering and the chemical industry, but also in plant and automation technology. Demands on power engineering are also increasing constantly. Features – – – – – Overcurrent monitoring Adjustable threshold values Adjustable hysteresis Adjustable response delay Power supply via power module can be selected Error-free and therefore cost-effective operation can only be achieved through continuous monitoring of important network and system parameters. Electronic monitoring relays in the EMD series are available for a wide range of monitoring tasks to avoid the consequences of errors or to keep them within limits. The operating states are indicated using colored LEDs, errors that may occur can be sent to a control system via a floating contact or can shut down a part of the system. Some device versions are equipped with startup and response delays in order to briefly tolerate measured values outside the set monitoring range. WARNING: Risk of electric shock Never carry out work when voltage is present. Make sure you always use the latest documentation. It can be downloaded at www.phoenixcontact.net/download. EMD-SL-C-OC-10 2 Ordering data Description Type Order No. Pcs. / Pkt. Electronic monitoring relay for overcurrent monitoring of direct and alternating current in single-phase networks EMD-SL-C-OC-10 2866019 1 Accessories Type Order No. Pcs. / Pkt. Power modules, pluggable, for EMD-SL-..., supply voltage: 20 V DC ... 30 V DC EMD-SL-PS- 24DC 2885359 1 Power modules, pluggable, for EMD-SL-..., supply voltage: 20.2...26.4 V AC EMD-SL-PS- 24AC 2866103 1 Power modules, pluggable, for EMD-SL-..., supply voltage: 88...121 V AC EMD-SL-PS-110AC 2866116 1 Power modules, pluggable, for EMD-SL-..., supply voltage: 108 V AC ... 132 V AC EMD-SL-PS-120AC 2885731 1 Power modules, pluggable, for EMD-SL-..., supply voltage: 195...264 V AC EMD-SL-PS-230AC 2866129 1 3 Technical data Input data Input name Measuring input Measured value DC, AC sine Input current range 0 mA ... 100 mA AC/DC (Connection terminals: I1 and GND) 0 A ... 1 A AC/DC (Connection terminals: I2 and GND) 0 A ... 10 A AC/DC (Connection terminals: I3 and GND) Overload capacity 800 mA (at IN = 100 mA) 3 A (at IN = 1 A) 12 A (at IN = 10 A) Input resistance current input 470 mΩ (at IN = 100 mA) 47 mΩ (at IN = 1 A) 5 mΩ (at IN = 10 A) Maximum temperature coefficient < 0.1 %/K Setting range for response delay 0.2 s ... 10 s Min. setting range 5 % ... 95 % (From IN) Max. setting range 10 % ... 100 % (From IN) Function Overcurrent Basic accuracy ± 5 % (of scale end value) Setting accuracy ≤ 5 % (of scale end value) Repeat accuracy ≤2% Recovery time 500 ms Output data Contact type 1 floating PDT Nominal insulation voltage 250 V AC (in acc. with IEC 60664-1) Interrupting rating (ohmic load) max. 750 VA (3 A/250 V AC, module aligned, ≤ 5 mm spacing) 1250 VA (5 A/250 V AC, module not aligned, ≥ 5 mm spacing) Output fuse 5 A (fast-blow) 101745_en_04 PHOENIX CONTACT 2 EMD-SL-C-OC-10 Supply Range of supply voltages 24 V AC ... 230 V AC (see Power modules) 24 V DC (see Power modules) Frequency range 48 Hz ... 63 Hz Nominal power consumption 2 VA (1.5 W) General data Mains type 1-phase Service life mechanical Approx. 2 x 107 cycles Service life, electrical 2 x 105 cycles at ohmic load, 1000 VA Switching frequency max. 60 (per minute at 100 VA ohmic load) max. 6 (per minute at 1000 VA ohmic load) Voltage drop > 30 % (Relative to the supply voltage) Operating mode 100% operating factor Degree of protection IP40 (housing) / IP20 (connection terminal blocks) Pollution degree 2 (according to EN 50178) Surge voltage category III, basic insulation (as per EN 50178) Rated insulation voltage 300 V (According to EN 50178) Assembly on TS 35 profile rail acc. to EN 60715 Mounting position Any Width 22.5 mm Height 113 mm Length 90 mm Type of housing Polyamide PA, self-extinguishing Color green Weight 160 g Connection data Conductor cross section, solid 0.5 mm² ... 2.5 mm² Conductor cross section, stranded 0.25 mm² ... 2.5 mm² Stripping length 8 mm Type of connection Screw connection Tightening torque 1 Nm Ambient conditions Ambient temperature (operation) -25 °C ... 55 °C -25 °C ... 40 °C (corresponds to UL 508) Ambient temperature (storage/transport) -25 °C ... 70 °C Permissible humidity (operation) 15 % ... 85 % Climatic class 3K3 (in acc. with EN 60721) Conformance / approvals Conformity CE compliant UL, USA / Canada UL/C-UL listed UL 508 Conformance with EMC directive 2004/108/EC Immunity to interference according to EN 61000-6-2 Emitted interference according to EN 61000-6-3 Conformance with LV directive 2006/95/EC Electronic equipm. for electrical power installations according to 101745_en_04 EN 50178 PHOENIX CONTACT 3 EMD-SL-C-OC-10 4 Block diagram 16 18 I1 100 mA I2 1A I3 10 A 15 GND A1 POWER MODULE A2 5 U = 24 V DC 24...230 V AC Safety notes WARNING: Risk of electric shock Never carry out work when voltage is present. 6 Structure GN D I2 15 I3 MA 40 70 X( 100 %) MIN (% 95 ) 5 REL 16 DE LA 18 Y( 10 s) 8 A2 5 101745_en_04 "U" LED: Supply voltage "MAX" LED: Upper threshold value "MIN" LED: Lower threshold value "REL" LED: Output relay "DELAY" potentiometer: Response delay "MIN" potentiometer: Lower threshold value "MAX" potentiometer: Upper threshold value Universal snap-on foot for EN DIN rails Power module 9 60 5 0 4 current monitor 50 10 EMD-SL-C-OC-10 3 MIN MAX 2 A1 I1 C 0A -2312 9 -PS 6 SL 8 6 D- o.:2 EM .-N rd O ~ 0V 23 2VVA Hz 64 /60 0 2 505 23 19 U 1 1 2 3 4 5 6 7 8 9 6 7 PHOENIX CONTACT 4 EMD-SL-C-OC-10 7 Power supply The power module for power supply is supplied in a transport casing to prevent the connection legs from being bent. To install the power module in the relay housing, remove the transport casing and position the power module in the recess in the side of the housing (ensure that it is the right way round). The red locking latches snap in with an audible click when the power module is securely positioned. To remove the power module, press the two red locking latches together and pull out the power module. 8 Installation WARNING: Risk of electric shock Never carry out work when voltage is present. The module can be snapped onto all 35 mm DIN rails according to EN 60715. 9 Diagnostics The LEDs indicate the following error states: "U" LED (Green) – LED ON: Supply voltage present "MIN" and "MAX" LEDs (Red) – – – "MAX" LED flashes: Maximum value exceeded, set delay time is running "MAX" LED ON: Maximum value exceeded, delay time has elapsed Both LEDs flash alternately: Lower set threshold value is greater than upper threshold value "REL" LED (Yellow) – – LED ON: Output relay has picked up LED OFF: Output relay has dropped out 101745_en_04 PHOENIX CONTACT 5 EMD-SL-C-OC-10 10 Connection examples L1 L2 L3 N L1 L2 L3 N 24 V ~~ 0V A1 GND 15 I1 I2 I3 A1 GND 15 I1 I2 15 15 16 18 16 18 16 18 A2 100 mA (I1) measuring range with 24 V AC power module 16 18 I3 A2 1 A (I2) measuring range with 230 V AC power module L1 L2 L3 N A1 GND 15 I1 I2 I3 15 16 16 18 18 A2 10 A (I3) measuring range with 230 V AC power module 101745_en_04 PHOENIX CONTACT 6 EMD-SL-C-OC-10 11 Function Overcurrent Monitoring (OVER) U LED U LED MAX LED MIN LED REL, R MAX MIN DELAY 101745_en_04 < DELAY DELAY When supply voltage U is applied, output relay "R" picks up (yellow "REL" LED is ON). If the measured current exceeds the value set at the "MAX" controller, the set response delay (DELAY) starts (red "MAX" LED flashes). After the delay time has elapsed (red "MAX" LED is ON), output relay "R" drops out (yellow "REL" LED is OFF). If the measured current falls below the value set at the "MIN" controller (red "MAX" LED is OFF), output relay "R" picks up again (yellow "REL" LED is ON). The "MIN" and "MAX" LEDs flash alternately if the minimum value selected for the measured current is greater than the maximum value. PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany • Phone: +49-(0) 5235-3-00 PHOENIX CONTACT • P.O.Box 4100 • Harrisburg • PA 17111-0100 • USA • Phone: +717-944-1300 www.phoenixcontact.com 7