NX-series SSI Input Unit NX-ECS@@@ CSM_NX-ECS____DS_E_3_5 Read position information from encoders with Synchronous Serial Interface (SSI). • Process SSI encoder input data using the MC Function Modules of the NJ-series Machine Automation Controller. • Encoder data can be synchronised with the control cycle and EtherCAT Distributed Clock. Features • SSI clock frequency is supported up to 2 MHz. • High-speed remote I/O control with communications cycle as fast as 125 μs.*1 • Free-Run refreshing or Synchronous I/O refreshing, Task Period Prioritized refreshing *2, can be selected for refreshing with the NX-series EtherCAT Coupler. • When the MC Function Modules of the NJ/NX-series Machine Automation Controller are used, the encoder input can be used for motion control instructions as an “axis”. • Choice of SSI Coding Methods (No conversion, binary code, or gray code) • Input edge time stamps • Multi turn and single turn SSI encoders are supported. • Data Refresh Status (Data refreshing can be checked on the host controller.) • Maximum connecting SSI cable length:400m *1. When using the NX-EC01@@ together with the NX701-@@@@ and NX-ECC203. *2. Task Period Prioritized refreshing is available when the NX-ECC203 is used together. System Configuration Support Software (Sysmac Studio) EtherCAT master (NJ/NX-series CPU Unit) Connection to the peripheral USB port or built-in EtherNet/IPTM port on an NJ/NX-series CPU Unit EtherCAT communications cable SSI Input Unit EtherCAT Coupler Unit I/O power supply SSI encoder * * The SSI encoder is supplied with 24-VDC power from the SSI Input Unit. Sysmac is a trademark or registered trademark of OMRON Corporation in Japan and other countries for OMRON factory automation products. EtherCAT® is a registered trademark of Beckhoff Automation GmbH for their patented technology. Other company names and product names in this document are the trademarks or registered trademarks of their respective companies. 1 NX-ECS@@@ Ordering Information International Standards • The standards are abbreviated as follows: U: UL, U1: UL(Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus, UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, CE: EC Directives, and KC: KC Registration. • Contact your OMRON representative for further details and applicable conditions for these standards. Unit type Product Name Specification Number of channels SSI Input Units Input/Output form Maximum data length Encoder power supply Type of external connections Model Standards 1 EIA standard RS-422-A 32 bits Screwless push-in DC24V, 0.3A/CH terminal block (12 terminals) NX-ECS112 UC1, N, L, CE, KC 2 EIA standard RS-422-A 32 bits Screwless push-in DC24V, 0.3A/CH terminal block (12 terminals) NX-ECS212 UC1, N, L, CE, KC NX Series Position Interface Unit Option Product Name Unit/Terminal Block Coding Pins Specification For 10 Units (Terminal Block: 30 pins, Unit: 30 pins) Model Standards NX-AUX02 --- Model Standards Specification Product Name No. of terminals Terminal Block 12 Terminal number indications A/B Ground terminal mark None Terminal current capacity 10 A NX-TBA122 --- Accessories Not included. 2 NX-ECS@@@ General Specification Item Enclosure Grounding method Operating environment Specification Mounted in a panel Ground to less than 100 Ω Ambient operating temperature 0 to 55°C Ambient operating humidity 10% to 95% (with no condensation or icing) Atmosphere Must be free from corrosive gases. Ambient storage temperature −25 to 70°C (with no condensation or icing) Altitude 2,000 m max. Pollution degree Pollution degree 2 or less: Conforms to JIS B3502 and IEC 61131-2. Noise immunity Conforms to IEC61000-4-4, 2 kV (power supply line) Overvoltage category Category II: Conforms to JIS B3502 and IEC 61131-2. EMC immunity level Zone B Vibration resistance Conforms to IEC 60068-2-6. 5 to 8.4 Hz with 3.5-mm amplitude, 8.4 to 150 Hz, acceleration of 9.8 m/s2, 100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100 min total) Shock resistance Conforms to IEC 60068-2-27. 147 m/s2, 3 times each in X, Y, and Z directions Applicable standards cULus: Listed UL508 and ANSI/ISA 12.12.01 EC: EN 61131-2 and C-Tick, KC Registration, NK, LR 3 NX-ECS@@@ Specification SSI Input Units 1 channel NX-ECS112 Unit name SSI Input Units Model NX-ECS112 Number of channels 1 channel Type of external connections Screwless push-in terminal block (12 terminals) I/O refreshing method Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *1 Indicators External inputs: 2 Data input (D+,D−) External outputs: 2 Clock output (C+, C−) Input signals I/O interface Synchronized serial interface (SSI) Clock output EIA standard RS-422-A line driver levels Data input EIA standard RS-422-A line receiver levels Maximum data length 32 bits (The single-turn, multi-turn, and status data length can be set.) Coding method No conversion, binary code, or gray code Baud Rate 100 kHz, 200 kHz, 300 kHz, 400 kHz, 500 kHz, 1.0 MHz, 1.5 MHz, or 2.0 MHz Dimensions 12 × 100 × 71 mm (W×H×D) Isolation method Digital isolator Insulation resistance 20 MΩ min. between isolated circuits (at 100 VDC) Dielectric strength 510 VAC between isolated circuits for 1 minute with leakage current of 5 mA max. I/O power supply source Supplied from the NX bus. Current capacity of I/O IOV: 0.3 A max. per terminal 20.4 to 28.8 VDC (24 VDC +20%/−15%) power supply terminals IOG: 0.3 A max. per terminal Current consumption from I/O power supply NX Unit power consumption 0.85 W Maximum transmission distance *2 Weight 20 mA Baud Rate Maximum transmission distance 100 kHz 400 m 200 kHz 190 m 300 kHz 120 m 400 kHz 80 m 500 kHz 60 m 1.0 MHz 25 m 1.5 MHz 10 m 2.0 MHz 5m 65 g SSI Clock Output and Data Input C+ CNo isolation: 5 V Isolation circuit Internal circuits Terminal block D+ Circuit layout D- 120 Ω No isolation: 5 V GND Nonisolated power supply Left-side NX bus connector Installation orientation and restrictions I/O power supply + I/O power supply + I/O power supply − I/O power supply − Right-side NX bus connector Installation orientation: 6 possible orientations Restrictions: There are no restrictions. Terminal connection diagram Failure detection No isolation: 5 V No isolation: 5 V GND None C+ D+ C- D- IOV IOV IOG IOG NC NC NC NC Protection Encoder None *1. The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit. Refer to information on the I/O refreshing methods in the W524 manual for the communications cycles for each model. *2. The maximum transmission distance for an SSI Input Unit depends on the baud rate due to the delay that can result from the responsiveness of the connected encoder and cable impedance. The maximum transmission distance is only a guideline. Review the specifications for the cables and encoders in the system and evaluate the operation of the equipment before use. 4 NX-ECS@@@ SSI Input Units 2 channel NX-ECS212 Unit name Number of channels I/O refreshing method SSI Input Units Model NX-ECS212 Type of external Screwless push-in terminal block 2 channels connections (12 terminals) Free-Run refreshing, synchronous I/O refreshing or task period prioritized refreshing *1 Indicators External inputs: 2 Data input (D+, D−) External outputs: 2 Clock output (C+, C−) Input signals I/O interface Clock output Data input Maximum data length Coding method Baud Rate Dimensions Synchronized serial interface (SSI) EIA standard RS-422-A line driver levels EIA standard RS-422-A line receiver levels 32 bits (The single-turn, multi-turn, and status data length can be set.) No conversion, binary code, or gray code 100 kHz, 200 kHz, 300 kHz, 400 kHz, 500 kHz, 1.0 MHz, 1.5 MHz, or 2.0 MHz 12 × 100 × 71 mm (W×H×D) Isolation method Digital isolator 20 MΩ min. between isolated circuits (at 510 VAC between isolated circuits for 1 Insulation resistance Dielectric strength 100 VDC) minute with leakage current of 5 mA max. Supplied from the NX bus. Current capacity of I/O IOV: 0.3 A max. per terminal I/O power supply source 20.4 to 28.8 VDC (24 VDC +20%/−15%) power supply terminals IOG: 0.3 A max. per terminal Current consumption NX Unit power consumption 0.9 W 30 mA from I/O power supply Baud Rate Maximum transmission distance 100 kHz 400 m 200 kHz 190 m 300 kHz 120 m Maximum transmission 400 kHz 80 m *2 distance 500 kHz 60 m 1.0 MHz 25 m 1.5 MHz 10 m 2.0 MHz 5m Weight 65 g SSI Clock Output and Data Input C1+, C2+ C1-, C2No isolation: 5 V Terminal block Isolation circuit Internal circuits D1+, D2+ Circuit layout D1-, D2- 120 Ω No isolation: 5 V GND Nonisolated power supply Left-side NX bus connector Installation orientation and restrictions Terminal connection diagram No isolation: 5 V No isolation: 5 V GND I/O power supply + I/O power supply + I/O power supply − I/O power supply − Right-side NX bus connector Installation orientation: 6 possible orientations Restrictions: There are no restrictions. Encoder C1+ D1+ C1- D1- IOV IOV IOG IOG C2+ D2+ C2- D2- Encoder Failure detection None Protection None *1. The I/O refreshing method is automatically set according to the connected Communications Coupler Unit and CPU Unit. Refer to information on the I/O refreshing methods in the W524 manual for the communications cycles for each model. *2. The maximum transmission distance for an SSI Input Unit depends on the baud rate due to the delay that can result from the responsiveness of the connected encoder and cable impedance. The maximum transmission distance is only a guideline. Review the specifications for the cables and encoders in the system and evaluate the operation of the equipment before use. 5 NX-ECS@@@ Version Information NX Units Model NX-ECS112 NX-ECS212 Corresponding unit versions/versions * Unit Version EtherCAT Coupler Units NX-ECC20@ NJ/NX-series CPU Units Ver.1.0 Ver.1.1 Ver.1.0 Sysmac Studio Ver.1.06 or higher Ver.1.0 or later Ver.1.05 or later Ver.1.08 or higher Ver.1.06 or higher Ver.1.1 Ver.1.08 or higher * Some Units do not have all of the versions given in the above table. If a Unit does not have the specified version, support is provided by the oldest available version after the specified version. Refer to the user’s manuals for the specific Units for the relation between models and versions. 6 NX-ECS@@@ External Interface SSI Input Unit NX-ECS112/212 (B) (C) (A) Letter (A) (B) (C) Item NX bus connector Indicators Specification This connector is used to connect to another Unit. The indicators show the current operating status of the Unit. The terminal block is used to connect to external devices. The number of terminals depends on the Unit. Terminal block Terminal Blocks (A) (B) A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 A8 B8 (C) 12 mm wide 16 terminals Letter Item (A) Terminal number indication (B) (C) Release hole Terminal hole Specification The terminal number is identified by a column (A and B) and a row (1 through 8). Therefore, terminal numbers are written as a combination of columns and rows, A1 through A8 and B1 through B8. The terminal number indication is the same regardless of the number of terminals on the terminal block, as shown above. A flat-blade screwdriver is inserted here to attach and remove the wiring. The wires are inserted into these holes. Applicable Terminal Blocks for Each Unit Model Unit model NX-ECS122 NX-ECS212 Model NX-TBA122 NX-TBA122 No. of terminals 12 12 Terminal Blocks Terminal number indications A/B A/B Ground terminal mark None None Terminal current capacity 10 A 10 A 7 NX-ECS@@@ Applicable Wires Using Ferrules If you use ferrules, attach the twisted wires to them. Observe the application instructions for your ferrules for the wire stripping length when attaching ferrules. Always use plated one-pin ferrules. Do not use unplated ferrules or two-pin ferrules. The applicable ferrules, wires, and crimping tool are given in the following table. Terminal types Manufacturer Terminals other than ground terminals Phoenix Contact Ground terminals Terminals other than ground terminals Weidmuller Ferrule model AI0,34-8 AI0,5-8 AI0,5-10 AI0,75-8 AI0,75-10 AI1,0-8 AI1,0-10 AI1,5-8 AI1,5-10 AI2,5-10 H0.14/12 H0.25/12 H0.34/12 H0.5/14 H0.5/16 H0.75/14 H0.75/16 H1.0/14 H1.0/16 H1.5/14 H1.5/16 Applicable wire (mm2 (AWG)) 0.34 (#22) 0.5 (#20) Crimping tool Phoenix Contact (The figure in parentheses is the applicable wire size.) CRIMPFOX 6 (0.25 to 6 mm2, AWG 24 to 10) 0.75 (#18) 1.0 (#18) 1.5 (#16) 2.0 *1 0.14 (#26) 0.25 (#24) 0.34 (#22) 0.5 (#20) Weidmueller (The figure in parentheses is the applicable wire size.) PZ6 Roto (0.14 to 6 mm2, AWG 26 to 10) 0.75 (#18) 1.0 (#18) 1.5 (#16) *1. Some AWG 14 wires exceed 2.0 mm2 and cannot be used in the screwless clamping terminal block. When you use any ferrules other than those in the above table, crimp them to the twisted wires so that the following processed dimensions are achieved. 8 to 10 mm 1.6 mm max. (Terminals other than ground terminals) 2.4 mm max. (Terminals other than ground terminals) 2.7 mm max. (Ground terminals) 2.0 mm max. (Ground terminals) Using Twisted Wires/Solid Wires If you use the twisted wires or the solid wires, use the following table to determine the correct wire specifications. Terminals Classification Current capacity Wire type Twisted wires Plated 2 A max. All terminals except ground terminals Ground terminals Greater than 2 A and 4 A or less Possible Greater than 4A Possible *1 --- Possible Solid wire Unplated Plated Unplated Possible Possible Possible Not Possible Possible Possible *1 Not Possible Possible *2 Not Possible Possible *2 Wire size Conductor length (stripping length) 0.08 to 1.5 mm2 AWG28 to 16 8 to 10 mm 2.0 mm2 9 to 10 mm *1 Secure wires to the screwless clamping terminal block. Refer to the Securing Wires in the USER'S MANUAL for how to secure wires. *2 With the NX-TB@@@1 Terminal Block, use twisted wires to connect the ground terminal. Do not use a solid wire. Conductor length (stripping length) <Additional Information> If more than 2 A will flow on the wires, use plated wires or use ferrules. 8 NX-ECS@@@ Dimensions (Unit: mm) SSI Input Unit NX-ECS112/212 14.1 12.0 1.5 100 104.5 1.5 0.55 65.2 71 80.1 Related Manuals Man. No W524 Model NX-EC0@@@ NX-ECS@@@ NX-PG0@@@ Manual NX-series Position Interface Units User’s Manual Application Description Learning how to use NX-series The hardware, setup methods, and Position Interface functions of the NX-series Incremental Units Encoder Input Units, SSI Input Units, and Pulse Output Unit are described. 9 Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. 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