Installation Instructions MicroLogix 1762-OW8 Relay Output Module Table of Contents Topic Page Additional Resources 2 Description 3 Overview 4 Mounting 5 System Assembly 7 Field Wiring Connections 8 I/O Memory Mapping 10 Specifications 11 North American Hazardous Location Approval 14 Publication 1762-IN003B-EN-P - June 2013
MicroLogix 1762-OW8 Relay Output Module Additional Resources Publication Description MicroLogix™ 1200 Programmable Controllers User Manual, publication 1762-UM001. Information on installing, wiring, and operating a MicroLogix 1200 Programmable Controller. MicroLogix 1200 Programmable Controllers Installation Installation guide for the MicroLogix 1200 Instructions, publication 1762-IN006. Programmable Controller.
MicroLogix 1762-OW8 Relay Output Module 3 Description 9 1a 7 3 6 5 1b 4 2 1a 6 2 1b 8 Item Description Item Description 1a upper panel mounting tab 5 bus connector cover 1b lower panel mounting tab 6 flat ribbon cable with bus connector (female pins) 2 I/O diagnostic LEDs 7 terminal block 3 module door with terminal identification label 8 DIN rail latch 4 bus connector with male pins pull loop 9 Publication 1762-IN003B-EN-P - June 2013
MicroLogix 1762-OW8 Relay Output Module Overview 1762 I/O is suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry environments (Pollution degree 2(1)) and to circuits not exceeding Over Voltage Category II(2) (IEC 60664-1).(3) Prevent Electrostatic Discharge ATTENTION ! Electrostatic discharge can damage integrated circuits or semiconductors if you touch bus connector pins.
MicroLogix 1762-OW8 Relay Output Module 5 Mounting ATTENTION ! Do not remove protective debris strip until after the module and all other equipment near the module is mounted and wiring is complete. Once wiring is complete and the module is free of debris, carefully remove protective debris strip. Failure to remove strip before operating can cause overheating.
MicroLogix 1762-OW8 Relay Output Module Use DIN rail end anchors (Allen-Bradley part number 1492-EA35 or 1492-EAH35) for vibration or shock environments. End Anchor End Anchor TIP For environments with greater vibration and shock concerns, use the panel mounting method described below, instead of DIN rail mounting. Panel Mounting Use the dimensional template shown below to mount the module. The preferred mounting method is to use two M4 or #8 panhead screws per module. M3.
MicroLogix 1762-OW8 Relay Output Module 7 System Assembly The expansion I/O module is attached to the controller or another I/O module by means of a flat ribbon cable after mounting as shown below. TIP ATTENTION ! Use the pull loop on the connector to disconnect modules. Do not pull on the ribbon cable. EXPLOSION HAZARD • In Class I, Division 2 applications, the bus connector must be fully seated and the bus connector cover must be snapped in place.
MicroLogix 1762-OW8 Relay Output Module Field Wiring Connections Grounding the Module This product is intended to be mounted to a well-grounded mounting surface such as a metal panel. Additional grounding connections from the module’s mounting tabs or DIN rail (if used) are not required unless the mounting surface cannot be grounded. Refer to Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1, for additional information.
MicroLogix 1762-OW8 Relay Output Module 9 Note: Finger-safe cover not shown. Wiring the Finger-Safe Terminal Block When wiring the terminal block, keep the finger-safe cover in place. 1. Route the wire under the terminal pressure plate. You can use the stripped end of the wire or a spade lug. The terminals will accept a 6.35 mm (0.25 in.) spade lug. 2. Tighten the terminal screw making sure the pressure plate secures the wire. Recommended torque when tightening terminal screws is 0.904 Nm (8 lb-in).
MicroLogix 1762-OW8 Relay Output Module I/O Memory Mapping Output Data File Word For each output module, the output data file contains the controller-directed state of the discrete output points. Bit positions 0…7 correspond to output terminals 0…7. Bit Position 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 0 w w w w w w w w w = write only, 0 = always at a 0 or OFF state Addressing The addressing scheme for 1762 Expansion I/O is shown below.
MicroLogix 1762-OW8 Relay Output Module 11 Specifications General Specifications Specification Value Dimensions, H x W x D 90 x 40 x 87 mm height including mounting tabs is 110 mm 3.543 x 1.5753 x 3.425 in. height including mounting tabs is 4.33 in. Approximate Shipping Weight (with carton) 228 g (0.50 lbs.
MicroLogix 1762-OW8 Relay Output Module Certifications Certification (when product is Value marked)(1) c-UL-us UL Listed Industrial Control Equipment, certified for US and Canada. UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations, certified for U.S and Canada. See UL File E334470. CE European Union 2004/108/EC EMC Directive, compliant with: EN 61326-1; Meas./Control/Lab.
MicroLogix 1762-OW8 Relay Output Module 13 Output Specifications Specification Value Power supply distance rating 6 Isolated groups Group 1: Outputs 0…3 Group 2: Outputs 4…7 Output group to backplane isolation Verified by one of the following dielectric tests: 1836V AC for 1 sec. or 2596V DC for 1 sec. 265V AC working voltage (IEC Class 2 reinforced insulation) Output group to output group isolation Verified by one of the following dielectric tests: 1836V AC for 1 sec. or 2596V DC for 1 sec.
MicroLogix 1762-OW8 Relay Output Module North American Hazardous Location Approval This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. The following WARNING statement applies to use in hazardous locations.
MicroLogix 1762-OW8 Relay Output Module 15 Notes: Publication 1762-IN003B-EN-P - June 2013
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