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Technical specifications for 1C31142G01
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Manufacturer:Emerson
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Product Category:DCS Systems
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Spare Part Number:1C31142G01
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Estimated shipping dimensions:12.1x5.2x16.6cm
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Weight:0.32 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Product class:Contact input electronics module
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Channel count:16
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Field-input type:Current-sourcing contact input
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Wetting supply:48 VDC on card
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Auxiliary supply range:42-55 VDC
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Input arrangement:Single-ended with common return
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Propagation delay:7 ms maximum
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Contact-bounce response:Rejects less than 3 ms; accepts greater than 7 ms
Information
Overview
Manuals
Common Applications
Product Precautions
WESTINGHOUSE 1C31142G01 is intended for contact-state acquisition where all sixteen channels share the documented single-ended return arrangement. Its wetting supply and debounce timing must be verified with the field wiring before return to service.
- Sixteen contact-input channels
- 48 VDC on-card wetting supply
- Single-ended common-return architecture
- 1C31110G03 personality-module pairing
The installed signal path is Dry field contact → 1C31110G03 personality module → 1C31142G01 electronics → Ovation controller digital state. Record the as-left channel assignment and verify the affected path before release.
Important Notice: Isolate the on-card wetting supply and external circuits before handling WESTINGHOUSE 1C31142G01.
WESTINGHOUSE 1C31142G01 Manuals & Downloads
WESTINGHOUSE 1C31142G01 Official Technical Reference Excerpt (PDF)WESTINGHOUSE 1C31142G01 Installation & Commissioning Guide (PDF)
The Technical Reference presents the applicable model data and interface details; the Installation & Commissioning Guide organizes field preparation, controlled replacement and acceptance checks for WESTINGHOUSE 1C31142G01.
Interlock monitoring
Reads dry-contact permissive and interlock states in an Ovation system.
Alarm contact acquisition
Captures sixteen discrete alarm or equipment-status contacts.
Legacy input replacement
Restores the existing contact-input slot while retaining field wetting and common-return wiring.
Bounce-sensitive troubleshooting
Supports timing checks where contact bounce or marginal field voltage affects state recognition.
Apply these controls to WESTINGHOUSE 1C31142G01 before isolation, removal, reconnection, energization and release.
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Isolate the on-card wetting supply and external circuits before handling WESTINGHOUSE 1C31142G01.
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Verify the G01 electronics module and 1C31110G03 personality module pairing before replacement.
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Record all sixteen channel assignments and the common-return wiring before disconnecting field conductors.
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Confirm that field devices are dry contacts suitable for the module's 48 VDC current-limited wetting circuit.
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Do not parallel an external source onto the on-card wetting supply without an approved engineering design.
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Inspect the base, personality-module connectors and terminal labeling before inserting the replacement.
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Test both open and closed states for each used channel and observe the documented debounce response.
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Prove associated alarms, interlocks and safe-state logic before releasing the input module to operation.
Technical notes
WESTINGHOUSE 1C31142G01 is a 16-channel Ovation contact input electronics module using a 48 VDC on-card wetting supply for single-ended field contacts.
FAQ View All FAQ
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How many inputs does WESTINGHOUSE 1C31142G01 provide?It provides sixteen contact-input channels.
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What wetting voltage is used by WESTINGHOUSE 1C31142G01?The module uses an on-card 48 VDC wetting supply.
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Which personality module pairs with WESTINGHOUSE 1C31142G01?The documented pairing is 1C31110G03.
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What auxiliary range applies to WESTINGHOUSE 1C31142G01?The documented on-card auxiliary supply operates over 42 to 55 VDC.
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How quickly does WESTINGHOUSE 1C31142G01 propagate an input state?The specified propagation delay is 7 ms maximum.
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How does WESTINGHOUSE 1C31142G01 treat contact bounce?Pulses shorter than 3 ms are rejected and changes longer than 7 ms are accepted.
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What wiring feature must be preserved on WESTINGHOUSE 1C31142G01?All sixteen single-ended inputs use the documented common-return arrangement, which must be restored exactly.
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Which field test completes WESTINGHOUSE 1C31142G01 commissioning?Operate each used contact and verify terminal voltage, controller state, alarm or interlock action, and the configured safe response.
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