Description
Key Technical Specifications
-
Model Number: 1C31233G04
-
Manufacturer: Emerson (formerly Westinghouse)
-
Function: 16-channel SOE digital input module – time-stamps state changes with 1 ms resolution
-
Input Channels: 16 isolated dry-contact or 48 VDC wet inputs (18-30 V range)
-
Time-Stamp Resolution: 1 ms (SOE logging)
-
Input Current: ≤10 mA per channel
-
Response Time: ≤1 ms rise/fall edge
-
Over-Voltage Protection: 60 VDC max, ±2 kV surge (IEC 61000-4-5)
-
Carrier Frequency: 30 kHz ±2 % (internal data clock)
-
Isolation: 2 kV channel-to-bus; 500 V channel-to-channel
-
Power Supply: 220 VAC ±10 % from Ovation back-plane
-
Power Consumption: 8 W typical, ≤2 W standby
-
Operating Temperature: –40 °C…+85 °C
-
Protection Degree: IP67 module rating, conformal-coated PCB
-
Safety / EMC: IEC 61508 SIL 2, CE, UL, RoHS
-
Dimensions / Weight: 121 × 52 × 165 mm, 0.32 kg
-
Status: Factory discontinued – new & tested spares available
WESTINGHOUSE 5X00062G01
Field Application & Problem Solved
In nuclear and fossil plants the biggest headache is catching the exact millisecond a turbine trip relay opens or a breaker auxiliary closes. The 1C31233G04 solves that by living in the Ovation rack: it time-stamps every edge with 1 ms accuracy, stores 4 000 events internally, and floods the SOE log over the 30 kHz carrier so the operator sees the sequence in real time. You’ll typically find one per protection panel on Frame-9 units—swap time is under two minutes with the unit on turning gear. Core value: it collapses 16 isolated SOE inputs, surge protection, and a millisecond clock into one 0.32 kg plug-in card you can hot-swap without losing a single event.
In nuclear and fossil plants the biggest headache is catching the exact millisecond a turbine trip relay opens or a breaker auxiliary closes. The 1C31233G04 solves that by living in the Ovation rack: it time-stamps every edge with 1 ms accuracy, stores 4 000 events internally, and floods the SOE log over the 30 kHz carrier so the operator sees the sequence in real time. You’ll typically find one per protection panel on Frame-9 units—swap time is under two minutes with the unit on turning gear. Core value: it collapses 16 isolated SOE inputs, surge protection, and a millisecond clock into one 0.32 kg plug-in card you can hot-swap without losing a single event.
Installation & Maintenance Pitfalls (Expert Tips)
Dry-Contact Mode Needs Wetting Voltage – Don’t Leave It Floating
If you land a dry contact without the 48 V wetting supply the input never pulls low and the SOE log stays empty. Jumper the module for 48 V wetting or land a wet contact—verify with a meter before you close the door.
If you land a dry contact without the 48 V wetting supply the input never pulls low and the SOE log stays empty. Jumper the module for 48 V wetting or land a wet contact—verify with a meter before you close the door.
1 ms Clock Drifts with Temperature – Re-Calibrate Every Major
After five summers at 70 °C the internal crystal drifts 50 ppm and the time-stamp slips 0.2 ms. Run the built-in cal routine in Ovation Control Studio or you’ll chase out-of-sequence events that aren’t real.
After five summers at 70 °C the internal crystal drifts 50 ppm and the time-stamp slips 0.2 ms. Run the built-in cal routine in Ovation Control Studio or you’ll chase out-of-sequence events that aren’t real.
Carrier Transformer Must Be Grounded – Or the 30 kHz Dies
The 30 kHz carrier rides on the module transformer. If you forget the PE bond the SNR drops 10 dB and the main rack sees “module not responding.” Torque the PE lug to 1 Nm and megger it after every lightning season.
The 30 kHz carrier rides on the module transformer. If you forget the PE bond the SNR drops 10 dB and the main rack sees “module not responding.” Torque the PE lug to 1 Nm and megger it after every lightning season.
Spare Lead-Time Is 6-8 Weeks – Keep One on the Shelf
Factory stock is gone; new & tested spares are available but not overnight. If you crack a layer or burn the carrier winding you’ll be down until the part arrives—keep one in stores or you’ll discover the weakness during the next grid event.
Factory stock is gone; new & tested spares are available but not overnight. If you crack a layer or burn the carrier winding you’ll be down until the part arrives—keep one in stores or you’ll discover the weakness during the next grid event.
WESTINGHOUSE 5X00062G01
Technical Deep Dive & Overview
Internally the module is a 16-channel SOE ASIC bolted to a 2 kV isolation barrier. Each input drives an opto-coupler that latches the exact millisecond of the edge; the 30 kHz carrier clocks the time-stamp into the Ovation back-plane. Lose the 220 VAC rail and the module stops logging; lose a single input and the CPU throws “SOE CH FLT” for that channel only. No firmware to reload—pure hardware—so you can hot-swap it: pull the old card, land the field wires exactly where they came from, snap the 96-pin connector in, and the DCS sees all 16 events again in under ten seconds.
Internally the module is a 16-channel SOE ASIC bolted to a 2 kV isolation barrier. Each input drives an opto-coupler that latches the exact millisecond of the edge; the 30 kHz carrier clocks the time-stamp into the Ovation back-plane. Lose the 220 VAC rail and the module stops logging; lose a single input and the CPU throws “SOE CH FLT” for that channel only. No firmware to reload—pure hardware—so you can hot-swap it: pull the old card, land the field wires exactly where they came from, snap the 96-pin connector in, and the DCS sees all 16 events again in under ten seconds.
