96 Rockwell Automation Publication 750-PM101B-EN-P - April 2022
Chapter 4 Troubleshooting
Table 3 - DC Precharge 7-Segment Display Fault and Alarm Codes
Display Code Display State Condition Code Condition Name
0
Flashing 12001 Image Watchdog Fault
Steady 12070 Board Over Temperature Alarm
1
Flashing 12002 Constants Message Invalid
Steady 12071 Board Over Temperature Fault
2
Flashing 12003 Constants Checksum
Steady 12072 Board Under Temperature Alarm
3 Steady 12073 Board Under Temperature Fault
4 Flashing 12004 Nonvolatile Data Checksum Fault
5 Flashing 12005 Power Supply Undervoltage
6
Flashing 12006 Precharge Fault
Steady 12108 240V AC Low
7
Flashing 12007 MCS Failed to Close or Wiring Bay Overtemp
Steady 12109 240V AC Loss
8 Flashing 12008 MCS Shunt Trip
9 Flashing 12009 MCS Aux Mismatch or Wiring Bay Overtemp
10
Flashing 12010 240V AC Loss Fault
Steady 12110 Fused Disconnect Open (MCS Open)
11 Flashing 12011 240V AC Over Voltage
12 Flashing 12012 Fused Disconnect Open (MCS closed)
15 Flashing 12050 Bus Fuse Harness
16 Flashing 12051 Bus Positive Fuse Blown
17 Flashing 12052 Bus Negative Fuse Blown
32 Steady 12053 Molded Case Switch Life Threshold Exceeded
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