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179
Description JPDC-Fuse FU1T or FU2T (J1T connector) is blown or SW1T switched OFF.
Possible Cause
•
The specified switch is turned off and FuseDiag is enabled.
•
The specified fuse is blown.
•
The 125 V dc input is not connected.
Solution
•
If the switch is turned off (output is not used), disable the diagnostic by setting FuseDiag to Disable.
•
If the output is used, verify that the switch is turned on.
•
Replace the fuse.
•
Verify the 125 V dc input connections to the terminal board.
•
If the 125 V dc input is not used, this diagnostic alarm can be disabled by setting the InputDiagEnab parameter on the
associated input (DC_125VFdbkMag) to Disabled.
180
Description Input Src Mismatch on JPDC: AC src detected at input instead DC.
Possible Cause
•
The ac voltage has been detected at the 125 V dc input.
Solution
•
Verify the 125 V dc input connections. Use a DVM to verify the dc voltage on the input connections.
•
Verify that the positive and negative inputs to the 125 V dc bus are connected to the proper terminals. Refer to the JPDC
help documentation.
•
If the 125 V dc input is not used, this diagnostic alarm can be disabled by setting the InputDiagEnab parameter on the
associated input (DC_125VFdbkMag) to Disabled.
PDM Power Distribution Modules
Public Information
GEH-6855_Vol_II System Guide 349
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