GE Mark VIeS - JPDF DC 125 V Ground Magnitude (JD1;JZ2;JZ3 Connector) out of Range; JPDF Fuse FU1 R or FU2 R (J1 R Connector) Is Blown or SW1 R Switched off

113, 115
Description JPDF-[ ] DC 125V Ground magnitude (JD1/JZ2/JZ3 connector) out of range
Possible Cause
• The 125 V ground feedback magnitude is greater than Gnd_Mag_Trig_Volt.
• Gnd_Mag_Trig_Volt is set too low.
• One side of the dc 125 V source voltage is grounded.
Solution
• Verify that Gnd_Mag_Trig_Volt is set correctly.
• Check the connections to the specified connector.
• Verify the grounding of the dc input signals. Refer to the JPDF help documentation.
• If DC 125V input is not used, this diagnostic alarm can be disabled by setting the InputDiagEnab parameter on the
associated input (DC_125VFdbkMag) to Disabled.
116, 125
Description JPDF-[ ] fuse FU1R or FU2R (J1R connector) is blown or SW1R switched OFF
Possible Cause
• The SW1R is turned off and FuseDiag is enabled.
• The FU1R or FU2R fuse is blown.
• The 125V 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.
PDM Power Distribution Modules GEH-6855_Vol_II System Guide 333
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