BATTERY CHARGER USER’S MANUAL PART- 2: THEORY OF OPERATION
MCEnPC23-REV.2.4 Page 53
iv. Negative Ground Fault Alarm
If resistance between negative to chassis decreases below a preset value during a preset time, this alarm will be
activated. Leakage resistance is given by the following formula:
Leak
Leak
I
R
2
1
Example:
mAI
Leak
5
,
VR
leak
/100
We can enable or disable and adjust Negative Ground Fault alarm as shown on the procedure below:
Alarms?
Ok
Next Pr
Exit
Adjust? Level1
Ok
Next Pr
Exit
ON5.0mA GNDF
Set
ExitNext
Pr
ON
OFF
Next
Exit
:getyou Next till Press
Next
Exit
-
ON GNDF
Fault Ground
10.5A 136.2V
:getyou Next till Press
ON5.0mA GNDF
Figure 53 : Negative Ground Fault Alarm adjustments procedure.
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