IFP-75/IFP-75HV Installation/Operation Manual — P/N LS10147-001SK-E:D 06/25/2021 129
Earth Fault Resistance Testing and Troubleshooting
12.3.3 I/O Point Control
This feature allows you to toggle any Output on or off and trip any Input device. This option can be useful to test a Point’s Output Mapping.
Follow these steps to control a I/O Point:
1. From the Main Menu, select 2 (Point Functions).
2. Select 6 (I/O Point Control).
3. Select the Module the point is on.
4. Enter the Point Number, or press the up or down arrow to select the point you want to test, then press ENTER.
5. Press ENTER to generate an alarm for an Input Point or activate an Output Point.
6. To exit, press the left arrow key.
12.4 Earth Fault Resistance
Table 12.2 lists the Earth Fault Resistance Detection for each applicable terminal on the FACP.
NOTE: Once you exit the system will resume normal operation.
TERMINAL LOW BIASED HIGH BIASED
(values in kohms) high trip high restore low trip low restore
NAC 1 - 0 0
NAC 1 + 0 0
NAC 2 - 0 0
NAC 2 + 0 0
SBUS - 0 0
SBUS + 0 0
SBUS A 0 0
SBUS B 0 0
SLC IN - 0 0
SLC IN + 0 0
SLC OUT - 0 0
SLC OUT + 0 0
Table 12.2 Earth Fault Resistance
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