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Earth Fault Resistance
10.2.4 SLC Device Locator
SLC device locator can be used to locate a device on a SLC loop.
Follow these steps to locate a particular SLC device:
1.
Select 2 (Point Functions) from the Main Menu.
2.
Select 4 (SLC Dev Locator).
A message similar to the message shown in Figure 10.1 displays.
3.
Press the <Up> or <Down> arrow to toggle between NO to YES then press <Enter>. If you select <No>, you will exit back to the
Point Function Menu. If you select <Yes>, the system will cease normal operation leaving the premise unprotected.
4.
Select the SLC loop.
5.
Enter the SLC address of the device you want to locate. The LED on the selected device will start flashing.
6.
Press the <Left> arrow to exit the SLC Device Locator function.
NOTE: After you exit, the system resumes normal operation.
10.2.5 SLC Multi Locator
This feature functions in the same was as the SLC Device Locator, except you can locate up to 8 devices on a single search. Follow these
instructions to locate the multiple SLC devices:
1.
Select 2 (Point Functions) from the Main Menu.
2.
Select 5 (SLC Multi Locator).
A message similar to the one shown in Figure 10.1 will display.
3.
Press the <Up> or <Down> arrow to toggle between NO to
YES then press <Enter>.
If you select <No>, you will exit back to the Point Function
Menu. If you select <Yes>, the system will cease normal
operation leaving the premise unprotected.
4.
Select the SLC loop.
5.
Enter up to 8 SLC addresses for the devices you want to locate.
6.
The LEDs on the selected devices will start flashing.
7.
Press the <Left> arrow key to exit the SLC Multi-Locator function.
NOTE: Once you exit the system will resume normal operation.
10.2.6 I/O Point Control
This feature allows you to toggle any output On or Off and trip any input device. This function can be useful to test a point's output map-
ping. Follow these steps to control an I/O point:
1.
Select 2 (Point Functions) from the Main Menu.
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.
10.3 Earth Fault Resistance
Table 10.2 lists the Earth Fault resistance detection for each applicable terminal on the FACP.
(values in kohms)
NAC 1 -
NAC 1 +
NAC 2 -
NAC 2 +
SBUS -
SBUS +
SBUS A
SBUS B
SLC IN -
SLC IN +
SLC OUT -
SLC OUT +
GWF-7075 Addressable Fire Alarm Control Panel Manual — P/N LS10147-002GF-E:E 06/11/2019
TERMINAL
high trip
0
0
0
0
0
Table 10.2 : Earth Faults in Ohms
Figure 10.1 Shut Down Warning
Figure 10.2 Shut Down Warning
LOW BIASED
high restore
0
0
0
0
0
0
0
0
0
0
0
0
Testing and Troubleshooting
HIGH BIASED
low trip
low restore
0
0
0
0
0
0
0
81
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