3-12
1
2
TB1
TRBL AUDIO
24VDC
GRND
+
_
Figure 3-15
Trouble Audible Connection
Ground Fault Detection Wiring
On the Mother Board, connect Earth Ground Connection (E1) as shown on Figure 3-1 on Page 3-2 to
the Chassis Ground (Figure 3-17 on Page 3-15). Make sure that chassis ground is at earth ground or
to the common ground of the FACP. Conduct the sensitivity adjustment as described in Section 3-7
Ground Fault Detection Sensitivity Adjustment.
POWER CONNECTION REQUIREMENTS
The Single Circuit SAFEPATH
®
Panel contains a 24VDC, 6 Amp Power Supply and a 40AH Battery
Charger for the battery backup. Connections for the input power and batteries are shown in Figure 3-16
on Page 3-14. Calculate proper backup battery requirements using Section 3-8.
WARNING: IT IS IMPORTANT THAT THE WIRING USED FOR INPUT VOLTAGE WIRING IS
LARGE ENOUGH TO CARRY THE MAXIMUM CURRENT REQUIRED BY THE
SAFEPATH
PANEL WITHOUT EXCESSIVE VOLTAGE DROP. IF VOLTAGE
DROPS FROM AC POWER LINE LOADING AND WIRING RESISTANCE IS NOT
WITHIN THE SPECIFIED OPERATING VOLTAGE RANGE, THE SAFEPATH
®
PANEL WILL NOT FUNCTION PROPERLY.
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