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12
You can configure the charger to do the following:
•
Set the charger input power (see Figure 3 on page 5).
•
Delay AC loss reporting (for Central Station applications); and
•
Disable charger ground fault detection.
Figure 11 shows how to configure the charger for delaying the loss of AC reporting and for
disabling ground fault detection:
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delay the reporting of an AC loss condition to a central station. This delays activation of the
trouble bus and Form-C trouble contacts when AC fails. You can configure the charger for
an 8-hour or a 16-hour delay as follows:
•
8-hour delay – Cut and remove jumper JP8 on the charger (Figure 11).
•
16-hour delay – Cut jumper JP8; then, cut and remove resistor R100 (Figure 11).
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remove resistor R104 (Figure 11). Figure 12 contains a simplified block diagram that
shows ground fault detection disabled on a charger connected to multiple power supplies:
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Figure 12 Disabling Ground Fault Detection
Figure 11 Configuring the Charger
If using a Digital Alarm Communicator (DACT), you must
To disable local (charger) earth fault detection, cut and
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ADT-CHG-120 Instruction 05/01/98 PN 50938:A
Configuring the Charger
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