Operating Instructions
162 MS-9050UD PN 52413:C 01/23/08
4.22.3 Power
Pressing 3 while viewing Read Status Screen #1 will cause the following screens to be displayed:
A real-time display of the control panel voltages can be used to determine if a problem exists in the
system.
The following table lists the circuit being measured, possible conditions and their respective
voltage ranges:
Circuit Condition Voltage Range
Battery
Normal Battery (nominal) 27.05 to 28.15 VDC
Low Battery 17.7 to 20.4 VDC
No Battery 0 to 17.6 VDC
ANN-BUS Power Normal 21.25 to 27.50 VDC
Charger Normal 21.87 to 29.84 VDC
System Power Nominal 27.60 VDC
POWER
BATTERY 27.21V
ANN-BUS PWR 27.75V
CHARGER 27.75V
Power Screen #1
POWER
SYSTEM PWR 27.60V
Power Screen #2
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