Testing The Unit - Alpha Technologies CFR 7.5K Operator's Manual

3 Operation

3.3 Testing the Unit

The self test confirms the unit can switch from line power to backup battery power and back
without interrupting power to the loads. It takes about one minute to run.
Before starting:
• For 15K units, the external battery pack must be connected.
• The Battery circuit breaker must be on.
• The control panel's Line Present LED must be on.
Procedure:
1 Press the Manual Start button down for 5
seconds.
During the test, the Test, Line Present and
Line Failure LEDs are on for about one
minute.
If a fault is found, the unit defaults to Line
2
Present operation without interrupting the
output. The Service LED turns on. Do
troubleshooting (Sections 3.4, 5.2).
TIP: The unit cannot provide backup battery
power when the Service LED is on.
Self Test Finished
32
LINE PRESENT
LINE FAILURE
SERVICE
ALARM
OFF
MANUAL
START
OUTPUT LOAD
LOW BATTERY
WARNING
OVERLOAD
LOW BATTERY
100%
SHUTDOWN
75%
50%
TEST
25%