Access Power Solutions Installation Guide (APS3-400 Series)
System Alarms
Equipment Required:
dc load bank
•
dc power supply
•
Test
Test procedure
•
For all alarms check the following where applicable:
General notes about
•
alarm testing
•
•
•
•
•
Reducing the alarm recognition time will reduce the alarm
testing time.
•
There may be more than 1 method to perform the
following alarm tests.
•
Increase the Low Float Threshold to just below the float
Low Float
voltage.
Note 1
•
Reduce the system voltage by heating the battery
temperature sensor
- or -
•
Disconnect the battery from the system.
•
Start a Battery Test.
•
The system voltage will fall.
•
Ensure alarm operates.
•
Test as for the Low Float test.
Low Load
Note that the Low Load Threshold is lower than the Low Float
threshold.
•
Ensure alarm operates.
•
Set the system Float Voltage above the High Float Threshold.
High Float
- or -
Note 1
•
Reduce the High Float Threshold and increase the system
voltage by starting an Equalize.
- or -
•
Reduce the High Float Threshold and increase the system
voltage by cooling the battery temperature sensor.
•
Ensure alarm operates.
•
Increase the system voltage.
High Load
•
Test as for the High Float test.
•
Ensure alarm operates.
•
Turn off a rectifier ac circuit breaker (if fitted).
Rectifier Fail
•
The rectifier will turn off.
•
Ensure alarm operates.
•
Turn off the ac circuit breakers to 2 rectifiers (if fitted).
Multiple rectifier fail
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The rectifiers will turn off.
•
Ensure alarm operates.
•
Remove a rectifier from the system.
Rectifier comms lost
92
SC200 or SC100 LED status.
SC200 or SC100 display indication.
DCTools/Web alarm indication
Remote alarm indication (PowerManagerII, SNMP
traps, and so on)
Digital outputs (relays).
Note the High Load Threshold is higher than the
High Float Threshold
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IPN 997-00012-52D
Adjustment
July 2010