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Magnum XS 450 Power System –48 VDC User’s Manual Page 30
10. Check the torque of all battery inter- cell connector in accordance with the battery
manufacturer’s specifications.
4.2 Commissioning
Initial Set-up
1. Remove all rectifiers.
2. Disconnect battery by removing a link in each string or opening the battery
disconnects.
3. Check that battery voltage does not appear on the system bus.
4. Disconnect all loads.
AC Power Up
WARNING
: The dc power plant is supplied from a nominal high voltage ac
voltage source. Keep the ac input enclosure cover in place when the
system is operational or energized
1. Verify that all of the circuit breaker positions are labeled to the corresponding rectifier
correctly.
2. Insert all rectifiers.
3. Turn all rectifier circuit breakers on.
4. Each rectifier should have green ON LED illuminated.
NOTE: When ac power is initially applied, there is a 60-second period during which no
alarms are reported.
DC Power Up:
1. Verify with a voltmeter that the dc voltage is within 0.1 Vdc of the System Voltage
2. Adjust battery float voltage to negative (-)49 Vdc.
3. Verify System Low Voltage Alarm.
4. Adjust battery float voltage to negative (-)57 Vdc.
5. Verify System High Voltage Alarm.
6. Restore the battery float voltage to negative (-) 54.00 Vdc or desired voltage.
Rectifier Test:
1. To verify that all rectifiers are reporting correctly to the controller, navigate through the
menu and verify that the status for every rectifier in the system is correct.
2. Remove any rectifier and verify that you get a Minor Relay Output for rectifier 1 of n
failure.
3. Remove a second rectifier and verify that you get a Major Relay Output for rectifier 2
of n failure.
Battery Power Up