Battery Balance Manager:
This accessory, available as a separate assembly, is designed to maintain identical
terminal voltage of each 6-cell battery in the string within 130 millivolts (0.130 volt) as
measured across the entire battery string. Balancing battery voltages will help
maintain battery life to maximum attainable time and helps insure longest available
reserve time. The BBM Plus Battery Balance Manager is available for either 36-volt
applications (part no. 018-008-20) or 48-volt applications (part no. 018-009-20).
Section 9: Maintenance and Adjustments
Preventive Maintenance:
For optimum performance from your power supply, the following maintenance items
should be performed at least every six (6) months, especially in areas where the power
supply is subjected to extreme heat or cold.
o Visually inspect the enclosure for signs of damage
o Inspect the external status lamps for proper operation
o Check the status LEDs on the front of the power supply for any alarm
indications
o Check all electrical connections
o Check the batteries for signs of swelling, split cases or other damage
o Check and record individual battery voltages
o Check and clean battery terminals; bolts or wingnuts must be tight
o Measure and record AC output voltage
o Measure and record AC output current
o Measure and record DC battery voltage
o Press the TEST button on the front panel to test the batteries. Press TEST
again to cancel
o Record all maintenance performed or parts replaced
o Verify the power supply is in its normal mode of operation as indicated by the
LED display. All front panel LEDs, other than the TEST indicator, should be
illuminated green
o Close and lock the enclosure
Output Voltage Reconfiguration:
The output voltage configuration block is located on the voltage adjustment panel,
accessible after removal of the left-front cover plate. Typical connections for the
voltage adjustment panel are shown in Fig. 9-1. Voltage configuration should normally
be accomplished during initial installation of the power supply; however, if
reconfiguration becomes necessary after the power supply is placed in operation, do
so according to the following procedure.
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