Liebert Series 600T User Manual

Page 102

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96

Operation

The Battery block in the Monitor/Mimic Display indicates the battery voltage and charge current.

Use the Monitor/Mimic Display screen to determine the condition of the UPS module. Press the Alarm Reset
pad to clear the Alarm Messages. Refer to Table 1 for an explanation of any remaining alarm messages. Call
Liebert Global Services if you cannot clear the remaining alarm messages.

If no alarm messages are displayed, the UPS module is now ready to provide filtered, uninterruptible power to
the critical bus. Manually close the module output circuit breaker (CB2, Figure 8) to place this UPS module on-
line.

When all required UPS modules are on-line, return to the SCC to complete your UPS system start-up.

NOTE
The battery charge current may increase quickly, but then should slowly decrease. A
fully charged battery will require no more than 31 Amps of charge current. If you are
recovering from a battery shutdown or an input power failure, the UPS rectifier will
be recharging the battery. Recharge current can be more than 100 Amps. The
maximum allowable recharge current for your unit will depend on the kVA rating and
your factory-set battery recharge current limit.

!

CAUTION

Do not use equalize charging with valve-regulated, sealed-cell batteries. Refer to
the battery manufacturer’s manual for specific information about equalize
charging.

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