Liebert 610 manual Start-Up Procedure

Operation

STEP 5 (Start-Up Procedure)

When the Module DC Bus voltage is at 100%, you can manually close the module battery disconnect (MBD) circuit breaker (external to the UPS).

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

NOTE

The battery charge current may increase quickly, but then should slowly decrease. 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, lead-acid batteries. Refer to the battery manufacturer’s manual, available on the manufacturer’s Web site, for specific information about equalize charging.

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 4 for an explanation of any remaining alarm messages (except Load on Bypass, which should still be displayed). Call Liebert Global Services if you cannot clear the remaining alarm messages.

If no alarm messages are displayed besides Load on Bypass, the UPS module is now ready to provide power to the critical bus.

Refer to 3.4.2 - Load Transfer Procedures to retransfer the load from the bypass line to the UPS module.

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