CertaUPS C500, Руководство по установке

Страница: 42 / 54

34
Replacing the EBM (External battery module)
The EBM is heavy and requires a minimum of 2 people to lift in to racking.
For the Tower module, turn the MBS to bypass and switch off the input and then
replace the EBM(s).
For the rotation module, if a PDU is connected to the UPS, turn the MBS to bypass
and switch off the input, it is then safe to replace the EBM(s). If a PDU is not
connected to the UPS, turn off the UPS and then replace the EBM.
To replace the EBM(s):
1. Unplug the EBM power cable and battery detection cable from the UPS.
If additional EBM(s) are installed, unplug the EBM power cable from each EBM.
2. Replace the EBM(s). See "Recycling the used equipment" for proper disposal.
A small amount of arcing may occur when connecting an EBM to the UPS. This is
normal and will not cause shock. Insert the EBM cable into the UPS battery
connector quickly and firmly.
3. Plug the EBM cable(s) into the battery connector(s).
4. Verify that the EBM connections are tight and that adequate bend radius and
strain relief exist for each cable.
5. Connect the battery detection cable(s) to the connector of the UPS and of the
EBM(s).
To test new batteries:
1. Charge the batteries for 48 hours.
2. Press
on the menu of “Control”.
3. Select Control
4. Select Single battery test
The UPS starts a battery test if
1. The batteries are fully charged
2. The UPS is in Normal mode with no active alarms
3. Bypass voltage is acceptable.
During the battery test, the UPS transfers to Battery mode and discharges the
batteries for 10 seconds. The front panel displays and the percentage of
the test completed.