5.1.1.3.3 Performing EPO
Turn on the EPO switches (provided by the customer). The UPSs enter the EPO
state. That is, the UPSs shut down the inverters, and do not transfer to the bypass
mode.
Figure 5-7 EPO cable connection in a parallel system
5.1.2 Connecting the Lithium Battery Supply
Procedure
Step 1 Switch on the lithium battery circuit breakers.
Step 2 Check whether the lithium batteries communicate properly. If the running
indicator on a lithium battery is steady on, the lithium battery communicates
properly with the SMU. If the indicator blinks fast (4 Hz), the communication is
interrupted. In this case, check that the communications cable is properly
connected.
Step 3 Observe the lithium batteries for 15 minutes. The batteries are running properly if
the alarm indicators are off.
Step 4 Hold down the MANUAL ON/OFF buttons on the lithium battery panels for more
than 5s and less than 15s to activate the lithium batteries.
----End
5.2 Power-On Commissioning for the Cooling System
5.2.1 Powering on Devices
FusionModule800 Smart Small Data Center
User Manual
5 Power-On Commissioning
Issue 01 (2021-02-05)
Copyright © Huawei Technologies Co., Ltd.
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