Cold-Starting The Ups Using Batteries - Huawei UPS5000-E FM Series User Manual

UPS5000-E-(30 kVA-120 kVA)-FM
User Manual
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Step 2 After shutting down the inverter, open the output switch, or external output power
distribution switch in the UPS output PDC.
Step 3 Open the battery string switch. If there are multiple battery strings, open the
general switch between battery strings and the UPS and then the switch for each
battery string.
Step 4 Open the external input power distribution switch and the UPS internal switch,
perform the following operations:
1.
2.
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5.3 Cold-Starting the UPS Using Batteries

Lead-Acid Battery Cold Start
1.
2.
Issue 02 (2020-11-10)
Figure 5-6 Abnormal bypass
NO TE
If you need to shut down the inverter and transfer the UPS to bypass mode, check that
the UPS has not generated an alarm and perform "Step 1".
On the WebUI
Choose Monitoring > UPS System > Running Control, and click Inv. OFF.
Open the internal mains input switch, bypass input switch, output switch.
Open the upstream UPS mains and bypass input switches.
NO TE
● If the inverter needs to shut down to transfer the UPS to bypass mode, check that the
UPS has not generated an alarm and perform
● If you need to shut down the UPS, perform all of the preceding steps.
Ensure that batteries have been connected properly. Use a multimeter to
check that the absolute voltages of positive and negative battery strings are
greater than a certain value (single battery voltage x number of batteries in
the battery string).
Open the upstream mains input and bypass input switches, and close the
battery circuit breaker. If there are multiple battery strings, close the circuit
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Step 1.
5 Operations
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