Shutting Down The Ups - Huawei UPS5000-E Series Quick Manual

Powering On Loads
8.3
1. Check that the UPS has transferred to normal mode and that the Bypass mode alarm has
disappeared. Use a multimeter to check that the valid three-phase output voltage is 220 V AC,
230 V AC, or 240 V AC and the frequency is 50 Hz or 60 Hz.
2. Check that the settings of battery capacity and number of cells on the Basic Param. screen are
consistent with the actual configuration. Check that the battery strings are connected properly.
(Use a multimeter to check the voltages of the positive and negative battery strings and verify
that the sum of the absolute voltages of the positive and negative battery strings is greater than
1.6 x Number of cells.)
3. Close the battery string circuit breaker. (If there are multiple battery strings, close the circuit
breaker for each battery string and then the general circuit breaker between battery strings and
the UPS.) The No battery alarm disappears.
4. Turn on the UPS output circuit breaker QF3.
5. Close the UPS downstream output switch to supply power to the loads.
(Optional) Setting Parameters for the BCB Box
8.4
1. (Optional) If a BCB box is configured, choose Settings > Dry Contacts, set MUE05A
connection to Enable, and then set BCB connection [OL] and Battery breaker [STA] to
Enable.
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Shutting Down the UPS

After you shut down the inverter, the UPS transfers to bypass mode if the bypass is normal;
the UPS supplies no power if the bypass is abnormal. Before shutting down the UPS, ensure
that all loads have been shut down.
Shutting Down the Inverter to Transfer the UPS to Bypass Mode
9.1
1. On the main menu of the LCD, choose Common Functions and tap Inv. OFF.
2. In the displayed dialog box, tap Yes to shut down the inverter.
Powering Off a Single UPS
9.2
Turn off the downstream output switch and battery string switch.
Turn off the UPS input switch, and output switch.
Turn off the MCCB (skip this step in the case of ATS input).
Turn off the upstream input switch.
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