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3.4 Operation of the Outdoor Battery Cabinet System

3.4.1 Outdoor battery cabinet system power on

1. Connect INVERTER external AC 480V power supply.

2. Connect external auxiliary power supply of AC277 V. And the transformer output is AC 220V.

3. Turn on the air-conditioning circuit breaker and air-conditioning starts working after self-check is

completed.

4. Turn on the UPS circuit breaker and ensure that there is no alarm when UPS starts up.

5. Turn on the INVERTER inlet circuit breaker and the INVERTER enters self-check mode.

6. Turn on the battery system, following the steps in section 3.3.3

7. INVERTER communicates with BMS. BMS relay closes and outputs direct current to INVERTER. And the

whole system is normal without failure.

8. Turn on the switch of the INVERTER load side.

3.4.2 Black start

1. For single battery string, manually long press and hold the BMS star button (>10 seconds). BMS closes the

relay according to the logic and performs black start.

2. For multi battery string, turn on the BMS to complete self-check, then switch on the MBMS. And

communication is normal, then the BMS closes the relay, outputting DC power to the INVERTER.

3.4.3 Outdoor battery cabinet system power off

1. Ensure that the INVERTER is already in the shutdown state and there is no load output.

2. Disconnect the INVERTER load switch.

3. Disconnect the switch of MBMS or BMS.

4. Disconnect the INVERTER AC side switch.

5. Disconnect the auxiliary power switch.

3.4.4 Power off in emergencies

1. Tap the emergency stop button to stop the inverter.

2. Tap the emergency stop button to trigger the shunt trip and turn off the main circuit breaker.

Pylontech M1C-UL9540 User Manual

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