Huawei SmartACU2000D Quick Manual page 28

•
To highlight the key points, only the parameters that need to be set are described.
• If a smart array controller with two PID modules is used in the scenario with a dual-split
transformer and the solar inverter configurations are the same, you are advised to set the
operating parameters of both PID modules to the same.
10
Closing the Cabinet Door
1. Retract the support bar.
• If a screw used for securing the cabinet door is lost, use the security torx screw in the fitting
bag.
•
If a floating nut used for securing the cabinet door is lost, use the idle floating nut on the
cabinet.
11
FAQ
11.1
How Do I Power Off the System Before Maintenance?
Put on insulation gloves before powering off the system.
1. Turn off the single-phase power switch that controls the power supply from the remote
transformer station to the smart array controller.
2. Turn off the three-phase power switch that controls the power supply from the remote
transformer station to the smart array controller.
• If the smart array controller houses one PID module, turn off the corresponding three-
phase power switch.
•
If the smart array controller houses two PID modules, turn off the corresponding three-
phase power switches.
4. Turn off the QF03 single-phase input switch in the smart array controller.
5. Turn off the three-phase input switch on the smart array controller.
• If the smart array controller houses one PID module, turn off the FU01 three-phase input
switch.
• If the smart array controller houses two PID modules, turn off the FU01 and FU02 three-
phase input switches.
6. Turn off the PID switch in the smart array controller.
• If the smart array controller houses one PID module, turn off the QF01 PID switch.
•
If the smart array controller houses two PID modules, turn off the QF01 and QF02 PID
switches.
2. Close the main cabinet door and tighten
the screws.
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