Inverter device inspection and maintenance work steps

Create Date: 2024-8-30 12:03:23|Source: Hope Sunland

1. Preparation process:

Abort the device and admit that the motor is completely aborted.

Press the stop button on the operator panel to stop the operation.

Disconnect the external mains power supply (low-voltage cabinet drawer). Adequate security treatment should be carried out to ensure that the disconnection is indeed carried out and that no misuse occurs.

Look at the power indicator on the control and inverter (soft starter) panels to ensure that the controls are calmed.

Disconnect the control power air switch (safely).

Wait more than 5 minutes.

Open the door lock of the inverter (soft starter) cabinet and flip open the cabinet door.

Check the power at the input terminal of the main circuit to ensure that the voltage of the main circuit is at a safe level.

When the door of the inverter (soft starter) unit cabinet is opened, the LED light of the inverter (soft starter) of all units is acknowledged to be turned off.

Check that there is no voltage in the external cable terminations used to connect the control cabinet.

Check the input of the control power supply to ensure that the control supply voltage is at a safe level.

Ground the three-phase input power supply at the main circuit input.

Start reviewing and maintaining.

In the case of replacing the unit inverter (soft starter), please follow the instruction manual inverter (soft starter) operation manual.

                              Inverter device inspection and maintenance work steps

2. Recovery process:

(1) Remove the grounding wire of the main circuit.

(2) Turn on the control power and close the door. If you don't connect the control power supply, it won't work.

(3) Send power to the external main power supply (low-voltage cabinet drawer). When the external mains power is put on, it must be recognized that the indicator light on the control panel is on.

(4) Carry out safety recognition and make preparations for work.

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