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Chapter 5 AC drive Operating Instructions
ACH200 Series High Voltage Variable Frequency Speed Control System Operating Manual
Figure.5-7
◆ Remote communication control, Digital given, Open-loop 0peration
1. Check the status of contactors and circuit breakers and various connections. Check the bypass
cabinet to confirm that KM1, KM2 and KM3 vacuum contactors are completely disconnected;
check the control cabinet to confirm that the control board connections, including the fiber optic
part of the interface are reliably connected. Check that all miniature circuit breakers in the control
cabinet are in the disconnected position (the circuit breakers in the control cabinet can be
disconnected without repeatedly starting after operation).
2. Power on the control circuit. Close all the circuit breakers in the control cabinet to determine the
system control power supply is normal.
3. Wait for the LCD touch screen to enter the main operating interface, to ensure that there is no
fault.
4. Enter the parameter setting interface for parameter setting. Select "Remote Command Source"
for the command source, "RS485 communication source" for the frequency setting source, and no
closed loop mode.
Figure.5-8
Figure.5-9
5. Press the "AC drive Close Button" and wait for KM1 and KM2 to close (can be judged by the
indicator).
6. Inform the user to apply high voltage power to the AC drive (determine whether there is high
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