Invt CHV190-037G-4 Инструкция по эксплуатации онлайн [174/242] 471535

CHV190 series special inverter for crane

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Notice: 485 communications (communications card and I/O expansion cards) and

CAN communication (I/O expansion card) are valid in master-slave power balance

host mode.

Master-slave control is used to distribute load among two or more motor to reach balance.

When transmission device is driven by two or more motor and these motors are coupled

by gears, chains or belts, then master-slave control function is needed.

An external control signal can be connected to host only which control slave by a serial

communication link (CAN bus or 485 bus). The external signal can also be connected to

both host and slave, while the communication only passes the host torque signal.

Host uses speed control and slave follows host’s torque or speed given. There are three

kinds of application in general.

1) When motor shaft of master and slave use flexible connection.

The host works as speed control and the slave should use speed control mode too

because slight difference of speed between host and slave are permitted, please refer to

example one for master-slave control.

2) When motor shaft of host and slave machine use rigid connection by gears, chains.

The slave should use torque control mode to make sure no speed differences among drive

units. Please refer to example two for master-slave control.

3) The slave needs using both speed control and torque control in some applications. One

digital input terminal is needed for switching between speed control and torque control.

Example one for master-slave control: