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Question:

Can a frequency converter drive two identical motors at the same time? Please expert pointing! Thank you

I am in control of the equipment: the same mechanical movement, this needs a motor drive, a frequency converter drive. Now it's due to the mechanical location: buy two units of the same motor. Can you use a converter in parallel to drive it? Please point out! Thank you (frequency converter: the power of Schneider is equal to the sum of two motors)

Answer:

Can be controlled at the same time, but the power of the inverter is equal to the sum of the power of the two motors multiplied by 1.2 times before you can. And the inverter output can not add contactor. To ensure that the inverter is to control the start and stop of the two motors.
It is possible to control more than one motor with 1 inverters, which are controlled by the transmission track motors in general metallurgical projects, but should pay attention to the following points before operation:1 the choice of inverter power (the power converter must be greater than or equal to the sum of the motor power)2, the choice of control mode (usually with VF control, no speed feedback open-loop control)3 parameter settingsA sets the current value of the motor to the sum of the current values used by all motorsB sets the voltage and frequency of the motor, which is the voltage and frequency value of an electric motor
In theory, there is no problem with your use. If you have a good mechanical connection, you can do it. If you need high-precision association control, you need to use two inverters
I suggest you use SIEMENS's 6SE70 model converter (I used this to do a lot of track debugging, it's really easy to use and not easy to go wrong)Communication with the PLC, as long as the Profeibus link on the good, communication and control characters are very good setRemark: a multi motor controlled by a transducer must start and stop at the same time, and the control speed is the same
Yes, of course. The simple output is the AC contactor control. But if the two units move at the same time, they can only move synchronously, that is, the speed must be the same. Or you can see if there are two output inverters.

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