E700 Drive

[Engr.Najeeb]

Dear All,

I need your support,i am working on Mitsubishi drive.My application is: if motor is running with drive with forward rotation and another motor with drive want to rotate first one motor in reverse direction with tension maintain.What is the possibilities.

means second motor will rotate first motor in reverse direction by torque and forcefully.other wise it will run on forward direction without load.

PLEASE URGENT REPLY

[Luke.S]

Are you talking about an unwinder tension control?

Anyway with an  E700 inverter presumably you're using an induction motor. If you forcibly reverse an induction motor I would expect it to trip the drive or at least overheat pretty badly.

It sounds like you should use a permanent magnet servo motor or torque motor. 

[kaare_t]

Also, in order to do anything like this you'll need a control system. The inverters won't forward->reverse->forward by themselves. You'll need a sequence program. Like @Luke.S writes, it's hard to say if this will work with this little information, you should write more about your application...