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Frequency transformation program
Frequency transformation program
2014-10-23 by seoerccy
Electric overhead crane motor drive system has two carts, a motor car, 32 tons hook, small hook hoist motor 5 tons each one, this transformation the general idea is to use the inverter to control four to five motor to achieve heavy start, precision spindle bearings frequency control.

All kinds of cranes in addition to the transformation of the electrical control system to retain the original cam controller and each motor, none of the control cabinet and various relays, contactors will be canceled, the drive uses a special inverter SAJ lifting.



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