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If a VFD stops due to a fault code and presents “OBF” it means there has been an overvoltage during deceleration. This most frequently occurs on a belt conveyor system under a full vehicle load in situations where an emergency stop or slowdown is activated. The momentum of the cars can cause the belt to ..
The DR Motor uses a new connection designation. Instead of using DTxx as used with DT/DV motors, the DR motor uses Rxx. The numbers represented by “xx” are usually the same for the new DR as the old DT/DV. For example, the DT13 standard connection previously used for a Δ/Y motor (230/400-50Hz) is now an ..