... .0~100.0s; brake unit for GK800-4T45 and below is built inDC brake capacityDC brake start frequency: 0.00~600.00HzDC ... key setting, droop control, parameter identification of asynchronous and synchronous motors, weak magnetic control, high-precision torque restraint, V/f separated ... machine, compressor, crusher, pump, fan, etc. close loop vector control AC motor drive for lift elevator escalator