elevator inverter commissioning

elevator inverter commissioning
1 Set the motor power, very few, considering the elevator to the operating current of the inverter.
(2) Set the maximum output frequency of the inverter elevator, baseband, set the torque characteristics. Universal elevator inverter are available in many VPf curve for users to choose, users should be used according to the nature of the load curve select the appropriate VPf. If the fan and pump load, the torque converter to the elevator run code set to become operational characteristics of torque and torque reduction. In order to improve low-speed elevator inverter startup performance, so that the motor output torque can meet the production requirements of the load starts, to adjust the starting torque. In Thyssen Elevator parts of induction motor speed control system, the torque control is more complex. In the low frequency range, since the resistance, the leakage resistance effect can not be ignored, if VPf remain constant, the flux will decrease, thereby reducing the output torque of the motor. Therefore, the voltage at low frequencies to be appropriately compensated for to improve torque. Lift the drive by the general user manual to set the compensation. 3 Set the elevator inverter comes with keyboard operation mode, press the Run button, stop button, observe whether the motor can normally start, stop.
4 familiar with the drive is running a protection code fails to observe the thermal protection relay factory value, observe overload protection settings can be modified if necessary. The use of personnel elevator inverter can drive to the operating instructions for the inverter to set the electronic thermal relay function. When the inverter output current exceeds its allowable current, the inverter overcurrent protection will shut off the inverter output. Therefore, the inverter electronic thermal relay does not exceed the maximum threshold for the maximum allowable output current of the inverter.