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How to use the TWR-MC-LV3PH with an increased input voltage?

Question asked by Spencer Pallas on Oct 17, 2016
Latest reply on Oct 20, 2016 by Philip Drake

Hello,

 

I am trying to run the TWR-MC-LV3PH motor controller with an input voltage of 48V. I read in the user guide that some divider resistors in the DC bus and BEMF sensing circuit need to be modified  to increase the sensing range so I increased resistor R74 to be 40.2Kohms to get the proper readings at V_SENSE_DCB and V_SENSE_DCB_HALF. I increased the Maximum DC Bus voltage in the Protection & Hardware tab, which got rid of my DCBusVoltageError, but I am getting 2 non clearable faults: Current Sensor Calibration and ADC Offset. Are there any other resistors or fields in the KMS that need to be updated? I am using a sensored position configuration on a TWR-KV31F120M.

 

Thanks,

Spencer

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