Rockwell Automation Publication 520-UM001G-EN-E - September 2014 153
Troubleshooting Chapter 4
Drive does not power up.
Motor is rotating at zero Hz or slip frequency is not correct.
Cause(s) Indication Corrective Action
No input power to drive. None • Check the power circuit.
• Check the supply voltage.
• Check all fuses and disconnects.
Control module is not connected properly to power module. None 1. Remove power.
2. Verify that the control module is properly and fully installed on the power module.
3. Reapply power.
Cause(s) Indication Corrective Action
Incorrect speed calculation. Improper speed. • Verify P032
[Motor NP Hertz].
• Reduce boost with A530 [Boost Select].
• Set P036 [Motor NP RPM] to motor synchronous speed.
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