Troubleshooting Z-Axis Motor Overheating Alarms 207011 & 207012

Alarms 207011 and 207012 indicate the motor is overheated due to high temperature detected by the drive, based on current draw over time.

This could be due to a mechanical load issue, extremely harsh duty cycle, high ambient temperature, motor oscillation, or an issue with the brake.

You can monitor the drive parameters, r78[0] (Current Actual Value) and r80 (Torque Actual Value), while the motor is at a standstill.

To check these Parameters: Go to [Setup] → [Machine Data] → [Drive Parameter] → Press [Select a Drive] and choose Z-Axis. Scroll down or search for r78[0] and r80

The values shown here are for the Z-Axis at a standstill from a known good machine.

A Trace can be preformed for a more accurate measurement to determine if the motor is unstable. Use these variables in the trace.

/Nck/ServoData/nckServoDataActCurr64[3]

/Nck/ServoData/nckServoDataActVel1stEnc64[3]

How to Setup and Use the Trace Tool.