|Symptom||Possible Cause||Corrective Action||Section|
|Alarm 123 SPINDLE DRIVE FAULT||There are multiple possibilities.||Check the error code on the drive for the cause and the corrective action.||1|
|Alarm 149 SPINDLE TURNING||The spindle speed is not at zero during a tool change.||Use the diagnostic data to identify and address the fault.||2|
|Alarm 186 SPINDLE NOT TURNING||The spindle does not turn when commanded to.|
|Alarm 116 SPINDLE ORIENTATION FAULT||The spindle did not orientate correctly.||Inspect the orientation ring/shot pin assembly.||3|
|The spindle speed is incorrect.||The signal from the control is incorrect or bad.||Check the command voltage.||4|
|The spindle load is too high.||There is a mechanical problem with the spindle or the motor.||Check that the spindle turns freely.||5|
|The tools are dull.||Replace the dull tools.||6|
Check the spindle drive display for an error code. Refer to (1) of these manuals for the cause and the corrective action.
NOTE: A missing jumper can cause a 123 Spindle Drive Fault, for example some motors may not have an overheat sensor in this case the 500 cable must have a jumper.
|Field||Spindle is Stopped||Spindle is Not Stopped|
|SP ST*Spindle Not Stopped||0||1|
|SP AT* Spindle Not At Speed||1||0|
Possible Cause: The signal from the control is incorrect or bad.
Check the voltage of the speed command. The speed command for the spindle drive is sent by the 720 cable from P16 on the Motif or the Mocon. When the maximum rpm for the spindle is commanded you should measure 10 VDC across the 720 cable at the drive and P16 at the Motif or the Mocon.
Check 720 cable connections. Make sure they are not loose and make good contact.
If the voltage is correct, verify if the spindle drive parameters are correct. Refer to the Magnatek & Mitsubishi SP Drive Programming Manual.
Possible Cause: There is a mechanical problem with the spindle or the motor.
Check if the spindle and motor turn freely by hand. Check for a short to ground in the spindle motor. Refer to the Spindle Motor - Troubleshooting Guide.