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Appendix 7. Explanation of Alarms
Appendix 7.3 Servo/Spindle Alarms (S)
003A Overcurrent
Details
Excessive motor drive current was detected.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
003B Power module overheat
Details
The power module detected an overheat.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
003C Regeneration circuit error
Details
An error was detected in the regenerative transistor or in the regenerative resistor.
- Servo stop method: Dynamic stop
003D Pw sply volt err acc/dec
Details
A motor control error during acceleration/deceleration, due to a power voltage failure, was
detected.
- Servo stop method: Dynamic stop
003E Magnet pole pos detect err
Details
The magnetic pole position, detected in the magnetic pole position detection control, is not
correctly detected.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
0041 Feedback error 3
Details
Either a missed feedback pulse in the motor side detector or an error in the Z-phase was
detected in the full closed loop system.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
0042 Feedback error 1
Details
Either a missed feedback pulse in the position detection or an error in the Z-phase was
detected. Or the distance-coded reference check error exceeded the allowable value when
the distance-coded reference scale was used.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
0043 Feedback error 2
Details
An excessive difference in feedback was detected between the machine side detector and
the motor side detector.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop
0045 Fan stop
Details
An overheat of the power module was detected during the cooling fan stopping.
- Servo stop method: Dynamic stop
- Spindle stop method: Coast to a stop