Kerosakan fenomena:
The CNC system uses the 0i-MD system. During maintenance, a iSVSP servo amplifier of the same specification was replaced, equipped with i servo motors and spindle motors. During debugging, the three servo axes can operate normally, but when the spindle rotation command was just given, the The SP9012 alarm occurs when the spindle is not rotating.
sebab of isu:
Possible reasons for alarm SP9012 after consulting the data include:
1. Motor kuasa kabel kegagalan
2. Motor penebat kegagalan
3. The inherent parameters of the motor are not set correctly.
4. iSVSP kegagalan
Kegagalan analisis:
1. Menurut kepada the fault phenomenon, the possibility of iSVSP failure is unlikely because iSVSP is a newly replaced product.
2. Motor insulation failure is possible. You can use a multimeter to detect whether there is contact failure in the motor.
3. There should be no problem with the motor parameters because the newly replaced iSVSP has the same specifications.
4. Motor power cable failure is possible, because replacing iSVSP requires disassembly and assembly of the spindle motor wires. If the wires are connected incorrectly (such as short circuit, grounding or wrong connection), it will cause overcurrent in the motor.
Penyelesaian masalah:
The inspection revealed that the fault was caused by the reverse phase sequence of the power cables.
