Vacon Nxs Service Manual ðŦ
8 System fault - component failure - faulty operation Note exceptional fault data record. Reset the fault and restart. www.otomasyonavm.com VACON NX SERVICE MANUAL Appendix FI10
| Fault Code | Description | Common Cause (per Service Manual) | | :--- | :--- | :--- | | | Overcurrent | Short circuit in motor cables; IGBT desaturation. | | F8 | System Fault | Control board communication error; noisy 24V supply. | | F12 | Input Phase Loss | Blown input fuses; weak mains supply. | | F15 | Output Phase Loss | Damaged motor cable; blown IGBT on one phase. | | F22 | DC Link Ripple | Capacitor aging; input rectifier failure. | vacon nxs service manual
Wait at least 5 minutes after disconnecting power before opening any covers to allow the DC bus capacitors to discharge to safe levels. 8 System fault - component failure - faulty