| 61 | Power module overcurrent | Overcurrent detected in the power module. | Insulation test of motor/cable, check power module. | Replace defective module or eliminate short circuit. |
| 62 | Frequency error | Input frequency outside allowable range. | Check mains frequency and voltage stability. | Stabilize mains supply. |
| 66 | Process error | Error in internal process cycle. | Internal hardware self-diagnosis. | Power cycle the unit, replace if necessary. |
| 67 | Phase interruption | Phase failure detected in mains supply. | Measure input voltage at L1, L2, L3. | Check fuses and supply lines. |
| 68 | Watchdog | Internal software monitoring error. | CPU status and EMC influences. | Hardware reset or replace control electronics. |
| 69 | Grounding | Ground fault in motor cable or motor. | Check insulation resistance to ground. | Repair cable or motor. |
| 6A | External contactor welding | Main contactor contacts are stuck. | Continuity test of contactor contacts. | Replace main contactor. |
| 6B | Rush circuit error | Error in inrush current limiting circuit. | Check charging circuit and resistors. | Repair charging circuit. |
| 6C | Main circuit error | Error during DC bus charging. | DC bus capacitors and charging contactor. | Component replacement in main circuit. |
| 6D | Parameter setting error | Invalid parameter data received. | Check parameterization in CNC. | Set parameters correctly. |
| 6E | Memory error / AD error | Memory error or A/D converter error. | Internal hardware check. | Replace control board. |
| 6F | Power supply error | No communication or voltage error. | Check connection cables and internal voltages. | Check cables or repair power supply. |
| 70 | External emergency stop error | Error in external emergency stop circuit. | Check emergency stop input signal. | Check safety circuit. |
| 71 | Instantaneous power interruption | Brief mains voltage drop. | Mains stability and supply line. | Ensure stable power supply. |
| 72 | Fan stop | Cooling fan stopped or defective. | Check fan for blockage or defect. | Clean or replace fan. |
| 73 | Over regeneration | Regenerative resistor overloaded. | Check braking cycle and resistor value. | Adjust cycle times or increase resistor capacity. |
| 75 | Overvoltage | DC bus voltage too high. | Check mains voltage and braking circuit. | Check braking resistor and mains voltage. |
| 76 | External emergency stop setting error | Incorrect setting of emergency stop rotary switch. | Check switch position on the unit. | Set rotary switch correctly. |
| 77 | Power module overheat | Overheating of the power module. | Check heat sink for dirt and fan function. | Clean or improve cooling. |
| E9 | Instantaneous power interruption warning | Warning of brief mains voltage drop. | Monitor mains quality. | No immediate action required, check mains. |
| EA | In external emergency stop state | External emergency stop is active. | Machine safety chain. | Release emergency stop. |
| EB | Over regeneration warning | Regenerative load reached 80% of limit. | Check regenerative energy load. | Optimize cycle time. |
| EE | Fan stop warning | Warning: Fan speed is dropping. | Check fan for dirt. | Replace fan preventively. |