KEB drive fault codes indicate an error occur in drive due to internal hardware problem or parameter issue. With the help of these error code you can easily identify and correct the issue in drive.

KEB drive fault Codes and their solutions:

1. bbL base block – comes when power modules for motor de-excitation locked.
2. bon close brake – comes when brake control, brake engaged.
3. boFF open brake – comes when brake control, brake released .
4. Cdd calculate drive – comes when measurement of the motor stator resistance.
5. dcb DC brake 7- comes when motor is decelerated by a DC-voltage at the output.
6. FAcc forward acceleration – comes when acceleration with the adjusted ramps in clockwise direction of rotation.
7. dLS low speed / DC brake – comes when modulation is switched off after DC-braking
8. FAcc forward acceleration – comes when acceleration with the adjusted ramps in clockwise direction of rotation.
9. Fcon forward constant – comes when acceleration / deceleration phase is completed.
10. FdEc forward deceleration – Icomes when the adjusted ramp times in clockwise direction of rotation
11. HCL hardware current limit – comes when the message is output if the output current reaches the hardware current limit.
12. LAS LA stop – This message is displayed if during acceleration the load is limited to the adjusted load level.
13. LdS Ld stop – This message is displayed if during deceleration the load is limited to the adjusted load level.
14. LS low speed – comes when no direction of rotation pre-set, modulation is off.
15. noP no operation – comes when control release (terminal ST) is not switched.
16. PA positioning active – This message is displayed during a positioning process.
17. SLL stall – This message is displayed if during constant operation the load is limited.
18. E. br Error brake – comes when the case of switched on brake control.
19. E.buS Error Watchdog – comes when adjusted monitoring time (Watchdog) of communication between operator and PC / operator and inverter has been exceeded.
20. E.dOH drive overheat – comes when overtemperature of motor PTC. Error can only be reset at E.ndOH, if PTC is again low-resistance.
21. E.EEP Error EEPROM defective – comes when hardware issue in drive. After reset the operation is again possible.
22. E.EF Error external fault – comes when external error Is triggered, if a digital input is being programmed as external error input and trips.
23. E.EnC Error Encoder cable – comes when cable breakage at the resolver or incremental encoder.
24. E.ndOH no ERROR drive overheat – comes when motor temperature switch or PTC at the terminals T1/T2 is again in the normal operating range.
25. E. OC overcurrent – Occurs, if the specified peak current is exceeded.
26. E. OH overheat pow.mod.- comes when overtemperature of power module.
27. E.OH2 motor protection – comes when electronic motor protective relay has tripped.
28. E.OHI overheat internal – comes when overheating in the interior.
29. E. OL overload – comes when mechanical fault or overload in the application.
30. E.OL2 overload 2 – Occurs if the standstill constant current is exceeded.
31. E. OP Overvoltage – comes when voltage in the DC-link circuit too high.
32. OS over speed – comes when real speed is bigger than the max. output speed.
33. E. Pu power unit – comes when general power circuit fault.
34. E.Puci Unknown power unit – comes when the initialization the power circuit could not be recognized or was identified as invalid.
35. E.Puch power unit changed – comes when power circuit identification was changed.
36. E.PUCO Power unit communication – comes when parameter value could not be written to the power circuit.
37. A.dOHdrive overheat – comes when the motor temperature has exceeded an adjustable warning level.
38. A. EF external fault – This warning is triggered via an external input.
39. A.ndOH drive overheat – comes when the motor temperature is again below the adjusted warning level.
40. A.nOH overheat pow.mod. – comes when the heat sink temperature is again below the adjusted warning level.
41. A.nOHI overheat internal – comes when the temperature in the interior of the inverter is again below the warning threshold.
42. A. OH overheat pow.mod. – comes when a level can be defined, when it is exceeded this warning is output.
43. A.OH2 motor protection – comes when electronic motor protective relay has tripped.
44. A.OHI overheat internal – comes when the temperature in the interior of the inverter lies above the permissible level.
45. A. OL overload – comes when a level between 0 and 100 % of the load counter can be adjusted, when it is exceeded this warning is output.
46. A.OL2 overload 2 – comes when the warning is output when the standstill continuous current is exceeded.

These are the error codes and their solutions. With the help of these you can easily resolved the problem in KEB drive.