Rexroth HVR / HVE power Supply Fault codes
The following Bosch Rexroth Indramat fault codes apply to HVR / HVE drive systems. These codes indicate electrical overloads, communication failures, temperature warnings, internal component faults, and power section issues.
If your drive displays one of the fault codes below and will not reset, professional diagnostic repair may be required.
What To Do If Your Indramat Drive Shows a Fault Code
Record the exact fault number displayed.
Attempt a system reset if safe to do so.
If the fault returns, internal component damage may be present.
Many legacy Indramat HVR / HVE drives remain repairable, even if discontinued.
| bb | READY FOR POWER ON Supply and drives are fault-free. Power can be switched on. |
| Lb | POWER OK Mains contactor is ON. DC bus voltage within permissible range. |
| 14 | EXTERNAL COMPONENT WARNING WARNING an auxiliary unit is being applied. Power off in 30 s. |
| 15 | CONTROL VOLTAGE TEMP. WARNING Control voltage supply is overloaded. The temperature pre-warning contact has opened. |
| 16 | SOFTSTART-FAULT DC bus cannot be loaded. |
| 17 | POWER OFF WITH BUS SHORTING Power is off and DC bus dynamic brake activated. |
| 18 | HEATSINK OVERTEMP. FAULT Power off due to excessive heatsink temperature. |
| 20 | BLEEDER OVERLOAD Rotary drive energy (HVR/HVE) or regenerated power (HVE) too high. |
| 23 | DRIVE FAULT Power of due to drive error. |
| 24 | EXTERNAL COMPONENT ERROR Power off due to fault in auxiliary unit (bleeder, loading device). |
| 25 | REGEN. POWER OVERLOAD Continuous regenerated power of the drives excessive. |
| 26 | BUS POWER OVERLOAD The continuous feed in power of the drive excessive. |
| 50 | HEATSINK TEMP. WARNING Temperature pre-warning contact is open. Power off in 30 s |
| 52 | BLEEDER OVERLOAD WARNING 80 % of the allowable bleeder ON time has been achieved due to excessive regenerated power. |
| 60 | OVERCURRENT Short-circuit in supply or drive in motor or in a cable. |
| 69 | +24 V / ±15 V / +5 V FAULT Control voltages faulty. |
| 80 | SHORT TO GROUND Ground fault in supply or drive unit, in motor or in cable. |
| 81 | POWER FAILURE One or several mains phases missing. |
| 82 | PHASELOSS FAULT One or several mains phases missing or the mains voltage is too low. |
| 83 | LINE VOLTAGE FAULT Mains voltage exceeds permissible tolerance. |
| 84 | LINE VOLTAGE FAULT Mains voltage exceeds permissible tolerance. |
| 85 | LINE FREQUENCY FAULT Mains frequency exceeds permissible tolerance. |
| 87 | CONTROL VOLTAGE SUPPLY FAILURE The HVE control voltage supply exceeds permissible tolerance. |
| 94 | EPROM CHECKSUM ERROR Hardware or software error in unit. |
| . . | DEVICE FAILURE Hardware or software error in unit. |
| _ _ | +5 V FAILURE +5 V control voltage failure. |