Applicable Systems
EFC
FEX
FEI
HNC
Symptoms
Control component damaged. The drive has detected a hardware defect in the control module that prevents safe operation. The drive cannot be started.
Possible Causes
- Control board CPU or FPGA failure
- Control board power supply component failure
- Physical damage from impact or liquid ingress
- Electrostatic discharge (ESD) damage to control board components
Troubleshooting Steps
- Step 1: Inspect control board visually for physical damage, burn marks, or corrosion
No visible damage; if damage is present, board must be replaced - Step 2: Check for environmental factors: moisture, dust, or chemical contamination
Control cabinet is clean and dry; no signs of contamination - Step 3: Verify all ground connections to prevent ESD events
All grounds properly bonded; no floating grounds - Step 4: Replace control module
New module initializes and operates correctly
How to Reset
1) Visual inspection of control board. 2) Check environmental conditions. 3) Verify grounding. 4) Replace control module. Caution: Do not attempt PCB-level repair of control components.
Common Replacement Parts
- R911319000: IndraDrive control module (Verify exact part number by drive model)
Frequently Asked Questions
- Q: What causes control component damage?
Most commonly: ESD events, voltage transients, overheating, or physical impact. Proper grounding and environmental control prevent most cases.
- Q: Can the control board be repaired?
No. Control board repair requires factory-level equipment. Field replacement of the complete control module is the standard procedure.
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Source: Rexroth IndraDrive HCS/HMS Fault Code List, Bosch Rexroth AG
Category: PLC & VFD
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