006Fault · Control moduleUsually repairable
SIMODRIVE 611U 006: Checksum Test Error
What 006 means
The checksum test of the program or data memory failed, so the firmware or its memory is corrupt.
Symptoms
Fault at power-up; the axis never becomes ready.
Is it repairable?
Yes: 611U control modules are repaired at component level and tested on a drive.
Common causes
- Memory fault on the control module
- Corrupted firmware
Safe checks
- 1Power cycle once. If it repeats, reload firmware with a known-good memory module
- 2If it still repeats, the control module needs repair
Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.
Reviewed by AutomIQ repair technicians. Code and name from the SIMODRIVE 611 universal Function Manual.
Related SIMODRIVE 611U faults
- 003NMI due to watchdog
- 020NMI due to cycle failure
- 028Actual current sensing during power-up
- 504Measuring circuit error, motor measuring system
- 505Measuring circuit error, motor measuring system absolute track
- 507Synchronization error, rotor position