3-14 Description of diagnostic letters F... and E... ECODRIVE03 SMT-02VRS
DOK-ECODR3-SMT-02VRS**-WA01-EN-P
F276 Absolute encoder out of allowed window
When turning off the drive controller with an absolute encoder, the actual
feedback position will be stored. When powered up, the absolute position
given by the encoder is compared with the stored position.
Cause:
1. Turning on for the first time (invalid stored position)
2. The motor has been moved further than allowed by the parameter in
the absolute encoder monitoring window, P-0-0097, while it was
turned off.
3. Incorrect position initialization
Remedy:
For 1. Press S1 to reset the error and set the absolute position.
For 2. The motor was moved while turned off and sits outside of its
permissible position. Check to see if the displayed position is
correct in relation to the machine zero point. Reset subsequent
errors.
For 3.
WARNING
An accident may occur by accidental shaft
movement.
Check absolute position information. The feedback is
defective if the absolute position information is wrong.
The motor should be exchanged and sent to the Rexroth
Indramat Customer Service.
Note: If a customer password is activated and the drive controller is
locked, then error F276 Absolute encoder out of allowed
window cannot be reset. The drive controller must be unlocked
first.
See also the functional description "Absolute Encoder Monitoring".
F277 Current measurement trim wrong
The current reading in the drive controller is compensated for during
operation. The compensation values are stored in parameters P-0-4000
and P-0-4001. These values are queried to ensure they maintain the
tolerance of +/- 10 %. Should the values be greater, then this error is
generated.
Cause:
1. Hardware defective in the drive controller.
Remedy:
1. Replace hardware.
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