REXROTH DIAX04, Troubleshooting Manual

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4-14
Description of Diagnostic Letters F... and E... DIAX04 ELS-06VRS
DOK-DIAX04-ELS-06VRS**-WA01-EN-P
2. Use the P-0-0008, Activation E-Stop-function parameter to de-
activate the emergency stop function.
See also the functional description: "Connection of the Emergency-Stop
Input"
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. If the
divergence is greater than the parameterized
P-0-0097, Absolute
encoder monitoring window , the error F276 is generated and
transferred to the control unit.
Cause:
1. Turning on for the first time (invalid stored position).
2. While turned off, the axis was moved further than the distance
parameterized in P-0-0097, Absolute encoder monitoring window .
3. Incorrect position initialization.
Remedy for:
1. Press S1 to reset the error and set the absolute position.
2. The axis 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. Then reset the error.
3. Check whether the error is generated again. If yes, the electronics
module is possibly defective and will have to be replaced.
WARNING
An accident may occur by accidental axis 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".
F280 Short circuit to ground
Cause:
Ground short in the DC bus or in the motor.
This error is reported only in compact devices.
Remedy:
- Isolation test of the motor and motor power supply cable.
- Disconnect the power supply cable from the motor to the drive and turn
on the drive and the power. If the error recurs, the drive should be
exchanged.