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Rexroth IndraDrive
Error Messages
7-7
DOK-INDRV*-GEN-**VRS**-WA01-EN-P
F8011 Commutation offset could not be determined
Supported by Firmware Variant:
FWA-INDRV*-
MPH02
VRS-MS
FWA-INDRV*-
MPB02
VRS-MS
FWA-INDRV*-
MPD02
VRS-MS
The sine-wave method for commutation setting could not determine any
value for the commutation offset.
Cause
Remedy
Axis could not carry out required motion
Check axis for stiffness or blocking; if necessary, reduce
friction (lubrication, guiding device of trailing cable
installation) or remove blocking
- or -
Set "search direction for sine-wave method" to "increase
of amplitude with priority" in
P-0-0522, Control word for
commutation setting
- or -
Increase value in
P-0-0506, Amplitude for angle
acquisition
, in order to increase excitation amplitude for
sine-wave method compared to frictional force of axis
During commutation setting process, axis got into
resonance
Set "search direction for sine-wave method" to "increase
of frequency with priority" in
P-0-0522, Control word for
commutation setting
- or -
Reduce value in
P-0-0507, Test frequency for angle
acquisition
in order modify excitation frequency for
sine-wave method compared to resonance frequency of
axis
Motor has not been supplied with current
Check motor connection
Sine-wave method without success, although axis
has required freedom of motion and doesn
’
t show
any resonance phenomena
Try with manually input values if automatic search for
motor-specific values for
P-0-0506, Amplitude for
angle acquisition
and
P-0-0507, Test frequency for
angle acquisition
doesn
’
t provide any result in spite of
several repetitions
Signals of motor encoder do not reflect motion
process of axis; encoder cables of 2 drives possibly
mixed up
- or -
Incorrect polarity of encoder signals
Check motor encoder signals. To do this move motor
knowing manufacturer-side setting for sense of rotation
or velocity polarity and check actual position values with
regard to polarity and plausibility.
F8011 - Attributes
Display:
F8011
Mess. no.:
F8011 (hex)
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