C1221 Automatic Commutation: Iteration Without Result - Bosch Rexroth IndraDrive Troubleshooting Manual

9-90
Command Diagnostic Messages

C1221 Automatic commutation: iteration without result

Cause
Type current of controller too low
Test current generated in motor is too low
LSA Control S.L. www.lsa-control.com comercial@lsa-control.com (+34) 960 62 43 01
Supported by Firmware Variant:
The commutation offset determination (P-0-0524, C1200 Commutation
offset setting command) was unsuccessful. It was impossible to find
appropriate values for P-0-0506, Amplitude for angle acquisition and
P-0-0507, Test frequency for angle acquisition with which it would
have been possible to obtain sufficient magnetic saturation effects in the
motor. It was therefore impossible to determine a functioning value for the
commutation offset.
Remedy
Use controller that can supply motor with sufficiently
high current (for Rexroth kit motors, required minimum
current for magnetic saturation effects is approx.
2.0...2.5-fold continuous current at standstill).
If without success, check whether sine-wave method
can be used for commutation offset setting
Manually increase value of P-0-0506, Amplitude for
angle acquisition or reduce value of P-0-0507, Test
frequency for angle acquisition so that higher test
current is generated.
If without success, check whether sine-wave method
can be used for commutation offset setting
See also Functional Description "Commutation Setting"
C1221 - Attributes
Display: C1221
Mess. no.: C1221 (hex)
Rexroth IndraDrive
FWA-INDRV*-MPH02VRS-MS
FWA-INDRV*-MPB02VRS-MS
FWA-INDRV*-MPD02VRS-MS
DOK-INDRV*-GEN-**VRS**-WA01-EN-P