ABB ACL30 - Page 294

294 Fault tracing
2022
ENCODER 1
FAILURE
Encoder is activated by a
parameter but the encoder
interface (FEN-xx) cannot
be found.
Check that parameter 90.01
ENCODER SEL setting
corresponds to encoder interface
(FEN-xx) installed in drive Slot 1/2
(signal 09.20 OPTION SLOT 1 /
09.21 OPTION SLOT 2).
Note: The new setting will only
take effect after parameter 90.06
ENC PAR REFRESH is used or
after the JCU Control Unit is
powered up the next time.
2026
ENC EMULATION
FAILURE
Encoder emulation error If the position value used in
emulation is measured by the
encoder:
• Check that the FEN-xx encoder
used in emulation (90.02 EMUL
MODE SEL) corresponds to
FEN-xx encoder interface 1 or
(and) 2 activated with parameter
90.01 ENCODER SEL
(Parameter 90.01 activates the
position calculation of the used
FEN-xx input).
If the position value used in
emulation is determined by drive
software:
• Check that the FEN-xx encoder
used in emulation (90.02 EMUL
MODE SEL) corresponds to
FEN-xx encoder interface 1 or
(and) 2 activated with parameter
90.01 ENCODER SEL (because
position data used in emulation
is written to FEN-xx during
encoder data request).
Note: The new setting will only
take effect after parameter 90.06
ENC PAR REFRESH is used or
after the JCU Control Unit is
powered up the next time.
Code Alarm Cause What to do