ABB ACSM1 Firmware Manual page 204

204
Code Alarm
(fieldbus code)
2023 ENCODER 2 FAILURE
(0x7381)
2026 ENC EMULATION
FAILURE
(0x7384)
Fault tracing
Cause
Encoder 2 has been activated
by parameter but the encoder
interface (FEN-xx) cannot be
found.
EnDat or SSI encoder is used in
continuous mode as encoder 2.
[I.e. 90.02 ENCODER 2 SEL
(3) FEN-11 ABS
and
91.02 ABS ENC INTERF
ENDAT or (4) SSI)
and
91.30 ENDAT MODE = (1)
CONTINUOUS (or 91.25 SSI
MODE = (1) CONTINUOUS).]
Encoder emulation error
What to do
Check parameter
setting corresponds to encoder interface 2
(FEN-xx) installed in drive Slot 1/2 (signal
9.20 OPTION SLOT 1
2).
Note: The new setting will only take effect
after parameter
used or after the JCU control unit is powered
up the next time.
If possible, use single position transfer
instead of continuous position transfer (i.e. if
encoder has incremental sin/cos signals):
=
- Change parameter
ENDAT MODE
= (2)
Otherwise use EnDat/SSI encoder as
encoder 1:
- Change parameter
to value (3) FEN-11 ABS
90.02 ENCODER 2 SEL
Note: The new setting will only take effect
after parameter
used or after the JCU control unit is powered
up the next time.
If position value used in emulation is
measured by encoder:
- Check that FEN-xx encoder used in
emulation (90.03 EMUL MODE
corresponds to FEN-xx encoder interface 1 or
(and) 2 activated by parameter
ENCODER 1 SEL
(Parameter 90.01/90.02
calculation of the used FEN-xx input).
If position value used in emulation is
determined by drive software:
- Check that FEN-xx encoder used in
emulation (90.03 EMUL MODE
corresponds to FEN-xx encoder interface 1 or
(and) 2 activated by parameter
ENCODER 1 SEL
(because position data used in emulation is
written to FEN-xx during encoder data
request). Encoder interface 2 is
recommended.
Note: The new setting will only take effect
after parameter
used or after the JCU control unit is powered
up the next time.
90.02 ENCODER 2 SEL
/ 9.21 OPTION SLOT
90.10 ENC PAR REFRESH
91.25 SSI MODE / 91.30
to value (0) INITIAL POS..
90.01 ENCODER 1 SEL
and parameter
to value (0) NONE.
90.10 ENC PAR REFRESH
SEL)
90.01
/ 90.02 ENCODER 2 SEL.
activates the position
SEL)
90.01
/ 90.02 ENCODER 2 SEL
90.10 ENC PAR REFRESH
is
is
is