ABB ACSM1 - Page 309

Fault tracing
309
2024 LATCH POS 1 FAILURE
(0x7382)
Position latch 1 from encoder 1
or 2 has failed.
Check latch source parameter settings: 62.04
HOME SWITCH TRIG, 62.12 PRESET TRIG,
62.15 TRIG PROBE1 and 62.17 TRIG
PROBE2. Note that zero pulse is not always
supported. *
Check that appropriate encoder interface 1/2
is activated by parameter 90.10 ENCODER 1
SEL / 90.02 ENCODER 2 SEL.
Note: The new setting will only take effect
after parameter 90.10 ENC PAR REFRESH is
used or after the JCU control unit is powered
up the next time.
* - Zero pulse is supported when TTL input of
encoder interface module is selected (i.e. par.
90.01/90.02 = (1) FEN-01 TTL+, (2) FEN-01
TTL, (4) FEN-11 TTL or (6) FEN-21 TTL.
- Zero pulse is supported when absolute
encoder input of encoder interface module is
selected and zero pulse is enabled (i.e.
90.01/90.02 = (3) FEN-11 ABS and 91.02 =
(0) None / (1) Commut sig and 91.05 = (1)
TRUE).
- Zero pulse is not supported when resolver
input is selected (i.e. 90.01/90.02 = (5) FEN-
21 RES).
2025 LATCH POS 2 FAILURE
(0x7383)
Position latch 2 from encoder 1
or 2 has failed.
See alarm LATCH POS 1 FAILURE.
2026 ENC EMULATION
FAILURE
(0x7384)
Encoder emulation error If position value used in emulation is
measured by encoder:
- Check that FEN-xx encoder used in
emulation (90.03
EMUL MODE SEL)
corresponds to FEN-xx encoder interface 1 or
(and) 2 activated by parameter 90.01
ENCODER 1 SEL / 90.02 ENCODER 2 SEL.
(Parameter 90.01/90.02 activates the position
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 SEL)
corresponds to FEN-xx encoder interface 1 or
(and) 2 activated by parameter 90.01
ENCODER 1 SEL / 90.02 ENCODER 2 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 90.10 ENC PAR REFRESH is
used or after the JCU control unit is powered
up the next time.
Code Alarm
(fieldbus code)
Cause What to do