ABB ACSM1 Firmware Manual page 236

236
Code Alarm
(fieldbus code)
2028 ENC EMUL MAX FREQ
(0x7386)
2029 ENC EMUL REF ERROR
(0x7387)
2030 RESOLVER AUTOTUNE
ERR
(0x7388)
2031 ENCODER 1 CABLE
(0x7389)
2032 ENCODER 2 CABLE
(0x738A)
2033 D2D COMMUNICATION
(0x7520)
Programmable fault:
COMM LOSS FUNC
2034 D2D BUFFER
OVERLOAD
(0x7520)
Programmable fault:
COMM LOSS FUNC
Fault tracing
Cause
TTL pulse frequency used in
encoder emulation.exceeds
maximum allowed limit
(500 kHz).
Encoder emulation has failed
due to failure in writing new
(position) reference for
emulation.
Resolver autotuning routines,
which are automatically started
when resolver input is activated
for the first time, have failed.
Encoder 1 cable fault detected.
Encoder 2 cable fault detected.
On the master drive: The drive
has not been replied to by an
activated follower for five
57.02
consecutive polling cycles.
On a follower drive: The drive
has not received new reference
1 and/or 2 for five consecutive
reference handling cycles.
Transmission of drive-to-drive
references failed because of
message buffer overflow.
57.02
What to do
Decrease parameter 93.21 EMUL PULSE NR
value.
Note: The new setting will only take effect
after parameter 90.10 ENC PAR REFRESH
used or after the JCU control unit is powered
up the next time.
Contact your local ABB representative.
Check cable between resolver and resolver
interface module (FEN-21) and order of
connector signal wires at both ends of cable.
Check resolver parameter settings.
For resolver parameters and information, see
parameter group 92 on page 196.
Note: Resolver autotuning routines should
always be performed after resolver cable
connection has been modified. Autotuning
routines can be activated by setting
parameter 92.02 EXC SIGNAL AMPL
92.03 EXC SIGNAL FREQ, and then setting
parameter 90.10 ENC PAR REFRESH
Configure.
Check cable between FEN-xx interface and
encoder 1. After any modifications in cabling,
re-configure interface by switching drive
power off and on, or by activating parameter
90.10 ENC PAR REFRESH.
Check cable between FEN-xx interface and
encoder 2. After any modifications in cabling,
re-configure interface by switching drive
power off and on, or by activating parameter
90.10 ENC PAR REFRESH.
Check that all drives that are polled
(parameters 57.04 and 57.05) on the drive-to-
drive link are powered, properly connected to
the link, and have the correct node address.
Check the drive-to-drive link wiring.
Check the settings of parameters
57.07 on the master drive.
Check the drive-to-drive link wiring.
Contact your local ABB representative.
is
or
to (1)
57.06 and