YASKAWA YASNAC i80 - Alarms 3181 to 3188 (Position Errors); Alarms 3201 to 3208 (Servodrive Unit Communication Errors)

4.2.19 ALARMS 3181 TO 3188 (POSITION ERRORS)
Malfunction of PG pulse counter inside absolute encoder
is detected.
Table 4.21
Alarms 3181 to 3188 (Position Errors)
Cause of Trouble
I
Check Method
I
Solution
Failure of model
Check whether the alarm is caused by mere
Replace model
JANCD-
JANCD-FC300B board
application of control power.
FC300B board.
Erroneous wiring
Check A, B, and C phase pulses using If erroneous wiring is
of encoder
I monitor board.
I found, correct the wirin~.
Malfunction of PG Check whether the alarm occurs frequently
● Restart operation after
pulse counter inside during operation.
turning power OFF,
absolute encoder (due then ON again.
to noise)
● Take appropriate
corrective action for
noise.
a
A
4.2.20 ALARMS 3201 TO 3208 (SERVODRIVE UNIT
COMMUNICATION ERRORS)
Serial communication error between NC and AC
servodrive unit is detected.
Table 4.22
Alarms 3201 to 3208 (Servodrive Unit Communication Errors)
Cause of Trouble
Check Method
Solution
Erroneous wiring
Check wiring according to YASNAC i80
Refer to Section 11 of
Connecting Manual
(TOE-C843-11.5).
YASNAC i80 Connecting
Manual
(TOE-C843-11.5)
and correct the wiring.
Wrong setting of AC
Check setting of ID switch of AC servo drive
Refer to Section 11 of
servo drive unit ID
unit according to YASNAC i80 Connecting
YASNAC i80 Connecting
switch
Manual
(TOE-C843-11.5).
Manual (TOE-C843-11.5)
and correct the setting.
Defective AC servodrive
Check whether the alarm occurs when the
Replace model
JANCD-
unit or modd-JANCD-
wiring and ID switch are not erroneous.
FC300B board or AC servo
FC300B board
drive unit.
Contact your YASKAWA
representative.
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