Fanuc Power Mate i-D/H Maintenance Manual

B63175EN/03
7. TROUBLESHOOTING
435
Absolute position data in the serial pulse coder was lost.
[This alarm occurs if the serial pulse coder is replaced, the position
feedback signal line is removed from the serial pulse coder, the battery or
its cable is removed, or parameters are loaded into the Power Mate as a
batch.]
Machine position must be memorized using the following method:
If a battery alarm (306) occurs in the α pulse coder, recover the normal
battery status, rotate the motor through at least one turn, then turn the
power off then on again.
(1)Execute manual reference position return only for an axis for which
this alarm was generated.When manual reference position return
cannot be executed because of an another alarm, set parameter 1815#5
to 0 and release the alarm and perform manual operation.
(2)Press RESET key at the end of reference position return to release the
alarm.
Execute dogless reference position setting to memorize the reference
position.
Since the reference position is different from the former one, change the
grid shift value (PRM 1850) to correct the position.
#7
1815
#6 #5
APC x
#4
APZx
#3 #2 #1 #0
APCx 0 : Position detector is incremental pulse coder.
1 : Position detector is absolute pulse coder.
APZx Reference position of absolute pulse coder is :
0 : not established
1 : established
7.12
ALARM 300
(REQUEST FOR
REFERENCE
POSITION RETURN)
Remedies
D When dog reference
position return function
is present
D When dog reference
position return function
is not present
D When serial pulse coder
is changed
Related parameters

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