Mitsubishi Melsec-A Series User Manual page 151

8. TROUBLESHOOTING
, . . ~
, ,
.
. .
.
/MELSEC
(2)
System zero
has moved
Check distance the zero point has moved.
YES
Ensure that the zeroing dcg is witched off while
c
the zero
phase
signal is on.
(Refer to Section
3.5.2.)
m
Ensure
that the zero is close enough to
the zeroing dog.
c Check
for
con- bounce
etc. in zeroing
dog.
4
e
Zeroing dog or wiring faulty.
w
Check for zeroing
dog
signal.
NO
c
Replace zeroing dog.
r -
Check motor drive unit.
8-1 5
IB
I W
ffi101-A