Mitsubishi Electric MELSERVO MR-J4-B-RJ Series, Instruction Manual

Page: 101 / 174

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 94
Alarm No.: 90 Name: Home position return incomplete warning
Alarm content A home position return did not complete normally with the positioning function.
Detail
No.
Detail name Cause Check method Check result Action Target
90.1 Home position
return
incomplete
(5) A software stroke
limit/stroke limit was
detected.
In the I/O mode, check
if [AL. 99 Stroke limit
warning] occurred
when "_ _ _ 1" is set to
[Pr. PD12], or [AL. 98
Software stroke limit
warning] occurred
when "_ 1 _ _" is set to
[Pr. PD12]. [AL. 98 Software
stroke limit warning]
or [AL. 99 Stroke
limit warning]
occurred in the I/O
mode. Move the machine
to within the limit
range, and then
make a home
position return.
When the home
position is fixed,
enable servo-on
again. [GF]
[AL. 98 Software
stroke limit warning]
or [AL 99 Stroke
limit warning] did not
occur.
Or the motion mode
is set. Check (6).
(6) ZP2 (Home position
return completion 2)
turned off after the
home position return
was executed.
Check if ZP2 (Home
position return
completion 2) is off. ZP2 (Home position
return completion 2)
is off. Check the conditions
in which ZP2 (Home
position return
completion 2) is off.
(Refer to section
2.1.2 and 5.1.2 of
"MR-J4-_GF_(-RJ)
Servo Amplifier
Instruction Manual
(I/O Mode)".)