Mitsubishi Electric MELSERVO-J4 Instruction Manual Trouble Shooting page 63

1. TROUBLESHOOTING
Alarm No.: 96 Name: Home position setting warning
Alarm content
Detail
Detail name
No.
96.1 In-position (1) INP (In-position) did not
warning at
home
positioning
96.2 Command (1)
input warning
at home
positioning
(2) Creep speed is high.
96.3 Servo off (1) A home positioning was
warning at
home
positioning
96.4 Home (1) Z-phase was not turned
positioning
warning during
magnetic pole
detection
Alarm No.: 99 Name: Stroke limit warning
Alarm content
Detail
Detail name
No.
99.1 Forward (1)
rotation stroke
end off
(2) The forward rotation
99.2 Reverse (1)
rotation stroke
end off
(2) The reverse rotation
Home position setting could not be made.
Cause
Check the droop
turn on within the pulses during home
specified time during positioning.
home positioning.
A command has already Check if a command is
inputted at the time of inputted at home
home positioning. positioning.
Decrease the creep
speed, and then check
the repeatability.
Check if the status is
executed during servo- servo-off at home
off. positioning.
Check if the Z-phase
on after servo-on. was turned on.
The stroke limit signal is off.
Cause
The forward rotation Check if the limit
stroke limit switch has switch is connected
not connected. correctly.
Check if the forward
stroke limit was rotation stroke limit
exceeded during driving. switch turned off.
The reverse rotation Check if the limit
stroke limit switch has switch is connected
not connected. correctly.
Check if the reverse
stroke limit was rotation stroke limit
exceeded during driving. switch turned off.
Check method Check result
It is In-position range
or more.
A command is
inputted.
A command is not
inputted.
It is not repeatable.
It is servo-off.
The Z-phase was not
turned on.
Check method Check result
It is not connected.
It is connected.
It turned off.
It is not connected.
It is connected.
It turned off.
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Action Target
Adjust gains to set [A]
droop pulses within [B]
the In-position range. [WB]
Remove the cause of [RJ010]
droop pulse
occurrence.
Set it after home
positioning.
Check (2).
Reduce the creep
speed.
Turn to servo-on, and [A]
then execute the
home positioning.
Rotate the direct drive
motor to turn on the
Z-phase.
Action Target
Connect it correctly. [A]
Check (2).
Check operation
pattern.
Connect it correctly.
Check (2).
Check operation
pattern.