Mitsubishi Electric MELSERVO-J4 Instruction Manual Trouble Shooting page 35

1. TROUBLESHOOTING
Alarm No.: 34 Name: SSCNET receive error 1
Alarm content
Detail
Detail name
No.
34.1 SSCNET (1) The SSCNET III cable is
receive data
error
(2)
(3) The SSCNET III cable is
(4)
(5) The servo amplifier is
(6)
(7) The controller is
(8) Something near the
34.2 SSCNET Check it with the check method for [AL. 34.1].
connector
connection
error
34.3 SSCNET
communication
data error
34.4 Hardware error
signal detection
An error occurred in SSCNET III/H communication. (continuous communication error with 3.5 ms interval)
Cause
Check the SSCNET III
disconnected. cable connection.
The surface at the end Wipe off the dirt from
of SSCNET III cable got the cable tip, and then
dirty. check the
repeatability.
Check if the SSCNET
broken or severed. III cable is
malfunctioning.
A vinyl tape is stacked Check if a vinyl tape is
to the SSCNET III cable. used. Check if the
Or a wire insulator cable is contacting
containing migrating with other cables.
plasticizer is adhered to
the cable.
Replace the servo
malfunctioning. amplifier, and then
check the
repeatability.
The previous or next Replace the previous
axis servo amplifier of and next servo
the alarm occurred is amplifier of the alarm
malfunctioning. occurred axis, and
then check the
repeatability.
Replace the controller,
malfunctioning. and then check the
repeatability.
Check the noise,
device caused it. ambient temperature,
etc.
Check method Check result
It is disconnected.
It is connected.
It is not repeatable.
It is repeatable.
It has a failure.
It has no failure.
It is used. They are in
contact.
It is not used. They
are not in contact.
It is not repeatable.
It is repeatable.
It is not repeatable.
It is repeatable.
It is not repeatable.
It is repeatable.
It has a failure.
1 - 28
Action Target
Turn off the control [B]
circuit power supply [WB]
of the servo amplifier,
and then connect the
SSCNET III cable.
Check (2).
Take measure to
keep the cable tip
clean.
Check (3).
Replace the SSCNET
III cable.
Check (4).
Take
countermeasures
against its cause.
Check (5).
Replace the servo
amplifier.
Check (6).
Replace the servo
amplifier.
Check (7).
Replace the
controller.
Check (8).
Take
countermeasures
against its cause.