Mitsubishi Electric MELSERVO-J4 Instruction Manual page 53

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 34 Name: SSCNET receive error 1
Alarm content
Detail
Detail name
No.
34.1 SSCNET (1) The SSCNET III cable
receive data
error
(2) The surface at the end
(3) The SSCNET III cable
(4) A vinyl tape is stacked
(5) The servo amplifier is
(6) The previous or next
(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
34.5 SSCNET
receive data
error (safety
observation
function)
34.6 SSCNET
communication
data error
(safety
observation
function)
An error occurred in SSCNET III/H communication. (continuous communication error with 3.5 ms interval)
Cause
Check the SSCNET
was disconnected. III cable connection.
Wipe off the dirt from
of SSCNET III cable the cable tip, and
got dirty. then check the
repeatability.
Check if the SSCNET
is broken or severed. III cable is
malfunctioning.
Check if a vinyl tape
to the SSCNET III is used. Check if the
cable. Or a wire cable is contacting
insulator containing with other cables.
migrating plasticizer is
adhered to the cable.
Replace the servo
malfunctioning. amplifier, and then
check the
repeatability.
Replace the previous
axis servo amplifier of and next servo
the alarm occurred is amplifier of the axis
malfunctioning. alarm occurred, and
then check the
repeatability.
Replace the
malfunctioning. controller, 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.
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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.