Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 159

8. TROUBLESHOOTING
Alarm No.36
Alarm description
Display Name
36.1 Continuous
communication
data error
Alarm No.37
Alarm description
Display Name
37.1 Parameter setting
range error
37.2 Parameter
combination error
Name: SSCNET receive error 2
SSCNET communication error (Continuous communication error for about 70ms.)
Cause
(1) SSCNET cable is
disconnected.
(2) Tip of SSCNET cable
has dirt.
(3) SSCNET cable is
broken or cut off.
(4) Vinyl tape is stacked to
SSCNET cable, or
cable containing
migrating plasticizer is
adhered to the cable.
(5) Servo amplifier is faulty.
(6) Servo amplifier in front or
rear axis of alarm
occurring axis is faulty.
(7) Fault is generated from
the surrounding
environment.
Name: Parameter error
Settings in the servo amplifier are incorrect.
Cause
(1) There is a parameter of
which value is set outside
of the setting range.
(2) EEP-ROM fault caused
by parameter write times
over.
(3) Servo amplifier fault
caused the parameter
setting to be rewritten.
(1) One parameter setting
contradicts another.
Stop method: Corresponding axis stops
Checkpoint
Check the cable Disconnected.
connection.
Connected properly.
Wipe off the dirt from the Not reproduced.
cable tip, and check
reproducibility.
Reproduced.
Check the cable. Problem found.
No problem found.
Check if the condition Meets.
stated in the left meets.
Does not meet.
Replace the servo Not reproduced.
amplifier and check the
reproducibility of the error. Reproduced.
Replace front and rear Reproduced in the
axes of alarm occurring rear axis of the
axis, and check the corresponding axis.
reproducibility of the error. Not reproduced.
Check for noise, etc. Problem found.
Stop method: Corresponding axis stops
Checkpoint
Check the parameter Outside of the range.
number, and check the
setting of the controller.
Within the range.
Write parameter values Abnormal values are
within the setting range, written.
and check that values are
Values are written
written correctly.
correctly.
Replace the servo Not reproduced.
amplifier and check the
reproducibility of the error.
Check parameter Problem found in the
numbers, and check the setting values.
setting values.
8 - 20
Finding Action
Turn off the power of
servo amplifier, and
connect the cable.
Check (2).
Take measure to keep
cable tip clean.
Check (3).
Replace the cable.
Check (4).
Take countermeasure.
Check (5).
Replace the servo
amplifier.
Check (6).
Replace the servo
amplifier.
Check (7).
Take countermeasure
according to the
cause.
Finding Action
Change parameter
value to within the
setting range.
Check (2).
Replace the servo
amplifier.
Check (3).
Use the newly
replaced servo
amplifier.
Correct the setting
value.