Mitsubishi Electric MELSERVO-J4 Instruction Manual page 70

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 65 Name: Functional safety unit connection error
Alarm content
Detail
Detail name
No.
65.1 Functional (1) The functional safety
safety unit
communication
error 1
(2) The functional safety
(3) The servo amplifier is
(4) Something near the
65.2 Functional Check it with the check method for [AL. 65.1].
safety unit
communication
error 2
65.3 Functional
safety unit
communication
error 3
65.4 Functional
safety unit
communication
error 4
65.5 Functional
safety unit
communication
error 5
65.6 Functional
safety unit
communication
error 6
65.7 Functional
safety unit
communication
error 7
65.8 Functional
safety unit shut-
off signal error 1
65.9 Functional
safety unit shut-
off signal error 2
Communication or signal between a functional safety unit and servo amplifier failed.
Cause
Check the installation
unit came off. of the functional
safety unit.
Replace the
unit is malfunctioning. functional safety unit,
and then check the
repeatability.
Replace the servo
malfunctioning. amplifier, 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 is not repeatable.
It is repeatable.
It has a failure.
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Action Target
Turn off the control [A]
circuit power supply [B]
of the servo [GF]
amplifier, and then
connect the
functional safety unit.
Check (2).
Replace the
functional safety unit.
Check (3).
Replace the servo
amplifier.
Check (4).
Take
countermeasures
against its cause.