Mitsubishi Electric MELSERVO MR-J4-B-RJ Series, Инструкция по эксплуатации

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1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 76
Alarm No.: 79 Name: Functional safety unit diagnosis error
Alarm content A diagnosis of the functional safety unit failed.
Detail
No.
Detail name Cause Check method Check result Action Target
79.3 Abnormal
temperature of
functional safety
unit
(1) Ambient temperature
has exceeded 55 ˚ C.
Check the ambient
temperature. It is over 55 ˚ C. Lower the ambient
temperature. [A]
[B]
[GF]
It is less than 55 ˚ C. Check (2).
(2) Ambient temperature is
less than 0 ˚ C.
Check the ambient
temperature. It is less than 0 ˚ C. Increase the ambient
temperature.
It is 0 ˚ C or more. Check (3).
(3) The close mounting is
out of specifications.
Check the
specifications of close
mounting. It is out of
specifications. Mount it correctly.
It is within
specifications. Check (4).
(4) An opening is clogged
up.
Clean the opening and
check the
repeatability. It is not repeatable. Clean it periodically.
It is repeatable. Check (5).
(5) The functional safety
unit is malfunctioning.
Replace the functional
safety unit, and then
check the
repeatability. It is not repeatable. Replace the
functional safety unit.
It is repeatable. Check (6).
(6) Something near the
device caused it.
Check the power
supply for noise. It has a failure. Take
countermeasures
against its cause.
79.4 Servo amplifier
error
(1) The functional safety
unit came off.
Check the installation
of the functional safety
unit. It has a failure. Install it correctly.
It has no failure. Check (2).
(2) The functional safety
unit is malfunctioning.
Replace the functional
safety unit, and then
check the
repeatability. It is not repeatable. Replace the
functional safety unit.
It is repeatable. Check (3).
(3) The servo amplifier is
malfunctioning.
Replace the servo
amplifier, and then
check the
repeatability. It is not repeatable. Replace the servo
amplifier.
It is repeatable. Check (4).
(4) Something near the
device caused it.
Check the noise,
ambient temperature,
etc. It has a failure. Take
countermeasures
against its cause.
79.5 Input device
error
(1) A signal of input device
is not inputted
correctly.
Check if the input
device cable is wired
correctly. It has a failure. Review the wiring.
It has no failure. Check (2).
(2) The input device
setting parameter is not
set correctly.
Check if the
parameter is set
correctly. It is not set correctly. Review the
parameter.
It is set correctly. Check (3).
(3) The test pulse time was
not set correctly.
Check the setting of
[Pr. PSD26 Input
device - Test pulse off
time]. The test pulse width
is longer than the
set value. Set the value longer.
The test pulse width
is shorter than the
set value. Check (4).
(4) The functional safety
unit is malfunctioning.
Replace the functional
safety unit, and then
check the
repeatability. It is not repeatable. Replace the
functional safety unit.
It is repeatable. Check (5).
(5) Something near the
device caused it.
Check the noise,
ambient temperature,
etc. It has a failure. Take
countermeasures
against its cause.