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

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1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 98
Alarm No.: 95 Name: STO warning
Alarm content
STO input signal turns off while the servo motor stops.
A diagnosis of input devices was not executed.
The safety observation function was enabled in the test mode.
Detail
No.
Detail name Cause Check method Check result Action Target
95.4 STO warning 2
(safety
observation
function)
(1) The test operation
mode was not set
correctly.
Check if the servo
amplifier and
functional safety unit
are set to the test
operation mode. It is not set. Set it correctly. [A]
[B]
[WB]
[RJ010]
[GF]
It is set. Check (2).
(2) An error occurred in the
safety communication.
Or the network is
disconnected.
Check the description
"The display shows
"Ab"." of the section
1.6. It is not repeatable. Take
countermeasures
against its cause.
It is repeatable. Check (3).
(3) "Input mode selection"
in [Pr. PSA02
Functional safety unit
setting] is not set
correctly.
Set [Pr. PSA02]
correctly and check
the repeatability. It is not repeatable. Review the
parameter.
It is repeatable. Check (4).
(4) A functional safety unit
which is not compatible
with the safety
communication is
connected.
Check the software
version of the
functional safety unit. It is A1 or earlier. Replace the
functional safety unit
with a one with
software version A2
or later. [GF]
It is A2 or later. Check (5).
(5) The setting of [Pr.
PSC04 Safety
communication -
Network
communication
selection] is incorrect.
Correct the setting of
[Pr. PSC04] and check
the repeatability. It is not repeatable. Review the
parameter setting. [B]
[GF]
It is repeatable. Check (6).
(6) The servo amplifier is
malfunctioning.
Replace the servo
amplifier, and then
check the
repeatability. It is not repeatable. Replace the servo
amplifier. [A]
[B]
[WB]
[RJ010]
[GF]
It is repeatable. Check (7).
(7) 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 (8).
(8) Something near the
device caused it.
Check the noise,
ambient temperature,
etc. It has a failure. Take
countermeasures
against its cause.
95.5 STO warning 3
(safety
observation
function)
(1) STO command/SS1
command of the
functional safety unit
was turned off (enabled)
under the following
speed conditions.
1) Servo motor speed:
50 r/min or less
2) Linear servo motor
speed: 50 mm/s or
less
3) Direct drive motor
speed: 5 r/min or
less
Check if STO
command/SS1
command of the
functional safety unit
is off (enabled). It is off (enabled). Turn on (disabled)
STO command/SS1
command of the
functional safety unit.