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

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1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 97
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
95.1 STO1 off
detection
(1) STO1 is not inputted
correctly.
Check if the STO1 of
CN8 connector is
wired correctly. It is not wired
correctly. Wire it correctly.
(When not using the
STO function, attach
the short-circuit
connector came with
the servo amplifier to
CN8.) [A]
[B]
[WB]
[RJ010]
[GF]
It is wired correctly. Check (2).
(2) STO1 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 STO1 is off
(enabled). It is off (enabled). Turn on STO1
(disabled).
95.2 STO2 off
detection
(1) STO2 is not inputted
correctly.
Check if the STO2 of
CN8 connector is
wired correctly. It is not wired
correctly. Wire it correctly.
(When not using the
STO function, attach
the short-circuit
connector came with
the servo amplifier to
CN8.)
It is wired correctly. Check (2).
(2) STO2 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 STO2 is off
(enabled). It is off (enabled). Turn on STO2.
95.3 STO warning 1
(safety
observation
function)
(1) "Input device - Fixing-
diagnosis execution
selection at start-up"
was not executed.
Check if "Input device
- Fixing-diagnosis
execution selection at
start-up" was
executed. It was not executed. Execute it. [A]
[B]
[GF]
It was executed. Check (2).
(2) Set "Input device -
Fixing-diagnosis
execution selection at
start-up" correctly using
parameters.
Check if [Pr. PSD27]
and [Pr. PSD28] are
set correctly. It is not set
correctly. Review the
parameter.
It is set correctly. Check (3).
(3) The wiring is incorrect. Check if the wiring has
a failure.
It has a failure. Review the wiring.
It has no failure. 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.