1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 82
Alarm No.: 7D
Name: Safety observation error
Alarm content
The safety observation function detected an error.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
7D.2 Speed
observation
error
(1) The command pulse
frequency is high.
Check the command
pulse frequency.
The command pulse
frequency is high.
Check operation
pattern.
[A]
[B]
[GF]
The command pulse
frequency is low.
Check (2).
(2) The settings of the
electronic gear are
incorrect.
Check the setting
value of the electronic
gear.
The setting value is
incorrect.
Review the settings.
The setting value is
correct.
Check (3).
(3) The command from the
controller is excessive.
Check if the command
from the controller is
the SLS speed ([Pr.
PSA11] to [Pr.
PSA14]) or more.
It is over the
permissible speed.
Check operation
pattern.
It is less than the
permissible speed.
Check (4).
(4) A larger speed
command than the SLS
speed ([Pr. PSA11] to
[Pr. PSA14]) was
inputted.
Check that the actual
servo motor speed is
higher than the setting
value of the SLS
speed.
The servo motor
speed is higher than
the SLS speed.
Review the setting
value of the SLS
speed.
The servo motor
speed is lower than
the SLS speed.
Check (5).
(5) The servo system is
unstable and
oscillating.
Check if the servo
motor is oscillating.
It is oscillating.
Adjust the servo
gain. Or reduce the
load.
It is not oscillating.
Check (6).
(6) The velocity waveform
has overshot.
Check if it is
overshooting because
the acceleration time
constant is too short.
It is overshooting.
Increase the
acceleration/
deceleration time
constant.
It is not
overshooting.
Check (7).
(7)
The
connection
destination of the
encoder cable is
incorrect.
Check the connection
destination of the
encoder.
It is not correct.
Wire it correctly.
It is correct.
Check (8).
(8) The encoder or linear
encoder is
malfunctioning.
Replace the servo
motor, and then check
the repeatability.
It is not repeatable.
Replace the servo
motor.
It is repeatable.
Check (9).
(9) 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 (10).
(10) 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 (11).
(11) Something near the
device caused it.
Check the noise,
ambient temperature,
etc.
It has a failure.
Take
countermeasures
against its cause.
Alarm No.: 82
Name: Master-slave operation error 1
Alarm content
Driver communication error was detected.
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
82.1 Master-slave
operation error
1
Check it with the check method for [AL. 34.1].
[B]
(slave)
Содержание MELSERVO MR-J4-B-RJ Series
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Страница 137: ...1 TROUBLESHOOTING FOR SERVO AMPLIFIER DRIVE UNIT 1 130 MEMO ...
Страница 145: ...2 TROUBLESHOOTING FOR MR CV_POWER REGENERATION CONVERTER UNIT 2 8 MEMO ...
Страница 155: ...3 TROUBLESHOOTING FOR MR CR55K 4 RESISTANCE REGENERATION CONVERTER UNIT 3 10 MEMO ...
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