Download MR-J4 Servo amplifier INSTRUCTION MANUAL

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: 46
Alarm content
Detail
Detail name
No.
46.1
Abnormal
temperature of
servo motor 1
Name: Servo motor overheat
The servo motor overheated.
Cause
(1) Ambient temperature of Check the ambient
the servo motor has
temperature of the
exceeded 40 ˚C.
servo motor.
(2) Servo motor is
overloaded.
(3)
46.2
Abnormal
temperature of
servo motor 2
(1)
(2)
46.3
Thermistor
disconnected
error
(1)
Thermistor
circuit error
46.5
Abnormal
temperature of
servo motor 3
Abnormal
temperature of
servo motor 4
46.6
Check the effective
load ratio.
Check result
It is over 40 ˚C.
It is less than 40 ˚C.
The effective load
ratio is high.
The effective load
ratio is small.
The thermal sensor in
Check the servo motor The servo motor
the encoder is
temperature when the temperature is low.
malfunctioning.
alarm occurs.
Ambient temperature of Check the ambient
It is over 40 ˚C.
the linear servo motor
temperature of the
or direct drive motor
linear servo motor or It is less than 40 ˚C.
has exceeded 40 ˚C.
direct drive motor.
The linear servo motor Check the effective
The effective load
or direct drive motor
load ratio.
ratio is high.
has been under
overload status.
The effective load
ratio is small.
A thermistor wire is not Check the thermistor It is not connected.
connected.
wire.
It is connected.
(2) The encoder cable MRENECBL_M-H for HFJP series servo motors
is used for the HGJR22K1M(4) servo
motor.
(3) The thermistor wire is
disconnected.
46.4
Check method
Check the model of
the encoder cable.
Check the thermistor
wire.
(1) A thermistor circuit of
the servo amplifier is
malfunctioning.
Replace the servo
amplifier, and then
check the
repeatability.
Check it with the check method for [AL. 46.1].
(1) A current was applied to Check the effective
the servo amplifier in
load ratio.
excess of its continuous
output current.
1 - 53
Action
Lower the ambient
temperature.
Check (2).
Reduce the load or
review the operation
pattern.
Check (3).
[A]
[B]
[WB]
[RJ010]
Replace the servo
motor.
Lower the ambient
temperature.
Check (2).
[A]
[B]
[WB]
Reduce the load or
review the operation
pattern.
Replace the servo
motor.
Connect it correctly.
Check (2).
MR-ENECBL_M-H
is used.
Change it to MRENECBL_M-H-MTH.
MR-ENECBL_M-HMTH is used.
Check (3).
It is disconnected.
Repair the lead wire.
It is not
disconnected.
It is not repeatable.
Replace the servo
motor.
Replace the servo
amplifier.
The effective load
ratio is high.
Target
Reduce the load or
review the operation
pattern. Or use a
larger capacity
motor.
[A]
[B]
[WB]
[RJ010]