Mitsubishi Electric MR-J3-B-RJ006, Instruction Manual

Page: 142 / 166

6 - 3
6. TROUBLESHOOTING
Display Name Definition Cause Action
Linear encoder
error 2 1. The temperature of linear encoder is
high.
Check the temperature of linear encoder and
contact with the linear encoder
manufacturer. 28 Working
environment of linear
encoder is not
normal.
2. The signal level of linear encoder
has dropped.
Check the installation of the linear encoder.
Linear encoder
error 1 1. The speed of linear encoder has
exceeded the range of use.
Change the speed of linear encoder within
the range of use. An alarm is output
from the linear
encoder.
2. Noise entered. Take the noise reduction measures.
3. Alarm of the linear encoder Contact with the linear encoder
manufacturer.
2A
4. Defective installation positions of the
scale and head
Adjust the positions of the scale and head.
30 Regenerative
error
31 Overspeed
32 Overcurrent
33
Overload
34
Receive error 1
35
Command
frequency error
36
Receive error 2
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
1. Servo amplifier fault caused the
parameter setting to be rewritten.
Change the servo amplifier.
2. There is a parameter whose value
was set to outside the setting range
by the controller.
Change the parameter value to within the
setting range.
37 Parameter error Parameter setting is
wrong.
3. The number of write times to EEP-
ROM exceeded 100,000 due to
parameter write, etc.
Change the servo amplifier.
A fully closed loop
control error has
occurred. 1. The resolution of the load side
encoder differs from the setting
value.
Review the settings of parameter No.PE04,
PE05 (fully closed loop control feedback
pulse electronic gear).Check the installation
of the load side encoder.
2. Mismatch of the load side encoder
installation direction
Check the installation direction of the load
side encoder.Review the encoder pulse
count polarity selection in parameter No.
PC27.
3. The position deviation exceeded the
detection level.
Review the operation conditions.Review the
setting of parameter No.PE07 (fully closed
loop control position deviation error
detection level) as required.
42
Fully closed loop
control error
detection
4. The speed deviation exceeded the
detection level.
Review the operation conditions.Review the
setting of parameter No.PE06 (fully closed
loop control speed deviation error detection
level) as required.
45 Main circuit
device overheat
46 Servo motor
overheat
47 Cooling fan
alarm
50 Overload 1
51 Overload 2
52 Error excessive
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.