Instruction manual

7 - 4
7. TROUBLESHOOTING
Display Name Definition Cause Action
1. The speed of linear encoder has
exceeded the range of use.
Change the speed of linear encoder within
the range of use.
2. Noise entered. Take the noise reduction measures.
3. Alarm of the linear encoder Contact with the linear encoder
manufacturer.
2A Linear encoder
error 1
An alarm is output
from the linear
encoder.
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 Overvoltage
34 Receive error
1
35 Command
frequency
alarm
36 Receive error
2
37 Parameter
error
Refer to Chapter 8 of the MR-J3-
B Servo Amplifier Instruction Manual.
1. Linear encoder signal resolution is
different from the setting value.
Review the settings of parameter No.PS02
and PS03 setting (linear encoder resolution
setting).
Check the installation of the linear encoder.
2. Initial magnetic pole detection has
not been performed.
Perform initial magnetic pole detection.
3. Mismatch of the linear encoder
installation direction.
Check the installation direction of the linear
encoder. Review the encoder pulse count
polarity selection in parameter No. PC27.
4. The position deviation exceeded the
detection level.
Review the operation condition.
Review the setting of parameter No.PS05
(linear servo motor control position
deviation error detection level) as required.
5. The speed deviation exceeded the
detection level.
Review the operation condition.
Review the setting of parameter No.PS06
(linear servo motor control speed deviation
error detection level) as required.
6. Thrust deviation exceeded the
detection level.
Review the operation condition.
Review the parameter No.PS07 setting
(linear servo motor control thrust deviation
error detection level) as necessary.
42 Linear servo
control error
Linear servo motor
control error
occurred.
7. Wrong connection of linear servo
motor.
Servo amplifier’s output terminals U,
V, W do not match with linear servo
motor’s input terminals U, V, W.
Connect correctly.
45 Main circuit
device
overheat
Refer to Chapter 8 of the MR-J3-
B Servo Amplifier Instruction Manual.