Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

Page: 312 / 500

13. USING A LINEAR SERVO MOTOR
13 - 63
Alarm No.16 Name: Encoder initial communication error 1 Stop method: Corresponding axis stops
Alarm description Error occurs in the communication between the linear encoder and the servo amplifier.
Display Name Cause Checkpoint Finding Action
16.5 (1) Encoder cable is faulty. Check the shield. Problem found. Repair the cable.
No problem found. Check (2).
Encoder
transmission data
error 1
(2) Fault is generated from
the surrounding
environment.
Check for noise, and
other factors. Problem found. Take countermeasure
according to the
cause.
No problem found. Check (3).
(3) Encoder is faulty. Replace the servo motor
and check the
reproducibility of the error. Error is not
reproduced. Replace the servo
motor.
16.6 (1) Encoder cable is faulty. Examine checkpoints described in the alarm display "16.5". Encoder
transmission data
error 2
(2) Fault is generated from
the surrounding
environment.
(3) Encoder is faulty.
16.7 (1) Encoder cable is faulty. Examine checkpoints described in the alarm display "16.5". Encoder
transmission data
error 3
(2) Fault is generated from
the surrounding
environment.
(3) Encoder is faulty.
Alarm No.17 Name: Board error Stop method: All axes stop
Alarm description Interior part of the servo amplifier is faulty.
Display Name Cause Checkpoint Finding Action
17.1 AD converter
error
Same as for the rotary servo motor.
Refer to section 8.3.
17.2 Current feedback
data error
17.3 Custom IC error
17.4 Amplifier
detection signal
error
17.5 Rotary switch
error
17.6 DIP switch error
Alarm No.19 Name: Memory error 3 (Flash-ROM) Stop method: All axes stop
Alarm description Interior part of the servo amplifier (FLASH-ROM) is faulty.
Display Name Cause Checkpoint Finding Action
19.1 Flash-ROM error
1
Same as for the rotary servo motor.
Refer to section 8.3.
19.2 Flash-ROM error
2