Mitsubishi Electric Q172CPU - Page 589

APP - 28
APPENDICES
(3) Absolute position system errors (1200 to 1299)
These errors are detected at the absolute position system.
The error codes, causes, processing and corrective actions are shown in Table
2.11.
Table 2.11 Absolute position system error (1200 to 1299) list
Control mode
Error
code
Control program
Axis designation program (positioning)
JOG Manual pulse generator Home position return OSC
Error cause
Error
processing
Corrective action
1201
• A sum check error occurred with the backup data
in the controller at the turning on servo amplifier
power supply.
• Home position return was not performed.
• CPU module battery error.
• Home position return started but did not complete
normally.
Home
position
return
request ON
• Check the battery and execute
a home position return.
1202
• A communication error between the servo
amplifier and encoder occurred at the turning on
servo amplifier power supply.
Home
position
return
request
ON, servo
error [2016]
set.
• Check the motor and encoder
cables and execute a home
position return again.
1203
• The amount of change of the encoder current
value became the following expression during
operation: "Amount of change in encoder current
value/3.5[ms] > 180° of motor revolution"
A continual check is performed (both of servo ON
and OFF states) after the servo amplifier power
has been turned ON.
1204
• The following expression holds: "Encoder current
value [PLS]
feedback current value [PLS]
(encoder effective bit number)" during operation.
A continual check is performed (both of servo ON
and OFF states) after the servo amplifier power
has been turned on.
Home
position
return
request ON
(Note-1)
• Check the motor and encoder
cables.
(Note-1) : SW5RN-SV43Q (Ver.00D or later )