Maintenance 9. Troubleshooting
No. Message Remedy Note 1 Note 2
5011
Serial encoder communication failure.
Reboot the controller. Check the
the DMB, or the encoder IF
board.
Check the robot configuration.
Check the signal cable connection.
Replace the DMB and encoder I/F board.
5012
Servo CPU watchdog timer failure.
Check the
motor or the DMB.
Replace the DMB.
Check the noise countermeasures.
5013
Current control circuit WDT failure.
Reboot the controller.
controller.
Check the power cable connection.
Check the 15V power supply and cable
connection.
Replace the DMB.
Check the noise countermeasures.
Reboot the controller.
5016
Power supply failure of the absolute
Replace the battery.
Check the robot internal wiring.
Reset the encoder.
Check the signal cable connection.
5017
Backup data failure of the absolute
encoder. Reset the encoder.
Reset the encoder.
Check the signal cable connection.
5018 Absolute encoder battery alarm.
Replace the battery.
Check the signal cable connection.
5019
Position failure of the absolute
encoder. Reset the encoder.
Reset the encoder.
Replace the motor.
5020
Speed is too high at controller power
Stop the robot and reboot the
controller.
Reboot the controller.
5021 Absolute encoder overheat.
Wait until the temperature of the encoder
5022
R/D converter detected the error.
Check for the encoder reset resolver
board or manipulator internal wiring.
Check the signal wiring of the
manipulator (loose pin, disconnection,
Replace the resolver board.
5023
G sensor communication failure.
Check for the signal cable connection
or manipulator internal wiring.
Check the signal wiring connection.
Check the signal wiring of the
manipulator (loose pin, disconnection,
short).
Check the noise countermeasure.
Replace the control board.
5024
G sensor data error.
Check for the control board.
Replace the control board.
5025
Gap occurred between multi-turn data
and R/D conversion data.
Encoder reset.
Reset the resolver
Check the noise countermeasure.
Replace the resolver board.
5026
Resolver’
disconnected.
Reset the encoder or check for the
resolver board and manipulator
Check the signal wiring of the
manipulator (loose pin, disconnection,
short).
Replace the resolver board.
RC90 (EPSON RC+ 7.0) Rev.4
168