— 14-13 —
14.2.4.12. Automatic Tuning Error
[Output]
DRDY: Closed
[TA]
F8 > AT Error
[LED]
F8
[Motor Condition]
Normal Servo State
Table 14-21: Cause and Remedy: Automatic tuning error
Cause
Remedy
Terminal display
(1) System is in Servo-OFF when executing
automatic tuning.
(2) EMST or Over Travel Limit is input when
executing automatic tuning.
•
Check input signal and execute
automatic tuning again.
AT Error 1
(3) Automatic tuning cannot be executed due to
unbalanced load.
•
Check the load condition.
•
Set parameters manually.
AT Error 2
(4) Automatic tuning cannot be executed due to
excessive load.
AT Error 3
(5) Resonant vibration occurs due to low rigidity
of the load or the mounting base.
•
Check the load or the mounting
base. Increase rigidity.
•
Set parameters manually.
AT Error 4
14.2.4.13. RS-232C Error
u
When parameter is SE “0,”
[Output]
DRDY: Close
[TA]
C2>RS232C Error
[LED]
C2
[Motor condition]
Normal
u
When parameter is SE “1,”
[output]
DRDY: Open
[TA]
C2>RS232C Error
[LED]
C2
[Motor condition]
Servo lock
Table 14-22: Cause and remedy: RS-232C error
Cause
Remedy
(1) Connect or disconnect the communication
cable with power on.
•
Connect or disconnect the communication cable
when the power is off.
(2) Attempted to transmit large volume of data
without the flow control by CTS or RTS
command.
•
Wire CTS and RTS signal and apply the flow control.
(3) Wrong Baud rate is set to the terminal.
•
Set Baud rate to 9 600 bps.
(4) Defective RS-232C communication.
•
Replace Driver Unit.
◊
Standard ESA Driver --------------------[Appendix 4]
Note : 1) Parameter SE can set DRDY output and condition of Motor servo when RS-232C
communication is abnormal. Refer to “12. Command and Parameter.”
2) RS-232C error may be cleared by input of CLR or CL command.
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