NSK MEGATORQUE MOTOR SYSTEM, User Manual

Page: 42 / 44

4. Alarm and Warning
— 4-2 —
4.1.2. C5: Fieldbus Warning
This warning reports an error in the fieldbus that is recoverable.
◊
The warning reports the error in setting of station number or the baud rate, and the line breakage
of the fieldbus board.
Table 4-3: Status when the fieldbus warning
7 seg
LED
Command TA:
Tell Alarm Status
Warning/Alarm Motor state
DRDY
output WRN
output
OTPA
OTMA
output
History Clear
C5
C5>Fieldbus
warning
Fieldbus warning
Cycle stop *1
- 1 -
○ ○
*1: If the motor is rotating when the warning is reported, it stops
after the executing cycle is completed.
The table below shows the history of alarm occurence read out by the command TA/HI (Tell
alarm history) and their remedy.
Table 4-4: Cause and remedy of fieldbus warning
Alarm history Cause Remedy
C5
－
0
Station number setting error
May be caused an error in station number
setting or a defective station number setting
switch.
•
Set the station number (1 to 64) collectry and remake the power.
•
If the above remedy does not work, the Driver Unit is defective.
Follow the “Appendix 4: Procedure Manual to replace the EDC Driver Unit”.
C5
－
1
C5
－
2
May be caused by
•Baud rate setting error,
• Setting error in transmission speed,
or
• A defective transmission speed setting
switch.
•
Reset the (0 to 4) collectly and turn the power on.
•
The Driver Unit may be defective if the alarm occurs again after the reboot
of the system. Follow the “Appendix 4: Procedure manual for replacing the
EDC Driver Unit Raplacing”.
C5
－
3
Time over errror
The communication between the master
controller is disconnected.
•
Please check if the connector is droped off, or the communication cable is
broken.
(1) Input of ACLR( Alarm clear), or Command CL (Alarm clear) clears the warning .