NSK Megatorque PS Series, Руководство пользователя

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11.3.14. Alarm E7: System Error
The Driver Unit holds the related data and settings to the Motor type with which it is combined.
(Factory set parameters)
This alarm occurs when the data on the Motor is altered or damaged from any cause.
Table 11-21: Cause and remedy for the alarm E7
Cause Remedy
(1)
Defective flash ROM on the PCB or
defective EEPROM
•
Check the following and inform us the results through NSK sales or
representative.
• The reference number of the mated Motor.
• Echoed back character strings when “?XSY [ENT]” is inputted.
[Example] XSYS1006
•
Replace the Driver Unit referring to “Appendix 4: Procedure for
Replacing the EDC Driver Unit,” if necessary.
(1) Never execute the command SI during occurrence of this alarm. It is dangerous because the
factory set parameters for the wrong Motor type may be set.
11.3.15. Alarm E8: Interface Error
The Driver Unit incorporates several printed circuit boards inside.
This alarm occurs when an error is detected on the printed circuits board for the control inputs
and outputs.
Table 11-22: Cause and remedy for the alarm E8
Cause Remedy
(1) Defective Driver Unit
•
If a reset of the power does not solve the problem, the Driver Unit
may be defective. Replace it referring to “Appendix 4: Procedure
for Replacing the EDC Driver Unit,” if necessary.
11.3.16. Alarm E9: ADC Error
The Driver Unit checks the current detecting circuit when activating the Motor servo.
This alarm reports that an error is on the A/D converter, a component of the current detecting
circuit.
Table 11-23: Cause and Remedy for the alarm E9
Cause Remedy
(1)
The circuits for the main power
supply and current detection may be
damaged by serge current due to
lightning.
•
If a reset of the power does not solve the problem, the Driver Unit
may be defective. Replace it referring to “Appendix 4: Procedure
for Replacing the EDC Driver Unit,” if necessary.