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10. Troubleshooting
10 - 19
Warning No.
E4
Set parameter warning:
A parameter setting was outside the setting range.
This is displayed as "S51 parameter error ####" on the NC screen. ####: Error parameter No.
Cause of occurrence Investigation items Remedy
1
Parameter settings exceed the setting
range.
Check the setting range of the error
parameter No.
Correctly set.
Warning No.
E6
Control axis detachment warning:
Control axis detachment was commanded.
Cause of occurrence Investigation items Remedy
1
This indicates that the control axis removal was commanded from the NC.
Warning No.
E7
In NC emergency stop state:
Emergency stop was input from the CNC.
Cause of occurrence Investigation items Remedy
1 The NC emergency stop was input.
This is the state in which the NC emergency stop is correctly input.
2
An alarm is occurring with another drive
unit.
Check whether an alarm is occurring in
another drive unit.
Reset the alarm in the other drive unit.
3
Emergency stop cannot be reset. Check that the terminator or battery unit
is connected, and that the cable between
the drive unit is not disconnected.
Correctly connect.
Warning No.
E9
Instantaneous power interruption warning:
The power was momentarily interrupted.
Cause of occurrence Investigation items Remedy
1
The control power input was cut off.
Check the control power (24V) input. Correctly the faulty sections.
2
CPU peripheral circuit operation is
incorrect.
Check for abnormalities in the unit's
surrounding environment, etc.
(Example: Ambient temperature, noise,
grounding)
Improve the surrounding environment.
Warning No.
EA
In external emergency stop state:
External emergency stop signal was input.
Cause of occurrence Investigation items Remedy
1
External emergency stop input.
This is the state in which only the external emergency stop was input without the NC
emergency stop input.