Mitsubishi Electric C70 Setup Manual page 604

Warning No.
Set parameter warning
E4
An incorrect parameter was detected among the parameters received from the CNC.
Investigation details
1 Check the error parameter No.
2 Check the spindle control input 4/bit 0 to 2.
Warning No.
Control axis detachment warning
E6
Control axis detachment was commanded.
Investigation details
1 The status in which removal of the control axis was commanded from the NC is indicated.
Warning No.
In NC emergency stop state
E7
Emergency stop was input from the CNC.
Investigation details
Check if the emergency stop is applied on
1
the NC side.
2 Cancel the emergency stop.
Check whether an alarm is occurring in
3
another drive unit.
4 Turn the power of NC and 200VAC (400V) ON again
Warning No.
Instantaneous power interruption warning
E9
The power was momentarily interrupted.
Investigation details
1 Check the alarm No. "71" items.
Warning No. In external emergency stop state
EA External emergency stop signal was input.
Investigation details
Check whether the specifications allow use
1
of the external emergency stop.
Measure the input voltage of the CN23
2 connector. (While emergency stop is
cancelled.)
Warning No.
Power supply: Over regeneration warning
EB
Over-regeneration detection level exceeded 80%.
Investigation details
1 Check the alarm No. "73" items.
Warning No. Power supply: Fan stop warning
EE A cooling fan built in the power supply unit stopped.
Investigation details
1 Check the alarm No. "72" items.
Investigation results
SV001 to SV256
SP001 to SP256
Selected other than 000, 001, 010 and 100
when the alarm occurred.
Investigation results
Investigation results
The emergency stop is applied.
The emergency stop is cancelled.
Normally starts up.
"E7" remains displayed.
An alarm is occurring in another drive unit.
An alarm is not occurring.
Investigation results
Investigation results
Use is not allowed.
Use is allowed.
24V is input.
24V is not input.
Investigation results
Investigation results
Appendix 2.16 Troubleshooting
Remedies
Set the value within the designated setting
range.
Correctly select.
Remedies
Remedies
Check the investigation item No. 2.
Check the investigation item No. 3.
Normal.
Check the investigation item No. 3.
Reset the alarm in the other drive unit.
Check the investigation item No. 4.
Remedies
Remedies
Invalidate the external emergency stop.
Check the investigation item No. 2.
Replace the power supply unit.
Check whether the external emergency stop
cable is broken, or check the external
contact operation.
Remedies
Remedies
C70 Setup Manual
SV SP
SV SP
SV SP
CV
CV
CV
CV
587