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MDS-D-SVJ3/SPJ3 Series Instruction Manual
6-3 Troubleshooting
Warning No.
E1
Overload warning
Overload detection level exceeded 80%.
Investigation details Investigation results Remedies SV SP
1 Check if the motor is hot.
Motor is hot. Check the alarm No. "50" items.
Motor is not hot. Check the investigation item No. 2.
2
Check if an error occurs when execut-
ing acceleration/deceleration opera-
tion.
Error is not found in operation. Thus,
operation is possible.
Ease the operation patter, if possible.
If no alarm occurs, operation can be
continued as it is.
Error is found in operation.
Check the investigation item 3 or later
of Alarm No. 50.
3 Check the alarm No. "50" items.
Warning No.
E4
Set parameter warning
An incorrect parameter was detected among the parameters received from the CNC.
Investigation details Investigation results Remedies SV SP
1 Check the error parameter No.
SV001 to SV256
SP001 to SP256
Set the value within the designated
setting range.
2
Check the spindle control input 4/bit 0
to 2.
Selected other than 000, 001, 010 and
100 when the alarm occurred.
Correctly select.
Warning No.
E6
Control axis detachment warning
Control axis detachment was commanded.
Investigation details Investigation results Remedies SV SP
1 The status in which removal of the control axis was commanded from the NC is indicated.
Warning No.
E7
In NC emergency stop state
Emergency stop was input from the CNC.
Investigation details Investigation results Remedies SV SP
1
Check if the emergency stop is applied
on the NC side.
The emergency stop is applied. Check the investigation item No. 2.
The emergency stop is cancelled. Check the investigation item No. 3.
2 Cancel the emergency stop.
Normally starts up. Normal.
"E7" remains displayed. Check the investigation item No. 3.
3
Check whether an alarm is occurring
in another drive unit.
An alarm is occurring in another drive
unit.
Reset the alarm in the other drive unit.
An alarm is not occurring. Check the investigation item No. 4.
4 Turn the power of NC and 200VAC (400V) ON again
Warning No.
E9
Instantaneous power interruption warning
The power was momentarily interrupted.
Investigation details Investigation results Remedies CV
1 Check the alarm No. "71" items.
Warning No.
EA
In external emergency stop state
External emergency stop signal was input.
Investigation details Investigation results Remedies CV
1
Check whether the specifications al-
low use of the external emergency
stop.
Use is not allowed.
Invalidate the external emergency
stop.
Use is allowed. Check the investigation item No. 2.
2
Measure the input voltage of the CN23
connector. (While emergency stop is
cancelled.)
24V is input. Replace the power supply unit.
24V is not input.
Check whether the external emergen-
cy stop cable is broken, or check the
external contact operation.