Mitsubishi Electric MELDAS MDS-B Series Instruction Manual page 188

Overload warning:
Alarm No.
An level 80% of the overload alarm 1 was detected.
E1
Investigation details
1 Check whether the motor is hot.
2 Check whether there is a problem
during acceleration/deceleration
operation.
Parameter error warning:
Alarm No.
A parameter exceeding the setting range was set.
E4
Investigation details
1 Set the correct values following the
parameter adjustment procedures.
CNC emergency stop:
Alarm No.
An emergency stop signal is being sent from the CNC, or an alarm is occurring in
E7
another axis.
Investigation details
1 Check whether the CNC side
emergency stop switch has been
applied.
2 Cancel the emergency stop.
3 Check whether the terminator or battery
unit is connected, or whether these are
loose.
CAUTION
Chapter 11 Troubleshooting
Investigation results
The motor is not hot.
The motor is hot.
Operation is possible without problem.
There is a problem in the operation.
Investigation results
Investigation results
The emergency stop state is entered.
Emergency stop has been canceled.
Operation starts normally.
"E7" remains displayed.
Pinpoint the cause of the fault.
Normal
To prevent trouble, when changing the motor and driver combination, avoid
driving a driver with a larger capacity than the specified driver using the motor.
The motor could be demagnetized. Note that this combination can be used for
checking in the emergency stop state. A driver with a capacity smaller than the
specifications can be driven with the motor.
Check the alarm No. "50" items.
Investigate item 2.
1. If possible, ease the operation pattern.
2. If an alarm does not occur with
Check investigation items 3 and following
of alarm No. "50".
Investigate item 2.
Investigate item 3.
Normal
Investigate item 3.
Correct the fault.
Check the alarm No. "34" items.
11–32
Alarm check timing
f1 f2
–
Remedies
continued operation, continue in this
state.
Alarm check timing
f1 f2
–
Remedies
Alarm check timing
f1 f2
–
Remedies
f3 f4
f3 f4
–
f3 f4