Remedies For Warnings - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

6. TROUBLESHOOTING
Display Name
52 Error excessive
8A USB
communication
time-out error
8E USB
communication
error
888 Watchdog

6.3 Remedies for warnings

CAUTION
If E6, E7 or E9 occurs, the servo-off status is established. If any other warning occurs, operation can be
continued but an alarm may take place or proper operation may not be performed.
Remove the cause of warning according to this section. Use MR Configurator to refer to a factor of warning
occurrence.
Display Name
92 Battery cable
disconnection
warning
96 Home position
setting warning
9F Battery warning Voltage of battery for
Definition
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
If an absolute position counter warning (E3) occurred, always make home position
setting again. Otherwise, it may cause an unexpected operation.
POINT
When any of the following alarms has occurred, do not resume operation by
switching power of the servo amplifier off/on repeatedly. The servo amplifier and
direct drive motor may become faulty. If the power of the servo amplifier is
switched off/on during the alarms, allow more than 30 minutes for cooling before
resuming operation.
Excessive regenerative warning (E0)
Overload warning 1 (E1)
Direct drive motor overheat (E2)
Definition
Absolute position 1. Battery cable is open.
detection system
2. Battery voltage supplied from the
battery voltage is low.
servo amplifier to the encoder fell to
about 3V or less.
(Detected with the encoder)
3. An absolute position storage unit is
not connected.
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
1. Battery voltage fell to 3.2V or less.
absolute position (Detected with the servo amplifier)
detection system
2. Battery deteriorated and its voltage
reduced.
fell.
(Detected with the encoder)
3. An absolute position storage unit is
not connected.
Cause
Cause
Repair the cable or replace the battery.
Replace the battery.
Connect the absolute position storage unit.
Replace the battery.
Connect the absolute position storage unit.
6 - 6
Action
Action