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6. TROUBLESHOOTING
6 - 6
Display Name Definition Cause Action
52 Error excessive Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
8A USB
communication
time-out error
8E USB
communication
error
888 Watchdog
6.3 Remedies for warnings
CAUTION
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)
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 Definition Cause Action
92 1. Battery cable is open. Repair the cable or replace the battery.
Battery cable
disconnection
warning
Absolute position
detection system
battery voltage is low.
2. Battery voltage supplied from the
servo amplifier to the encoder fell to
about 3V or less.
(Detected with the encoder)
Replace the battery.
3. An absolute position storage unit is
not connected.
Connect the absolute position storage unit.
96 Home position
setting warning
Refer to chapter 8 of the MR-J3- B Servo Amplifier Instruction Manual.
9F 1. Battery voltage fell to 3.2V or less.
(Detected with the servo amplifier)
2. Battery deteriorated and its voltage
fell.
(Detected with the encoder)
Replace the battery.
Battery warning Voltage of battery for
absolute position
detection system
reduced.
3. An absolute position storage unit is
not connected.
Connect the absolute position storage unit.