Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

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16. INDEXER POSITIONING OPERATION
Display Name Definition Cause Action
A92 Open battery
cable warning
Absolute position
detection system battery
voltage is low. 1. Battery cable is open. Repair cable or changed.
2. Battery voltage supplied from the servo
amplifier to the encoder fell to about 3V or
less.
(Detected with the encoder)
Change the battery.
3. An encoder cable was disconnected. Repair or replace the encoder
cable.
A96 Home position
setting error
Home position setting
could not be made. 1. Out of in-position range at home
positioning.
Make home position setting
within the in-position range.
2. Position command was inputted during
the home position setting.
Input position command after
home positioning.
3. Creep speed high. Reduce creep speed.
A97 Next station
warning
Automatic operation was
executed with invalid
next station setting. 1. Automatic operation has been started
when the station No. exceeding the
setting value of parameter No.PC46
(number of stations/rotation) is specified.
Specify the station number up to
the maximum number of
stations set in parameter
No.PC46 (indexer positioning
operation number of
stations/rotation).
2. Automatic operation has been started
when the next station selection 1 to 8
(RYnA to RYnE, and RY(n 2)3 to
RY(n 2)5) are all set to on.
A99 Stroke limit
warning
The limit switch of
command rotation
direction (LSP or LSN)
was turned off.
The forward rotation stroke end (LSP) was
turned off during forward rotation.
Reexamine the travel range not
to turn off LSP/LSN.
The reverse rotation stroke end (LSN) was
turned off during reverse rotation.
A9D CC-Link warning
1
The station number
switch or baud rate
switch position was
changed from the setting
at power-on. 1. The station number switch position was
changed from the setting at power-on.
Restore to the setting at the
time of power on.
2. The baud rate switch position was
changed from the setting at power-on.
3. The occupied station count switch position
was changed from the setting at power-
on.
A9E CC-Link warning
2
Communication error of
cable. 1. The transmission status is abnormal. Take measures against noise.
2. Incorrect wiring of CC-Link twisted cable 1. Change the CC-Link twisted
cable.
2. Connect the cable or
connector correctly.
3. CC-Link twisted cable faulty.
4. The CC-Link connector has come off.
5. The termination resistor is not connected. Connect the termination resistor
correctly.
6. Noise entered the CC-Link twisted cable.
A9F Battery warning Voltage of battery for
absolute position
detection system
reduced.
Battery voltage fell to 3.2V or less.
(Detected with the servo amplifier)
Change the battery.
AE0 Excessive
regenerative
warning
Regenerative power may
exceed the permissible
regenerative power of
the built-in regenerative
resistor or the
regenerative option. Regenerative power increased to 85% of the
permissible regenerative power of the built-in
regenerative resistor or regenerative option.
<Check method>
Call the status display and check
regenerative load ratio.
1. Reduce frequency of
positioning.
2. Change the regenerative
option to the one with larger
capacity.
3. Reduce load.
4. Change the servo
amplifier/servo motor to the
one with larger capacity.
AE1 Overload warning
1
Overload alarm 1 or 2
may occur. Load increased to 85% or more of the
overload alarm 1 or 2 occurrence level. Refer to overload 1 (A50) and
overload 2 (A51).