11-24
11-4 Troubleshooting
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
11
Error and Maintenance
83 0 Communications error
Failures to correctly receive the data
to be received in the
MECHATROLINK-II communications
cycle continued in series more often
than the value set on the
Communications Control (Pn800).
• Check if there is a broken
MECHATROLINK-II
communications cable or a wiring
problem.
• Check if the Terminating Resistor
is connected correctly.
• Check if there is excessive noise
on the MECHATROLINK-II
communications cable. Review the
routing of the MECHATROLINK-II
communications cable and the FG
wiring. Attach a ferrite core to the
MECHATROLINK-II
communications cable.
• Set a larger value for the
continuous communications error
detection times in Communications
Control (Pn800).
84
0
Transmission cycle
error
Failed to receive synchronization
frames (SYNC) according to the
transmission cycle while the
MECHATROLINK-II communications
connection was established.
• An error occurred in the
synchronization frames.
• The transmission cycle of the
synchronization frames does not
accord with the setting (including
missing frames).
• Check if the transmission cycle of
the synchronization frames sent
from the host controller is normal,
not changed, and accords with the
setting.
• Check if there is a broken
communications cable or a wiring
problem.
• Check if there is excessive noise
on the communications cable.
• Check if the Terminating Resistor
is connected correctly.
• Review the routing of the
communications cable and the FG
wiring.
• Attach a ferrite core to the
communications cable.
4 SYNC_SET error
In the asynchronous
MECHATROLINK-II communications
state (PHASE2), a communications
error occurred while the SYNC_SET
command was executed.
3 Synchronization error
An error occurred while
synchronization was established.
• Turn OFF the power once, and turn
it ON again.
•
If the alarm is displayed even after the
power is turned ON again, the system
may be faulty. Stop using the system,
and replace the Servomotor and/or the
Servo Drive.
•
Return the Servo Drive to the dealer
that it was purchased from and ask for
investigation and repair.
Alarm
number
Name Cause Measures
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