Omron OMNUC G5 R88M-K series User Manual page 418

11-4 Troubleshooting
Alarm
Error conditions
number
90 CONNECT error
91 SYNC command error
92 Encoder data
restoration error
ABS
11
11-25
Status when error
occurs
Occurs when the
operation starts up.
Occurs when the
operation starts up.
Occurs when the power is
turned ON
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Cause
• A communications • Wire the
error occurred when a
MECHATROLINK-II
communications
CONNECT command • Connect the
is received.
• Confirm the
• During asynchronous • Confirm the command
MECHATROLINK-II
communications, a
synchronous type of
command was issued.
• In semi-closing control, • Apply the correct
initialization of internal
position data is not
processed correctly. • Install the motor power
• Connect the shield
• In FULL CLOSING • Apply the correct
CONTROL mode,
initialization of internal
position data is not
processed correctly.
• Install the motor power
• Connect the shield
Measures
MECHATROLINK-II
communications cable
correctly.
Terminating Resistor
correctly.
MECHATROLINK-II
communications cable
do not have excessive
noise. Mount a ferrite
core to the
communications cable.
sent by the host
controller.
power voltage for the
long encoder wire.
line separately from the
encoder wire.
cable to FG.
power voltage for the
long connection cable
for the external
encoder.
line separately from the
encoder wire.
cable to FG.