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11-15
11-4 Troubleshooting
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
11
Error and Maintenance
50
External scale
communications error
Occurs during operation.
• The disconnection detection
function was activated
because communications
between the external scale
and driver were interrupted.
• Wire correctly.
• Fix the locations that
are disconnected.
• There was a
communications error
in data from external
scale.
• Provide the required external
scale power supply voltage.
• Wire correctly.
• Connect the shield to FG.
51
External scale status
error
Occurs during operation.
• An external scale error
code was detected.
• Check the external
scale specifications.
• From the front panel, clear
the external scale error,
then turn the power supply
OFF, then ON again.
55
Phases-A, B and Z
connection error
Occurs during operation.
• A disconnection or
other error was
detected in external
scale phase A, phase B,
or phase Z connection.
• Check the connection.
87
Forced alarm input error Occurs during operation.
• The forced alarm input
signal was input.
• Turn OFF the EMG-
STOP signal.
95
Motor non-conformity
Occurs when the power
supply is turned ON.
• The motor and driver
combination is incorrect.
• Use a correct
combination.
• The encoder wiring is
disconnected.
• Wire the encoder wiring.
• Fix the locations that
are disconnected.
Alarm
display
Error conditions
Status when error
occurs
Cause
Measures