Omron OMNUC G5 R88M-K series User Manual page 416

11-4 Troubleshooting
Alarm
Error conditions
number
44 Absolute encoder 1-turn
counter error
45 Absolute encoder multi-
rotation counter error
ABS
47 Absolute encoder
status error
48 Encoder phase-Z error Occurs during operation.
49 Encoder PS signal error Occurs during operation.
50 External encoder
communications error
51 External encoder status
error
11
55 Phases-A, B and Z
connection error
82 Node address setting
error
11-23
Status when error
occurs
Occurs when the power
ABS
supply is turned ON.
Occurs when the power
supply is turned ON.
Occurs when the power
supply is turned ON.
ABS
Occurs during operation.
Occurs during operation.
Occurs during operation.
Occurs when the power is
turned on.
OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Cause
• The encoder is faulty. • Replace the
• The encoder is faulty. • Replace the
• The motor was moving • Do not let the motor
when the power supply
was turned ON.
• A phase Z pulse from • Replace the
the encoder was not
detected regularly.
• A logic error was • Replace the
detected in the PS
signal from the encoder.
• The disconnection • Wire correctly.
detection function was • Fix the locations that
activated because
communications
between the external
encoder and drive
were interrupted.
• There was a • Provide the required
communications error
in data from external
encoder. • Wire correctly.
• Connect the shield to
• An external encoder • Check the external
error code was
detected. • From the front panel,
• A disconnection or • Check the connection.
other error was
detected in external
encoder phase A,
phase B, or phase Z
connection.
• The node address set • Set the rotary switches
by the rotary switches
on the Drive exceeded
the setting range.
Measures
Servomotor.
Servomotor.
move when the power
supply is turned ON.
Servomotor.
Servomotor.
are disconnected.
external encoder
power supply voltage.
FG.
encoder specifications.
clear the external
encoder error, then
turn the power supply
OFF, then ON again.
for node address
setting correctly. Turn
on the control power
again.