Appendicies
A-94
G5 Series AC Servo Drives With Built-in EtherCAT Communications, Linear Motor Type
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
04AA0000 hex Main Circuit
Power
Supply
Undervoltage
(Undervoltag
e between
positive and
negative
terminals)
If the Undervoltage
Error Selection
(3508 hex) is set to
1, a momentary
power interruption
occurred between
L1 and L3 for longer
than the value
specified for the
Momentary Hold
Time. The voltage
between the
positive and
negative terminals
in the main power
supply converter
dropped below the
specified value
while the Servo was
ON.
• Insufficient power supply
capacity
• The electromagnetic contactor
in the main circuit power supply
was tripped.
• A momentary power
interruption occurred.
• A Servo Drive with 3-phase
input specifications was
operated with a single-phase
power supply.
• The Servo Drive failed.
page A-108
04AB0000 hex Main Circuit
Power
Supply
Undervoltage
(AC Cutoff
Detected)
If the Undervoltage
Error Selection
(3508 hex) is set to
1, a momentary
power interruption
occurred between
L1 and L3 for longer
than the value
specified for the
Momentary Hold
Time. The voltage
between the
positive and
negative terminals
in the main power
supply converter
dropped below the
specified value
while the Servo was
ON.
• Insufficient power supply
capacity
• The electromagnetic contactor
in the main circuit power supply
was tripped.
• A momentary power
interruption occurred.
• A Servo Drive with 3-phase
input specifications was
operated with a single-phase
power supply.
• The Servo Drive failed.
page A-109
04AC0000 hex Overcurrent The current flowing
through the
converter exceeded
the specified value.
• A short-circuit, line-to-ground
fault, contact failure, or
insulation failure occurred on
the U, V, or W motor line.
• The Servo Drive failed.
• The relay for the dynamic brake
has been welded due to
frequent Servo ON/OFF
operations.
• Motor windings are burned out.
• The motor is not suitable for the
Servo Drive.
• The command input timing is
the same as or earlier than the
Servo ON timing.
page A-110
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