Appendices
A-94
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
A-3 Sysmac Error Status Codes
This section lists and describes the error event codes that you may see in Sysmac Studio. This function
is supported for unit version 2.1 or later.
The errors that may occur for this Unit are listed below. Event levels are given in the table as follows:
Maj: Major fault level
Prt: Partial fault level
Min: Minor fault level
Obs: Observation
Info: Information
Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for all of the event codes that may
occur in an NJ-series Controller.
A-3-1 Error Table
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info
04A80000 hex Control
Power
Supply
Undervoltage
The voltage
between the
positive and
negative terminals
in the control power
supply converter
dropped below the
specified value.
• Power supply undervoltage. Or,
the power supply voltage
dropped because there was
inrush current when the main
power supply was turned ON.
• A momentary power
interruption occurred.
• The Servo Drive failed.
√ page A-109
04A90000 hex Overvoltage The power supply
voltage exceeded
the allowable input
voltage range.
• The voltage between the
positive and negative terminals
in the control power supply
converter exceeded the
specified value.
• The voltage was suddenly
increased by the phase
advance capacitor or the
uninterruptible power supply
(UPS).
• The Regeneration Resistor
wiring is broken.
• The External Regeneration
Resistor is not suitable.
• The Servo Drive failed.
√ page A-110
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