TROUBLE SHOOTING
8 CHAPTER 3
3.4 SERVO CONTROLLER
In the following table a list of troubleshooting is shown of the servopack.
TABLE 3.3 TROUBLESHOOTING SERVO CONTROLLER
ALARM DESCRIPTION CAUSE REMEDY
A.02
EEPROM data of servopack is abnormal *²
Power turned OFF during parameter
write. Alarm occurred at next power ON
• Initialize parameters using Fn005
then reenter settings
• Replace the servopack
Circuit board (1PWB) defective Replace the servopack
A.03 Detection data for power circuit is
abnormal
Circuit board (1PWB or 2PWB) defective Replace servopack
A.04 The parameter setting is outside the
allowable setting range *
²
An out-of-range parameter was
previously set or loaded
• Reset all parameters in the range
• Otherwise, reload the correct
parameter
Circuit board (1PWB) is defective Replace the servopack
A.05 Servopack and servomotor capacities do
no match each other
The range of servomotor capacities that
can be combined has been exceeded
Replace the servomotor so that an
acceptable combination is achieved
Encoder parameters have not been
written properly
Replace the Servomotor
A.10 An overcurrent flowed through the IGBT
Heat sink of servopack was overheated *
²
Shorted wiring between servopack and
servomotor
Check and correct wiring
Shorted servomotor U, V, or W phase Replace Servomotor
• Defective circuit board (1PWB)
• Defective power transistor
Replace servopack
Defective current feedback circuit, power
transistor, DB circuit, or circuit board
Replace servopack
Ambient temperature of the servopack
greater than 55°C
Alter conditions so that the ambient
temperature is below 55°C
Inadequate air flow around the heat sink Providing sufficient space as specified
Fan stopped Replace servopack
Servopack is operating under an overload Reduce load
A.30 • Regenerative circuit is faulty
• Regenerative resistor is faulty
Malfunctioning regenerative transistor Replace servopack
Regenerative resistor is open Replace servopack or regenerative
resistor
Disconnected regenerative unit
(for an external regenerative resistor)
Check the wiring of the external
regenerative resistor
Defective servopack Replace servopack
A.32 Regenerative energy exceeds
regenerative resistor capacity.
Regenerative power exceeds the limit Use an external regenerative resistor that
matches the regenerative power capacity
Alarm occurs although an external
regenerative resistor is used and the
temperature rise of the regenerative
resistor is small
Correct parameter Pn600
To Next Page
Loading...
