Delta ASDA-A2 Series User Manual page 606

Chapter 10 Troubleshooting
: Undervoltage
Potential Cause
The main circuit
voltage is below its
minimum specified
value.
No input voltage at
main circuit.
Input power error
(Incorrect power
input)
: Motor error
Potential Cause
Encoder is damaged. Check the encoder for the damage.
Encoder is loose.
The type of the
servo motor is
incorrect.
: Regeneration error
Potential Cause
Regenerative resistor
is not connected or
the value of the
regenerative resistor
is too low.
The parameter P1-53
is not set to zero
when the
regenerative resistor
is not in use.
Parameter setting is
in error
Revision September 2012
Checking Method
Check whether the wiring of main circuit
input voltage is normal.
Use voltmeter to check whether input
voltage at main circuit is normal.
Use voltmeter to check whether the input
voltage is within the specified limit.
Checking Method
Examine the encoder connector.
Check if the servo drive and servo motor
are not correctly matched for size (power
rating).
Checking Method
Check the wiring connection of
regenerative resistor.
Ensure the parameter P1-53 is set to
zero.
Confirm the parameter settings of P1-
52 and P1-53, and specifications of
regenerative resistor.
Corrective Actions
Reconfirm voltage wiring.
Reconfirm power switch.
Use correct power supply or
stabilizing power or using
series transformer.
Corrective Actions
Replace the motor.
Install the motor again.
Replace the motor.
Corrective Actions
Reconnect regenerative
resistor or calculate the value
of the regenerative resistor.
Set the parameter P1-53 to
zero when the regenerative
resistor is not in use.
Correctly reset parameter
settings and the specifications
of regenerative resistor again.
A2
ASDA-
10-11