Delta Electronics ASDA-B2 series User Manual page 289

Chapter 9 Troubleshooting
Motor error
:
Potential Cause
Encoder is damage. Check Encoder for the damage.
Encoder is loose. Examine the Encoder connector.
The type of the servo Check if the servo drive and servo motor
motor is incorrect. are not correctly matched for size (power
rating).
Regeneration error
:
Potential Cause
Regenerative resistor Check the wiring connection of
is not connected. regenerative resistor.
Regenerative switch Check if regenerative switch transistor is
transistor fault short-circuited.
Parameter setting is Confirm the parameter setting and
in error specifications of regenerative resistor.
Overload
:
Potential Cause
The drive has
exceeded its rated
Check if the drive is overloaded.
load during
continuous operation.
Check if there is mechanical vibration
Control system
parameter setting is
incorrect.
Accel/Decel time setting is too fast.
The wiring of drive
and encoder is in Check the wiring of U, V, W and encoder.
error.
Overspeed
:
Potential Cause
Speed input
command is not Use signal detector to detect if input signal
stable (too much is abnormal.
fluctuation).
Over-speed
Check if over-speed parameter setting
parameter setting is
value is too low.
defective.
9-4
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VARITEL INGENIERIA ELECTRONICA S.A.
Checking Method
Checking Method
Checking Method
Checking Method
Corrective Actions
Repair or replace the motor.
Install the motor again.
Replace the motor.
Corrective Actions
Reconnect regenerative resistor.
Please contact your distributor
for assistance or contact with
Delta.
Correctly reset parameter again.
Corrective Actions
Increase motor capacity or
reduce load.
Adjust gain value of control
circuit.
Decrease Accel/Decel time
setting.
Ensure all wiring is correct.
Corrective Actions
Ensure that input command
frequency is stable (not
fluctuate too much) and
activate filter function (P1-06,
P1-07 and P1-08).
Correctly set over-speed
parameter setting (P2-34).
Revision September 2013
ASDA-B2