Regeneration Error; Overload; Overspeed; Abnormal Pulse Control Command - Delta Electronics AC Servo Drive ASDA-AB User Manual

Chapter 10 Troubleshooting|ASDA-AB Series

: Regeneration error

Potential Cause
Regenerative resistor is
not connected.
Regenerative switch
transistor fault
Parameter setting is in
error

: Overload

Potential Cause
The drive has exceeded
its rated load during
continuous operation.
Control system
parameter setting is
incorrect.
The wiring of drive and
encoder is in error.

: Overspeed

Potential Cause
Speed input command
is not stable (too much
fluctuation).
Over-speed parameter
setting is defective.

: Abnormal pulse control command

Potential Cause
Pulse command
frequency is higher
than rated input
frequency.
: Excessive deviation
Potential Cause
Maximum deviation
parameter setting is too
small.
Gain value is too small. Check for proper gain value.
Torque limit is too low.
There is an overload.
10-4
Checking Method
Check the wiring connection of regenerative
resistor.
Check if regenerative switch transistor is short-
circuited.
Confirm the parameter setting and
specifications of regenerative resistor.
Checking Method
Check if the drive is overloaded.
Check if there is mechanical vibration
Accel/Decel time setting is too fast.
Check the wiring of U, V, W and encoder.
Checking Method
Use signal detector to detect if input signal is
abnormal.
Check if over-speed parameter setting value is
too low.
Checking Method
Use pulse frequency detector to measure input
frequency.
Checking Method
Check the maximum deviation parameter
setting and observe the position error value
when the motor is running.
Check torque limit value.
Check for overload condition.
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).
Corrective Actions
Correctly set the input pulse
frequency.
Corrective Actions
Increases the parameter setting
value of P2-35.
Correctly adjust gain value.
Correctly adjust torque limit value.
Reduce external applied load or re-
estimate the motor capacity.
Revision January 2009