Delta ASD-B2-0121-B, User Manual

Page: 276 / 313

Chapter 10 Troubleshooting
Revision June 2010
10-5
: Abnormal pulse control command
Potential Cause Checking Method Corrective Actions
Pulse command
frequency is higher
than rated input
frequency.
Use pulse frequency detector to measure
input frequency. Correctly set the input pulse
frequency.
: Excessive deviation
Potential Cause Checking Method Corrective Actions
Maximum deviation
parameter setting is
too small.
Check the maximum deviation
parameter setting and observe the
position error value when the motor is
running.
Increases the parameter
setting value of P2-35.
Gain value is too
small.
Check for proper gain value. Correctly adjust gain value.
Torque limit is too
low.
Check torque limit value.
Correctly adjust torque limit
value.
There is an overload. Check for overload condition.
Reduce external applied load
or re-estimate the motor
capacity.
: Reserve
: Encoder error (Position detector fault)
Potential Cause Checking Method Corrective Actions
The wiring of encoder
is in error.
1. Check if all wiring is correct.
2. Check if the users conduct the
wiring by the wiring information in
the user manual.
Ensure all wiring is correct.
Encoder is loose Examine the encoder connector. Install the motor again.
The wiring of encoder
is defective.
Check if all connections are tight. Conduct the wiring again.
Encoder is damage Check the encoder for the damage. Repair or replace the motor.
: Adjustment error
Potential Cause Checking Method Corrective Actions
The setting value of
drift adjustment has
exceeded its maximum
allowable value.
1. Remove CN1 wiring.
2. Execute the drift adjustment again.
(Set P2-08 to 20 first, and then set
P4-10 to 5.)
If the error does not clear
after executing the drift
adjustment again, please
contact your distributor for
assistance or contact with
Delta.