Delta ASD-B2-0121-B User Manual page 276

: 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.
Torque limit is too
low.
There is an overload. Check for overload condition.
: Reserve
: Encoder error (Position detector fault)
Potential Cause
The wiring of encoder
is in error.
Encoder is loose
The wiring of encoder
is defective.
Encoder is damage
: Adjustment error
Potential Cause
The setting value of
drift adjustment has
exceeded its maximum
allowable value.
Revision June 2010
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 for proper gain value.
Check torque limit value.
Checking Method
1. Check if all wiring is correct.
2. Check if the users conduct the
wiring by the wiring information in
the user manual.
Examine the encoder connector.
Check if all connections are tight.
Check the encoder for the damage.
Checking Method
1. Remove CN1 wiring.
2. Execute the drift adjustment again.
(Set P2-08 to 20 first, and then set
P4-10 to 5.)
Chapter 10 Troubleshooting
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.
Corrective Actions
Ensure all wiring is correct.
Install the motor again.
Conduct the wiring again.
Repair or replace the motor.
Corrective Actions
If the error does not clear
after executing the drift
adjustment again, please
contact your distributor for
assistance or contact with
Delta.
10-5