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Chapter 10 Troubleshooting|ASDA-B Series
10-6 Revision January 2009
ALE 8 / ALE
: 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.
ALE 9 / ALE : Excessive deviation
When the motor is running:
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.
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.
When pulse command is input but the motor does not run or the moving is very slow:
Potential Cause Checking Method Corrective Actions
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.
The excessive deviation fault occurs immediately when the pulse command is given:
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.
Too much fluctuation of
pulse command.
Check the pulse frequency.
Adjust pulse frequency and
activate filter function (P1-06, P1-
07 and P1-08).
ALE 10 / ALE : Serial communication error
Please refer to section 8.3.4 in Chapter 8 for the related error codes.
Potential Cause Checking Method Corrective Actions
Communication
parameter setting is
defective.
Check the communication parameter setting. Correctly set parameter setting.
Communication
address is incorrect.
Check the communication address.
Correctly set communication
address.
Communication value is
incorrect.
Check the communication value. Correctly set communication value.