Delta ASDA-B2 Series User Manual page 293

Chapter 9 Troubleshooting
AL006:
Overload
Causes
Over the rated
loading of the drive
and continuously
excessive using
The setting of the
control system
parameter is
inappropriate.
Wrong wiring of the
motor and the
encoder.
The encoder of the
motor is defective.
AL007:
Overspeed
Causes
Unreasonable
command
Inappropriate
parameter setting
Torque limit
AL008:
Abnormal pulse command
Causes
The pulse
command
frequency is higher
than the rated input
frequency.
9-6
Checking Method
Set parameter P0-02 to 11 and see if
the average torque [%] is over 100% all
the time.
1. Check if there is any mechanical
vibration.
2. Check if the acceleration /
deceleration constant are set
too fast.
Check the wiring of U, V, W and the
encoder.
Send the drive back to the distributors or contact Delta.
Checking Method
Use the scope to check if the signal of
analog voltage is abnormal.
Check if the setting of parameter P2-34
is too small (the condition of over-speed
warning).
1. Check if DI:TRQLM (torque limit) is
enabled.
2. Check if the torque limit default of
P1-02 is enabled.
3. Check if there is any torque limit
setting for P1-12 ~ P1-14.
Checking Method
Use the scope to check if the input
frequency is over the rated input
frequency.
Corrective Actions
Increase the motor capacity
or reduce the load.
1. Adjust the gain value of
the control circuit.
2. Slow down the
acceleration /
deceleration setting time.
Correct wiring
Corrective Actions
Less steep command used
or filter applying to smooth
command.
Correctly set parameter
P2-34 (the condition of
over-speed warning).
1. Disable torque limit DI.
2. Disable the default
setting.
3. P1-12 ~ P1-14 = 100%
Corrective Actions
Correctly set the input pulse
frequency.
Revision May, 2018
ASDA-B2