Delta ASD-A2-0121 Series User Manual page 632

Chapter 10 Troubleshooting
AL022：Main circuit power leak phase
Causes
The main circuit power is
abnormal.
AL023：Early warning for overload
Causes
Early warning for
overload
AL024：Encoder initial magnetic field error
Causes
The initial magnetic field
of the encoder is in error
(Signal, U, V, W of the
encoder magnetic field
is in error.)
AL025：The internal of the encoder is in error
Causes
The internal of the
encoder is in error.
(The internal memory
and the internal counter
are in error.)
When powered on, the
motor operates because
of the mechanical inertia
or other causes.
Checking Method
Check if RST power cable is loose
or there is no power. This alarm
occurs when the 1.5 kW (or below)
A2 servo drive is not connected to
the three-phase power supply. For
2 kW (or above) A2 servo drives,
the alarm occurs when one single
phase is not connected to the power
supply.
Checking Method
1. Check if it is used in an overload
condition.
2. Check if the value of parameter
P1-56 is set too small.
Checking Method
1. Check if the servo motor is
properly grounded.
2. Check if the encoder cable
separates from the power supply
or the high-current circuit to avoid
the interference.
3. Check if the shielding cables are
used for the encoder.
Checking Method
1. Check if the servo is properly
grounded.
2. Check if the encoder cable
separates from the power supply
or the high-current circuit to avoid
the interference.
3. Check if the shielding cables are
used for the encoder.
When powered on, please make
sure the motor shaft stands still and
will not operate.
Corrective Actions
Make sure it applies to the power. If
the issue persists, please send the
drive back to the distributors or
contact Delta.
Corrective Actions
1. Please refer to the corrective
actions of AL006.
2. Please increase the setting
value of parameter P1-56. Or
set the value over 100 and
deactivate the overload warning
function.
Corrective Actions
If the issue persists, please send
the drive back to the distributors or
contact Delta.
Corrective Actions
1. Please connect the UVW
connector (color green) to the
heat sink of the servo drive.
2. Please check if the encoder
cable separates from the power
supply or the high-current circuit.
3. Please use shielding mesh.
4. If issue persists, please send the
drive back to the distributors or
contact Delta.
Make sure the motor shaft does not
move when power is turned on.
ASDA-A2
10-17