Delta Electronics ASDA-B2 series User Manual page 293

Chapter 9 Troubleshooting
Input power phase loss
:
Potential Cause
Control power supply is
in error.
Pre-overload warning
:
Potential Cause
The drive is going to
overload.
Encoder initial magnetic field error
:
Potential Cause
The magnetic field of
the encoder U, V, W
signal is in error.
Encoder internal error
:
Potential Cause
The internal memory of
the encoder is in error.
An encoder counter
error occurs.
9-8
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Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.
VARITEL INGENIERIA ELECTRONICA S.A.
Checking Method
Check the power cable and connections
of R, S, and T. Check whether the power
cable is loose or the possible loss of
phase on input power.
Checking Method
1. Check the load condition of the servo
motor and drive.
2. Check the setting value of P1-56.
Check whether the setting value of
P1-56 is too small.
Checking Method
1. Check if the servo motor is properly
grounded.
2. Check if the encoder signal cables are
placed in separate conduits from the
cables connected to R, S, T and U, V,
W terminals to prevent the
interference.
3. Check if the shielded cables are used
when performing encoder wiring.
Checking Method
1. Check if the servo motor is properly
grounded.
2. Check if the encoder signal cables are
placed in separate conduits from the
cables connected to R, S, T and U, V,
W terminals to prevent the
interference.
3. Check if the shielded cables are used
when performing encoder wiring.
Corrective Actions
If the fault does not clear even
when the three-phase power is
connected correctly, please
contact your distributor for
assistance or contact with Delta.
Corrective Actions
1. Please refer to the
correction actions of ALE06.
2. Increase the setting value of
P1-56 or set P1-56 to 100
and above.
Corrective Actions
If the error does not clear after
each checking is done, please
contact your distributor for
assistance or contact with Delta.
Corrective Actions
1. Please connect the grounding
(green color) of U, V, W
terminal to the heat sink of the
servo drive.
2. Ensure that the encoder
signal cables are placed in
separate conduits from the
cables connected to R, S, T
and U, V, W terminals to
prevent the interference.
3. Please use shielded cables
for Encoder wiring.
4. If the error does not clear
after all the above actions are
done, please contact your
distributor for assistance or
contact with Delta.
Revision September 2013
ASDA-B2