Omron OMNUC FND Series User Manual page 218

Application
Symptom Probable cause
The motor does
The RUN signal is OFF.
not operate
even when the
START com- START
The correspondence between
mand is input.
the Driver and the Servomotor is
incorrect.
The CWL/CCWL inputs are
OFF.
The software limit is being
detected.
Deceleration stop is OFF.
The point number input is 0.
One of the following signals is
being input: origin search,
teaching, JOG, or alarm reset.
During direct positioning, the
position data is set for "I (incre-
mental) 0."
The position data (Pd
executed does not match the
present value.
The motor's power lines are dis-
connected.
The control mode is incorrect.
The START signal is not being
input.
During direct positioning, the
positioning data is not being
properly received. l
Reference speed (PP-14, 15) is
"0."
The rotation
The motor rotation direction
direction is (UP-26) setting is incorrect.
wrong.
The position data (Pd
ting is incorrect.
During direct positioning, the
position data's polarity input is
incorrect.
The encoder/resolver wiring is
incorrect.
4-26
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Use the Check Mode to check
the RUN signal's ON/OFF sta-
tus.
Check the models.
Use the Check Mode to check
the inputs.
Use the Monitor Mode to check
the present value.
Check the software limits
(PP-10, 11, 12, 13).
Use the Check Mode to check
the input.
Use the Check Mode to check
the input.
Use the Check Mode to check
the inputs.
Check the position data setting.
) to be Check the position data
(Pd
Check the power lines.
Check the control mode
(UP-01).
Use the Check Mode to check
the input.
Check the wiring for the position
g g
and speed data selections.
i d
Check the setting of the signal
output time (PP-26).
Check the reference speed
(PP-14, 15) setting.
Check the motor rotation direc-
tion (UP-26) setting.
) set- Check the position data
(Pd
Check the position data setting.
Check the encoder/resolver wir-
ing.
Items to check
Combine models that corre-
spond correctly.
Correct the wiring.
Correctly set the software limits.
DIO type:
CompoBus/S type:
Correctly set the point number
input.
Correct the wiring.
Correctly set the position data.
Correctly set the position data
). (Pd
Correct the wiring.
Correctly set the control mode.
Correct the wiring.
Correct the wiring.
Check the signal reception tim-
ing and correctly set the pulse
width.
Correctly set the reference
speed (PP-14, 15).
Correctly set the motor rotation
direction (UP-26)
Correctly set the position data
) setting. (Pd
Correctly set the position data.
Correct the wiring.
Chapter 4
Countermeasures
Input the RUN signal.
Correct the wiring.
Correct the wiring.
Turn both the external control
input (CN4-4) and the Compo-
Bus/S input (OUT7) ON.
Correct the wiring.
).
).