Omron OMNUC W Series User Manual page 370

Troubleshooting
Display
Overspeed
Overload
Overload
Dynamic brake
overload
5-12
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Error Status when error
occurs
Occurs when the
servo is ON.
Occurs along with
high-speed rotation
when a command is
input.
Occurs during op-
eration.
Occurs during op-
eration.
Occurs when the
servo is turned OFF
after operating.
Occurs when the
power supply is
turned ON.
Cause of error
Encoder signal be- Rewire correctly.
tween controllers is
wired incorrectly.
Servomotor power Rewire correctly.
line is wired incor-
rectly.
Position and speed Input command values
command inputs are correctly.
too large.
Pn300 (speed com- Set the parameters cor-
mand scale), and rectly.
Pn202 and Pn203
(electronic gear) set-
tings are too large.
Speed limit is not Set Pn407 (speed limit)
performed during
torque control.
Rotation limit has Adjust the gain.
been exceeded due
Lower the maximum spe-
to overshooting.
cified speed.
Running at over Repair the Servomotor
245% of rated shaft if it is locked.
torque (effective
If the Servomotor power
torque).
line is wired incorrectly,
rewire it correctly.
Lighten the load.
Lengthen the accelera-
tion and deceleration
times.
Adjust the gain.
Power supply volt- Check the power supply
age has fallen. voltage, and lower to
within tolerance range.
Running at 120% to Lighten the load.
245% of rated
Lengthen the accelera-
torque (effective
tion and deceleration
torque).
times.
Adjust the gain.
Power supply volt- Check the power supply
age has fallen. voltage, and lower to
within tolerance range.
Energy required for Lower the rotation speed.
stopping exceeds
Reduce the load inertia.
the dynamic brake
Reduce the frequency of
resistor tolerance.
dynamic brake use.
Control panel error Replace the Servo Driver.
Chapter 5
Countermeasures