Omron SMARTSTEP A Series User Manual page 223

Troubleshooting
Display Error
Overspeed
Overload
a.7 0
Dynamic
brake over-
load
Inrush resis-
tance overload
Status when
error occurs
Occurs when the Encoder signal between
servo is ON. controllers is wired incor-
rectly.
Servomotor power line is
wired incorrectly.
Occurs along with Position command input
high-speed rota- exceeds 4,500 r/min.
tion when a com-
Pn202 and Pn203 (elec-
mand is input.
tronic gear ratio) setting is
too large.
Resolution setting switch
(switches 4 and 5) setting is
too low.
Rotation limit has been
exceeded due to over-
shooting.
Occurs during Running at over 120% of
operation. rated torque (effective
torque).
Power supply voltage has
fallen.
Servomotor winding is
burned out.
Servo Driver is burned out. Replace the Servo Driver.
Occurs when the Energy required for stop-
servo is turned ping exceeds the dynamic
OFF after operat- brake resistor tolerance.
ing.
Occurs when the Control panel error
power supply is
turned ON.
Occurs when the The frequency by which
main circuit power main-circuit power supply is
supply is turned
turned ON and OFF
ON. exceeds 5 times/min.
Occurs when the Control panel error
control circuit
power supply only
is turned ON.
Cause of error
Rewire correctly.
Rewire correctly.
Input command values cor-
rectly.
Set the parameters correctly.
Reset the switches correctly.
Adjust the gain.
Lower the maximum specified
speed.
Repair the Servomotor shaft if
it is locked.
If the Servomotor power line is
wired incorrectly, rewire it cor-
rectly.
Lighten the load.
Lengthen the acceleration and
deceleration times.
Adjust the gain.
Check the power supply volt-
age, and lower to within toler-
ance range.
Check the winding resistance.
Replace the Servomotor if the
winding is burned out.
Lower the rotation speed.
Reduce the load inertia.
Reduce the frequency of
dynamic brake use.
Replace the Servo Driver.
Reduce the frequency by which
the main circuit power supply is
turned ON and OFF.
Replace the Servo Driver.
Chapter 5
Countermeasures
5-9