Omron OMNUC W Series User Manual page 369

Troubleshooting
Display
Main circuit Power
Supply Setting S
Overvoltage
Low voltage
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Error Status when error
occurs
Occurs when servo
S is turned on.
Occurs when power
supply is turned ON.
Occurs when Servo-
motor is decelerat-
ing.
Occurs during de-
scent (vertical axis)
Occurs when the
control circuit power
supply only is turned
ON.
Occurs when the
main circuit power
supply is turned ON.
Cause of error
Wiring wrong Re-wire power supply.
Pn001.2 setting Change setting Pn001.2
wrong
Main circuit power Change the main circuit
supply voltage is power supply voltage to
outside tolerance within tolerance range.
range.
Load inertia is too Deceleration time is too
great. long.
Calculate the regenera-
tive energy, and connect
an external Regeneration
Resistor with the required
regeneration absorption
capacity.
Main circuit power Reduce main circuit pow-
supply voltage ex- er supply voltage to with-
ceeds tolerance in tolerance range.
range.
Gravitational torque Add a counterbalance to
is too large. the machinery to lower
gravitational torque.
Slow the descent speed.
Calculate the regenera-
tive energy, and connect
and external Regenera-
tion Resistor with the re-
quired regeneration ab-
sorption capacity.
Control panel error Replace the Servo Driver.
Main circuit power Change the main circuit
supply voltage is power supply voltage to
outside tolerance within tolerance range.
range.
Main circuit power Replace the Servo Driver.
supply is damaged.
Chapter 5
Countermeasures
5-11