Omron R88D-GT series User Manual page 456

8-3 Troubleshooting
Alarm
code
12 Overvoltage
8
Main power supply
13
undervoltage
8-7
Error Status when error occurs
Occurs when power
supply is turned ON.
Occurs when Servomo-
tor is decelerating.
Occurs during descent
(vertical axis).
Occurs when the Servo
Drive is turned ON.
Cause
• Main circuit power • Change the main
supply voltage is
outside allowable
range.
• Load inertia is too • Calculate the regener-
great.
• Extend the
• Main circuit power • Change main circuit
supply voltage is
outside allowable
range.
• Gravitational torque is • Add a counterbalance
too large.
• Slow the descent
• Calculate the regener-
• The power supply • Check the power
voltage is low.
• Momentary power • Change the power
interruption occurred.
• Power supply capacity • Turn ON the power
is insufficient.
• The power supply • Extend the
voltage is reduced
because the main
power supply is OFF.
• The main power
supply is not input.
• Phase loss. • Correctly connect the
• Correctly connect the
• The main circuit power • Replace the Servo
supply is damaged.
• Control PCB error.
Countermeasure
circuit power supply
voltage to within
allowable range.
ative energy, and
connect an External
Regeneration Resistor
with the required
regeneration
absorption capacity.
deceleration time.
power supply voltage
to within allowable
range.
to the machine to
lower gravitational
torque.
speed.
ative energy, and
connect an External
Regeneration Resistor
with the required
regeneration
absorption capacity.
supply capacity.
supply.
supply.
Momentary Hold Time
(Pn6D).
phases of the power
supply voltage.
single phase.
Drive.