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For Sate Operations
1. Prevention of electric shocks
WARNING
Never open the front case or terminal covers while the power is ON or the unit is running, as
this may lead to electric shocks.
Never run the unit with the front case or terminal cover removed. The high voltage terminal
and charged sections will be exposed and may lead to electric shocks.
Never open the front case or terminal cover at times other than wiring work or periodic
inspections even if the power is OFF. The insides of the control unit and servo amplifier are
charged and may lead to electric shocks.
When performing wiring work or inspections, turn the power OFF, wait at least ten minutes,
and then check the voltage with a tester, etc. Failing to do so may lead to electric shocks.
Always ground the control unit, servo amplifier and servomotor with Class 3 grounding. Do
not ground commonly with other devices.
The wiring work and inspections must be done by a qualified technician.
Wire the units after installing the control unit, servo amplifier and servomotor. Failing to do
so may lead to electric shocks or damage.
Never operate the switches with wet hands, as this may lead to electric shocks.
Do not damage, apply excessive stress, place heavy things on or sandwich the cables, as
this may lead to electric shocks.
Do not touch the control unit, servo amplifier or servomotor terminal blocks while the power
is ON, as this may lead to electric shocks.
Do not touch the internal power supply, internal grounding or signal wires of the control unit
and servo amplifier, as this may lead to electric shocks.
2. For fire prevention
CAUTION
Install the control unit, servo amplifier, servomotor and regenerative resistor on inflammable
material. Direct installation on flammable material or near flammable material may lead to
fires.
If a fault occurs in the control unit or servo amplifier, shut the power OFF at the servo
amplifier’s power source. If a large current continues to flow, fires may occur.
When using a regenerative resistor, shut the power OFF with an error signal. The regenera-
tive resistor may abnormally overheat due to a fault in the regenerative transistor, etc., and
may lead to fires.
Always take heat measures such as flame proofing for the inside of the control panel where
the servo amplifier or regenerative resistor is installed and for the wires used. Failing to do
so may lead to fires.