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4.4
Installing a circuit protector
To ensure safety, a circuit protector must be installed in the power supply connection
section of the robot controller.
An inrush current, which might be from several to more than 10 times higher than the
rated current, flows at the instant the controller is turned on or the robot motors start to
operate. When installing an external circuit protector for the robot controller, select a
circuit protector that provides optimum operating characteristics.
To ensure proper operation, we recommend using a medium to slow response circuit
protector with an inertial delay function. (Refer to the circuit protector manufacturer's
data sheets for making the selection.)
w
WARNING
ELECTRICAL SHOCKS, INJURIES OR FIRES MIGHT OCCUR IF THE MOTOR BREAKS
DOWN WHILE THE ROBOT CONTROLLER IS USED WITHOUT INSTALLING A
CIRCUIT PROTECTOR.
RCX221 control power supply (L1, N1)
RCX221 main power supply (L, N)
4.5
Installing a surge absorber
Be sure to install an external surge absorber to protect the equipment from surge noise
caused by lightning strikes.
Recommended Surge Absorber Model
LT-C12G801WS
4. Connecting to the power
Rated current
Operating characteristics
3A
Slow type with inertial delay
10A
Manufacturer
SOSHIN Electric Co., Ltd.
Chapter
3
3-11
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