3
Installation
3-3
3. Connecting to the power
Attach the power connector to the power cable and insert it into the "AC IN" connector on the front panel of
the controller.
3.1 Power supply and ground terminals
CAUTION
Before connecting the power cable, be sure to check that the power supply voltage matches the power
specifications of your controller.
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Power supply terminals
Input terminal Wiring Name Remarks
L Live 200 to 230 V
Main power supply (for motor power) Wire cross-section 2.0 sq* or more
N Neutral 200 to 230 V
L1 Live 200 to 230 V
Control power supply
Wire cross-section 1.25 sq* or more
N1 Neutral 200 to 230 V
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Ground terminal
Terminal symbol
Name Remarks
(PE) Ground (Class D grounding)
Wiring material: 2.0 sq* or more, Tightening torque: 1.4 N•m
Ground resistance: 100 ohms or less
*sq (square) is a unit used to indicate the cross-sectional area of stranded wires, with 1sq indicating 1 square millimeter.
WARNING
• To prevent electrical shocks or faulty operation caused by noise, the earth terminal (protective conductor) must
be grounded properly.
• Class D grounding is required.
• To prevent electrical shocks, never touch the AC IN terminals when power is supplied to the robot controller.
■
Connection example
L
N
L1
N1
YRCX
Refer to 3.4
Single phase
200V AC
Refer to 3.7
Leakage
breaker
Noise
filter
Surge
absorber
Refer to 3.8
Refer to 3.5 Refer to 3.6
Circuit
protector
Electro-
magnetic
contactor
Circuit
protector
CAUTION
To prevent break downs, do not mistake the terminal connection locations.
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