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2.3 Wiring
Ground terminal
■
The controller must be grounded to prevent electrical shocks in case of electrical
1
leakage, and to prevent equipment malfunctions due to electrical noise.
A Class D or higher grounding (grounding resistance of 100
Be sure that ground is securely connected.
WARNING
2
Tighten the ground terminal screw to the torque shown below.
Recommended Tightening Torque
Installing wiring breakers
■
Leakage breaker
3
The controller drives the motors by PWM control, thereby creating a high-frequency
leakage current flow which could cause external leakage breaker malfunctions.
Therefore, when installing an external leakage current breaker, be sure to select the
optimum sensitivity current rating (I
data sheets to select the optimum product compatible with inverters.)
4
Main power supply (L,N)
Control power supply (L1, N1)
5
1.
2.
CAUTION
3.
6
4.
Circuit protector
An inrush current (several times to 10 times the rated current) occurs at the
instant the controller is turned on, or at the instant robot motors begin to run.
7
When installing an external circuit protector, select a circuit protector that
provides optimum operating characteristics. (Refer to the circuit protector
manufacturer's data sheets when making the selection.)
Input Power Voltage
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
2-6
Chapter 2 Installation and wiring
Power Supply Type
Leakage current is measured by a leak tester (Hioki Electric 3283), with the low-
pass filter (100Hz) turned on.
When using multiple controllers, use the sum of the leakage currents from each
controller.
Be sure that the controller is securely grounded.
Stray capacitance between the cable and the FG may vary depending on the cable
installation condition, causing the leakage current to fluctuate.
Driver
-P205
200VAC
-P210
-P220
-P105
100VAC
-P110
LT-C12G801WS
N·m
0.75
n). (Refer to the leakage breaker manufacturer's
∆
Leakage Current
Total 1mA
Rated Current
(Arms)
2
3
Medium to slow response
7
type with inertial delay
4
6
Manufacturer
SOSHIN Electric Co., Ltd.
or less) is required.
Ω
Recommended
Characteristics
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