Omron R6YXC1000, Руководство пользователя, Страница: 70 / 260

3
Installa
tion
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3.4 Installing an external leakage breaker
Since leakage current flows at high frequencies in the robot controller, always equip the robot controller power
connection with an earth leakage current breaker for safety. It is important to choose the optimum sensitivity
current rating (I
Δ
n).
(Check the leakage breaker manufacturer's data sheets to select the optimum product compatible with inverters.)
3.4.1 Selecting condition
The leakage current value is 2.7 mA (MAX.) in total of the control power and main power supply. The value
was measured with a leak tester (Hioki Electric 3283) with a low-pass filter turned on (100Hz).
CAUTION
1. When using two or more controllers, sum the leakage current of each controller.
2. Make sure that the controller is securely grounded.
3. Stray capacitance between the cable and FG may vary depending on the cable installation condition, causing
the leakage current to fluctuate.
3.5 Installing a circuit protector
Always equip the robot controller power connection with an earth leakage current breaker for safety.
An inrush current, which might be from several to nearly 20 times higher than the rated current, flows at the
instant that the controller is turned on or the robot motors start to operate. Therefore, select a medium to slow
response circuit protector with an inertial delay function.
Example
Rated current Operating characteristics
YRCX control power supply (L1, N1) 5 A
Slow response type with inertia delay
YRCX main power supply (L, N) 15 A
3.6 Installing an electromagnetic contactor
In controlling the power on/off operation of the controller using an external device, such as PLC, an electro-
magnetic contactor should be installed on the AC power supply line for the controller. Select one that falls
under the required safety category and control the open/close operation using a circuit that meets the category.
In this case, separate the control power supply line from the main, and install the electromagnetic contactor on
the main power supply side.
To control the operation using emergency stop, turn the main power on and off.