User’s Guide for EM760 series high-performance vector inverter shield the inverter and its peripheral device with iron boxes to reduce external interference. Refer to Fig. 3-5 for the wiring requirements. For more detailed measures to reduce external interference, refer to the EM760 User’s Manual. Iron box Metal tube MCCB Noise Inverter Noise 铁箱 金属管 噪声 滤波器 变频器 噪声 滤波器 IM filter filter Fig. 3-5 Measures for Reduction of External Interference Cable and screw dimensions of main circuit For cable size and terminal screw specifications, refer to the user manual for EM760.
Installation and wiring of braking resistor and braking unit For dynamic braking during operation, it is required to select a braking resistor and a braking unit following Chapter 8. For the inverter with a built-in braking unit, connect the braking resistor between the inverter terminal (+) and PB terminal. For the inverter with no built-in braking unit, connect the terminals (+ and -) of the braking unit to those (+ and -) of the DC bus of the inverter, and the braking resistor to the PB+ and PB- terminals of the braking unit. Refer to the user manual of the BR100 braking unit for more information.
3.3 Wiring of Control Circuit Terminal 3.3.1 Composition of control circuit terminal The layout of control circuit terminals is shown in Fig. 3-6 . J7 J8 ON OFF S1 J13 Fig. 3-6 Layout of Control Circuit Terminals 3.3.2 Functions and wiring of control circuit terminals The functions of control circuit terminals are shown in the table below. 24 Category Terminal Terminal name Terminal function description label Auxiliary power supply +10V power supply Supply +10.5±0.5V power to external devices. Maximum 10V-GND output current: 20mA