User Guide of EM730 Series Inverter MCCB Iron box Metal tube Noise filter Noise filter IM Fig.3-4Solution to RF Interference 3.2.5 Cable and screw dimensions of main circuit The cable and screw dimensions of the main circuit are shown in EM730 User manual. 3.2.6 Installation and wiring of braking resistor and braking unit Refer to Chapter 8 for the selection and wiring of the braking resistor and braking unit. 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. 3.3 Wiring of Control Circuit Terminal 3.3.1 Composition of control circuit terminal J10 NPN PNP J7 M1 AI2 V I J8 V I 485 ON S1 OFF RJ45 8 1 KeyBoard Y1 AI1 AI2 M1 A+ A- GND +10V EA EB EC COM X5 YCM 24V X1 X2 X3 X4 Fig.3-11 Layout of Control Circuit Terminals 1 Note: YCM is the common end of Y1 terminal.
If Y1 terminal is not used, the connection plate between YCM and COM may not be connected 3.3.2 Functions and wiring of control circuit terminals 22 Inverter Termi label nal Terminal name Category Function description Power supply 24V External power Supply 24V power to external devices, with