User Manual of EM730 Series Inverter “detection level - hysteresis”, the ADT function will be invalid. Energy consumption braking is a braking method for quick deceleration by converting the energy generated in deceleration into the thermal energy of the braking resistor. It is suitable for braking under large-inertia loads or stop by rapid braking. In this case, it is necessary to select the appropriate braking resistor and braking unit, as detailed in 10.1 Braking Resistor and 10.2 Braking unit. Fig.
7-39 Schematic Diagram of Energy Consumption Braking the bus voltage is greater than the energy consumption braking voltage (F15.31), energy In the case of valid energy consumption braking (F15.30=1), as shown in Fig. 7- 39, when consumption braking will be started; and when the bus voltage decreases to less than the aforesaid value, energy consumption braking will be disabled. The IGBT in the braking unit is engaged during energy consumption braking. Energy can be quickly released by the braking resistor. The braking utilization rate (F15.32) is the duty cycle of IGBT running. The greater the duty cycle, the larger the degree of braking is.
282 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F15.30 Options of energy consumption braking function 0: invalid 1: valid 0 〇 0x0F1E F15.31 Energy consumption braking voltage 110.0~140.0 (380V, 100.0 = 537V) % 125.0(671V) 〇 0x0F1F F15.32 Braking rate 20~100 (100 means that duty ratio is 1) % 100 ● 0x0F20