User Manual of A90 Series Inverter Energy consumption Bus voltage braking voltage F15.30 Energy consumption 0 Time t braking 0 No braking Time t In the case of valid energy consumption braking (F15.30=1), as shown in Fig. 7-38, Fig. 7-38 Schematic Diagram of Energy Consumption Braking when the bus voltage is greater than the energy consumption braking voltage (F15.31), energy consumption braking will be started; and when the bus voltage decreases to less than the aforesaid value, energy consumption braking will be disabled. can be quickly released by the braking resistor. The braking utilization rate (F15.32) is the The IGBT in the braking unit is engaged during energy consumption braking.
Energy duty cycle of IGBT running. The greater the duty cycle, the larger the degree of braking is. When the set frequency of the inverter is lower than the lower frequency limit (F00.19), the running status depends on the function code F15.33. In order to use the fan reasonably, the fan system has three running modes, depending 239 Braking Function Default Function code name Parameter description Unit Attribute code setting F15.33 Operating mode with set frequency less than lower frequency limit 0: running at the lower frequency limit 1: Shutdown 0 ○ Function Function Parameter description Unit Default setting Attribute code code name F15.34 Fan control 0: running after power-on 1:
running at startup 2: intelligent operation, subject to temperature control 1 ○