User Manual of A90 Series Inverter on the fan control function code (F15.34). The specific running mode of the fan is shown in Table 7-21. Table 7-21 Details of Fan Operation ★ When “2: intelligent operation, subject to temperature control” is selected, make sure that the temperature detection module of the inverter works properly. When the input voltage of the inverter is lower than the output voltage, you can increase the overmodulation intensity to improve the bus voltage utilization and thus increase the upper limit of output voltage.
When F15.35=1.10, the upper limit of output voltage can be increased by 10%, thus reducing the output current under heavy loads, but the current harmonics will increase. In the terminal control mode (F00.02=1), this function code is used to set the highest priority of the jog command. If the terminal jog priority is valid (F15.39=1), the running status can be switched to jog running in the presence of a valid jog terminal; and if the terminal jog priority is invalid (F15.39=0), the running status cannot be directly switched to jog running. 240 Fan control Fan operation 0: running after power-on When the inverter is powered on, the fan will start running. 1:
running at startup When the inverter starts running, the fan will start running. When this parameter is set to 1 min, the fan will stop running. 2: intelligent operation, subject to temperature control When the temperature of the inverter is greater than 45°C, the fan will start running; when the temperature of the inverter is less than 40°C, the fan will stop running; and when the temperature of the inverter is in between the two values, the fan will remain unchanged.
Parameter Default Function code Function code name Unit Attribute description setting F15.35 Overmodulation intensity 1.00 - 1.10 1.05 ● Function code Function code name Parameter description Unit Default setting Attribute F15.39 Terminal jog priority 0: Invalid 1: valid 0 ○