User Manual of EM730 Series Inverter 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 on the fan control function code (F15.34). The specific running mode of the fan is shown in Table 7-23. Table 7- 23 Details of Fan Operation 283 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F15.33 Operating mode with set frequency less than lower frequency limit 0: running at the lower frequency limit 1:
shutdown 0 〇 0x0F21 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F15.34 Fan control Ones place: fan control mode 0: running after power-on 1: running at startup 2: intelligent operation, subject to temperature control Tens place: power on fan control 0: run for 1 minute and then run in fan control mode 1: directly operate in fan control mode Hundreds place: Fan low speed mode enable (above 280kW) 1: the operation at low speed is invalid 2: low speed operation is valid 101 〇 0x0F22 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.