4-2 Function Mode Cooling Fan Speed Drop Signal •This signal is output when detecting that the Inverter's built-in cooling fan rotation speed is reduced to 75% or less. •If "01" is selected in cooling fan control b092, this signal is not output even while the fan is stopped. •While this signal is output, check the cooling fan for clogging. •Life assessment monitor d022 shows the status of this signal. 4 Starting Contact Signal Functions •While the Inverter is receiving the RUN command, a starting contact signal is output. •The output is enabled regardless of the setting of RUN command source selection A002. •If inputs FW and RV are simultaneously turned on, the Inverter stops.
Fin Overheat Warning •This function monitors the Inverter's internal fin temperature and outputs a signal when the temperature exceeds the fin overheat warning level (C064). 4-100 Parameter No. Function name Data Default setting Unit C021 to C025 Multi-function output terminal selection 40: WAF (cooling fan life warning signal) C026 Relay output (MA, MB) function selection 05 Related functions b092, d022 Parameter No. Function name Data Default setting Unit C021 to C025 Multi-function output terminal selection 41: FR (starting contact signal) C026 Relay output (MA, MB) function selection 05 Forward command Reverse command Starting contact signal (FR) Parameter No.
Function name Data Default setting Unit C021 to C025 Multi-function output terminal selection 42: OHF (cooling fin overheat warning) C026 Relay output (MA, MB) function selection 05 C064 Fin overheat warning level 0. to 200.: Set a temperature to output the overheat warning signal. 120 °C