7.9.7.2 Fan control (P6.7.2)
Use this function to control the cooling fan of the AC drive. You have 4 options to select from:
• Continuous (default setting). The fan is always on when the power is on.
• Temperature. The fan starts automatically when the heat sink temperature goes to 60 °C
(140 °F) or when the AC drive operates.
The fan stops about a minute after one of these:
– the heat sink temperature falls to 55 °C (131 °F)
– the AC drive stops
– the Fan control value is changed from Continuous to Temperature
• First start. When power is on, the fan is in the stop state. When the AC drive gets the first
start command, the fan starts.
• Calc temp. The fan function agrees to the calculated IGBT temperature:
– If the IGBT temperature is more than 40 °C (104 °F), the fan starts.
– If the IGBT temperature is below 30°C (86 °F), the fan stops.