F747 Carrier frequency auto-adjusting
Setting range:
0: Invalid
1: Valid
Mfr’s value: 1
When the temperature of the heatsink reaches the value of 95℃ X F745 and multi-function output
terminal is set to 16 (refer to F300~F302), it indicates inverter is in the status of overheat.
When F747=1, the temperature of the heatsink reaches 86℃, inverter carrier frequency will
adjust automatically, to decrease the temperature of inverter. This function can avoid overheat
malfunction.
When F159=1, random carrier frequency is selected, F747 is invalid.
F754 Zero-current threshold (%) Setting range: 0~200 Mfr’s value: 5
F755 Duration time of zero-current (S) Setting range: 0~60 Mfr’s value: 0.5
When the output current has fallen to zero-current threshold, and after the duration time of
zero-current, ON signal is output.