Preface
Danfoss inverter multi-speed control is suitable for environment with lower cost and simpler control. Inverter output frequency
f = P302 + (P303 － P302) × P310.n (n can take 0 to 7)
wiring
Inverter parameter setting
Note: If 5-12 (terminal 27) defaults to [2] as coasting, it needs to be changed to 0 (no effect) or the actual function required
Output frequency calculation
Inverter output frequency f = P302 + (P303 － P302) × P310.n (n can be 0 ~ 7)
such as hard-wired terminal 27 to set parameter 18 within 5-10; at this time, enable preset reference value bit 2 and when When its bit is 1, the frequency percentage set in the preset reference value 4 is enabled. Output frequency F=0HZ+(50HZ-0HZ)×50%=25HZ
Supplement: If there are two more external terminals, and the 17 and 16 preset reference values are allocated Bit 0 and pre-made reference value bit 1 can form a total of 8 combinations with pre-made reference value 2.
Note: Everyone is welcome to comment and correct, and make common technological progress !