User Manual of A90 Series Inverter acceleration/deceleration time unit is “0.1s”. Except for that in torque control (F13.06), all the acceleration and deceleration time will change. For example, the value of F00.14 will change from 15.00s to 150.0s by default. The frequency hopping function (FH function for short) can prevent the output frequency of the inverter from the mechanical resonance frequency point of the mechanical load. If the inverter is prohibited from running at a constant speed within the frequency hopping range, hopping will not occur during acceleration. Instead, the inverter will run smoothly.
Set frequency Frequency hopping point 3 Hopping range 3 Hopping range 2 Frequency hopping point 2 Hopping range 1 Frequency hopping point 1 Time Fig. 7-34 Schematic Diagram of Frequency Hopping As shown in Fig.
7 -34, the frequency hopping function is set in the form of “frequency 234 Function Default Function code name Parameter description Unit Attribute code setting F15.14 Frequency hopping point 1 0.00-600.00 Hz 600.00 ● F15.15 Hopping range 1 0.00-20.00, 0.00 is invalid Hz 0.00 ● F15.16 Frequency hopping point 2 0.00-600.00 Hz 600.00 ● F15.17 Hopping range 2 0.00-20.00, 0.00 is invalid Hz 0.00 ● F15.18 Frequency hopping point 3 0.00-600.00 Hz 600.00 ● F15.19 Hopping range 3 0.00-20.00, 0.00 is invalid Hz 0.00 ●