User Manual of EM760 High-Performance Inverter 6.6.4 Speed detection (SDT) Speed reached: During acceleration, ifthe output frequency gets higher than “Speed reaches the rising limit” (F15.63), current output is valid; and during deceleration, if the output frequency becomes less than “Speed reaches the falling limit” (F15.65), current output is invalid. Increasing F15.64 improves resistance to interference and prevents mis-operation, but it also extends the delay of output terminal actions. Function number of “Speed reached output terminal”: 42.
6.6.5 Frequency hopping The frequency hopping function (FH function for short) can prevent the output frequency ofthe 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. Fig.
6-30 Schematic Diagram of Frequency Hopping 150 Function code Function codename Parameter description Unit Default setting Attribute F15.63 Speed reaches the rising limit 0.00~Fmax Hz 30.00 ● F15.64 Speed reaches the filtering time 0~60000 ms 500 ● F15.65 Speed reaches the falling limit 0.00~Fmax Hz 0.00 ● Function code Function codename Parameter description Unit Default setting Attribute 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 ●