
u r.
^ (Special Control Parameters)
F
run
F 5 Run frequency control
Related parameters
Fr un Run frequency FHy Sj frequency hysteresis
The inverter run/stop can be controlled with just the reference frequency signal. By setting the run frequency
f- un
and the run frequency hysteresis | FHH5 , the inverter will start running when the reference
frequency signal is higher than point B in the following diagram, and will stop when less than point A.
* For example, when using the inverter for HVAC applications, etc., and automatically operating from a room
temperature signal, the Inverter can be stopped when the reference frequency signal drops below 30Hz.
Output frequency
[H2]
Tun
Frun +
* During acceleration, the inverter will start with start-up frequency F - 5b
in C r-.S C when the
reference frequency signal is higher than point B. During deceleration, the inverter will stop at end frequency
F - E n in C r.5 C when the reference frequency signal drops below point A.
'63 -
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