F 5 run frequency control, Or.bc, Run frequency control – Toshiba Tosvert VF-A5 User Manual
Page 69
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u r
.
^ (Special Control Parameters)
F
r u n
F
5
Run frequency control
Related parameters
F r u n
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 - u n
and the run frequency hysteresis | F H H 5 , 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 - 5 b
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.
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