37
The set time indicates the interval required before the frequency output reaches the frequency
reference upper limit (
Fn6
). Also accel/decel time is effective in digital operator and remote con-
trol. The accel/decel time is effective in analog input, preset speeds and both infinitely variable
speed modes of operation and can be set from 0.1 to 800 seconds for acceleration and 0.1 to 30
seconds for deceleration.
If the inverter is accelerated to a speed below the max Frequency. Set by
Fn6
, the acceleration time
will be reduced proportionately by the following: Fn01 setting (sec.) x (set frequency/maxf)=accel
time (sec.). The same holds true for calculating deceleration times but substitute Fn02 setting for
Fn01 shown above.
NOTE:
The deceleration time is limited to 30 seconds maximum to prevent unsafe operation.
Fn3:
'Speed Commander' speed limit divisor
Fn3
:
'Speed Commander' speed limit divisor (range 1-30)
Used in conduction with 'Speed Commander' function (when
Fn46=3
or
Fn47=3
) to enact a speed
limit (FLimit) during time when terminal #11 of TM2 or terminal #5 of TB1 is active such as:
Flimit= Fmax (
Fn06
)
Fn3
See page 52 and 53 for furthur explanation of this function.
Fn3:
Operation of Speed Commander speed limit.
Fig. 5.3b
