KEB COMBIVERT F5-A, Applications Manual, Page: 438 / 552

Page 7.15 - 6 COMBIVERT F5-A, -E, -H © KEB, 2012-10
Special functions
7.15.2 Energy saving function
The energy saving function allows the lowering or raising of the current output voltage. In accordance with the
activation conditions defined in uF.6, the voltage valid according to the V/Hz-characteristic is changed in per
-
cent onto the energy saving level (uF.07).
However, the maximal output voltage cannot be higher than the input voltage even if the value is > 100 %. The
function is used for example in cyclic executed load/no-load applications. During the no-load phase the speed
is maintained, but energy is saved as a result of the voltage reduction.
uF.7
t
uf.07 Energy saving factor
0,0…130,0 % (default 70 %)
uf.06 Energy saving mode
Bit 0...3 Energy saving function / activation
0
generally off
1 generally active
2 at actual value = setpoint
3 by digital input
4 at clockwise rotation
5 at counter clockwise rotation
6 by constant run clockwise rotation
7 by constant run counter clockwise rotation
8...15 reserved
Bit 4...6 Energy saving function / ramp time
Default time ca. 1,6 s
0 Default time
16 Default time / 2
32 Default time / 4
48 Default time / 8
64 Default time / 16
f
actual
; n
actual
; U
A
Hysteresis
Example: uF.6 = 2, uF.7 = 50 %
uF.08 Energy saving function
input selection
0...4095 (Default 0)
also see 7.3
„Digital inputs“
f
set
; n
set