Energy Saving Function - KEB COMBIVERT F5 MULTI Applications Manual

Special Functions
6.9.2 Energy Saving
Function
(only F5-B, F5-G and
F5-M if cS.0=0)
Used Parameters
PROG.
Param. Adr.
RO
uF.6 0506h -
uF.7 0507h -
uF.8 0508h -
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All rights reserved
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 percent onto the energy saving level (uF.7).
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.8 Input selection

Energy saving function

0...4095 (default 0)
also see 6.3
„Digital inputs"
ENTER
min
- 0 79
- 0.0 % 130.0 %
- 0 4095
Name: Basis
KEB COMBIVERT F5
Functional Description
uF.7 Energy saving factor
0.0...130.0 % (default 70 %)
uF.6 Energy saving function / Activation
Bit 0...3 Aktivierung
0 Function off
1 Generally on
2 When actual = setpoint frequency/speed
3 Activation through programmable inputs
4 Generally at rotation direction forward
5 Generally at rotation direction reverse
6 Rotation direction forward and actual = set freq./speed
7 Rotation direction reverse and actual = set freq./speed
8...15 reserved
Bit 4...6 Einstellung der Spannungsrampe
Spannungsrampe bei B/C-Steuerung ca. 1 s
Spannungsrampe bei G/M/S-Steuerung ca. 1,6 s
0 Spannungsrampe
16 Spannungsrampe / 2
32 Spannungsrampe / 4
48 Spannungsrampe / 8
64 Spannungsrampe / 16
f ; n ; U
act act
f /n
set set
uF.7
Example: uF.6 = 2, uF.7 = 50 %
Step
max
default
1 0
1 % 70 %
1 128
Hysteresis
A
t
-
-
-
Date Chapter Section
6 9
04.05.04
6
Page
5