6
53
KEB COMBIVERT F5
Name: Basis
17.04.02
6
Section PageDate
© KEB Antriebstechnik, 2002
All rights reserved
Chapter
Functional DescriptionU/f-Characteristic Adjustment
6.5 Voltage-/
Frequency
Characteristic
Adjustment
In the following chapter all parameters for the adjustment of the voltage/frequency
characteristic as well as the appropriate adjustments like modulation, voltage rise
(Boost) and switching frequency are described. Except for the switching frequency
these adjustments apply only to F5-B, F5-G and F5-M in controlled operation (CS.0=off).
6.5.1 Control Type
(ud.2) and Max
Frequency Mode
(only F5-B)
This parameter depends in the value range on the used control. The values 0...2 apply
to open loop systems (F5-B and F5-G), the values 4...6 to closed loop systems (F5-
M) and the values 7...10 to servos (F5-S). For these units a separate instruction
manual is available, for that reason we do not go into details here.
This parameter defines the maximal possible output frequency/speed, the resolution
and the reference values for the ramp times, the analog outputs and the dc brake.
Changes effect all frequency/speed dependent parameters. The parameter can only
be written with opened control release. After a change the initialization is passed
through, so that no Power-On-Reset is necessary.
ud.2 Control typ Maximal frequency Resolution
0 F5-G/B 400 Hz 0,0125 Hz
1 F5-G/B 800 Hz 0,025 Hz
2 F5-G/B 1600 Hz 0,05 Hz
3 reserved
4 F5-M 4000 min
-1
0,125 min
-1
5 F5-M 8000 min
-1
0,25 min
-1
6 F5-M 16000 min
-1
0,5 min
-1
7 reserved
8 F5-S 4000 min
-1
0,125 min
-1
9 F5-S 8000 min
-1
0,25 min
-1
10 F5-S 16000 min
-1
0,5 min
-1
For every frequency mode COMBIVIS uses an own Config-File. In the case of a mode
changeover all parameter information are read from the inverter and a new Config-File
is generated should it not already exist.
The switching frequency
(uF.11) must be adjusted at
least 10times higher than the
maximal possible output
frequency!
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