Voltage-/Frequency Characteristic Adjustment; Control Type (Ud.2) And Max Frequency Mode (Only F5-B); Frequency Mode - KEB COMBIVERT F5 MULTI Applications Manual

U/f-Characteristic Adjustment
6.5 Voltage-/
Frequency
Characteristic
Adjustment
6.5.1 Control Type
(ud.2) and Max

Frequency Mode

(only F5-B)
The switching frequency
(uF.11) must be adjusted at
least 10times higher than the
maximal possible output
frequency!
High-Torque-Modus
© KEB Antriebstechnik, 2002
All rights reserved
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).
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
0 F5-C/G/B
1 F5-C/G/B
2 F5-C/G/B
3 F5-G
4 F5-M
5 F5-M
6 F5-M
7 F5-M
8 F5-S
9 F5-S
10 F5-S
11 F5-S
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.
For applications with maximum torque with small output frequency a new mode was
introduced.
Special characteristics at High-Torque-Modus:
• default of torque in steps 1 Nm; the display is in in 0,01 Nm
• default of the rated speed /-frequency in 0,125 min
• the EMK constant for synchronous motors can be default up to 32 kV / 1000 min
that means rated speeds of the motors up to 12,5 min
Name: Basis
KEB COMBIVERT F5
Functional Description
Maximal frequency
400 Hz
800 Hz
1600 Hz
50 Hz
4000 min -1
-1
8000 min
16000 min -1
500 min -1
-1
4000 min
8000 min -1
-1
16000 min
-1
500 min
-1
/ 0,0125 Hz.
-1 .
Date
04.05.04
Resolution
0,0125 Hz
0,025 Hz
0,05 Hz
1,56 mHz
0,125 min -1
-1
0,25 min
0,5 min -1
0,0156 min -1
-1
0,125 min
0,25 min -1
-1
0,5 min
-1
0,0156 min
Chapter Section Page
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6
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