9
ANTRIEBSTECHNIK
6
4
9
KEB COMBIVERT F4-C
Name: Basis
28.01.98
6
©
KEB Antriebstechnik, 1997
All Rights reserved
Functional Description
Set Value and Ramp Adjustment
Section
Page
Date
Chapter
+f [Hz]
-f [Hz]
409,5875
oP.6*
1
(oP.4)
oP.4
oP.8
oP.5
oP.9*
1
(oP.8)
oP.7*
1
(oP.5)
+100
-100
-409,5875
absolute maximum
frequency reverse
6.4.3
Set Value Limits
Following limit values can be preset:
Set value [%]
Set value [%]
Minimum frequency
forward
Maximum frequency
forward
absolute maximum frequency
forward
Maximum
frequency reverse
Minumum
frequency reverse
*1
If the value „off“ is adjusted in these parameters (limit value direction of rotation
reverse) then the adjusted values in the parameters for direction of rotation forward
(oP.4, oP.5 and oP.8) apply to it.
The minimum and maximum frequencies limit the set value, that is transmitted to the
ramp generator for generating the output frequency. At analog set value setting the
characteristic is made from it (0% minimum frequency; 100% maximum frequency)
Separate limits can be adjusted for both directions of rotation. If no values are set for
rotation „reverse“ then the values for rotation „forward“ are valid.
Values for „Forward“
Setting range:
oP.4 = 0...409,5875 Hz
Standard = 0 Hz
oP.5 = 0...409,5875 Hz
Standard = 70 Hz
oP.6 = oFF, 0...409,5875 Hz
Standard = oFF
oP.7 = oFF, 0...409,5875 Hz
Standard = oFF
Minimum- / Maximum
frequency
(oP.4...oP.7)
The absolute maximum frequency forward (oP.8) and reverse (oP.9) limit the possible
output frequency of the inverter. Since the set value is always calculated for the
maximum frequencies (oP.5, oP.7) it is possible, inspite of different output frequencies,
to adjust the characteristic of the analog set value to the same ascent for both directions
of rotation (see picture 6.4.3.b). If by way of set changeover the deceleration is done
from a higher frequency to the adjusted absolute maximum frequency, the preadjusted
deceleration time has no effect.
Absolute maximum
frequency
(oP.8, oP.9)
Picture 6.4.3
Set value limits
