Setpoint, rotation- and ramp setting
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.4 - 13
7
7.4.6 Setpoint limits
Following limit values can be preadjusted:
Figure 7.4.5 Setpoint limits
+n [rpm]
4000
oP.7*
1
(oP.6)
oP.6
oP.14
oP.10
oP.15*
1
(oP.14)
oP.11*
1
(oP.10)
+100
-100
-4000
absolute max.setpoint
forward
max. setpoint forward
min. setpoint forward
Setpoint [%] Setpoint [%]
min. setpoint reverse
max. setpoint reverse
absolute max. setpoint reverse
-n [rpm]
*1
If the value "=For" is adjusted in these parameters (limit values rotation direction reverse), then the adjusted
values for rotation direction forward (oP.06, oP.10 and oP.14) are valid.
Min./ max. reference values (oP.06, oP.07, oP.10, oP.11)
In case of analog and percentaged setpoint adjustment in percent the minimal and maximal frequencies form
the characteristic for the frequency calculation (0% = min. reference; 100% = max. reference). In case of digi-
tal setpoint adjustment or xed value the minimal and maximal frequencies limit the setpoint. Separate limits
can be adjusted for both rotation directions. If the value "For" is adjusted for rotation direction "Reverse", then
the values for "Forward" are valid.
Setting range: oP.06: 0...4000 rpm Default: 0 rpm
oP.10: 0...4000 rpm Default: 2100 rpm
oP.07: =For, 0...4000 rpm Default: =For
oP.11: =For, 0...4000 rpm Default: = or
Absolute maximum references (oP.14, oP.15)
After the min./max. references the setpoint is limited by the absolute max. references and then output to the
ramp generator. Since the analog setpoint is always calculated in relation to the max. reference (oP.10, oP.11)
it is possible (despite different absolute max. references) to adjust the characteristic of the analog setpoint with
the same ascent for both rotation directions (see Fig.7.4.5.a). If in oP.15 value "=For" is adjusted, the absolute
maximal speed of oP.14 is valid for both directions of rotation.
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