KEB COMBIVERT F5 BASIC Applications Manual page 162

Functional Description
Fig. 6.4.5.a Setpoint limits
Setpoint [%]
Maximal
frequency reverse
= abs. max.
frequency reverse
6.4.6 Setpoint
Computation
Chapter Section Page
6 4 12
(oP. 10)
(oP.14)
-100%
The unit differentiates between two setpoint adjustments:
- the setpoint adjustment
With the adjusted setpoint limits the frequency range 0%...100% is defined.
in this case the adjustment 0% corresponds to the minimal frequency and
100% to the maximal frequency. The frequency is calculated according to
following formula:
positive setpoint [Hz] = oP.6 + (setpoint adjustment [%] x
negative setpoint [Hz] = oP.7 + (setpoint adjustment [%] x
The frequency is limited through the corresponding maximal frequencies.
- the absolute setpoint adjustment, i.e. the setpoint is directly adjusted as
frequency and limited through the corresponding minimal and maximal
frequencies as well as through the absolute maximal frequency.
The setpoint sources are assigned as follows:
Setpoint adjustment in percent
Terminal strip (analog setpoint)
Keyboard/Bus in %
Motorpoti
PID-controller
Date Name: Basis
06.02.02 KEB COMBIVERT F5-G / B
Set Value and Ramp Adjustment
+f [Hz]
+100%
(oP.11/oP.15)
-f [Hz]
Absolute setpoint adjustment
Keyboard/Bus absolute
Set speed value SY.52
Speed detection
©
Maximal frequency
forward
Absolute maximal frequency
forward
Setpoint[%]
oP.10-oP.6
)
100%
oP.11-oP.7
)
100%
KEB Antriebstechnik, 2002
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