KEB COMBIVERT F4-F Applications Manual page 141

Set Value and Ramp Adjustment
Setpoint setting : through activation of digital inputs
At SP.0 = 15 and 16 negative setpoint values are internally set to 0
and the direction of rotation is adjusted digital by way of parameter
SP.3 or terminal forward and reverse.
At SP.0 = 17 the direction of rotation is defined through the sign of
the setpoint.
Adjustments and method of operation of the motor
potentiometer function are described in Chapter 6.8
„Special functions".
Setpoint setting : -10V ... +10V (REF1)
At SP .0 = 18 the direction of rotation is defined only by the sign of
the setpoint.
The setpoint is limited only by the absolute maximum speeds (SP.8
/ SP.9).
Functions and restrictions concerning the direct setpoint
setting are described in chapter 6.4.2.
With the adjusted setpoint limits (SP.4...SP .7) the speed range 0% ( ^ = minimum speed) up to 100%
Setpoint addition
( ^ = maximum speed) is also defined for the AUX-internal setpoint signal.
(AUX function
An.13)
1. If the digital rotation setting (parameter SP .3 or terminal strip) is selected with parameter SP .0 the
adjusted setpoint signals are added up sign-correct. The result forms the valid setpoint speed.
Negative values in the result are set to zero.
Example:Setpoint signal at REF1:
2. If with parameter SP .0 the rotation setting is selected through the sign of the setpoint, then the
adjusted setpoint signals are added up sign-correct. The sign of the result defines the direction of
rotation and the sum of the result represents the valid setpoint speed.
Example:Setpoint signal at REF-internal: + 3 V
3. Parameter SP .0 = 18 (direct analog setpoint setting), with this setting the AUX-function has no
effect. The setpoint is defined only by the setpoint signal at REF1.
© KEB Antriebstechnik, 1999
All Rights reserved
Setpoint signal at AUX (REF2): - 2 V
Valid setpoint speed:
Setpoint signal at AUX-internal: - 5 V
Valid setpoint speed:
Name: Basis
KEB COMBIVERT F4-F
Functional Description
Fig. 6.4.7 Setpoint motor potentiometer
+n [U/min]
SP.5
-100 %
of SP.26 SP.4
Input dec. active
Minimum speed
Maximum speed
-n [U/min]
Fig. 6.4.8 Setpoint analog direct
+n [U/min]
SP.8
-10V
-100 %
REF1 [V]
-3000 U/min
Absolute
Maximum speed
-n [U/min]
+ 3 V
+ 1 V corresponds to 10% of the speed range
with
preset digital direction of rotation
- 2 V corresponds to 20% of the speed range
with
direction of rotation reverse
Date
16.03.99
ANTRIEBSTECHNIK
Maximum speed
Minimum speed
Input inc. active
SP.6 (SP.4) 100 %
of SP.26
SP.7 (SP.5)
Absolute
Maximum speed
3000 U/min
REF1 [V]
10V
100
%
SP.9 (SP.8)
Chapter Section Page
6 4 9