6
12
KEB COMBIVERT F5
4
Name: Basis
04.05.04
Chapter
Section
Page
Date
©
KEB Antriebstechnik, 2002
All rights reserved
Functional Description
Technology Control
PID Output frequeny at 100%
(cn.14)
This block converts the percental controller output value into a frequency. The
adjustment of cn.14 determines which frequency is output at 100 % controller output
value. A frequency from -400.0...400.0 Hz (dep. on ud.2) can be adjusted. At cS.0 bit
0...1 = 1 the output value added with the ramp output frequency (ru.2) forms the
output frequency (ru.3).
The whole controller, the I-component as well as the controller fade-in can be reset via
a digital input. When resetting the masking the fade-in time is valid. For that purpose
the decimal value of the corresponding inputs according to the table below has to be
entered.
cn.11 PID reset / input selection
cn.12 I reset / input selection
cn.13 Fade in reset / input selection
Reset by way of digital inputs
(cn.11...13)
With cn.10 it is possible to set the reset conditions for the PID-Controller. Thus simple
speed regulations can be realized for both directions of rotation.
cn.10 Function
0
PID-Controller is not reset
1
PID-Controller = 0 (is continously reset)
2
PID-Controller is reset in case of modulation off
For speed regulations adjust the value „2“, with that the I-component of the controller
is reset at LS or nOP. The value „1“ serves mainly for the start-up, to reset the controller
manually.
PID-Reset condition (cn.10)
Bit -No. Decimal value Input
Terminal
0
1
ST (prog. input „control release / reset“)
X2A.16
1
2
RST (prog. input „reset“)
X2A.17
2
4
F (prog. input „forward“)
X2A.14
3
8
R (prog. input „reverse“)
X2A.15
4
16
I1 (prog. input 1)
X2A.10
5
32
I2 (prog. input 2)
X2A.11
6
64
I3 (prog. input 3)
X2A.12
7
128
I4 (prog. input 4)
X2A.13
8
256
IA (internal input A)
none
9
512
IB (internal input B)
none
10
1024
IC (internal input C)
none
11
2048
ID (internal input D)
none
(only F5-G/B)