3
ANTRIEBSTECHNIK
6
2
3
KEB COMBIVERT F4-C
Name: Basis
6
27.01.98
Section
Page
Date
©
KEB Antriebstechnik, 1997
All Rights reserved
Chapter
Functional Description
Analog In- and Outputs
6.2.1
Short Description
Analog Inputs
6.2
Analog In- and Outputs
ru.22
ru.23
ru.45
An.12
An.8
An.2
An.27
An.3
An.4
An.5
An.9
An.10
An.11
An.23
An.24
An.25
An.6
0...10V
0...20mA
4...20mA
An.22 / Bit7
An.7
An.1
An.26
±10V
±100%
±100%
400%
-400%
400%
-400%
400%
-400%
0...100%
The KEB COMBIVERT has three analog inputs.
±REF
- external differential voltage input with high internal resistance
REF
- external multifunction input of current and voltage signals
Option
- internal input, used for optional hardware
After selection of the input signal at the REF-input the analog inputs will be smoothed
by an electronic filter with mean-value generation. In case of factory setting the
smoothed signals are now available to the characteristics amplifier. For special
applications a buffer memory can be activated, storing the last signals received
before the failure. With the characteristics amplifier x-and y offset and gain of the
input signals can be changed. To avoid voltage fluctuations and ripple voltages
around the zero point, the analog signal can be faded out up to 10% around the
zero point. At the output of the block diagram An.12 determines which analog signal
shall serve as reference or as aux-value. With An.22 the buffer memory can be
adjusted, the display parameters (ru.22, ru.23, ru.45) can be switched over and
the analog option can be switched to ±REF-simulation. The limit of the internal
values is ±400%.
Picture 6.2.1 Principle of analog inputs
X1.8
±REF
X1.9
X1.17
REF
Option
0...±max.
Filter
Filter
Filter
Storage
An.22 Bit 1 a. 3
Storage
An.22 Bit 0 a. 2
Storage
An.22 Bit 4 a. 5
An.22 / Bit 6
Set value strobe
(see digital Inputs)
REF-int.
AUX-int.
Option-int.
Displays
Analog Inputs
