Rockwell Automation 1336T FORCE Series B - Manual (Page 114)

Chapter 4
Startup
4–23
Analog I/O Parameter Configuration:
When you have accomplished the hard wiring of the Analog I/O to the
Standard Adapter Board terminals as was detailed in Chapter 2, it is still
necessary to set up the parameters in the Drive to allow for data flow
between the Adapter Board and the Drive. Each Input/Output has
parameters associated with it as shown in Figure 4.7. Set-Up parameters
are used to program the Standard Adapter Board functions, such as Scale
and Offset. Configuration parameters allow the Standard Adapter Board to
communicate with the Drive, and must be linked to analog inputs and
outputs.
Each analog input and output is associated with a scaling and offset set-up
parameter. These parameters must be adjusted for each analog device.
The Drive works with internal drive units. Each parameter is a 16 bit word,
which allows a range of
±
32767 internal units. The Drive is scaled so that
4096 is equal to one unit of the quantity being regulated. A
±
10V DC
signal applied to an analog input is converted to a digital value of
±
2048,
providing a total range of 4096. When calibrating analog inputs, a scale
factor is applied to this value, to provide an effective range of
±
32767
16
×
2048. The offset parameter determines the offset in volts, applied to
the raw analog value before the scale factor is applied. This allows you to
shift the range of the analog input by
±
4096 drive units (
±
20 volts).
Figure 4.7.
Analog I/O Links
5–12V Pulse Input
+10V Ref
TB5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
355
356 Offset
357 Scale
358
361
–10V Ref
Common
+
–
In1
TE
TB6
1
2
3
4
5
6
7
8
370
373
376
+
–
Pot In put
TE
Main+
Main –
4–20mA Input
TE
+
–
Analog +
Out 1
+
–
TE
TE
+
–
+
–
395 PPR
396 Edge
397 Scale
398
Offset
399
Standard Adapter
Power
Supply
In1
359 Offset
360 Scale
10V Input 10V Input
In1
In1
362 Offset
363 Scale
Pot Input
mA Input
Pulse Value
In1
In1
371 Offset
372 Scale
Analog Output #1
Analog Output #2 Analog +
Out 2
mA Output
374 Offset
375 Scale
mA Out + 377 Offset
378 Scale