Emotron VSB Series User Manual

Emotron VSB Instruction Manual Chapter 6 Specification of Parameters
C3-03
AO offset
Range: -100.0% to 100.0%
Factory default: 0.0%
C3-04
AO gain
Range: -2.000 to 2.000
Factory default: 1.000
When users need to chang AO measurement range or correct the error of the meter, it can be
realized by setting of C3-03 and C3-04. If using factory default, 0~10V (or 0~20mA) of AO
corresponds to “0~maximun”. See table 6-4 for details. By expressing standard output of AO as
x, the adjusted AO1 output as y, the gain as k, and the offset as b (100% of offset corresponds
to 10V or 20mA), there is the equation: y=kx+b
Example:
C3-00 is set to 2: output frequency. Standard AO output: AO outputs 0V when output frequency
is 0, and outputs 10V when output frequency is the maximum frequency. If AO is requested to
output 2V when output frequency is 0Hz, and to output 8V when output frequency is the
maximum frequency.
There is: 2=k×0+b; 8=k×10+b. Through these two equations, we obtain: k = 0.6, b = 2V, i.e.
C3-03 is set to 20.0% while C3-04 is set to 0.600.
Additional examples are shown as below:
Fig. 6-26 AO gain influence on output
Fig. 6-27 AO offset influence on output
AO1调整后输出
AO1标准输出
10V
0
10V
5V
(C3-04) = 100%
(C3-04) = 200%
AO1调整后输出
AO1标准输出
10V
0
10V8.5V
(C3-03) = 0%
(C3-03) = 15%
1.5V
AO output after adjustment
AO standard output
AO output after adjustment
AO standard output
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Emotron VSB Series Specifications

General

Brand	Emotron
Model	VSB Series
Category	Controller
Language	English