Emerson 3402 User Manual

Introduction
Parameter
x.00
Parameter
description format
Keypad and
display
Serial
communications
CT Modbus
RTU
PLC Ladder
programming
CTSoft Menu 0
Advanced parameter
descriptions
Menu 12
Commander SK Advanced User Guide 159
Issue Number: 9 www.controltechniques.com
This parameter and Pr 12.06 are used to invert the logic states of the threshold output if required.
This parameter and Pr 12.07 define the parameter which is to be controlled by the threshold parameter. Only parameters which are not protected can
be set up as a destination. If a non valid parameter is programmed the output is not routed anywhere.
These parameters and Pr 12.08 and Pr 12.09 define the parameters which are to be switched by the variable selector block. These can be bit
variables or non bit variables. If programming a reference to a variable source select, if the reference is a whole number, then the variable source
treats the whole number as a percentage, e.g. 5.0Hz = 10% of reference.
The output of the variable select can be changed by the mode as in the following table:
12.26 Threshold detector 2 output invert
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range OFF(0) or On(1)
Default OFF(0)
Update rate 21 ms
12.27 Threshold detector 2 destination
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 2 1111
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on drive reset
12.28 Variable selector 2 source 1
12.29 Variable selector 2 source 2
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
2 1111
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on drive reset
12.30 Variable selector 2 mode
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 to 9
Default 0
Update rate 21 ms
Mode value
(Pr 12.30)
Action Result
0 Select input 1 output = input1
1 Select input 2 output = input2
2 Add output = input1 + input2
3 Subtract output = input1 - input 2
4 Multiply output = (input1 x input2) / 100.0
5 Divide output = (input1 x 100.0) / input2
6 Time constant output = input1 / ((control param)s + 1)
7 Linear ramp
output = input1 via a ramp with a ramp time of (control param)
seconds from 0 to 100%
8 Modulus output = | input1 |
9 Raise to power
output = input1
control param (0.01 - 0.03)
control = 0.02: output = input1
2
/ 100
control = 0.03: output = input1
3
/ 100
2
control has any other value: output = input 1

Emerson 3402 Specifications

General

Brand	Emerson
Model	3402
Category	Controller
Language	English