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 15
I/O options
Commander SK Advanced User Guide 181
Issue Number: 9
.
In modes 2 and 3, a current loop loss trip will be generated as SL.Er if the current input falls below 3mA, and Pr 15.50 will be set to a 2.
If 4-.20 or 20-.4 modes are selected, Pr 15.03 will switch from OFF to On to indicate that the current reference is less than 3mA.
If Bi-Polar operation is required, the -10V reference must be generated and supplied by an external power supply.
Terminal T3 is a voltage/current output. The setting of this parameter configures the terminal to the required mode.
This parameter displays the level of the analog signal present at analog input 1.
In voltage mode, this is a bipolar voltage input where the input range is -10V to +10V.
In current mode, this is a unipolar current input having a maximum measurable input of 20mA. The drive can be programmed to convert the measured
current to any one of the defined ranges in Pr 15.38. The selected range is converted to 0 - 100.0%.
This parameter is used to scale the analog input if so desired. However in most cases it is not necessary as each input is automatically scaled such
that for 100.0%, the destination parameters (defined by the settings of Pr 15.43) will be at maximum.
This parameter can be used to invert the analog input reference (i.e. multiply the input scaling result by -1)
Value Display Function
0 0-20 0 to 20mA
1 20-0 20 to 0mA
2 4-20 4 to 20mA with trip on loss
3 20-4 20 to 4mA with trip on loss
4 4-.20 4 to 20mA with no trip on loss
5 20-.4 20 to 4mA with no trip on loss
6 VoLt -10 to +10 volts
15.39 Analog output 1 mode (Terminal T3)
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 111
Range 0-20(0), 20-0(1), 4-20(2), 20-4(3), VoLt(4)
Default 0-20(0)
Update rate Background read
Value Display Function
0 0-20 0 to 20mA
1 20-0 20 to 0mA
2 4-20 4 to 20mA
3 20-4 20 to 4mA
4 VoLt 0 to +10V
15.40 Analog input 1 level (Terminal T2)
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
11 1 1
Range -100% to +100%
Update rate Background write
15.41 Analog input 1 scaling (Terminal T2)
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
3 111
Range 0.000 to 4.000
Default 1.000
Update rate Background read
15.42 Analog input 1 invert (terminal T2)
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 Background read
NOTE

Emerson 3402 Specifications

General

Brand	Emerson
Model	3402
Category	Controller
Language	English