UNI-T UT321 Specifications download pdf (Page 8)

14 15

Excellent Control, Multifunction Controllers

ALM lamp

C / A / M mode keys

SV bar display

PV bar display

SV setting keys

MV operation keys

MV bar display

Status indicator lamps:

Display loop-2 PV(PV 2),

deviaton status (, , ), alarm status

(AL 1, 2, 3, 4), cascade operation (CAS),

remote operation (REM1, REM2),

manual operation (MAN1, MAN2), and

operation stop (STP)

Light loader interface:

Communication port for

parameter setting by personal

computer and custom

computation downloading

PV/SP Data display

PV Inputs

Indication accuracy

Auxiliary Analog Input

Control scan period

Control loops

Number of Setpoint (SP)

Control Algorithm

SUPER, Auto tuning

Custom Computation

Control Outputs (MV)

Auxiliary Analog Output (4 to 20mA)

Loop Power Supply

Digital Inputs

Digital Outputs

RS485 Communication Protocol

Front Protection

General Approvals

Power Supply, Consumption

Size, weight

Ambient T, Limits RH

UT750, US1000 Specification Table

UT750

5 digits / 5 digits with LCD display

2 universal inputs (TCs, RTDs, mV, V)

0.1% 1digit

1 point

50, 100, 200, 500ms

1 or 2(cascade, dual)

ON/OFF, 3 position, PID (Continuous, Time-proportional), Heating & Cooling, Position-proportional PID

SUPER, SUPER2, AT

Standard

Select from 2 sets of Relays, Voltage Pulses or 4 to 20mA

1 point, 2 points when MV is relay output

1 point of 15V ( Cannot use with auxiliary analog output )

2 or 7

3 or 7

MODBUS, PC-link, Ladder, Coordinated Operation

IP55

UL, CE, CSA

90 to 264 V AC, max. 20VA

96(W)*96(H)*100(D)mm, 1kg

0 to 50 : , 20 to 90%RH

US1000

5 digits / 5 digits with Bar Graphs

SUPER, AT

Option

2 points of 24V

MODBUS, PC-link

IP65

CE, CSA, FM-non incendive

90 to 264 V AC, max. 25VA

72(W)*144(H)*149(D)mm, 0.8kg

Model and Suffix Codes

Model

UT750

Type

Options

Digital indicating controller

Single-loop type

Position-proportional type

Dual-loop type

None

Communication functions, auxiliary analog(remote) input

Suffix Code Description

-0

-1

-5

Model

US1000

Type

Options

Process controller

Basic type

Enhanced type(with custom computation)

Position-proportional type(with custom computation)

RS485 communication



LPS:Loop power supply for transmitter.



The two contact points in the US1000-21 relay item are the relay output and feedback input.

Universal

Voltage

Current

Voltage

Relay



Input

Output



LPS

Suffix Codes Description Analog output ContactAnalog input

-00

-11

-21

/A10

DI1 to DI7

DO1 to DO7

Contact input/output available

Contact outputContact input

 Custom Computation for Sophisticated Control

Custom computation allows simple operation sequences and signal computations specific to the application to be speci-

fied, which the standard controller mode cannot deal with.

Input/output-related computations can be customized using 65 types of computation modules including arithmetical four-

rule operations, logical operations, special calculations,etc.



Controllers Equip Custom Computation

Model UT750 Indicating Controller

Model US1000 Process Controller, except US1000-00

Model UP750 Program Controller



Block Diagram of Custom Computation

The custom computation is executed in INPUT Block and OUTPUT Block.

Max.number of custom computation modules:

UT750,UP750 50 modules for each Block

US1000 30 modules for each Block

 Computation Modules

Addition / subtraction / multiplication / division, Processing absolute value

/ reciprocal, Selecting maximum / minimum / average, Keeping maximum

/ minimum value, Keeping value, Rate of change limiter, Switch, Limiter,

Constant, AND, OR, Exclusive OR, NOT, Latch, Comparison (











), Not equivalent, Within range, Sum, Timer, Ten-segment linearizer,

Curve linearizer, Ratio, First order lag filter, Selection of PV from two

inputs, Temperature and humidity calculation, Parameter setting.

 Custom Display Function

Data displayed on front panel, can be configured by using Custom Dis-

play Configuration Function.

 Applications

Temperature & Pressure Compensation for Gas Flow Boiler Conbustion Control

Example for UP750

SQRT

FIC

PID

Temp

Compe.

Flow rate signal

retransmission

Pressure

transmitter

Differential

transmitter

Flow nozzle

Pt100

4 to 20mA

AIN2

AIN3

AIN1

Pressure

Compe.

UT750

Fuel flow

controller

Air flow

controller

Cross limit control

Boiler master controller

Boiler master signal

Boiler pressure

Flow pressure

Fuel flow Air flow

Module

Control 1

Module

Program control

Current/Pulse output

Analog input Contact input

Contact output

Custom

computation

Custom

computation

Module

Module Module

Module

Control 2

Module

INPUT BlockINPUT Block

OUTPUT BlockOUTPUT Block

1 2 3 4 5 6 7 8 9 10 11

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UNI-T UT321 Specifications Page 8

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