Yokogawa UP750 Data sheet

<<Contents>> <<Index>>

General Specifications

Model UP750 Program Controller (with Custom Computation)

GS 05E01B02-01E

■General

Model UP750 Program Controller is an intelligent, microprocessor based program controller that has the capacity of 300 program patterns, powerful control capability, custom computation function and a user-friendly display. The UP750 has many control modes as standard, and all these functions such as program setting function, control function, control computation function, signal computation, etc. can be configured by using the keys on the front panel. The instrument includes eleven types of predecided control strategies including cascade, temperature/ humidity, and more in single or dual loops. Auto-tuning control, an overshoot suppressing function "SUPER" and a heating suppressing function "SUPER 2" are standard.

■Main Features

• Extra-large digital display allows the indicated values to be read even from along distance. LEDs of 20mm height are used for the process variable display. This is a five-digit display for higher resolution.

• User-friendly full dot LCD display. Not only the target setpoint and control related parameters, but also a program pattern, deviation trend record or an analogue bargraph of control output value can be displayed on it.

• Huge capacity of 300 program patterns / 3000 segments. Applicable to a wide range of heat treatment , textile, environmental chamber and testing application.

•Eleven type of control function, including single-loop control, cascade control, loop control with PV autoselector, and custom computation function, enabling the operator to start control operation immidiately after simply entering the settings.

• The program pattern-2 retransmission function outputs a program pattern (control setpoint) by way of the retransmission output. This function is used in combination with retransmission output setup parameter RET 1 or RET 2, for which target setpoint-2 (SP2) should be selected, and is used for pattern transmission to another instrumennt (available for UP mode 1, 2, or 6).

• Custom Computation capability, which allows users’ own configuration for signals, enables them to realize such functions as complicated computation for input compensation or sequence logic for input/output. ( “PC-based Custom Computation Building Tool <model name: LL200> is necessary to use this function.)

• Universal input and output enable users to set or change freely the type of measured inputs(thermocouple, RTD, or DCV), measurement input range, type of control output(4 to 20 mA current, voltage pulse, or relay contact) etc. the front panel.

• Equipped with seven contact inputs and outputs each, which are further expandable up to 23 inputs and outputs each by adding contact I/O signal expansion modules.

• Various communication function are provided. Communication is possible with personal computer, programable logic controller, and other controllers.

UP750

UP750E

“E” indicates with the model with expanded functions.

■Functional Specifications

● Program Setting Function

“Program setting” allows the setting of a setpoint versus time. The instrument can store program patterns and change the pattern according to the operating status. One program pattern consists of several broken line (segment). The length of each segment can be set by segment time. Users can also configure the number of Repeats, Start/Stop, event outputs, etc.

Program pattern setting capacity: 300 maximum Number of segment/pattern: 99 maximum Number of segment: 3000 maximum (sum of segments for

all program patterns)

Number of event: 4000 maximum (sum of events for all

Number of program repeat time: 0 to 999, or unlimited

Segment time: 0 minute 0 s to 59 m i n u t e 5 9 s , o r 0 h 0

Mode of program pattern operation:

Switching between program patterns:

Target setpoint (SP)

segment time

program patterns)

repeats.

minute to 59 h 59 minute.

Start (RUN), stop (RESET), paused (hold), advance, can be executed by an external contact or instrument operation.

Achieved by contact input or instrument operation.

segment time No.1

Example of program pattern

segment time No.2

segment time No.5

GS 05E01B02-01E

4th Edition Oct. 2007 (KP)

<<Contents>> <<Index>>

Wait Function

The function to delay the progress of the program pattern when Process variable (PV) does not reach the change of the target setpoint (SP). The wait function has to parameters: a wait zone and a wait time.

Wait zone is a range of the deviation, and wait time is the time to wait for PV to reach the wait zone. If PV reaches the wait zone within a certain time (wait time), then the program will advance to the next segment. If PV does not reach the wait zone even after the wait time pass, then the program will eventually advance to the next segment.

Wait time: OFF, 0 minute 1 s to 99 minute 59 s or 0 h 1

minute to 99 h 59 s.

Wait zone: 0 to 10 % of measured input range width.

UP mode and Program Setting Function

UP mode with one channel of control: Single-loop control,

Cascade primary-loop control, Loop control with PV switching, Loop control with PV auto selector, Loop control with 2 universal inputs switching , Cascade control, Cascade control with 2 universal inputs. Note that Program pattern setting function is only available with the cascade primary-loop when Cascade control with 2 universal inputs are used.

UP mode with two channels of control: Dual-loop control,

Temperature and humidity control. The following functions are common to dual program setting functions ( “Program pattern RUN/RESET”, “The total number of program segment”) and “Segment time”.

Program Setting Function and PID Parameters

Switching

Controller can switch between PID parameter sets as a program pattern progresses.

Segment PID selection: PID-parameter numbers being

used can be selected on a segment basis.

Zone PID selection: PID parameter sets are selected

depending on the value of the applied PV input. Either the reference point method (reference point: a setpoint for switching between PID parameter sets) or the reference deviation method is used for the switching.

Reference point method: Divides the measurement input

range into as many as seven zones using a maximum of six reference points, and switching between PID parameter sets is done on a zone basis.

Reference deviation method: Switches between PID

parameter sets depending on whether the control deviation (DV) is within the given reference deviation or exceeding the deviation. This method has priority over the reference point method during operation.

Time Events

Time event is selected based on time in the program pattern

Number of time events: 8 points max. per segment (Max. 8

points for per segment the instrument with two control channels)

Time event display: 4 points (TME1, TME2, TME3,

TME4) Time event setting point: Start and duration (user settable) Setting time: 0 minute 0 s to 99 h 59 minute.

PV Events

PV event is the PV/DV alarm function which is configured in relation with the program pattern.

Number of PV event: max. 8 points per segment PV event display: 2 points ( PVE1, PVE2 )

The status of all the setting events can be seen in the operating display.

Event types: PV high limit, PV low limit, Deviation high

limit, Deviation low limit, Deenergized on deviation high limit, Deenergized on deviation low limit, Deviation high and low limits, High and low limits within deviation, Deenergized on PV high limit, Deenergized on PV low limit, SP high limit, SP low limit, Output high limit, Output low limit.

Configurable ranges of PV events:

PV alarm: –100 to 100% of measured input range DV alarm: –100 to 100% of measured input width Alarm hysteresis: 0.0 to 100% of measured input renge

width

Instrument Alarm Functions

The instrument alarm function outputs PV, deviation, SP, and other alarm without regards to the program pattern. Controller has four instrument alarm outputs.

Alam types: PV high limit, PV low limit, Deviation high

Alarm setting range:

PV/SP alarm: –100 to 100 % of measured input range. Deviation alarm: –100 to 100 % of measured input range

width. Output alarm: –5.0 to 105.0 % of output value. Alarm hysteresis: 0.0 to 100.0 % of measured input

range width.

Stand-by action: Stand-by action can be set to make PV/

deviation alarm OFF during start-up or after SP change until SP reaches the normal region.

Other alarm actions:

Sensor grounding alarm: Detects sensor deterioration and

outputs an alarm. Fault diagnostic alarm: Input burnout, A/D conversion

error, RJC error FAIL output: Abnormality in Software, Abnormality in

Hardware

Number of Instrument Alarm Settings: 4 points Number of Instrument Alarm Outputs: Max. 4 points

One of PV alarm/Deviation alarm, Fault diagnostic alarm, Sensor grounding alarm and Fail output can be output with contact output.

(Note): Refer to the later "Contact Outputs" in

Hardware Specifications.

Event Output Functions

Output contact: Max. 7 points of contact output can be used

to output the event/alarm (See ‘Contact output’) The following number are pre-configured as an initial setting upon shipment.

Time event: 4 points PV event: 2 points

Instrument alarm: 1 point Max. 23 points outputs are available when Expanssion Digital I/O connected.

Time events, PV events and Instrument alarm can be assigned for any contact output. Event and alarm status can be read by communication.

GS 05E01B02-01E 4th Edition Oct. 01, 2007-00

<<Contents>> <<Index>>

● Control Functions

UP mode

The following types of basic control structure can be set as the UP mode by the user.

Single-loop Control (UP mode 1): The most simple and

basic control function.

Cascade primary-loop control (UP mode 2): Output

tracking function and cascade control logic are provided. Suitable for the primary- loop cascade control.

Cascade control (UP mode 4): Dual control functions.

Whole Cascade control can be executed with a single instrument.

Loop control with PV switching (UP mode 6): Two

measured inputs are switched for control depending on the status of contact input or measured input.

Loop control with PV auto-selector (UP mode 7): Two

measured inputs are automatically selected for control with a high, low, average, or temperature-defference value selector.

Dual-loop control (UP mode 11): Dual control function is

available in a single instrument to control two loops.

Temperature and Humidity control (UP mode 12):

Temperature control and Relative Humidity control are available in a single instrument.

Cascade control with two universal inputs (UP mode 13):

Cascade control with using two universal measured inputs.

Loop control with PV switching and two universal inputs

(UP mode 14): Loop control with PV switching and two universal inputs available as mesured inputs.

Loop control with PV auto-selector and two universal

inputs (UP mode 15): Process variable for loop control is automatically selected from two or three measured inputs by an internal selector, using two universal inputs and an auxiliary analog input. When two universal inputs are configured as measured input, auxiliary analog input can be used for a remote setpoint input.

Custom computation control (UP mode 21): Can be

provided by the user using the optional LL200 custom computation building tool.

● Control Computation Functions

In each UP mode, the following control types can be selected.

Continuous PID control, Time-proportional PID control, Relay ON/OFF control, Heating/Cooling control.

Target setpoint and PID parameter: Maximum eight sets of

target setpoint and PID parameters can be set and stored in a instrument. For Cascade control and Dual-Loop control type, eight sets for each main and slave are available.

Auto-tuning: standard

Possible to activate auto-tuning for both loops of Cascade control, Dual-loop control and Temperature and humidity control.

“SUPER” function: Overshoots generated by abrupt

changes in the target setpoint or by disturbances can be suppressed.

“SUPER 2” function: This function stabilizes the state of

control that is unstable due to hunting, etc.

without requiring any change in PID constants, when the load and/or gain varies greatly, or when there is a difference between the characteristics of temperature zones.

Preset output function: When the instrument is in reset

mode, measured input is burnout, or abnormality is found in an input circuit, users’ preconfigurable preset value is output as a control output.

Control cycle time: Each cycle time can be selected under

the following conditions

100 ms: Available when model code is UP750-0 ■.

200 ms: Available with UP750-5 ■, or when the

amount of computation module of Custom computation function is less than 30.

500 ms: Available when the amount of computation

module is 50 or more.

(Set value on shipped from the factory: 200 ms)

Operation Mode Switching

(Note:Communication enables all the following mode

switching to be excuted.)

AUTO/MANUAL switching: Bump-less switching is

available. Switching between AUTO and MANUAL mode can be realized by instrumment operation or by external contact, and external contact switching has priority to instrumment operation.

RUN (PRG)/STOP (RESET) switching: Switching can be

realized by the front key or external contact, and external contact switching takes priority to the front key. Bump-less switching for RESET to PROG is available. In PRG mode, control computation is activated. In RESET mode, control computation ceases and preset output value is output as a control output, while other functions operates normally.

CASCADE/Local SP switching: Switching can be realized

by instrument operation or external contact, and external contact switching takes priority to instrument operation. Available when UP mode is set to “Cascade control” .

Control Parameter Setting Range

Proportional Band: 0.1 to 999.9%

0.0 to 999.9% (for heating/cooling PID

control), 0.0% available for ON/OFF control. Integral time: 1 to 6,000 s, or OFF(for Manual reset) Derivative time: 1 to 6,000 s, or OFF ON/OFF control hysteresis: 0.0 to 100.0% of measured

input range width Preset output value: –5.0 to 105.0% of output range (0mA

or less cannot be output) Output limiter:

Setting range: –5.0 to 105.0% for both high and low

limits. However “low limit setpoint < high limit setpoint” must be satisfied. In case of heating/cooling PID control, upper limiter for heating and upper limiter for cooling.

Shutdown function: In manual mode operation, up to

approx. 0mA can be output. (For 4 to 20 mA

control output only) Rate of change limiter for output: OFF, or 0.1 to 100.0%/s Dead band for heating/cooling control: –100.0% to 50.0%

of output value

<<Contents>> <<Index>>

● Configuration of Input/Output Signal

Measured Input Computations

Bias (–100.0 to 100.0%), First lag filter (OFF, time constant 1 to 120 s), Square root extraction (for voltage input only, Input low cut 0.0 to 5.0%), 10-segment line linearizer/bis function, relative humidity calculation for wet/dry bulb (for Temperature & Humidity control type only)

Auxiliary Input Computaitons

Bias (-100.0 to 100.0%), Filter (off, time constant 1 to 120 s), Square root extraction (Input low-cut 0.0 to 5.0%).

Custom Computations

LL200 Building tool is necessary for using Custom computation function.

Combining computation function modules allows such functions as user configuration of input/output signals, operation mode switching via discrete input, status output via discrete output, and so on.

Computation function module: Addition/substruction/

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, AND(word), OR(word), Shift word, Sum, Timer, Ten-segment linearizer 1/ 2, Inverse ten-segment linearizer 1/2, Curve linearizer 1/2, Ratio, First order lag filter, Conversion to engineering unit, Selection of PV from two inputs, Temperature and humidity calculation, Fluid Temperature/ Pressure compensation, MV selection1/2, Conversion of display value, Parameter setting, Data display1/2, Special discrete output calculation, Assignment of output terminals 1/2, etc.

Maximum Number of Module to be used:

50 for input Custom computation, 50 for output Custom computation

● Display and Operation Function

PV Display Unit

Either PV1 or PV2 can be displayed on 5 digit digital display unit and switched one from the other.

(Digit of display: 4 or 5 digit) For Thermocouple and RTD input, the display of the digits lower than decimal point can be off.

The display range is -19999 to 30000 and the display span is 30000 or less. [750.00 appearing in the product photograph on page 1 cannot actually be displayed.]

LCD Display Unit

Some data are displayed on LCD display unit. Each screen is called “display”.

Five types of display are provided; Operating display, Operating parameter setting display, Program parameter setting dispiay, Setup parameter setting display and SELECT display.

Each screen of LCD display unit contains:

Operating display: Necessary data for operation is

displayed according to UP mode. Such items as Program pattern, Setpoint, Control output, control output bar, deviation trend, is displayed. Time base of deviation trend is 120 s to 20 h.

Operating parameters setting display: The Operating

parameters, which are mainly changed during operation, such as PID constant, are displayed. The explanation of each parameters is provided.

Program Parameters Setting display:

Generation of Program pattern, and parameters for Wait Function and Repeat Function are displayed.

Setup parameter setting display: The Setup parameters to

configure functions of the instrument before starting operation are displayed. The explanation of each parameters is provided.

SELECT display: Up to 5 displays which are frequently

accessed can be selected from Operating parameter setting display and Setup parameters setting display.

Status Lamps

Event indicating lamp: 7 points (TME1, TME2, TME3,

TME4, PVE1, PVE2, AL) Operation mode indicating lamp: PRG (Program opera-

tion), RST (Program operation reset), HLD

(Program operation hold), LOC (Local

operation), MAN1 (Loop1 in Manual mode),

MAN2 (Loop2 in Manual mode), CAS

(Cascade operation).

Operation Key

▲, ▼ key: Increase/decrease the value of Setpoint or

other parameters which appear on LCD display. DISP key: Switch data to be showed on LCD display SET/ENT key: Set/change the setting value, switch

information to be showed on LCD display,

switch operation mode other than AUTO/

MAN. 䉮 PT No. 䉭 key: Select program pattern No. RUN key: Start the program operation RESET key: Stop and reset the program operation.

Security Function

Key lock from parameters setting and, operation can be inhibited by a password.

● Communication Functions

( For UP750- ■1 only )

The instrument allows two communication ports and five types of communication protocols, and allows the simultaneous communication with two different instruments. The instruments to communicate are such as a personal computer, a programmable logic controller, other UT750/UP750, and Digital I/O expansion module.

Communication Protocol

Computer link communication: Communication protocol

with a personal computer, PLC communica-

tion modules, and more. Ladder communication (BCD serial communication):

Communication protocol with the ladder

program on some programmable logic

controllers. MODBUS communication: Communication protocol with

a personal computer or PLC. Coordinated operation protocol: Protocol to realize

Coordinated operation with other GREEN

SERIES controller. UP750 is always

configured as a master unit.

GS 05E01B02-01E 4th Edition Oct. 01, 2007-00

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