PR electronics 2281 Manuale utente

PERFORMANCE

MADE

SMARTER

Product manual

2281

Ramp generator

No. 2281V103-UK

From serial no.: 211385001

6 Product Pillars

to meet your every need

With our innovative, patented technologies, we make signal conditioning smarter and simpler. Our portfolio is composed of six

product areas, where we offer a wide range of analog and digital devices covering over a thousand applications in industrial

and factory automation. All our products comply with or surpass the highest industry standards, ensuring reliability in even

the harshest of environments and have a 5-year warranty for greater peace of mind.

Individually outstanding, unrivalled in combination

Our range of temperature transmitters and sensors provides the highest level of signal integrity from the

measurement point to your control system. You can convert industrial process temperature signals to analog, bus or

digital communications using a highly reliable point-to-point solution with a fast response time, automatic self-

calibration, sensor error detection, low drift, and top EMC performance in any environment.

Our unique range of single devices covering multiple applications is easily deployable as your site standard. Having

one variant that applies to a broad range of applications can reduce your installation time and training, and greatly

simplify spare parts management at your facilities. Our devices are designed for long-term signal accuracy, low

power consumption, immunity to electrical noise and simple programming.

We provide inexpensive, easy-to-use, future-ready communication interfaces that can access your PR installed base

of products. All the interfaces are detachable, have a built-in display for readout of process values and diagnostics,

and can be configured via push-buttons. Product specific functionality includes communication via Modbus and

Bluetooth and remote access using our PR Process Supervisor (PPS) application, available for iOS and Android.

Our display range is characterized by its flexibility and stability. The devices meet nearly every demand for display

readout of process signals and have universal input and power supply capabilities. They provide a real-time

measurement of your process value no matter the industry and are engineered to provide a user-friendly and reliable

relay of information, even in demanding environments.

We deliver the safest signals by validating our products against the toughest safety standards. Through our

commitment to innovation, we have made pioneering achievements in developing I.S. interfaces with SIL 2 Full

Assessment that are both efficient and cost-effective. Our comprehensive range of analog and digital intrinsically

safe isolation barriers offers multifunctional inputs and outputs, making PR an easy-to-implement site standard.

Our backplanes further simplify large installations and provide seamless integration to standard DCS systems.

Our compact, fast, high-quality 6 mm isolators are based on microprocessor technology to provide exceptional

performance and EMC-immunity for dedicated applications at a very low total cost of ownership. They can be

stacked both vertically and horizontally with no air gap separation between units required.

2281V103-UK 1

Ramp generator

2281

Contents

Applications ............................................................................................ 2

Technical characteristics ................................................................................. 2

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Functions............................................................................................... 2

Ramp generator with internal time measurement....................................................... 2

Ramp generator with external pulses .................................................................. 2

Ramp generator for 2-phase encoder .................................................................. 3

Output ................................................................................................. 3

Order ................................................................................................... 4

Electrical speciﬁcations .................................................................................. 4

Block diagram ........................................................................................... 5

Hardware programmering ................................................................................ 6

Routing diagram ........................................................................................ 7

Conﬁguration / operating the function keys ............................................................... 8

Description of functions (selection of application) ......................................................... 10

Document history ....................................................................................... 12

2 2281V103-UK

Ramp generator

2281

• Multiple functions

• Programmable from front

• 3-digit LED display

• NPN and PNP inputs

• Internal ramp time or external pulses

• Reset or preset function

Applications

To convert digital signals to a time-controlled analogue signal with either internally entered up/down time or with external

pulses for up/down function. Can convert digital outputs to analogue outputs. By connection of a 2-phase encoder as up/

down pulse generator the pulses will be converted to an analogue position signal. Especially suitable in applications where

easy 11-pole relay socket mounting is required for instance in a panel. Possibility of readout of the analogue value of the

output through the built-in display.

Technical characteristics

General

The 2281 is microprocessor-controlled and basic-calibrated. This means that the input and output can be programmed acc. to

the requested signal range without any readjustment. Thereby a high degree of accuracy and flexibility are ensured. The user

interface consists of a 3-digit display and 3 function keys in the front. The interface is used to change a function, ramp time or

an output signal range.

Inputs

6 digital inputs make it possible to choose reset, up/down functions as either NPN inputs (short circuit to gnd.) or as PNP input

(+ 24 VDC). The trigger level is typically 8 VDC with a pull up/down resistance of 3.5 kΩ corresponding to a load current of 6.9

mA. Via an analogue switch the up and down inputs can be switched between input filters for a pulse length > 10 ms or > 0.5

ms. The chosen filter is the same for all up/down inputs. The 10 ms filter is used for elimination of contact-bounce. The reset

inputs have a filter for pulse lengths > 30 ms. The arrow keys can be selected to work in parallel with the digital up and down

inputs.

Functions

Ramp generator with internal time measurement

Up ramp and down ramp can be set separately in the time span 0.1...999999 s. Reset can be chosen to preset at any value

between 0 and 100% output signal. The up/down time measurement starts when the time constant of the selected filter has

been exceeded.

If the up/down inputs are activated simultaneously, both ramps will be activated and the outputs rise/fall with the difference

of the times.

Ramp generator with external pulses

Up ramp and down ramp can be adjusted separately with a number of pulses between 1 and 15,615,744. The entered number

of pulses (max. 60999) are multiplied by the prescaler which can assume values between 1 and 256. Reset can be chosen to

preset at any value between 0% and 100% output signal. The pulse length must be longer than the time constant of the

selected filter. If the up/down inputs are activated simultaneously both input pulses will be scanned and the output will rise/

fall with the difference of the pulses. In case of supply drop-out the position will be remembered when the prescaler is 1.

2281V103-UK 3

Ramp generator for 2-phase encoder

The ramp pulses are set to a value between 1 and 15,615,744. The entered number of pulses (max. 60999) is multiplied by

the prescaler which can assume values between 1 and 256. The pulse length must be longer than the time constant of the

selected filter.

When the encoder is turned in one direction the output rises compared to the set number and pulses, when the encoder is

turned in the opposite direction the output falls proportionally.

The reset can be chosen to preset at any value between 0% and 100% output signal. By activating reset for instance in a 50%

position an auto-calibration of the measuring system is obtained. In case of supply drop-out the position will be remembered

when the prescaler is 1.

Output

Analogue standard current output of 0/4...20 mA or, with JP3 off, 0/2...10 mA. The output span can be set to any value within

the standard ranges with a max. offset of 50% of the max. value and a minimum span of 5 mA. Restart after a supply drop-

out can be chosen to generate either the reset value or the value which the output had just before the supply drop-out.

Maximum load is 600 Ω / 12 VDC. By short-circuit of pins 3 and 2 the output current is converted to a standard voltage of

0/0.2...1 VDC, 0/2...10 VDC or special VDC dependent on the size of R65. The voltage signal is available between pins 2 and 1.

See hardware programming for correct choice.

An overrange can be defined thereby enabling the output to exceed the selected signal range by ±3% within the limit of

0...20.5 mA.

4 2281V103-UK

Order

Electrical specifications

Environmental conditions

Operating temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20°C to +60°C

Calibration temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20...28°C

Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)

Protection degree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP50

Mechanical specifications

Dimensions (HxWxD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80.5 x 35.5 x 84.5 mm (D is without pins)

Weight approx. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 g

Common specifications

Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19.2...28.8 VDC

Internal consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 W

Max. consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7 W

Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front-programmable

Response time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 60 ms

Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Min. 60 dB

Up ramp time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1...999999 s

Down ramp time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1...999999 s

External pulses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1...15,615,744

Signal dynamics, output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 bit

Eect of supply voltage change . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.005% of span/%V

Temperature coecient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.01% of span/°C

Linearity error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.1% of span

EMC immunity inﬂuence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.5%

Electrical specifications - INPUT

Digital input

Up / down inputs

NPN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull up 24 VDC / 6.9 mA

PNP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull down 0 VDC / 6.9 mA

Pulse width, programmable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >10 ms / > 0.5 ms

Input frequency (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz / 1 kHz

Reset inputs

NPN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull up 24 VDC / 6.9 mA

PNP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pull down 0 VDC / 6.9 mA

Pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 30 ms

Input frequency (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Hz

Electrical specifications - output

Current output:

Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20 mA

Min. signal range (span). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA

Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selected max. value

Load (max.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA / 600 Ω / 12 VDC

Load stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.01% of span/100 Ω

Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.5 mA

Of span = Of the presently selected range

Type

2281

2281V103-UK 5

Voltage input via an internal shunt

Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...10 VDC

Min. signal range (span). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mV

Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selected max. value

Load (min.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 kΩ

Voltage limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.25 VDC

Observed authority requirements

EMC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/30/EU & UK SI 2016/1091

RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2011/65/EU & UK SI 2012/3032

EAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TR-CU 020/2011

Block diagram

24 V

NPN

PNP

CPU

E E P R OM

3I +

D/A

0...20

V -

V + DC

2281

JP 3 O

0...10 mA

500

2V +

JP 2JP 1

V +

Supply+24VDC

Supplygnd.

Reset

Down

Gnd.

I + V

Out

Spec.

V Out

R 65

3.5 k

6 2281V103-UK

Hardware programmering

JP1 JP2 JP3 Output Menu 4.3

OFF OFF OFF

0...10 mA

0...20 mA

ON OFF OFF

0...500 mV

0...1000 mV

OFF ON OFF

0...5 V

0...10 V

2281V103-UK 7

0.0

5.0 5.1 5.2 5.3

3.0 3.1 3.2

1.0 1.3

2.0 2.1 2.2

1.1 1.2

4.0 4.1 4.2 4.3

5. 4

4. 4

001 = 0...10 mA

002 = 0...20 mA

003 = 0...500 mV

004 = 0...1000 mV

005 = 0...5 V

006 = 0...10 V

5. 15. 0

Programming

Pressand hold ,thenpress

tostorechanges.

Changeof parameter

Next digitor point

Goto entrymenu / Leave

menuwithout changes

LO = 50 Hz

HI = 1 kHz

If no buttonsarepressedforaperiod of 2 minutes,

displayreturns to stage 0.0

Front Setting

5.2EFS/dFS - enable/ disable front setting

Decreaseofoutput

Exitfrontsetting

001= Internaltimecount

002= Externalpulses

003= 2-phase encoder 040 = enablechangein all stages

- - -= disable change

Routingdiagram

Ramp generator

function

Application

Program

access

Overrange

0... 999

Down low

value

Uplow

value

Uphigh

value

Downhigh

value

Passwordcode

Parameters

Outputvalue at

Power up

0...999s

0...999pulses

0...999s

0...999pulses

0...999* 1000 s

0...060* 1000 pulses

0...999* 1000 s

0...060* 1000 pulses

Ramp

Down

Ramp

HLd=Memoryvalue

rES =Reset value 0...100%

Reset Prescale

Pulsemultiplier

001...256

Increaseof output

Analog

output

Output0% Output typeOutput100%

0...20.0mA

0...10.0VDC

0...20.0mA

0...10.0VDC

Enable/disable

frontsetting

EFS= Enable front setting

dFS= Disable front setting

Filter

OFF

Memory

Routing diagram

8 2281V103-UK

Configuration / operating the function keys

Documentation for routing diagram

General

The programming is menu-controlled. The main menus are numbered in level 0 (x.0), and the submenus are numbered in

level 1 (x.1 to x.5). Each submenu has an accompanying entry menu. The menus are structured in such a way that the

menus most frequently used are closer to the default menu 0.0. Please note that programming is only possible when

submenu 5.4 PAS has the value 040.

Menus and submenus are selected by the 3 function keys

, and

outlined in the routing diagram.

Activating

will display the current value. In entry menus, the digit that can

be changed will flash.

Active digit position is shifted by the

key, and the value is changed by the

key. When the decimal point flashes, its position can be changed by the

key.

In parameter selection menus you switch between the parameters by the

key.

Store by first activating

and then

simultaneously.

To return to the previous menu without changing the parameters - activate

If a non-valid value is entered, the display will show Err for 2 s and then

return to the entry menu with the initial parameters.

0.0 Default - The output value is displayed in %

The display returns to default at power ON, or if no keys have been activated for a period of 2 minutes.

Front Setting - Manual operation of up ramps or down ramps.

When menu 5.2 has been selected as EFS (Enable Front Setting), you can ramp up or down by way of the Front Setting

function. In this menu the function keys have a special function, as

corresponds to the activation of the “UP” input,

and

corresponds to the activation of the “DOWN” input. The output value is displayed in %.

Activate

to leave the Front Setting menu and to store the present ramp value.

0.0

5.2 EFS/dFS - enable / disable front setting

Front Setting

Decrease output

Exit front setting

Increase output

1.0 1.1

Memory

Programming

Change of parameter

Next digit or point

Go to entry menu / Leave

menu without changes

To store changes press

simultaneously.

Indice

Manuali Generatore portatile popolari di altre marche

Kohler

Kohler 20EORZ Manuale di istruzioni

Powerhorse

Powerhorse 83171 Manuale utente

HURST

HURST ML-630-SI Manuale utente

ETQ

ETQ TG4000 Manuale utente

Briggs & Stratton

Briggs & Stratton 40265 Guida all'installazione

ConMed

ConMed 7550 Manuale utente

Owon

Owon Waveform Generator Manuale utente

evertz

evertz 7700 Series Manuale utente

Power Stroke

Power Stroke PS906025 Manuale utente

Firefly

Firefly Cygnus CYG2400/460/24 Manuale utente

Draper

Draper PG950S Aggiornamento firmware

PowerBoss

PowerBoss PowerBoss Manuale utente

SDMO

SDMO SH 4000 Manuale utente

EINHELL

EINHELL STE 5500 Manuale utente

Wanco

Wanco WI3000P Manuale utente

Full Boar

Full Boar FBT-3300 Manuale utente

Dwyer Instruments

Dwyer Instruments ASG Manuale utente

Westinghouse

Westinghouse WH1000i Series Manuale utente