PR electronics 2255 Manuale utente

PERFORMANCE

MADE

SMARTER

Product manual

2255

f/I - f/f converter

No. 2255V103-UK

From serial no.: 191356001

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.

2255V103-UK 3

f/I - f/f converter

2255

Table of contents

Warning ................................................................................................ 4

Symbol identiﬁcation .................................................................................... 4

Safety instructions ...................................................................................... 5

How to dismantle system 2200 .......................................................................... 6

Technical characteristics ................................................................................. 7

Input ................................................................................................ 7

Output(s) ............................................................................................ 7

Electrical speciﬁcations .................................................................................. 8

Order ................................................................................................... 11

Block diagram ........................................................................................... 11

Analog output programming by way of jumpers ........................................................... 11

Programming / operating the function keys ............................................................... 12

Routing diagram: f/I converter with analogue and digital output ............................................ 13

Setting of f/i converter with analogue and digital output................................................... 14

Routing diagram: f/f converter for pulse................................................................... 17

Setting of f/f converter to pulse division / multiplication ................................................... 18

Routing diagram: Frequency generator.................................................................... 20

Setting of frequency generator........................................................................... 21

Document history ....................................................................................... 23

HAZARD-

OUS

VOLTAGE

INSTAL-

LATION

GENERAL

Warning

This device is designed for connection to hazardous electric voltages.

Ignoring this warning can result in severe personal injury or mechanical damage.

To avoid the risk of electric shock and fire, the safety instructions of this manual must be observed and

the guidelines followed.

The specifications must not be exceeded, and the device must only be applied as described in the

following.

Prior to the commissioning of the device, this manual must be examined carefully.

Only qualified personnel (technicians) should install this device.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the

equipment may be impaired.

Warning

Until the device is fixed, do not connect hazardous voltages to the device.

The following operations should only be carried out on a disconnected device and under ESD-safe

conditions:

Dismantlement of the device for setting of DIP switches and jumpers.

General mounting, wire connection and disconnection.

Troubleshooting the device.

Repair of the device and replacement of circuit breakers must be done by PR electronics A/S only.

Warning

To keep the safety distances, devices with two built-in relays must not be connected to both hazardous

and non-hazardous voltages on the same device’s relay contacts.

SYSTEM 2200 must be mounted in socket type S3B Releco (order no 7023).

Symbol identification

Triangle with an exclamation mark: Read the manual before installation and commissioning of the

device in order to avoid incidents that could lead to personal injury or mechanical damage. Warning /

demand. Potentially lethal situations.

The CE mark proves the compliance of the device with the essential requirements of the EU directives.

The UKCA mark proves the compliance of the device with the essential requirements of the UK

regulations.

The double insulation symbol shows that the device is protected by double or reinforced insulation.

Safety instructions

Definitions

Hazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50 to 1000 Volt AC.

Technicians are qualified persons educated or trained to mount, operate, and also trouble-shoot technically correct and in

accordance with safety regulations.

Operators, being familiar with the contents of this manual, adjust and operate the knobs or potentiometers during normal

operation.

Receipt and unpacking

Unpack the device without damaging it and check whether the device type corresponds to the one ordered. The packing

should always follow the device until this has been permanently mounted.

Environment

Avoid direct sun light, dust, high temperatures, mechanical vibrations and shock, and rain and heavy moisture. If necessary,

heating in excess of the stated limits for ambient temperatures should be avoided by way of ventilation.

The device must be installed in pollution degree 2 or better.

The device is designed to be safe up to an altitude of 2 000 m.

The device is designed for indoor use.

Mounting

Only technicians, who are familiar with the technical terms, warnings, and instructions in the manual and who are able to

follow these, should connect the device. Should there be any doubt as to the correct handling of the device, please contact

your local distributor or, alternatively,

PR electronics A/S

www.prelectronics.com

Mounting and connection of the device should comply with national legislation for mounting of electric materials, i.e. wire

cross section, protective fuse, and location.

Descriptions of input / output and supply connections are shown in the block diagram and side label.

The following apply to fixed hazardous voltages-connected devices:

The max. size of the protective fuse is 10 A and, together with a power switch, it should be easily accessible and close to

the device. The power switch should be marked with a label telling it will switch off the voltage to the device.

Year of manufacture can be taken from the first two digits in the serial number.

Calibration and adjustment

During calibration and adjustment, the measuring and connection of external voltages must be carried out according to the

specifications of this manual. The technician must use tools and instruments that are safe to use.

Normal operation

Operators are only allowed to adjust and operate devices that are safely fixed in panels, etc., thus avoiding the danger of

personal injury and damage. This means there is no electrical shock hazard, and the device is easily accessible.

Cleaning

When disconnected, the device may be cleaned with a cloth moistened with distilled water.

Liability

To the extent the instructions in this manual are not strictly observed, the customer cannot advance a demand against PR

electronics A/S that would otherwise exist according to the concluded sales agreement.

6 2255V103-UK

How to dismantle system 2200

Picture 1:

The back panel of the module is detached from the housing by way of a

screwdriver.

Picture 2:

After this, the back panel can be pulled out together with the PCB, but

please notice the position of the PCB as there is a number of different

positions in the house. Do not pull the wires unnecessarily, instead pull the

PCB.

Switches and jumpers can now be moved.

When assembling the back plate and housing, please make sure no wires are

stuck.

2255V103-UK 7

f/I - f/f converter 2255

• Programmable f/I converter

• Programmable decimal divider / decimal multiplier

• Programmable frequency generator

• Relay output as option

• Supply voltage 24 VDC

General

The 2255 f/I - f/f converter is configured to the requested function by means of a menu-driven dialog with keys and display in

the front. Typical signalling device may be pulse generators e.g. flow meters, tacho-generators or inductive sensors.

The f/I function is used for frequency to current / voltage conversion within the frequency range from 0.001 Hz to 20 kHz

and for speed control with the digital output as frequency watch.

The f/f function is used for division or multiplication of pulses and as a buffer for fast pulse trains.

Max. input frequency 20 kHz.

Max. output frequency 1 kHz.

The frequency generator function is for instance used as a time base or a clock generator. Max. output frequency 20 kHz.

The 2255 can be delivered pre-configured according to specifications.

Technical characteristics

Input

Programmable input for connexion of standard pulse generator. Input filter may be selected for pulse width > 0.02 ms/max.

20 kHz, or > 10 ms/max. 50 Hz. By contact input, the filter for 10 ms/50 Hz should be used.

Auxiliary supplies

(selected by input configuration)

NAMUR supply: 8 VDC ±0.5 V / 8 mA for supply of NAMUR sensors.

S0 Supply: 15 VDC. Imax. 25 mA. Imin. (800 Ω load) 10 mA.

Special supply: As option special voltage supplies within the range 5...15 VDC / 30 mA.

Output(s)

Standard current output (pin 3) programmable within the range 0...20 mA.

Min. span 5 mA. Max. span 20 mA.

Max. offset of 50% of the max. value.

Current limit: Max. 26 mA.

Standard voltage output (pin 2) is obtained by leading the current signal through an internal shunt resistor.

With internal dipswitches a 50 Ω or a 500 Ω shunt resistor is selected, which results in a voltage output of 0...250 mV and 0 /

0.2...1 V (50 Ω) and 0...2.5 V and 0 / 2...10 V (500 Ω).

With a special internal shunt resistor, units with other output voltages can be delivered (max. 12 VDC).

Current and voltage signals are referring to the supply gnd. but if both signals are used simultaneously, only the voltage signal

has gnd. as reference.

NPN pulse output (option) for relay, electromechanical counter or equivalent load. The output is current-limited to 130 mA

with a PTC resistor.

8 2255V103-UK

The relay output (option) with change-over contact. 300 VA, max. 150 VRMS, 2 A.

Status indication

2255 is equipped with 3 status indicators in the front.

f in: Indicates active input (inactive by the NPN input).

Input frequencies > 50 Hz are shown by fixed light.

Dig. out: Indicates active output.

Error: Indicates sensor error by NAMUR input.

Electrical specifications

Environmental conditions

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

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

Relative air humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 95% RH (non-cond.)

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

Mechanical specifications

Dimensions (HxWxD) (D is excl. pins) . . . . . . . . . . . . . . . . . . . . . . . . 80.5 x 35.5 x 84.5 mm

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 g

Common specifications

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

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

Isolation, test / operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1400 VAC / 150 VAC

Warm-up time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 min.

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

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

Response time (programmable) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 ms to 999 s + period time

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

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

Eect of supply voltage change. . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.005% of span / VDC

Auxiliary voltages:

NAMUR supply 8 VDC ±0.5 VDC / 8 mA

S0 supply 15 VDC / 25 mA

Special (acc. to order) 5...15 VDC / 30 mA

Immunity influence < ±0.5%

Input

General

Measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...20 kHz

Min. measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.001 Hz

Low cut o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.001 Hz

Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90% of selec. max. value

Min. pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 µs

NAMUR input

Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 1.2 mA

Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 2.1 mA

Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 Ω

Sensor error detection

Short-circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 7.0 mA

Breakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 0.2 mA

Response time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 400 ms

2255V103-UK 9

Tacho input

Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 100 mV

Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 200 mV

Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 100 kΩ

Max. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 VAC pp

NPN / PNP input

Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 4.0 V

Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 7.0 V

Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typ. 3.48 kΩ

TTL input

Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 1.2 VDC

Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≥ 1.7 VDC

Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 kΩ

S0 input

Trig-level LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 4.5 mA

Trig-level HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤ 6.2 mA

Analog output

Current output

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

Min. signal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA

Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selec. max. value

Updating time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ms

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

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

Voltage output through internal shunt

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

Min. signal range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 mV

Max. oset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% of selec. max. value

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

NPN output

Max. current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 mA

Max. voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 VD

f/f converter output

Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...1000 Hz

Min. pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 µs

Max. pulse width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 999 ms

Max. duty cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50%

Frequency generator

Pulse width

f < 50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Min. 10 ms, max. 999 s

f ≥ 50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50% duty cycle

Relay output

Max. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz

Max. voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 VAC / VDC

Max. AC current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A

Max. AC power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 VA

Max. DC current, resistive load:

@ Urelay ≤ 30 VDC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ADC

@ Urelay >30 VDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [1380 x U -2

relay x 1.0085Urelay] ADC

10 2255V103-UK

Graphic depiction of [1380 x U -2

relay x 1.0085Urelay]:

Observed authority requirements

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

LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2014/35/EU & UK SI 2016/1101

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

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

Of span = Of the presently selected range

Urelay

50 V 150 V0 V 100 V

Current

0.10 A

0.40 A

0.80 A

0.20 A

1.00 A

0.60 A

2.00 A

3.00 A

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