Pixsys ATR 121 Manuale utente

ATR 121

Controller

User manual

Table of contents

1 Safety guidelines ........................................................................... 6

1.1 Organization of safety notices............................................. 7

1.2 Safety Precautions................................................................... 7

1.3 Precautions for safe use ......................................................... 8

1.4 Environmental policy / WEEE .............................................10

2 Model identiﬁcation ................................................................... 10

3 Technical features .......................................................................10

3.1 General features.....................................................................10

4 Hardware features ...................................................................... 11

4.1 Software features ..................................................................12

5 Dimensions and installation.................................................... 12

5.1 Electrical wirings.................................................................... 13

5.2 Wiring diagram...................................................................... 13

6 Display and keys functions....................................................... 17

6.1 Numeric indicators (Display).............................................. 17

6.2 Meaning of status lights (Led)............................................17

6.3 Keys............................................................................................ 18

7 Controller functions.................................................................... 19

7.1 Modifying main setpoint and alarm setpoint values .. 19

8 Tuning............................................................................................. 19

8.1 Auto-tune.................................................................................19

8.2 Manual tuning........................................................................20

8.3 Automatic tuning ..................................................................20

8.4 Memory card (optional).......................................................20

8.5 Latch ON function .................................................................21

8.6 Dual action Heating-Cooling.............................................23

9 Dead band function ...................................................................25

10 Conﬁguration...............................................................................26

10.1 Loading default values.........................................................26

10.2 Modify conﬁguration parameters ....................................26

11 Conﬁguration parameters........................................................27

12 Alarm intervention modes........................................................36

13 Table of anomaly signals ..........................................................39

14 Qr-code ..........................................................................................39

14.1 3D ﬁle ........................................................................................40

Blank Page

6 - ATR121 - User manual

Introduction

Thank you for choosing a Pixsys controller.

Versions with three digits display are available and the

device ﬁts a wide range of applications with the most diverse

sensors like temperature/humidity/pressure sensors or linear

potentiometers.

Output options include both relay and SSR logic, but it is

possible to conﬁgure the unit also as indicator for installations

that do not require control or alarm ouputs.

PID and Autotune allow to adapt the regulation algorithm

to the installation , while LATCH ON function speeds up the

device calibration when linear potentiometers are used.

As on the latest Pixsys instrumentation, the conﬁguration is

further simpliﬁed by the Memory cards which are provided

with internal battery and therefore do not require cabling to

power the controller.

Safety guidelines

Read carefully the safety guidelines and programming

instructions contained in this manual before connecting/

using the device.

Disconnect power supply before proceeding to hardware

settings or electrical wirings to avoid risk of electric shock,

ﬁre, malfunction.

Do not install/operate the device in environments with

ﬂammable/explosive gases.

This device has been designed and conceived for industrial

environments and applications that rely on proper safety

conditions in accordance with national and international

regulations on labour and personal safety. Any application

that might lead to serious physical dama ge/ life risk or involve

medical life support devices should be avoided.

Device is not conceived for applications related to nuclear

power plants, weapon systems, ﬂight control, mass transpor-

User manual - ATR121 - 7

tation systems.

Only qualiﬁed personnel should be allowed to use device

and/or service it and only in accordance to technical data

listed in this manual.

Do not dismantle/modify/repair any internal component.

Device must be installed and can operate only within the

allowed environmental conditions. Overheating may lead

to risk of ﬁre and can shorten the lifecycle of electronic

components.

1.1

Organization of safety notices

Safety notices in this manual are organized as follows:

Safety notice Description

Danger! Disregarding these safety guidelines and

notices can be life-threatening.

Warning!

Disregarding these safety guidelines

and notices can result in severe injury or

substantial damage to property.

Information! This information is important for preventing

errors.

1.2

Safety Precautions

This product is UL listed as open type process

control equipment. Danger!

If the output relays are used past their life

expectancy, contact fusing or burning may

occasionally occur.

Always consider the application conditions and

use the output relays within their rated load and

electrical life expectancy. The life expectancy

of output relays varies considerably with the

output load and switching conditions.

Danger!

8 - ATR121 - User manual

Loose screws may occasionally result in ﬁre.

For screw terminals of relays and of power

supply, tighten screws to tightening torque of

0,5 Nm.

Warning!

A malfunction in the Digital Controller

may occasionally make control operations

impossible or prevent alarm outputs, resulting

in property damage. To maintain safety in the

event of malfunction of the Digital Controller,

take appropriate safety measures, such as

installing a monitoring device on a separate line.

Warning!

1.3

Precautions for safe use

Be sure to observe the following precautions to prevent

operation failure, malfunction, or adverse aﬀects on the

performance and functions of the product. Not doing so may

occasionally result in unexpected events. Do not handle the

Digital Controller in ways that exceed the ratings.

• The product is designed for indoor use only. Do not use

or store the product outdoors or in any of the following

places.

- Places directly subject to heat radiated from heating

equipment.

- Places subject to splashing liquid or oil atmosphere.

- Places subject to direct sunlight.

- Places subject to dust or corrosive gas (in particular,

sulﬁde gas and ammonia gas).

- Places subject to intense temperature change.

- Places subject to icing and condensation.

- Places subject to vibration and large shocks.

• Installing two or more controllers in close proximity

might lead to increased internal temperature and this

might shorten the life cycle of electronic components. It

is strongly recommended to install cooling fans or other

User manual - ATR121 - 9

air-conditioning devices inside the control cabinet.

• Always check the terminal names and polarity and be sure

to wire properly. Do not wire the terminals that are not

used.

• To avoid noise, keep the controller wiring away from

power cables that carry high voltages or large currents.

Also, do not wire power lines together with or parallel

to Digital Controller wiring. Using shielded cables and

using separate conduits or ducts is recommended. Attach

a surge suppressor or noise ﬁlter to peripheral devices

that generate noise (in particular motors, transformers,

solenoids, magnetic coils or other equipment that have

an inductance component). When a noise ﬁlter is used at

the power supply, ﬁrst check the voltage or current, and

attach the noise ﬁlter as close as possible to the Digital

Controller. Allow as much space as possible between the

Digital Controller and devices that generate powerful high

frequencies (high-frequency welders, high-frequency

sewing machines, etc.) or surge.

• A switch or circuit breaker must be provided close to

device. The switch or circuit breaker must be within

easy reach of the operator, and must be marked as a

disconnecting means for the controller.

• The device must be protected by a fuse 1A.

• Wipe oﬀ any dirt from the Digital Controller with a soft dry

cloth. Never use thinners, benzine, alcohol, or any cleaners

that contain these or other organic solvents. Deformation

or discoloration may occur.

• The number of non-volatile memory write operations

is limited. Therefore, use EEprom write mode when

frequently overwriting data.

10 - ATR121 - User manual

1.4

Environmental policy / WEEE

Do not dispose electric tools together with household waste

material.

According to European Directive 2012/19/EU on waste

electrical and electronic equipment and its implementation

in accordance with national law, electric tools that have

reached the end of their life must be collected separately and

returned to an environmentally compatible recycling facility.

Model identiﬁcation

ATR121-AD 12..24Vac ±10% 50/60Hz

12..35Vdc

ATR121-B 230 Vac ±10% 50/60 Hz (galvanical isolation

2500V)

Technical features

3.1

General features

Display 3 displays (0,56 inch) on ATR121

+ 3 leds (OUT1, OUT2 , L1)

Environmental

conditions

Temperature 0-45 °C, Humidity 35..95

uR% (without condense)

Max. altitude: 2000m

Sealing Front panel: IP54 (IP65 with gasket) - Box:

IP30 - Terminals: IP20

Material Polycarbonate UL94V2 self-extinguishing

Weight Approx. 100 gr.

Power

consumption

ATR121-B: 3 VA max

ATR121-AD: 2,4 VA max

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