Pixsys ATR142, ATR142-ABC, ATR142-ABC-T User Manual

ATR142

Summary

1 Introduction........................................................................................................3

2 Model Identification............................................................................................3

3 Technical Data...................................................................................................4

3.1

General Features........................................................................................4

3.2

Hardware Features.....................................................................................4

3.3

Software Features......................................................................................5

4 Dimensions and Installation...............................................................................5

5 Electrical wirings................................................................................................6

5.1

Wiring diagram ...........................................................................................6

6 Display and Key Functions................................................................................9

6.1

Numeric Indicators (Display)......................................................................9

6.2

Meaning of Status Lights (Led) ................................................................10

6.3

Keys..........................................................................................................10

7 Controller Functions......................................................................................... 11

7.1

Modifying Main Setpoint and Alarm Setpoint Values...............................11

7.2

Auto-Tune.................................................................................................11

7.3

Manual Tuning..........................................................................................11

7.4

Automatic Tuning......................................................................................12

7.5

Soft Start...................................................................................................12

7.6

Automatic/Manual Regulation for % Output Control ................................12

7.7

Pre-Programmed Cycle............................................................................13

7.8

Memory Card (optional)............................................................................14

7.9

Loading default values..............................................................................15

8 LATCH ON Functions......................................................................................15

8.1

Digital Input Functions..............................................................................17

8.2

Dual Action Heating-Cooling....................................................................18

9 Serial Communication...................................................................................... 20

9.1

Slave.........................................................................................................20

9.2

Master.......................................................................................................24

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

10.1 Modify Configuration Parameter...............................................................26

11 Table of Configuration Parameters..................................................................27

12 Alarm Intervention Modes................................................................................39

13 Table of Anomaly Signals................................................................................44

14 Summary of Configuration parameters............................................................45

3

1

Introduction

Thank you for choosing a Pixsys controller.
With the ATR142 model Pixsys makes available in a single device all
the resources relevant to sensor input and actuators command, in
addition to the extended power range 24…230 Vac/Vdc. With 17
sensors to select and outputs configurable as relay or SSR command,
the user or retailer can reduce warehouse stock by rationalising
investment and device availability. The series is completed with
models equipped with serial communication RS485 Modbus. The
configuration is further simplified by the Memory cards which are
equipped with internal battery and therefore don’t require cabling to
power the controller.

2

Model Identification

The range of ATR142 controllers comes in two versions. Refer to the
table below to easily select your preferred model.

Models available, with power 24…230 Vac/Vdc +/-15% 50/60Hz – 3,5VA
ATR142-ABC

2 relays (8A+5A) + 1 Ssr

ATR142-ABC-T

1 relays 8A + 1 Ssr + Rs485

4

3

Technical Data

3.1 General Features

Displays

4 0.40 inch displays +
4 0.30 displays

Operating

temperature

0-45°C, humidity 35..95uR%

Sealing

IP65 front panel (with gasket)
IP30 casing and IP20 terminals

Material

Polycarbonate UL94V0 self-extinguishing

Weight

100 g

3.2 Hardware Features

Analogue

input

1: AN1
Configurable via software

Input

Thermocouple type K, S, R, J
Automatic compensation of cold
junction from 0°C to 50°C.
Thermoresistance: PT100,
PT500, PT1000, Ni100, PTC1K,

NTC10K (β 3435K)
Linear: 0-10V, 0-20 or
4-20mA, 0-40mV
Potentiometers: 6KΩ, 150KΩ,

Tolerance (25°C)
+/-0.2 % ± 1 digit
for thermocouple
input, thermo
resistance and
V/mA.
Cold junction
accuracy 0.1°C/°C

Relay

output

2 relays (Atr142-ABC)
1 relay (Atr142-ABC-T)

Configurable as command and/or
alarm output

Contacts:
Q1 – 8A-250V~
Q2 – 5A-250V~

SSR output

1 SSR
Configurable as command output
and/or alarm output.

12Vdc/30mA

Supply

Power supply

24..230 Vac/Vdc +/-15% 50/60Hz

Power consumption

3.5VA

5

3.3 Software Features

Regulation algorithms

ON-OFF with hysteresis.

P, PI, PID, PD with proportional time

Proportional band

0...9999°C or °F

Integral time

0,0...999,9 sec (0 excluded)

Derivative time

0,0...999,9 sec (0 excluded)

Controller functions

Manual or automatic Tuning, configurable
alarms, protection of command and alarm
setpoints, activation of functions via digital
input, preset cycle with Start/Stop.

4

Dimensions and Installation

1 2 3

77 mm

3

5

m

m

53 mm

7

6

5

Electrical wirings

Although this controller was designed to resist noises in
industrial environments, pease notice following safety
guidelines:

•

Separate the feeder line from the power lines.

•

Avoid placing near units with remote control switches,

electromagnetic contactors, high powered motors and in all instances
use specific filters.

•

Avoid placing near power units, particularly if phase controlled.

5.1 Wiring diagram

The connections are reported below for the three models available.

PIXSYS
ATR142-ABC

PTC/NTC

1 2 3 4 5

6789101112

PT/NI100/1K

2 wire 4/20mA

Power

Memory1

5A 230V

Resistive

1/8HP

Q2

8A 230V

Resistive

1/2HP

Q1

PTC/NTC

1 2 3 4 5

6789101112

PT/NI100/1K

2 wire 4/20mA

Power

Memory1

RS485

PIXSYS
ATR142-ABC-T

8A 230V

Resistive

1/2HP

Q1

7

Power

Switching power supply with extended range
24…230 Vac/dc ±15% 50/60Hz – 5,5VA.

AN1 Analogue Input

For thermocouples K, S, R, J.

• Comply with polarity

• For possible extensions, use a compensated

wire and terminals suitable for the
thermocouples used (compensated)

• When shielded cable is used, it should be
grounded at one side only

For thermoresistances PT100, NI100

• For the three-wire connection use wires with
the same section

• For the two-wire connection short-circuit
terminals 10 and 12

• When shielded cable is used, it should be
grounded at one side only to avoid ground loop
currents

1

2

3

For thermoresistances NTC, PTC, PT500,
PT1000 e potentiometers

• When shielded cable is used, it should be

grounded at one side only to avoid ground
loop currents

For linear signals V/mA

• Comply with polarity

• When shielded cable is used, it should be

grounded at one side only to avoid ground loop
currents

8

Examples of Connection for linear input

For signals 0….10V
Comply with polarity

For signals 0/4….20mA with three-wire
sensor

Comply with polarity
C=Sensor output
B=Sensor ground
A=Sensor power
For signals 0/4….20mA with external power
of sensor

Comply with polarity
A=Sensor output
B=Sensor round

For signals 0/4….20mA with two-wire sensor
Comply with polarity

C=Sensor output
A=Sensor power supply

Serial input

RS485 Modbus RTU communication

Do not use LT (line termination)

resistors

• For networks with more than five

instruments supply in low voltage

9

Relay Q1 Output

Capacity:

Q1 - 8A/250V~ for resistive loads
Q2 - 5A/250V~ for resistive loads

SSR output

SSR command output 12V/30mA

Digital Input on ATR243-20ABC

Digital input using parameter .
The use of digital input in this version is possible
only with TC sensors, 0…10V, 0/4…20mA and
0…40mV

6

Display and Key Functions

1 2 3
M T R

87

6

2

1

9

10

12

11

6.1 Numeric Indicators (Display)

1

Normally displays the process. During the
configuration phase, it displays the parameter
being inserted.

2

Normally displays the setpoint. During the
configuration phase, it displays the parameter
value being inserted.

10

6.2 Meaning of Status Lights (Led)

3

ON when the output command is on. For motorised valve
command, led in on when valve is opening and blink
when closing.

4

ON when alarm 1 is on.

5

ON when alarm 2 is on.

6

ON when the “Manual” function is on.

7

ON when the controller is running an “Autotune” cycle.

8

ON when the controller communicates via serial port.

6.3 Keys

9

• Allows to increase the main setpoint.

• During the configuration phase, allows to slide

through parameters. Together with the

S

E

T

key it

modifies them.

• Pressed after the

S

E

T

key it allows to increase the

alarm setpoint.

10

• Allows to decrease the main setpoint.

• During the configuration phase, allows to slide

through parameters. Together with the

S

E

T

key it

modifies them.

• Pressed after the

S

E

T

key it allows to decrease the

alarm setpoint.

11

S

E

T

• Allows to display the alarm setpoint and runs the
autotuning function.

• Allows to vary the configuration parameters.

12

F

N

C

• Allows to display the alarm setpoint and runs the
autotuning function.

• Allows to vary the configuration parameters.

11

7

Controller Functions

7.1 Modifying Main Setpoint and Alarm Setpoint Values

The setpoint value can be changed from the keyboard as follows:

Press Effect Operation

1

or

Value on display 2
changes

Increases or decreases the
main setpoint

2

S

E

T

Visualize alarm
setpoint on display
1

3

o

Value on display 2
changes

Increases or decreases the
alarm set point value

7.2 Auto-Tune

The Tuning procedure calculates the controller parameters and can be
manual or automatic according to selection on parameter 46 .

7.3 Manual Tuning

The manual procedure allows the user greater flexibility to decide
when to update PID algorithm work parameters. The procedure can be
activated in two ways.

• By running Tuning from keyboard:

Press the

F

N

C

key until display 1 shows the writing with

display 2 showing , press , display 2 shows .
The led switches on and the procedure begins.

• By running Tuning from digital input:

Select

on parameter 50

.

On first activation of digital input (commutation on front panel) the
led switches on and on second activation switches off.

12

7.4 Automatic Tuning

Automatic tuning activates when the controller is switched on or when
the setpoint is modified to a value over 35%.
To avoid an overshoot, the treshold where the controller calculates the
new PID parameters is determined by the setpoint value minus the

“Set Deviation Tune” ( see Parameter 47 ).
To exit Tuning and leave the PID values unchanged, just press the

F

N

C

key until display 1 shows the writing with the display

showing , press , display 2 shows .
The led switches off and the procedure finishes.

7.5 Soft Start

To reach the setpoint the controller can follow a gradient expressed in
units (e.g. degree/hour).

Set the increase value in parameter 51 with the desired
units/hour; only on subsequent activation the controller uses the soft
start function.
Automatic/manual tuning cannot be enabled if the Soft start is active.

7.6 Automatic/Manual Regulation for % Output Control

This function allows you to select automatic functioning or manual
command of the output percentage.

With parameter 49 , you can select two methods.

1. The first selection

allows you to enable the

F

N

C

key with the writing on display 1, while

display two shows .

13

Press the key to show ; it is now possible,
during the process display, to change the output

percentage using the keys and . To return to
automatic mode, using the same procedure, select

on display 2: the led switches off and

functioning returns to automatic mode.

2. The second selection enables the same
functioning, but with two important variants:

• If there is a temporary lack of voltage or after switch-off, the
manual functioning will be maintained as well as the previously
set output percentage value.

• If the sensor breaks during automatic functioning, the controller
moves to manual mode while maintaining the output percentage
command unchanged as generated by the PID immediately
before breakage.

7.7 Pre-Programmed Cycle

The pre-programmed cycle function activates by setting in
parameter 48 .

The controller reaches setpoint1 basing on the gradient set in
parameter 51 , then it reaches maximum power up to

setpoint2. When the process reaches maximum power, this setpoint is
maintained for the time set in parameter 52 . On expiry, the
command output is disabled and the controller displays .

Time

Setpoint

Setpoint 1

Setpoint 2

Natural
cooling

Hold

Gradient

Max.
power

The cycle starts at each activation of the controller, or via digital input if
it is enabled for this type of functioning (see parameter 50 ).

14

7.8 Memory Card (optional)

Parameters and setpoint values can be duplicated from one controller
to another using the Memory card.
There are two methods:

• With the controller connected to the power supply

Insert the memory card when the controller is off.
On activation display 1 shows and display 2 shows

(Only if the correct values are saved in the memory card). By
pressing the key display 2 shows , then confirm using the

F

N

C

key. The controller loads the new data and starts again.

• With the controller not connected to power supply.

The memory card is equipped with an internal battery with an
autonomy of about 1000 uses.
Insert the memory card and press the programming buttons.
When writing the parameters, the led turns red and on completing the
procedure it changes to green. It is possible to repeat the procedure
without any particular attention.

Updating Memory Card

To update the memory card values, follow the procedure described in
the first method, setting display 2 to so as not to load the

parameters on controller2.
Enter configuration and change at least one parameter

.

Exit configuration. Changes are saved automatically.

2

If on activation the controller does not display it means no data have been

saved on the memory card, but it is possible to update values.

15

7.9 Loading default values

This procedure makes it possible to restore factory settings of the
instrument.

Premere Effetto Eseguire

1

F

N

C

for 3

seconds.

Display 1 shows

with the 1st digit

flashing, while display 2

shows

2

or

Change the flashing digit

and move to the next

one using the

S

E

T

key.

Enter password

3

S

E

T

to confirm

Instrument loads default

settings

Turn off and on the

instrument

8

LATCH ON Functions

For use with input (potentiometer 6KΩ) and
(potentiometer 150KΩ ) and with linear input (0…10V, 0...40mV,
0/4…20mA), you can associate start value of the scale (parameter 6

) to the minimum position of the sensor and value of the scale
end (parameter 7 ) to the maximum position of the sensor
(parameter 8 configured as ).

It is also possible to fix the point in which the controller will display 0
(however keeping the scale range between and )
using the “virtual zero” option by setting

or in
parameter 8 . If you set the virtual zero will reset after
each activation of the tool; if you set the virtual zero remains

fixed once tuned.

16

To use the LATCH ON function configure as you wish the parameter

.3

For the calibration procedure refer to the following table:

Press Effect Operation

1

F

N

C

Exit parameters

configuration. Display 2

shows the writing .

Position the sensor on the

minimum functioning value
(associated with )

2

Set the value to minimum.

The display shows

Position the sensor on the

maximum functioning

position (associated with

)

3

Set the value to maximum.

The display shows

To exit the standard

procedure press

F

N

C

.

For “virtual zero” settings

position the sensor on the

zero point.

4

S

E

T

Set the virtual zero value.

The display shows

N.B.: for selection of

the procedure in

point 4 should be followed

on each re-activation.

To exit the procedure press

F

N

C

.

MAX

MIN

ZERO

3

The tuning procedure starts by exiting the configuration after changing the parameter.

17

8.1 Digital Input Functions

Digital input is programmable for several functions which are useful to
simplify controller operability. Select the desired function on parameter

50 .

1. Hold function (enabled by setting or ) allows to

lock the reading of sensors when the digital input is active
(useful for wide ranging oscillation on less significant values).

During the lock phase, display 2 flashes and shows .

2. Enables/disables the autotuning function from digital input if the

parameter is set on .

3. Enable regulation with or .

4. Switch from automatic to manual functioning if is set

on or .

5. Start of pre-programmed cycle (see paragraph 7.7) with

.

6. Change setpoint function.

This function is useful where there are 2 to 4 working thresholds
required during system functioning without having to press the
arrow keys.

To enable the function use the parameter , by
selecting the number of setpoints desired (no. thresholds
switch). They can be switched during functioning by pressing

the

S

E

T

key.

N.B.:

The digital input functions are not available with sensors PT100,
NI100, NTC, PTC, PT500, PT1000 e potentiometers.

18

8.2 Dual Action Heating-Cooling

ATR142 is also suitable also for systems requiring a combined heating­cooling action.
The command output must be configured as Heating PID

( = and with a greater than 0), and one of the
alarms ( or ) must be configured as . The

command output must be connected to the actuator responsible for
heat, while the alarm will control cooling action.
The parameters to configure for the Heating PID are:

= Command output type (Heating)
: Heating proportional band
: Integral time of heating and cooling
: Derivative time of heating and cooling

: Heating time cycle
The parameters to configure for the Cooling PID are the following
(example: action associated to alarm1):

= Alarm1 selection (cooling)

: Proportional band multiplier

: Overlapping/Dead band

: Cooling time cycle
The parameter (that ranges from 1.00 to 5.00) determines the

proportional band of cooling basing on the formula:
Cooling proportional band = *

This gives a proportional band for cooling which will be the same as
heating band if = 1.00, or 5 times greater if = 5.00.

The integral time and derivative time are the same for both actions.
The parameter determines the percentage overlapping

between the two actions. For systems in which the heating output and
cooling output must never be simultaneously active a dead band

(

≤ 0) must be configured, and vice versa you can configure an

overlapping ( > 0).

19

The following figure shows an example of dual action PID (heating­cooling) with = 0 and = 0.

20

The parameter has the same meaning as the heating time
cycle .
The parameter (cooling fluid) pre-selects the proportional
band multiplier and the cooling PID time cycle basing

on the type of cooling fluid:

Cooling fluid type

Air 1.00 10
Oil 1.25 4

Water 2.50 2

Once selected, the parameter , the parameters ,

and can however be changed.

9

Serial Communication

9.1 Slave

ATR142-ABC-T, equipped with RS485, can receive and broadcast
data via serial communication using MODBUS RTU protocol. The

device operates as slave if parameter 59

is set as .
This function enables the control of multiple controllers connected to a
supervisory system (SCADA).
Each controller responds to a master query only if the query contains

the same address as that in the parameter . The addresses
permitted range from 1 to 254 and there must not be controllers with
the same address on the same line.
Address 255 can be used by the master to communicate with all the
connected equipment (broadcast mode), while with 0 all the devices
receive the command, but no response is expected.
ATR142 can introduce a delay (in milliseconds) in the response to the

master request. This delay must be set on parameter 58
Each parameter change is saved by the controller in the EEPROM
memory (100000 writing cycles), while the setpoints are saved with a
delay of ten seconds after the last change.
NB: Changes made to words that are different from those reported in
the following table can lead to malfunction.

21

Modbus RTU protocol features

Baud-rate

Can be selected on parameter 70

4800bit/sec
9600bit/sec

19200bit/sec
28800bit/sec
38400bit/sec
57600bit/sec

Format

8, N, 1 (8bit, no parity, 1 stop)

Supported

functions

WORD READING (max 20 word) (0x03, 0x04)
SINGLE WORD WRITING (0x06)
MULTIPLE WORDS WRITING (max 20 word)
(0x10)

The list below includes all the available addresses, where:

RO = Read Only
R/W = Read/Write
WO = Write Only

Modbus
address

Description Read

Write

Reset

value

0 Device type RO EEPROM
1 Software version RO EEPROM
5 Slave Address R/W EEPROM

6 Boot version RO EEPROM
50 Automatic addressing WO ­51 System code comparison WO -

1000 Process (with tenths of degree for temperature

sensors; digits for linear sensors)

RO ?

1001 Setpoint1 R/W EEPROM
1002 Setpoint2 R/W EEPROM
1003 Setpoint3 R/W EEPROM
1004 Setpoint4 R/W EEPROM
1005 Alarm1 R/W EEPROM
1006 Alarm2 R/W EEPROM
1007 Setpoint gradient RO EEPROM

22

1008 Outputs status (0=off, 1=on)

Bit 0 = Q1 relay
Bit 1 = Q2 relay
Bit 2 = SSR

RO 0

1009 Heating output percentage

(0-10000)

RO 0

1010 Cooling output percentage

(0-10000)

RO 0

1011 Alarms status (0=none, 1=active)

Bit0 = Alarm 1
Bit1 = Alarm 2

RO 0

1012 Manual reset: write 0 to reset all the alarms.

In reading (0=not resettable, 1=resettable):
Bit0 = Alarm 1
Bit1 = Alarm 2

WO 0

1013 Error flags

Bit0 = Eeprom writing error
Bit1 = Eeprom reading error
Bit2 = Cold junction error
Bit3 = Process error (sensor)
Bit4 = Generic error
Bit5 = Hardware error

RO 0

1014 Cold junction temperature (tenths of degree) RO ?
1015 Start/Stop

0=controller in STOP
1=controller in START

R/W 0

1016 Lock conversion ON/OFF

0=Lock conversion off
1=Lock conversion on

R/W 0

1017 Tuning ON/OFF

0=Tuning off
1=Tuning on

R/W 0

1018 Automatic/manual selection

0=automatic
1=manual

R/W 0

1019 OFF LINE1 time (milliseconds) R/W 0
1100 Process visualized (decimal as display) RO ?
1101 Setpoint1 visualized (decimal as display) R/W EEPROM
1102 Setpoint2 visualized (decimal as display) R/W EEPROM
1103 Setpoint3 visualized (decimal as display) R/W EEPROM
1104 Setpoint4 visualized (decimal as display) R/W EEPROM
1105 Allarme1 visualized (decimal as display) R/W EEPROM

1

If value is 0, the control is disabled. If different from 0, it is the max. time which can
elapse between two pollings before the controller goes off-line.
If it goes off-line, the controller returns to Stop mode, the control output is disabled
but the alarms are active.

23

1106 Allarme2 visualized (decimal as display) R/W EEPROM
1107 Setpoint gradient (decimal as display) RO EEPROM
1108 Heating output percentage (0-1000) RO 0
1109 Heating output percentage (0-100) RO 0
1110 Cooling output percentage (0-1000) RO 0
1111 Cooling output percentage (0-100) RO 0

2001 Parameter 1 R/W EEPROM
2002 Parameter 2 R/W EEPROM

... ... ... ...

2060 Parameter 60 R/W EEPROM
3000 Disabling serial control of machine 2 WO 0
3001 First word display1 (ASCII) R/W 0

….. ….. R/W 0
3008 Eighth word display1 (ASCII) R/W 0
3009 First word display2 (ASCII) R/W 0

….. ….. R/W 0
3016 Eighth word display2 (ASCII) R/W 0
3017 Word LED

Bit 0 = LED 1
Bit 1 = LED 2
Bit 2 = LED 3
Bit 3 = LED MAN
Bit 4 = LED TUN
Bit 5 = LED REM

R/W 0

3018 Word keys

(write 1 to command keys)

Bit 0 =
Bit 1 =
Bit 2 =

S

E

T

Bit 3 =

F

N

C

R/W 0

3019 Word serial outputs

Bit 0 = Q1 relay
Bit 1 = Q2 relay
Bit 2 = SSR

R/W 0

3020 Word serial outputs state if off-line

Bit 0 = Q1 relay
Bit 1 = Q2 relay
Bit 2 = SSR

R/W 0

3021 Word serial process R/W 0

2

By writing 1 on this word, the effects of the writing are cancelled on all the Modbus

addresses from 3001 to 3022. Control therefore returns to the controller.

24

9.2 Master

The device works as master if the value selected on parameter 59

is other than .

9.2.1 Master Mode in retransmission

Selecting this mode, the device will write the value to be retransmitted
at the address selected on parameter 60 of the slave devices

having same ID as the value selected on parameter 57 .
Regarding retransmission of setpoint values, after writing the value on
slaves, ATR142 starts reading the corresponding word, so that any
modification of value on the slave will be automatically updated also
on the Master. Two successive pollings will be delayed for the time

selected on parameter 57

.

The following table includes the options allowing the Master mode in
retransmission and the relevant retransmitted value.

Descrizione

Write

Process

Write process value

Read/Write

Command

Setpoint

Write and read command setpoint value

Write Output

Percentage

Write output percentage rated by P.I.D. function
(Range 0-10000)

Read/Write

Alarm 1

Write and read alarm 1 setpoint value

25

The read/written value might be rescaled according to the proportion
described in the following table:

Limiti valore ingresso Limiti valore riscalato

Min. Max. Min. Max.

Write Process

Lower Limit

Input

Upper Limit

Input

Lower Limit

Retransmission

Upper Limit

Retransmission

Read/Write

Command

Setpoint

Lower Limit

Setpoint

Upper Limit

Setpoint

Lower Limit

Retransmission

Upper Limit

Retransmission

Write Output

Percentage

0

10000

Lower Limit

Retransmission

Upper Limit

Retransmission

Read/Write

Alarm 1

Setpoint

Lower Limit

Setpoint

Upper Limit

Setpoint

Lower Limit

Retransmission

Upper Limit

Retransmission

The input value (included between minimum and max limit) is linearly
converted into the retransmitted value which is included between min
and max output value.

Rescaling is not executed if parameters and have the
same value.

9.2.2 Master Mode Remote process

To enable this function it is necessary to select on parameter
59 . In this mode the process value on ATR142 is a value

read via serial communication. The ID of the slave must be same as
value selected on parameter 57 and the word to read is

selected on parameter 60 . Two successive pollings will be
delayed for the time selected on parameter 57

The read
value might be rescaled according to the proportion described in the
following table:

Limits of read value Limits of rescaled value

Min. Max. Min. Max.

Read Process

Lower Limit

Retransmission

Upper Limit

Retransmission

Lower Limit

Input

Upper Limit

Input

26

10

Configuration

10.1 Modify Configuration Parameter

For configuration parameters see paragraph 11.

Press Effect Operation

1

F

N

C

for 3

seconds.

Display 1 shows

with the 1st

digit flashing, while

display 2 shows

.

2

or

Change the flashing digit

and move to the next

one using the

S

E

T

key.

Enter password

3

S

E

T

to confirm

Display 1 shows the first

parameter and display 2

shows the value.

4

or

Slide up/down through

parameters

5

S

E

T

+

or

Increase or decrease the

value displayed by

pressing firstly

S

E

T

and

then an arrow key.

Enter the new data which

will be saved on
releasing the keys.
To change another

parameter return to point

4.

6

F

N

C

End of configuration

parameter change.

The controller exits from

programming.

27

11

Table of Configuration Parameters

The following table includes all parameters. Some of them will not be
visible on the models which are not provided with relevant hardware
features.

no. Display Parameter description Entering range

1

Command

Output

Select command output
type

Default

ATR142-ABC

COMMAND

ALARM 1 ALARM 2

Q2 Q1 SSR
Q1 Q2 SSR

SSR Q1 Q2

Q1(opens)

Q2(closes)

SSR -

ATR142-ABC-T

COMMAND

ALARM 1

Q1 SSR

SSR Q1

Q1(opens)

SSR(closes)

-

28

no. Display Parameter description Entering range

2

Sensor

Analog input
configuration

Tc-K (-260…1360°C)

(Default)

Tc-S (-40…1760°C)
Tc-R (-40…1760°C)
Tc-J (-200…1200°C)
PT100 (-200…600°C)
PT100 (-200…140°C)
NI100 (-60…180°C)
NTC10K (-40…125°C)
PTC1K (-50…150°C)
PT500 (-100…600°C)
PT1000 (-100…600°C)
0…10Volt
0…20mA
4…20mA
0…40mVolt
Pot. max 6Kohm
Pot. max 150Kohm

3

Decimal Point

Select number of
displayed decimal points

Default

4

Lower Limit

Setpoint

Lower limit setpoint

-999…+9999 digit∗
(degrees if temperature)
Default: 0.

5

Upper Limit

Setpoint

Upper limit setpoint

-999…+9999 digit*
(degrees if temperature)
Default: 1750.

∗

The display of the decimal point depends on the setting of parameter

and the parameter .

29

no. Display Parameter description Entering range

6

Lower Linear

Input

Lower range limit An1
only for linear input

-999…+9999 digit*
Default: 0.

7

Upper Linear

Input

Upper range limit An1
only for linear input

-999…+9999 digit*
Default: 1000.

8

Latch On
Function

Automatic setting of limits
for Linear input

(Disabled) Default
(Standard)
(Virtual Zero Stored)
(Virtual Zero Initialized)

9

Offset

Calibration

Offset calibration
Number added to
displayed value of
process (normally
corrects the room
temperature value)

-999…+1000 digit* for linear sensors
and potentiometers.

-200.0…+100.0 tenths for
temperature sensors.
Default: 0.0.

10

Gain

Calibration

Gain calibration
Value multiplied with
process value to perform
calibration on working
point

-10.0%…+10.0%
Default: 0.0.

11

Action type

Regulation type

: Heating (N.O.) Default
: Cooling (N.C.)

: HEat Off Over Setpoint

12

Command

Reset

Type of reset for state of
command contact
(always automatic in PID
functioning)

(Automatic Reset) Default
(Manual Reset)
(Manual Reset Stored)

13

Command

State Error

State of contact for
command output in case
of error

Default

14

Command

Led

State of the OUT1 led
corresponding to the
relevant contact

Default

15

Command
Hysteresis

Hysteresis in ON/OFF or
dead band in P.I.D.

-999…+999 digits∗
(tenths of degree if temperature)
Default: 0.0.

∗

The display of the decimal point depends on the setting of parameter

and parameter .

30

no. Display Parameter description Entering range

16

Command

Delay

Command delay (only in
ON/OFF functioning).
(In case of servo valve it
also functions in PID and
represents the delay
between the opening and
closure of the two
contacts)

-180…+180 seconds (tenths of
second in case of servo valve).
Negative: delay in switching off
phase.
Positive: delay in activation phase.
Default: 0.

17

Command

Setpoint

Protection

Allows or not to change
the command setpoint
value

Default

18

Proportional

Band

Proportional band
Process inertia in units
(E.g.: if temperature is in
°C)

0 on/off if
equal to 0. Default
1-9999 digit* (degrees if

temperature)

19

Integral Time

Integral time. Process
inertia in seconds

0.0-999.9 seconds (0 integral
disabled)
Default: 0.

20

Derivative

Time

Derivative time. Normally
¼ the integral time

0.0-999.9 seconds (0 derivative
disabled)
Default: 0.

21

Cycle Time

Cycle time (for PID on
remote control switch
10/15sec, for PID on
SSR 1 sec) or servo time
(value declared by servo­motor manufacturer)

0.1-300.0 seconds
Default: 10.0.
For motorised valve minimum time
in 1.0.

22

Output Power

Limit

Limit of output power %

10-100 %
Default: 100.

23

Alarm 1

Alarm 1 selection.
Intervention of the alarm
is associated with AL1

(Disabled) Default
(Absolute Alarm)
(Band Alarm)
(High Deviation Alarm)
(Low Deviation Alarm)

(Absolute Command setpoint Alarm)

(Start Alarm) Active in Run

(Cooling)

31

no. Display Parameter description Entering range

24

Alarm 1 State

Output

Alarm 1 output contact
and intervention type

(n.o. start) Default

Normally open, active at start

(n.c. start)

Normally closed, active at start

(n.o. threshold)
Normally open, active on reaching
alarm4

(n.c. threshold)
Normally closed on reaching alarm4

25

Alarm 1

Reset

Type of Reset for contact
of alarm 1

(Automatic Reset) Default

(Manual Reset)

(Manual Reset Stored)

26

Alarm 1 State

Error

State of contact for alarm
1 output in case of error

Default

27

Alarm 1 Led

State of the OUT2 led
corresponding to the
relative contact

Default

28

Alarm 1

Hysteresis)

Alarm 1 hysteresis

-999…+999 digit∗
(tenths of degree if temperature).
Default: 0.

29

Alarm 1 Delay

Alarm 1 delay

-180…+180 Seconds
Negative: delay in alarm output
phase.
Positive: delay in alarm entry phase.
Default: 0.

30

Alarm 1

Setpoint

Protection

Alarm 1 set protection.
Does not allow user to
modify setpoint

Default

4

On activation, the output is inhibited if the controller is in alarm mode. Activates only

if alarm condition reappers, after that it was restored.

∗

The display of the decimal point depends on the setting of parameter

and parameter .

32

no. Display Parameter description Entering range

31

Alarm 2

Alarm 2 selection.
Alarm intervention is
associated with AL2

(Disabled) Default

(Absolute Alarm)

(Band Alarm)

(High Deviation Alarm)

(Low Deviation Alarm)

(Absolute Command setpoint Alarm)

(Start Alarm)

(Cooling)

32

Alarm 2 State

Output

Alarm 2 output contact
and intervention type

(n.o. start) Default
Normally open, active at start

(n.c. start)
Normally closed, active at start

(n.o. threshold)
Normally open, active on reaching
alarm5

(n.c. threshold)
Normally closed, active on reaching
alarm5

33

Alarm 2

Reset

Type of Reset for contact
of alarm 2

(Automatic Reset)
Default

(Manual Reset)

(Manual Reset Stored)

34

Alarm 2 State

Error

State of contact for alarm
2 output in case of error

Default

35

Alarm 2 Led

State of OUT2 led
corresponding to relative
contact

Default

36

Alarm 2

Hysteresis

Alarm 2 hysteresis

-999…+999 digit∗
(tenths of degree if temperature).
Default: 0.

5

On activation, the output is inhibited if the controller is in alarm mode. It activates

only if alarm condition reappears after that it was restored.

33

no. Display Parameter description Entering range

37

Alarm 2 Delay

Alarm 2 delay

-180…+180 Seconds
Negative: delay in alarm output
phase.
Positive: delay in alarm entry phase.
Default: 0.

38

Alarm 2

Setpoint

Protection

Alarm 2 set protection.
Does not allow operator
to change value of
setpoint

Default

39

Cooling Fluid

Type of cooling fluid

Default

40

Proportional

Band

Multiplier

Proportional band
multiplier

1.00-5.00

Default: 1.00.

41

(Overlap/Dea

d Band)

Overlapping/Dead band

-20.0-50.0%

Default: 0.

42

Cooling Cycle

Time

Cycle time for cooling
output

1-300 seconds
Default: 10.

∗

The display of the decimal point depends on the setting of parameter

and parameter .

34

no. Display Parameter description Entering range

43

Conversion

Filter

ADC filter: number of
means on analog-digital
conversions

(Disabled)

(2 Samples Mean)

(3 Samples Mean)

(4 Samples Mean)

(5 Samples Mean)

(6 Samples Mean)

(7 Samples Mean)

(8 Samples Mean)

(9 Samples Mean)

(10 Samples Mean)
Default

(11 Samples Mean)

(12 Samples Mean)

(13 Samples Mean)

(14 Samples Mean)

(15 Samples Mean)

44

Conversion

Frequency

Frequency of sampling of
analog-digital converter

(242 Hz)

(123 Hz)

(62 Hz)

(50 Hz)

(39 Hz)

(33.2 Hz)

(19.6 Hz)

(16.7 Hz) Default

(12.5 Hz)

(10 Hz)

(8.33 Hz)

(6.25 Hz)

(4.17 Hz)

35

no. Display Parameter description Entering range

45

Visualisation

Filter

Visualisation filter

(Disabled) Default

(Pitchfork filter)

(First Order)

(First Order with Pitchfork)

(2 Samples Mean)

(3 Samples Mean)

(4 Samples Mean)

(5 Samples Mean)

(6 Samples Mean)

(7 Samples Mean)

(8 Samples Mean)

(9 Samples Mean)

(10 Samples Mean)

46

Tune

Tuning type selection

(Disabled) Default

(Automatic)
PID parameters are calculated at
activation and change of set.

(Manual)
Launch from keys or digital input.

47

Setpoint

Deviation

Tune

Select the deviation from
the command setpoint,
for the threshold used by
autotuning to calculate
the PID parameters

0-5000 digit∗ (tenths of degree if
temperature).
Default: 10.

∗

The display of the decimal point depends on the setting of the parameter

and the parameter .

36

no. Display Parameter description Entering range

48

Operating

Mode

Select operating mode

(Controller) Default

(Programmed Cycle)

(2 Thresholds Switch)

(2 Thresholds Switch
Impulsive)

(3 Thresholds Switch
Impulsive)

(4 Thresholds Switch
Impulsive)

49

Automatic /

Manual

Enable automatic/manual
selection

(Disabled) Default

(Enabled)

(Enabled Stored)

50

Digital Input

Digital input functioning
(P48 selection must be

or )

(Disabled) Default: 0.

(Start/Stop)

(Run n.o.)

(Run n.c.)

(Lock Conversion n.o.)

(Lock Conversion n.c.)

(Tune) Manual

(Automatic Manual

impulse)

(Automatic Manual

Contact)

51

Gradient

Increase gradient for soft
start or pre-programmed
cycle

0 disabled
1-9999 Digit/time∗

(degrees/hours with display of tenths
if temperature)
Default: 0.

∗

The display of the decimal point depends on the setting of parameter

and parameter .

37

no. Display Parameter description Entering range

52

Maintenance

Time

Maintenance time for
pre-programmed cycle

00.00-24.00 hh.mm
Default: 00.00.

53

User Menu

Cycle

Programmed

Allows the rise gradient
and the maintenance
time to be changed from
the user menu, in pre­programmed cycle
functioning

(Disabled) Default

(Gradient)

(Maintenance Time)

(All)

54

Visualization

Type

Select visualization for
display 1 and 2

(1 Process, 2 Setpoint) Default

(1 Process, 2 Hide after 3 sec.)

(1 Setpoint, 2 Process)

(1 Setpoint, 2 Hide after 3 sec.)

55

Degree

Select degree type

: Centigrade
Default

:Fahrenheit

56

Baud Rate

Select baud rate for
serial communication

Default

57

Slave

Address

Select slave address for
serial communication

1 – 254

Default: 254.

58

Serial Delay

Select serial delay

0 – 100 milliseconds
Default: 20.

38

no. Display Parameter description Entering range

59

Master

Select the master mode

(Disable) Default

(Write Process)

(Read/Write Command Setpoint)

(Write Output Percentage)

(Read/Write Alarm 1 Setpoint)

(Read Process)

60

Address

Retransmission

Select address for
retransmission

0x0000 – 0xFFFF (hexadecimal)
Default: 0x03E9.

61

Lower Limit

Retransmission

Lower limit
retransmission range

-999 – 9999 digit∗ (degrees if
temperature)
Default: 0.

62

Upper Limit

Retransmission

Upper limit
retransmission range

-999 – 9999 digit∗ (degrees if
temperature)
Default: 0.

∗

The display of the decimal point depends on the setting of parameter

and parameter .

39

12

Alarm Intervention Modes

Absolute Alarm or Threshold Alarm (

selection

)

On

On

Off

Off

Pv

> 0

Hysteresis

parameter

Time

Alarm

output

Alarm Spv

Absolute alarm with controller
in heating functioning
(Par.11 selected )
and hysteresis value greater
than “0” (Par.28 > 0).

N.B.: The example refers to alarm 1;

the function can also be enabled for
alarms 2 and 3 on models that
include it.

On

On

Off

Off

Pv

< 0

Hysteresis

parameter

Time

Alarm

output

Alarm Spv

Absolute alarm with controller
in heating functioning
(Par.11 selected )
and hysteresis value less than
“0” (Par.28 < 0).

N.B.: The example refers to alarm 1;

the function can also be enabled for
alarms 2 and 3 on models that
include it.

On

On

Off

Off

Pv

> 0

Hysteresis

parameter

Time

Alarm

output

Alarm Spv

Absolute alarm with controller
in cooling functioning
(Par.11 selected

) and hysteresis value
greater than “0” (Par.28
> 0).

N.B.: The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it.

40

On

On

Off

Off

Pv

< 0

Hysteresis

parameter

Time

Alarm

output

Alarm Spv

Absolute alarm with controller
in cooling functioning
(Par.11 selected

) and hysteresis value
less than “0” (Par.28 <

0).

N.B.: The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it.

Absolute Alarm or Threshold Alarm Referring to Setpoint
Command (

selection

)

On

Off

Off

Comand Spv

> 0

Hysteresis

parameter

Time

Alarm

output

Alarm Spv

Absolute alarm refers to the
command set, with the
controller in heating
functioning
(Par.11 selected )
and hysteresis value greater
than “0” (Par.28 > 0).
The command set can be
changed by pressing the
arrow keys on front panel or
using serial port RS485
commands.

N.B.: The example refers to alarm 1;

the function can also be enabled for
alarms 2 and 3 on models that
include it.

41

Band Alarm (

selection

)

On

On

On

Off

Off

Off

Pv

Time

Alarm

output

Comand Spv

> 0

Hysteresis

parameter

Alarm Spv

Alarm Spv

Band alarm hysteresis value
greater than “0” (Par.28
> 0).

N.B.: The example refers to alarm 1;

the function can also be enabled for
alarms 2 and 3 on models that
include it.

On On

On

Off

Off

Off

Comand Spv

< 0

Hysteresis

parameter

Pv

Time

Alarm

output

Alarm Spv

< 0

Hysteresis

parameter

Band alarm hysteresis value
less than “0” (Par.28 <

0).

N.B.: The example refers to alarm 1;

the function can also be enabled for
alarms 2 and 3 on models that
include it.

42

Upper Deviation Alarm (

selection

)

On

On

Off

Off

Pv

Time

Alarm

output

Comand Spv

> 0

Hysteresis

parameter

Alarm Spv

Upper deviation alarm value of
alarm setpoint greater than “0”
and hysteresis value greater
than “0” (Par.28 > 0).

N.B.:

a) The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it.
b) With hysteresis less than “0”
( < 0) the broken line moves
above the alarm setpoint.

On

On

Time

Off Off

Alarm

output

Pv

Comand Spv

> 0

Hysteresis

parameter

Alarm Spv

Upper deviation alarm value of
alarm setpoint less than “0”
and hysteresis value greater
than “0” (Par.28 > 0).

N.B.:

a) The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it.
b) With hysteresis less than “0”
( < 0) the broken line moves
above the alarm setpoint.

43

Lower Deviation Alarm (

selection

)

On

On

Time

Off Off

Alarm

output

Pv

Comand Spv

> 0

Hysteresis

parameter

Alarm Spv

Lower deviation alarm value of
alarm setpoint greater than “0”
and hysteresis value greater
than “0” (Par.28 > 0).

N.B.:
a) The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it.
b) With hysteresis less than “0”
( < 0) the broken line moves
under the alarm setpoint.

On

On

Time

Off Off

Comand Spv

Alarm
output

Pv

> 0

Hysteresis

parameter

Alarm Spv

Lower deviation alarm value of
alarm setpoint less than “0”
and hysteresis value greater
than “0” (Par.28 > 0).

N.B.:
a) The example refers to alarm 1;
the function can also be enabled for
alarms 2 and 3 on models that
include it
b) With hysteresis value less than
“0”
( < 0) the broken line moves
under the alarm setpoint.

44

13

Table of Anomaly Signals

In case of malfunctioning of the system, the controller switches off the
regulation output and displays the type of anomaly.
For example the controller will signal the breakage of any connected

thermocouple by displaying (flashing) on display. For other
notifications, see the table below.

# Cause What to do

E-01

Error in E²PROM cell
programming

Call Assistance

E-02

Cold junction sensor fault or room
temperature outside of allowed
limits.

Call Assistance

E-04

Incorrect configuration data.
Possible loss of calibration values.

Check if the configuration parameters
are correct.

E-05

Thermocouple open or
temperature outside of limits.

Check the connection with the
sensors and their integrity.

E-06

Off-line in master mode remote
process

Check the serial connection, baud­rate and device ID .

45

14

Summary of Configuration parameters

Date: Model ATR142:
Installer: System:

Notes:

Command output type selection
Analog input configuration
Number of decimal points
Lower limit setpoint
Upper limit setpoint
Lower limit range An1 only for linear
Upper limit range An1 only for linear
Automatic setting of linear input limits.
Offset calibration
Gain calibration
Regulation type
Command output reset type
Contact state for command output in case of error
Define the OUT1 led state
Hysteresis in ON/OFF or dead band in P.I.D.
Command delay
Command setpoint protection
Proportional band
Integral time
Derivative time
Cycle time
Limit of output power %
Alarm 1 selection
Alarm 1 output contact and intervention type
Reset type of alarm 1 contact.
State of contact for alarm 1 output

46

State of OUT2 led
Alarm 1 hysteresis
Alarm1 delay
Alarm 1 set protection
Alarm 2 selection
Alarm 2 output contact and intervention type
Reset type of alarm 2 contact
State of contact for alarm 2 output
State of OUT2 led
Alarm 2 hysteresis
Alarm 2 delay
Alarm 2 set protection
Cooling fluid type
Proportional band multiplier
Overlapping/Dead band
Cycle time for cooling output
Analog converter filter
Sampling frequency of analog converter
Display filter
Autotuning type selection
Command setpoint deviation for tuning threshold
Operating mode
Automatic/manual selection
Digital input functioning
Gradient for soft start
Cycle maintenance time
Gradient change and maintenance time by user
Display data selection
Degree type selection
Select baud rate for serial communication
Select slave address
Select the serial delay
Select value to retransmit by ModBus

47

Seelct address for retransmission
Lower limit of retransmission range
Upper limit of retransmission range

Note

48

49

50

51

52

PIXSYS

Via Tagliamento, 18

30030 Mellaredo di Pianiga (VE)

www.pixsys.net

e-mail: [e-mail] - [e-mail]

Software Rev. 1.04

2300.10.093-RevC 200608

*2300.10.093-C*