Pixsys ATR 142 User manual

ATR 142
Controller
User manual

Table of contents
1 Safety standards................................................................................ 6
2 Model Identification ......................................................................... 6
3 Technical Data ................................................................................... 7
3.1 General Features...................................................................... 7
3.2 Hardware Features.................................................................. 7
3.3 Software Features ................................................................... 8
4 Dimensions and Installation.......................................................... 8
5 Electrical wirings ............................................................................... 9
5.1 Wiring diagram........................................................................ 9
6 Configuration EASYUP...................................................................13
7 Display and keys functions...........................................................14
7.1 Numeric indicators (Display).............................................. 14
7.2 Meaning of status lights (Led)............................................14
7.3 Keys............................................................................................15
8 Controller functions........................................................................ 15
8.1 Modifying main setpoint and alarm setpoint values ..15
8.2 Auto-Tune ................................................................................16
8.3 Manual tuning........................................................................16
8.4 Automatic tuning ..................................................................16
8.5 Soft start...................................................................................16
8.6 Automatic / manual regulation for % output control. 17
8.7 Pre-Programmed cycle ........................................................ 17
8.8 Memory card (optional).......................................................18
8.9 Loading default values.........................................................19
8.10 LATCH ON functions..............................................................19
8.11 Digital input functions .........................................................20
8.12 Dual action heating-cooling..............................................22
9 Timer operation...............................................................................24
9.1 Single timer .............................................................................24
9.2 Dual timer................................................................................24

9.3 Dual sequential timer...........................................................25
9.4 Dual timer loop ......................................................................26
9.5 Relating timers to alarms ....................................................26
10 Serial Communication...................................................................27
10.1 Slave ..........................................................................................27
10.2 Master.......................................................................................32
10.2.1 Master mode in retransmission............................32
10.2.2 Master Mode Remote process...............................34
11 Configuration...................................................................................34
11.1 Modify Configuration Parameter......................................34
12 Table of configuration parameters ............................................35
13 Alarm Intervention Modes............................................................50
14 Table of Anomaly Signals..............................................................54

6 - ATR142 - User manual
Introduction
Thank you for choosing a Pixsys controller.
With the ATR142 model Pixsys makes available in a single
device multiple options related 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
stock by rationalising investment and device availability. The
series includes a version equipped with serial communication
RS485 Modbus. 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.
1 Safety standards
Carefully read the instructions and safety measures in this
manual before using the device. Disconnect power before
performing any interventions on the electrical connections
or hardware settings. Only qualified personnel may use/
perform maintenance in full respect of the technical data and
declared environmental conditions.
Do not dispose of electrical appliances together with
household waste. In compliance with the European Directive
2002/96/EC, waste electrical equipment must be collected
separately for eco-compatible reuse or recycling.
2 Model Identification
Refer to the table below to easily select preferred model.
All versions available with power 24…230 Vac/Vdc +/-15%
50/60Hz – 4,6VA
ATR142-ABC 2 relays (8A+5A) + 1 SSR
ATR142-ABC-T 1 relays 8A + 1 Ssr + RS485

User manual - ATR142- 7
3 Technical Data
3.1 General Features
Display 4 0.40 inch displays + 4 0.30 displays
Operating
temperature 1 relays 8A + 1 Ssr + RS485
Sealing IP65 front panel (with gasket)
IP30 box, IP20 terminals
Material Polycarbonate UL94V2 self-extinguishing
Weight 100 g
3.2 Hardware Features
Analogue
input
AN1. Configurable
via software.
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 (full
scale) for thermocouple
input, thermo-
resistance and V/mA.
Cold junction accuracy
0.1°C/°C
Impedance:
0-10V: Ri>110K Ω
0-20mA: Ri<5Ω
4-20mA: Ri<5Ω
0-40mV: Ri>1MΩ
Relay
output
2relays (ATR142-ABC)
1relay (ATR142-ABC-T)
Configurable as
command and/or alarm
output
Contacts:
Q1: 8A-250V~
for resistive loads
Q2: 5A-250V~
for resistive loads
SSR
output
1 SSR Configurable as
command output and/
or alarm output. 12Vdc/30mA

8 - ATR142 - User manual
Supply Power supply 24..230 Vac/Vdc +/-15%
50/60Hz
Power consumption
4.6VA
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
U1
C1
CN1
1 6
123
Dima di foratura
28.5 x 70.5 mm
Frontal panel cut-out
Spessore suggerito
2 ÷ 8 mm
Suggested thickness
77 mm
35 mm
53 mm
7
42mm
inserimento
Memory Card
42mm
insert
Memory Card
PIXSYS
Memory Card (optional)
with battery
Memory Card (optional)
Cod. MEMORY 2100.30.005
Cod. MEMORY 2100.30.003
Guarnizione per 32x74
Cod. 1600.00.082 (optional)
Gasket for 32x74

User manual - ATR142- 9
5 Electrical wirings
Although this controller was designed to resist electro-
magnetic interferences in industrial environments, please
observe following safety guidelines:
• Separate the control line from the power wires.
• Avoid proximity of remote control switches, electroma-
gnetic contactors, powerful engines and in all instances
use specific filters.
• Avoid proximity of power groups, especially those with
phase control
5.1 Wiring diagram
PIXSYS
10A230V
Cosf 1
3A230V
Cosf 0.8
Q1 PTC/NTC
-
+
Tc
+VDC
SSR
1 2 3 4 56 7 8 9 10 11 12
-
+
I
V/I
+
-
PT/NI100/1K
2 wire 4/20mA
Power
5A230V
Cosf 1
1A230V
Cosf 0.8
Q2
Memory
1
ATRxxx-xx
-
+
SUPPLY
PIXSYS
10A23a0V
Cosf 1
3A230V
Cosf 0.8
Q1 PTC/NTC
-
+
Tc
+VDC
SSR
1 2 3 4 56 7 8 9 10 11 12
-
+
I
V/I
+
-
PT/NI100/1K
2 wire 4/20mA
Power
Memory
1
-
+
ATRxxx-xxT
-
+
RS485
SUPPLY
ATR142-ABC ATR142-ABC-T
5.1.a Power Supply
1 2
24...230V
AC/DC
Switching power supply with extended
range 24..230 Vac/dc ±15% 50/60Hz –
5,5VA.
5.1.b AN1 Analogue Input
-
+
Tc
11 12
Shield/Schermo
For thermocouples K, S, R, J.
• Comply with polarity
• For possible extensions, use
compensated cable and terminals
suitable for the thermocouples
used(compensated)
• When shielded cable is used, it should
be grounded at one side only

10 - ATR142 - User manual
10 11 12
PT/NI100
Shield/Schermo 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
10
11
12
RED
WHITE
RED
Shield/Schermo
PTC/NTC
10 11
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
Shield/Schermo
+VDC
910 11 12
V/I +-
For linear signals V/mA
• Comply with polarity
• When shielded cable is used, it should
be grounded at one side only
5.1.c Examples of Connection for linear input
0...10V
1112
For signals 0..10V
• Comply with polarity
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
0/4...20mA
A
B
C
1112 9
For signals 0/4..20mA with three-wire
sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
A = Sensor power supply (12V/30mA)

User manual - ATR142- 11
EXTERNAL SUPPLY
ALIMENTAZIONE ESTERNA
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
0/4...20mA
B
C
1112
For signals 0/4..20mA with external
power of sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
C
4...20mA
A
12 9
For signals 0/4..20mA with two-wire
sensor
• Comply with polarity
C = Sensor output
A = Sensor power supply (12V/30mA)
5.1.d Serial input
1176
-
+
Shield/Schermo
RS485
RS485 Modbus RTU communication
Do not use LT (line termination)
resistors
• For networks with more than
five instruments supply in low voltage

12 - ATR142 - User manual
5.1.e Relay Q1 Output
7 6 5 4
Q1
Q2
3
Capacity:
• Q1: 8A, 250Vac,resistive loads,105
operations. 30/3A, 250Vac, cosφ=0.3,
105operations.
• Q2: 5A, 250Vac, resistive loads, 105
operations. 20/2A, 250Vac, cosφ=0.3,
105operations.
5.1.f SSR output
SSR
8 9
SSR command output 12V/30mA
5.1.g Digital Input
10 11
Digital input according to parameter
DGT.i .
The use of digital input in this version is
possible only with TC sensors or 0..10V,
0/4..20mA and 0...40mV signals

User manual - ATR142- 13
6 Configuration EASYUP
To simplify the setting of parameters and the integration of
the different components involved in the control system,
Pixsys introduces the EASY-UP coding which allows to set
sensors and/or command outputs in a single step.
By means of the code listed in the data sheet enclosed
to the sensor or actuator (SSR, motorized valve etc..) the
EASY-UP coding will set the relevant main parameters on
the controllers (ex. selection of PT100 on parameter “Sensor”
and the corresponding measuring range on parameters
“Lower and Upper limits of setpoint”).
Different codes may be entered on the controllers in sequence
to configure inputs, control output or retransmission of signal.

14 - ATR142 - User manual
7 Display and keys functions
5
4
38
7
62
1
M T R
2 3
9
10
12
11
ATR 142
1
7.1 Numeric indicators (Display)
11234
Normally displays the process. During the
configuration phase, it displays the parameter
being inserted.
21234
Normally displays the setpoint. During the
configuration phase, it displays the parameter
value being inserted.
7.2 Meaning of status lights (Led)
31
ON when the output command is on. For
motorised valve command, led is ON when valve
is opening and blinks when closing.
42ON when alarm 1 is on.
53ON when alarm 2 is on.
6MON when the “Manual” function is on.
7TON when the controller is running an
“Autotuning” cycle.
8RON when the controller communicates via serial
port.

User manual - ATR142- 15
7.3 Keys
9 “
m
”
• Allows to decrease main setpoint.
• During configuration phase, allows to slide
through parameters. Together with SET key it
modifies them.
• Pressed after SET key it allows to decrease
alarm setpoint.
10 “
n
”
• Allows to increase main setpoint.
• During configuration phase, allows to slide
through parameters. Together with SET key it
modifies them.
• Pressed after SET key it allows to increase alarm
setpoint.
11 SET
• Allows to display alarm setpoint and runs the
autotuning function.
• Allows to modify configuration parameters.
12 FNC
• Allows to run the autotuning function and to
select Manual/automatic operation.
• Allows to enter/exit for configurator procedure.
8 Controller functions
8.1 Modifying main setpoint and alarm
setpoint values
Setpoint value can be changed by keyboard as follows:
Press Effect Do
9 “
n
” or “
m
”Value on display 2
changes Increase or decrease main setpoint
10 SET Visualize alarm
setpoint on display 1
11 “
n
” or “
m
”Value on display 2
changes
Increase or decrease
the alarm set point
value

16 - ATR142 - User manual
8.2 Auto-Tune
Tuning procedure calculates the controller parameters
and can be manual or automatic according to selection on
parameter 46 tune
.
8.3 Manual tuning
Manual procedure allows the user greater flexibility to decide
when to update PID algorithm parameters. The procedure
can be activated in two ways.
• Running Tuning by keyboard:
Press FNC key until display 1 shows the writing tune with
display 2 showing o FF , press “
n
”, display 2 shows on. The
Tled switches on and the procedure begins.
• Running Tuning by digital input:
Select
tune on parameter 50 d G t.i . . At first activation of
digital input (commutation on front panel) Tled switches
ON and at second activation switches off.
8.4 Automatic tuning
Automatic tuning activates whenever the controller is switched
on or when the setpoint is modified to a value over 35%.
To avoid an overshoot, the threshold where the controller
calculates new PID parameters is determined by the setpoint
value minus the “Set Deviation Tune” (Parameter 47
s.d.tu.
).
To exit Tuning and keep PID values unchanged, just press the
FNC key until display 1 shows the writing
tune
with the display
showing
on
, press “
m
” , display 2 shows
off
.
The
T
led switches off and the procedure finishes.
8.5 Soft start
To reach the setpoint the controller can follow a gradient
expressed in units (e.g. degree/hour).
Enter this gradient on parameter 51 Gra d . with the chosen
units/hour; only on subsequent activation the controller
uses soft start function.

User manual - ATR142- 17
Automatic/manual tuning cannot be enabled if the Soft start
is active.
8.6 Automatic / manual regulation for %
output control
This function allows to select automatic functioning or
manual command of the output percentage.
Parameter 49 Au.ma., can select two methods.
• First selection en.: pressing the FNC key display 1 shows
p.---, while display 2 shows Auto.
Press the “
n
”key to select man. mode; it is now possible,
to change the output percentage using the keys “
n
”
and “
m
”. To return to automatic mode, using the same
procedure, select auto on display 2: Mled switches off
and functioning returns to automatic mode.
• Second selection en.st.: same functioning, but with two
important variants:
- If there is a temporary power failure or after switch-off,
manual functioning as well as the previous output
percentage value will be maintained at restarting.
- If the sensor breaks during automatic functioning,
controller moves to manual mode while maintaining the
output percentage command unchanged as generated by
the PID immediately before breakage.
8.7 Pre-Programmed cycle
Pre-programmed cycle function activates by setting p r. cY. on
parameter 48 o p.M o .
Controller reaches setpoint1 basing on the gradient set
on parameter 51 Gra d ., then it reaches max. power up
to setpoint2. When the process reaches max. power, this
setpoint is maintained for the time set on parameter 52 ma.t.i.
At expiry, process will reach ambient temperature according
to gradient entered on parameter 64 f a . G r. , then command
output will be disabled and display will visualize Sto p .

18 - ATR142 - User manual
Setpoint
Time
Setpoint 1
Setpoint 2
Maintenance time
Mantenimento
Cooling
Rareddamento
Max Power
Max Potenza
Rising gradient
Gradiente di salita
Cycle starts at each activation
of the controller, or via
digital input if it is enabled
for this type of functioning
(parameter 50 d G t.i .).
8.8 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 memo and display 2 show
---- (Only if the correct values are saved in the memory
card). By pressing the “
n
”key display 2 shows Lo a d, then
confirm using the FNC 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 operations.
Insert the memory card and press the programming
button.
When writing the parameters, the led turns to red and on
completing the procedure it turns 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 for the first method, setting display 2 to ---- so as
not to load the parameters on controller1.
Enter configuration level and change at least one parameter.
Exit configuration. Changes are saved automatically.
1 If on activation the controller does not display memo it means no data
have been saved on the memory card, but it is possible to update values.

User manual - ATR142- 19
8.9 Loading default values
This procedure allows to restore factory settings of the device
Press Effect Do
1FNC for 3s.
Display 1 shows 0000
with the 1st digit
flashing, while display
2 shows pass
2“
n
” and “
m
”
Change the flashing
digit and move to the
next one using the
SET key.
Enter password 9999
3SET to
confirm Instrument loads default settings Turn off and restart the instrument
8.10 LATCH ON functions
For use with input P o t .1 (potentiometer 6KΩ) and Po t.2
(potentiometer 150KΩ) and with linear input (0…10V,
0...40mV, 0/4…20mA), it is possible to associate start value
of the scale (parameter 6 Lo .L.i .) to the minimum position
of the sensor and value of the scale end (parameter 7 u p.L.i .)
to the maximum position of the sensor (parameter 8 La t c.
configured as s td.). It is also possible to fix the point in which
the controller will display 0 (however keeping the scale range
between Lo .L.i . and u p.L.i .) using the “virtual zero” option by
setting u.0st. or u.0in. in parameter 8 La t c. If you set u.0in.
the virtual zero will reset after each activation of the device; if
you set u.0st. the virtual zero remains fixed once tuned.
To use the LATCH ON function, configure according to
required operation the parameter La t c.2
2 The tuning procedure starts by exiting the configuration after changing
the parameter.

20 - ATR142 - User manual
For the calibration procedure refer to the following table:
Press E ff e c t Do
1FNC
Exit parameters
configuration. Display 2
shows the writing
La tc.
Place the sensor on the
minimum operating
position (associated
with Lo .L.i .)
2“
m
”
Set the value to
minimum.
The display shows
Lo w
Place the sensor on the
maximum operating
position
(associated with u p.L.i .)
3“
n
”Set the value to maximum.
The display shows Hi G t
To exit standard
procedure press FNC.
For “virtual zero”
settings place the
sensor on zero point.
4SET
Set the virtual zero
value. The display shows
ui rt. NB: for selection
of u.0in. the procedure
on point 4 should
be followed at each
re-activation.
To exit the procedure
press FNC.
Max
Min Zero
8.11 Digital input functions
On ATR142 model, digital input can be enabled by using
parameters 48 op.mo. and 50 d G t .i .
• Parameter 48 op.mo.
 co nt.: Operating as controller.
NB: When using this settings, parameter 50 d G t.i . is
ignored.