Pixsys ATR 421 User manual

ATR 421
Controller / Regolatore
User manual / Manuale d’uso

ATR 421 - User manual 3
Summary
1 Model identication.......................................................................................................................... 7
2 Technical data .................................................................................................................................... 7
2.1 Main features ............................................................................................................................7
2.2 Hardware features ................................................................................................................... 8
2.3 Software features.....................................................................................................................8
3 Size and installation.......................................................................................................................... 9
4 Electrical wirings..............................................................................................................................10
4.1 Wiring diagram ......................................................................................................................10
5 Display and keys functions............................................................................................................14
5.1 Numeric indicators (display) ...............................................................................................15
5.2 Meaning of Status Lights (led) ............................................................................................15
5.3 Keys .........................................................................................................................................15
6 Programming and conguration ................................................................................................16
6.1 Programming (or modifying) cycle data..........................................................................16
6.1.1 Programming of starting setpoint (if enabled) ...................................................17
6.1.2 Programming of the step .........................................................................................17
6.1.3 Programming of the auxiliary output (if congured) ........................................18
6.1.4 Fine programmazione...............................................................................................18
7 Cycle start .........................................................................................................................................18
7.1 Start of a cycle and setting of delayed start ....................................................................18
7.2 Fast advancement during the cycle .................................................................................19
7.3 Simple controller function ...................................................................................................20
7.4 Output manual control.........................................................................................................20
8 Programmer functions ..................................................................................................................21
8.1 Hold function ..........................................................................................................................21
8.2 Automatic tuning ..................................................................................................................21
8.3 Manual tuning........................................................................................................................22
8.4 Recovery of interrupted cycle .............................................................................................22
8.4.1 Recovery with automatic gradient.........................................................................22
8.4.2 Recovery with recovery gradient ............................................................................23

4ATR 421 - User manual
8.5 Waiting step end.....................................................................................................................24
8.6 Special functions for Gas kilns ...........................................................................................24
8.6.1 Gas - Outputs selection ............................................................................................24
8.6.2 Gas – Management mode........................................................................................25
8.7 Feedback valve .......................................................................................................................25
8.7.1 Heating / Cooling PID ...............................................................................................26
8.8 Loading default values / Reset ............................................................................................28
8.9 Memory Card (optional).......................................................................................................28
9 Serial communication ....................................................................................................................29
9.1 Slave .........................................................................................................................................30
9.2 Master and remote setpoint................................................................................................33
10 Conguration for installer ............................................................................................................33
11 Table of conguration parameters..............................................................................................34
12 Alarm intervention modes.............................................................................................................49
13 Table of Anomaly Signals ..............................................................................................................51
14 Summary of conguration parameters .....................................................................................52

ATR 421 - Manuale uso 5
Sommario
1 Identicazione del modello...........................................................................................................55
2 Dati tecnici ........................................................................................................................................55
2.1 Caratteristiche generali ........................................................................................................55
2.2 Caratteristiche hardware .....................................................................................................56
2.3 Caratteristiche software .......................................................................................................56
3 Dimensioni e installazione ............................................................................................................57
4 Collegamenti elettrici .....................................................................................................................58
4.1 Schema di collegamento......................................................................................................58
5 Funzione dei visualizzatori e tasti................................................................................................62
5.1 Indicatori numerici (display)................................................................................................63
5.2 Signicato delle spie di stato (led)......................................................................................63
5.3 Tasti .........................................................................................................................................63
6 Programmazione e congurazione ............................................................................................64
6.1 Programmazione (o modica) dati di un ciclo ...............................................................64
6.1.1 Programmazione del set point iniziale (se congurato)...................................65
6.1.2 Programmazione dello step (spezzata/passo)....................................................65
6.1.3 Programmazione dell’uscita ausiliaria (se congurata)...................................66
6.1.4 Fine programmazione...............................................................................................67
7 Partenza di un ciclo di lavoro........................................................................................................67
7.1 Partenza del ciclo e impostazione partenza ritardata..................................................67
7.2 Funzione avanzamento veloce...........................................................................................68
7.3 Funzione regolatore semplice.............................................................................................68
7.4 Controllo manuale dell’uscita.............................................................................................69
8 Funzioni del programmatore........................................................................................................70
8.1 Funzione Hold.........................................................................................................................70
8.2 Tuning automatico................................................................................................................70
8.3 Tuning manuale .....................................................................................................................70
8.4 Recupero ciclo interrotto......................................................................................................71
8.4.1 Recupero con gradiente automatico.....................................................................71
8.4.2 Recupero con gradiente di recupero......................................................................72

6ATR 421 - Manuale uso
8.5 Attesa ne step........................................................................................................................72
8.6 Funzionamento gas...............................................................................................................73
8.6.1 Gas - Selezione uscite.................................................................................................73
8.6.2 Gas – Modalità di gestione.......................................................................................73
8.7 Valvola retroazionata ...........................................................................................................74
8.7.1 Funzionamento in doppia azione (caldo-freddo)...........................................75
8.8 Caricamento valori di default .............................................................................................77
8.9 Memory Card (opzionale) ....................................................................................................78
9 Comunicazione seriale ...................................................................................................................78
9.1 Slave .........................................................................................................................................79
9.2 Master e setpoint remoto.....................................................................................................82
10 Congurazione per installatore ...................................................................................................83
11 Tabella parametri di congurazione...........................................................................................84
12 Modi d’intervento allarmi........................................................................................................... 100
13 Promemoria congurazione...................................................................................................... 103

ATR 421 - User manual 7
Introduction
Thanks for choosing a Pixsys controller.
With ATR421 model Pixsys integrates in a single device all options for sen-
sors reading and actuators control, beside an useful supply with extended
range 24…230 Vac/Vdc. With the analogue universal input and the output
congurable as relay or SSR, the user or the retailer can reduce stock needs.
The series includes also a model with serial communication RS485 Modbus
Rtu and linear output 0-10V, 0/4-20mA. The possibility to repeat paramete-
rization is simplied by the Memory Cards with internal battery that do not
require power supply for the controller.
1 Model identication
ATR421 version includes two versions. Looking at the following table it is
possible to nd the required model.
Power supply 24…230 Vac/Vdc ±15% 50/60Hz – 5,5VA
ATR421-14ABC 1 Analogue input + 4 relays 8A + 1 SSR + D.I.
ATR421-12ABC-T 1 Analogue input + 2 relays 8A + 1 SSR
1 Output V/mA + RS485
2 Technical data
2.1 Main features
Displays 4 digits display 0,40 inches + 4 digits display 0,30 inches
Operating
Temperature Temperature 0-45°C - Humidity 35..95uR%
Sealing Front panel IP54, box IP30, terminal blocks IP20
Material Box: Noryl UL94V1 self-exstinguish
Front panel: PC ABS UL94V0 self-exstinguish
Weight Approx. 350 g

8ATR 421 - User manual
2.2 Hardware features
Analogue inputs
AI1 - Congurable via
software Thermocouples:
type K,S,R,J,E,N. Automa-
tic compensation of cold
junction from 0…50 °C.
Thermoresistances: PT100,
Input V/mA: 0-10V,
0-20mA, 4-20mA.
AI2 Feedback potentio-
meter input for motorized
valves (max. 150 KΩ).
Tolerance (25°C)
+/-0.2 % ± 1 digit for thermo-
couple,
thermoresistance
and V/mA.
Cold junction accuracy
0.1°C/°C
Impedance:
0-10V: Ri>110KΩ
0-20mA: Ri<5Ω
4-20mA: Ri<5Ω
Relay outputs Congurable as control and
alarm output.
Contacts:
8A-250V~ for resistive
charges.
Output +24V SSR and sensor supply
• 24Vdc-45mA to
115...230Vac
• 24Vdc-25mA to 24Vac/dc
Output SSR Congurable as control and
alarm output. 24Vdc
Output V/I
Congurable as control ou-
tput, alarm, retransmission
of process or setpoint.
Congurable:
0-10V (9500 points)
0-20mA (7500 points)
4-20mA (6000 points)
Supply
Extended range
24…230Vac/Vdc ±15%
50/60Hz
Consumption: 5.5VA
2.3 Software features
Control algori-
thms
ON-OFF with hysteresis.
P, PI, PID, PD time proportioned.
Proportional
band 0...9999°C o °F
Integral time 0,0...999,9 sec (0 excludes)
Derivative time 0,0...999,9 sec (0 excludes)
Controller fun-
ctions
Manual or automatic tuning, selectable alarms, special
functions for gas/electric kilns.

ATR 421 - User manual 9
3 Size and installation
U1
C1
CN1 16
MEMORY C.121
16
CN1
1 6
ATR421
C 1
C 2
A 1
A 2
A 3 MAN TUN REM
Frontal panel cut-out
46 x91 mm
Dima di foratura
MemoryCard
PQUJPOBMtPQ[JPOBMF
Cod. 2100.30.006
96 mm
48 mm
MemoryCard
11 112 mm
.FNPSZ$BSEXJUICBUUFSZPQUJPOBM
.FNPSZ$BSEDPOCBUUFSJBPQ[JPOBMF
2100.30.007
Suggested thickness 2÷8 mm
Spessore suggerito 2÷8 mm
42 mm
Insert MemoryCard
Inserimento MemoryCard
PRGM
START
STOP
OK
8
9
10
18
19
20
Q1
8A
230V
1/2HP
Q2
8A
230V
1/2HP
SUPPLY
24...230
Vac/dc
1
2
3
4
5
6
7
11
12
13
14
15
16
17
+24V
SSR
AI1 TC
V
mA
Q3
8A
230V
1/2HP
Q4
8A
230V
1/2HP
DI
(PnP)
0V
ATR421-14ABC
AI2
FEEDBACK
POT.
PT100

10 ATR 421 - User manual
4 Electrical wirings
Although this controller has been designed to resist noi-
ses in an industrial environments, please notice the fol-
lowing safety guidelines:
• Separate control lines from the power wires.
• Avoid the proximity of remote control switches, elec-
tromagnetic meters, powerful engines.
• Avoid the proximity of power groups, especially those
with phase control.
4.1 Wiring diagram
8
9
10
18
19
20
RS485
Q1
8A
230V
1/2HP
Q2
8A
230V
1/2HP
AO1
V/mA
ATR421-12ABC-T
SUPPLY
24...230
Vac/dc
1
2
3
4
5
6
7
14
15
16
17
+24V
SSR
11
12
13
AI1 TC
V
mA
AI2
FEEDBACK
POT.
PT100
8
9
10
18
19
20
Q1
8A
230V
1/2HP
Q2
8A
230V
1/2HP
SUPPLY
24...230
Vac/dc
1
2
3
4
5
6
7
11
12
13
14
15
16
17
+24V
SSR
AI1 TC
V
mA
Q3
8A
230V
1/2HP
Q4
8A
230V
1/2HP
DI
(PnP)
0V
ATR421-14ABC
AI2
FEEDBACK
POT.
PT100
Power supply
4611-:t"-*.&/5";*0/&
24...230
Vac/dc
1
2
Switching supply with extended range
24…230 Vac/dc ±15% 50/60Hz – 5,5VA

ATR 421 - User manual 11
Analogue input AI1
11
12
AI1 TC
Shield/Schermo
For thermocouples K, S, R, J, E, N.
• Comply with polarity
• For extensions make sure to use the correct
extension/compensating cable
• When shielded cable is used, it should be
grounded at one side only.
11
12
13
AI1
Shield/Schermo
PT/NI100
For thermoresistances PT100
• For a three-wires connection use cables with
the same diameter.
• For a two-wires connection short-circuit termi-
nals11 and 13.
• When shielded cable is used, it should be
grounded at one side only.
11
12
13
RED/ROSSO
WHITE/BIANCO
RED/ROSSO
11
12
17
AI1 V
mA
+24V
Shield/Schermo
For linear signals Volt/mA
• Comply with plarity
• When shielded cable is used, it should be
grounded at one side only.
Analogue input AI2
15
16
AI2
FEEDBACK
POT.
Shield/Schermo
For feedback potentiometer on motorized
valves
• Max. resistance 150 KΩ.
• When shielded cable is used, it should be
grounded at one side only.

12 ATR 421 - User manual
Examples of connection for linear input AI1
12
11
0...10V
For linear signals 0….10V
• Comply with polarity
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
17
12
11
B
C
A
4...20mA
For linear signals 0/4….20mA with three-wires
sensors
• Comply with polarity
C = Sensor output
B = Sensor ground
A = Sensor supply (24Vdc/25mA)
PRESSURE TRANSMITTER
SENSORE DI PRESSIONE
External Supply
Alimentazione esterna
12
11
C
B
4...20mA
For linear signals 0/4..20mA with external power
supply for sensor
• Comply with polarity
C = Sensor output
B = Sensor ground
SENSORE DI PRESSIONE
PRESSURE TRANSMITTER
11
17
C
A
4...20mA
For linear signals 0/4..20mA with two-wires
sensors
• Comply with polarity
C = Sensor output
A = Sensor supply (24Vdc/25mA)
Digital input (ATR421-14ABC)
19
20
17
+24V
DI
(PnP)
0V
Digital input (parameter dGt.i.).
• Close terminal “DI” (19) on terminal “+24V” (17)
to activate digital input.

ATR 421 - User manual 13
SSR output
18
17
+24V
SSR
Command output SSR: 24Vdc
NB: output +24V (17) can deliver totally 45mA if the
ATR421 is supplied at 115...230Vac and 25mA if it is
supplied at 24Vac/dc
Relay outputs Q1, Q2
8
Q1
8A
230V
1/2HP
3
4
5
6
7
Q2
8A
230V
1/2HP
Contacts capacity:
• 8A, 250Vac, resistive charge 105operations.
• 30/3A, 250Vac, cosφ=0.3, 105operations.
Relay outputs Q3, Q4 (ATR421-14ABC)
8
9
10
Q3
8A
230V
1/2HP
Q4
8A
230V
1/2HP
Contacts capacity:
• 8A, 250Vac, resistive charge 105operations.
• 30/3A, 250Vac, cosφ=0.3, 105operations.
Output mA / Volt (ATR421-12ABC-T)
9
10
AO1
V/mA
Analogue output in mA congurable as command
(Par. c. oUT) or retransmission of process-setpoint
(Par. rEtR.).
To use analogue output in mA DO NOT enter
JP3.

14 ATR 421 - User manual
9
10
AO1
V/mA
Analogue output in Volt congurable as command
(Par. c. oUT) or retransmission of process-setpoint
(Par. rEtR.).
To use analogue output in Volt enter JP3 as
indicated in the gure.
Serial input (ATR421-12ABC-T)
19
20
RS485
Shield/Schermo
Communication RS485 ModbusRTU with galvanic
isolation.
5 Display and keys functions
ATR421
C 1
C 2
A 1
A 2
A 3 MAN TUN REM
PRGM
START
STOP
OK
C 1
C 2
A 1
A 2
A 3 MAN TUN REM
3
4
6
5
78910
12
15
16
13
14
11
12

ATR 421 - User manual 15
5.1 Numeric indicators (display)
1123.4
Usually visualizes process value, it may visualize also
setpoint value, time elapsed from cycle start, number of
operating step or the percentage value of the command
output. During conguration it visualizes the value of
entering parameter.
2123.4 Visualization can be customized with setpoint, time elap-
sed from cycle start or number of operating step. During
conguration it visualizes the value of entering parameter.
5.2 Meaning of Status Lights (led)
3C1 On when command output is active. For open /close logic:
on during valve opening.
4C2 For open/ close logic: on during valve closing.
5A1 On when alarm 1 is active.
6A2 On when alarm 2 is active.
7A3 On when alarm 3 is active.
8MAN On when“Manual” function is active
9TUN On when controller is executing an auto-tuning cycle.
10 REM On when serial communication is in progress.
5.3 Keys
11
• In conguration allows to scroll and modify parameters.
• Scroll cycles to be started or modied.
• In cycle programming allows to modify time and setpoint
parameters.
• Modies setpoint in tHEr. function.
• Modies command output percentage in MAn. function.
• Allows a quick advancement of the cycle when it is in “START”.
12
• In conguration allows to scroll and modify parameters.
• Scroll cycles to be started or modied.
• In cycle programming allows to modify time and setpoint
parameters.
• Modies setpoint in tHEr. function.
• Modies command output percentage in MAn. function.
• Allows a quick retrograde of the cycle when it is in “START”.

16 ATR 421 - User manual
13
• Whit controller in STOP it visualize the duration of the last cycle.
• In conguration it assigns a mnemonic code or a number to the
selected parameter.
• During a cycle it allows to visulize cycling the setpoint and the
other data.
14
PRGM
• Whit controller in STOP allows to enter cycle modication and
conguration.
• During a cycle, if pressed for 1 second, it allows to activate/de-
activate HOLD function.
15
START
STOP
• Start/Stop a cycle.
• In parameter conguration and cycle data modication, it is
used as exit key (ESCAPE).
16
OK
• Value or selected function conrmation.
6 Programming and conguration
There are two programming levels:
1. Cycles programming (for operator/user) means entering time/setpoint
values for each step of cycle.
2. Conguration (for manufacturer/installer of plant), to enter main par me-
ters (sensor type, output type, auxiliary output intervention type ext.).
6.1 Programming (or modifying) cycle data
With or without starting setpoint and timed auxiliary outputs.
The above specications underline the possibility given to the installer
(plant’s manufacturer) to choose the sequence of operations required for the
programming of a ring cycle.
This paragraph includes all available options. In case that the installer de-
cides to choose a simplied programming with less options, it is highly re-
commended to prepare additional instructions specifying only the choosen
sequence.

ATR 421 - User manual 17
Set the controller in StoP and follow the points below:
Press Display Do
1
PRGM Red display shows cY.01
2
Decrease or increase to visuali-
ze cY.01 (for cycle no.1), cY.02
(for cycle no.2) up to cY.15 (for
cycle no.15).
6.1.1 Programming of starting setpoint (if enabled)
This is useful for example when the kiln is still hot and cycle has to start from
a lower temperature.
Press Display Do
3
OK
Red display shows 00-5.*
Green display shows“starting
setpoint”.
Otherwise pass to point 5.
At any time press
START
STOP
to exit
programming with storing
modied data.
4Increase or decrease value on
green display.
Enter starting setpoint (starting
temperature)
6.1.2 Programming of the step
Press Display Do
5
OK
Red display shows 01 - t .
Green display shows step time.
6
Increase or decrease value on
green display.
NB: Each cycle is composed of
max. 45 programmable steps,
after those it skips automati-
cally to point 12.
Enter step duration in
hour:minutes.
NB: Set for endless time or --.--
for cycle end (if not all steps are
used) and skip to point 11.
* The two rst digits indicate the number of the step which is being modied. Last digit visualizes
tif a step duration time is being entered, Sif a setpoint value is being entered (ex: temperature
to reach into selected time) and Aif the status of the auxiliary output is being entered.

18 ATR 421 - User manual
Press Display Do
7
OK
Red display shows 01 -5 . Green
display shows the step setpoint
(temperature that has to be
reached within given time).
With keys or enter
setpoint (temperature reached
at step end).
6.1.3 Programming of the auxiliary output (if congured)
Press Display Do
8
OK
Red display shows 01 - A . Green
display shows A1 . o F o A1 . o n .
If AL.1 is not programmed as
auxiliary time (A. o . r.5) skip to
point 10.
9
Set auxiliary output status du-
ring the step: A1 . o n for active
output and A1 . o F for not active
output.
10
OK
If AL.2, AL.3 or AL.4 are programmed as time auxiliary go back
to point 9. Green display will visualize the number and the status
of the selected auxiliary (A2. oF/ A2. o n, A3. o F/ A3. o n or A4. oF/
A4. o n). Once selected all auxiliary go back to point 5.
6.1.4 Fine programmazione
Press Display Do
11
OK
Controller returns in STOP
mode saving the cycle. Red
display shows StoP.
If AL.1, AL.2, AL.3 or AL.4 are
selected as auxiliary (A. o . r.5)
repeat the procedure of points
9 and 10 for the output status
at cycle end.
7 Cycle start
7.1 Start of a cycle and setting of delayed start
Red display shows StoP.
Press Display Do
1
START
STOP
Red display shows cycle
selection.

ATR 421 - User manual 19
Press Display Do
2
Decrease or Increase until
choosen cycle is visualized
cY.01 (for cycle no.1), cY.02 (for
cycle no.2),
3
OK
or
START
STOP
Cycle starts. Buzzer sounds
for a second. Green display
shows the process while red
display shows the setpoint
introduced on parameter 29
ui . d .2.
If function “Delayed start” is enabled (see parameter 30 dE.St.) follow the
points below:
Press Display Do
4
OK
or
START
STOP
Red display shows wait
while green display shows the
programmed waiting time
ashing.
5
Increase or decrease
time for delayed start
(hours:minutes).
6
OK
Start of waiting time. At
elapsing of programmed time,
cycle will start.
Press or to modify the
time.
7.2 Fast advancement during the cycle
During functioning or after a restart it can be useful to onwards or backwards
the cycle in progress, to reach chosen setpoint value.
Press Display Do
1or
Forwards or backwards (each
beep of internal buzzer me-
ans one minute).
To stop the cycle and set
the controller in , before cycle
end press
START
STOP
for a second.

20 ATR 421 - User manual
7.3 Simple controller function1
StoP controller.
Press Display Do
1
START
STOP
Red display shows selected
cycle.
2Increase until visualize tHEr.
3
OK
or
START
STOP
Red display shows SPu
while green display shows the
setpoint.
4Increase or decrease setpoint
value. Enter chosen setpoint value.
5
OK
Controller modulates the
command output to keep the
programmed temperature.
6Visualize controller values
cycling.
To modify setpoint SPu press
and/or arrow keys. To exit,
press
START
STOP
for a second.
7.4 Output manual control2
This function allows to modify manually the command output, excluding the
process control. Output will activate in percentage from 0 to 100% according
to time base set on parameter 23 t.c. (cycle time) or on parameter 43 uAL.t.
if parameter 1 c.outis set on c. uAL.
StoP controller and follow the table below.
Press Display Do
1
START
STOP
Red display shows cycle
selection.
2Increase until visualize MAn.
1 Access to this function have to be enabled on parameter 32 SP.Fu ., this function cannot be
used on gas kilns.
2 Access to this function have to be enabled on parameter 32 SP.Fu ., this function cannot be
used on gas kilns.