Pixsys ATR620 User manual

ATR620

3
Contents
20 Introduction.................................................................................................... 54
21 Models........................................................................................................... 54
21.1 Ordering codes....................................................................................... 54
22 Technical data............................................................................................... 55
22.1 Main features ......................................................................................... 55
22.2 Hardware data........................................................................................ 55
22.3 Software data......................................................................................... 56
23 Sizes and installation...................................................................................... 56
24 Electrical wirings............................................................................................ 57
24.1 Wiring plan............................................................................................. 57
25 Displays and keys.......................................................................................... 60
25.1 Numerical indicators (displays)................................................................ 60
25.2 Leds....................................................................................................... 61
25.3 Keys ...................................................................................................... 61
26 Programming and configuration...................................................................... 62
26.1 Programming (or modifying) cycle data ................................................... 62
27 Start of a cycle............................................................................................... 66
27.1 Cycle start and programming of delaied start........................................... 66
27.2 Function “Fast advancement”.................................................................. 67
27.3 Function SIMPLE CONTROLLER with cycle in execution ........................ 67
27.4 Function SIMPLE CONTROLLER in STOP mode.................................... 68
27.5 Auto-tuning............................................................................................. 69
27.6 Activate remote setpoint by input 2 ......................................................... 69
27.7 Activate remote setpoint by serial input ................................................... 70
27.8 Manual control of output ......................................................................... 71
28 Configuration for installer................................................................................ 72
28.1 Modify numeric value of parameter.......................................................... 72
28.2 Modify configuration parameter............................................................... 72
28.3 Memory Card ......................................................................................... 74
29 List of configuration parameters...................................................................... 75
30 Alarms operating............................................................................................ 86
31 Special software functions.............................................................................. 88
31.1 Recovery of interrupted cycle with automatic gradient.............................. 88
31.2 Recovery of interrupted cycle with programmable gradient....................... 89
31.3 Waiting function...................................................................................... 89
31.4 Double loop: control the gap between processes..................................... 90
32 Communication protocol Modbus RTU............................................................ 90
32.1 Main features ......................................................................................... 90
32.2 Function Master...................................................................................... 91
32.3 Word addresses ATR620........................................................................ 91
33 Error messages ............................................................................................. 93
34 Application on industrial kilns.......................................................................... 94
35 Kiln with single thermocouple and SSR control................................................ 94
36 Kiln with 2 thermocouples and contactor control.............................................. 96
37 Kiln with 4 thermocouples -4 units ATR620 Configuration Master/Slave......... 98
38 Configuration table........................................................................................100

54
20 Introduction
Programmers ATR620 are the results of a wide experience with
applications for temperature and process control by Pixsys
(www.pixsys.net ).
High configurability of both hardware and software resources
allows the installer to configure the controller assuring both user-
friendliness for the operator and at the same time the
programming of complex and accurate firing profiles.
To program a cycle means basically to enter couples of values
time /temperaure (setpoint) for each segment of the cycle. Each
controller can be connected to one or two sensors; the output
options include relays and SSR control. Other resources are
available for the management of alarms, auxiliary and digital
commands. Possibility to integrate the unit into supervisory
systems or communication networks is assured by RS485 and
protocol Modbus-RTU with Master/Slave modality.
Memory card allows to quickly copy parameters and cycle data,
keeping record of the different configurations.
**Chapters 26.1 and 27.1 specifically focus on the operating
instructions for the users.
21 Models
The series ATR620 includes two versions: the following table
allows to choose the correct model.
21.1 Ordering codes
ATR620- o
o
o
Inputs 2
2 Inputs TC-RTD-V/mA
1
2 relays + 1 output SSROutputs 2
3 relays
Power supply ABC
24/230/115Vac ±15% 50/60Hz

55
22 Technical data
22.1 Main features
Visualizers
4 displays 0,56 inches
4 displays 0,28 inches
Operating temperature 0-45°C, humidity 35..95uR%
Sealing
IP54 Frontal, IP30 box, IP20 terminals
block
Material Noryl 94V1 self-extinguishing
Weight 400g
22.2 Hardware data
Analog input 1: AN1, AN2
Software configurable
Input An. 1
Thermocouple K, S, T, R, J, E
RTD type PT100, Ni100
Input An. 2
Thermocouple K, S, T, R, J, E
Input 0-1V, 0-10V,0-20mA, 4-
20mA
Accuracy
(25°C)
0.2 % ± 1 digit
for input TC,
RTD , V, mA
Relay outputs
2/3 relays: OUT, A1, (A2)
Configurable for command or
alarm
Contacts 8A-
250V~
SSR output
1 output: A2
Configurable for command or
alarm
Output 12Vdc
30mA
Serial input
1: RS485 , Modbus protocol
Digital input
1: IN1, IN2
Configurable as Input START/STOP, signal
, HOLD input

56
22.3 Software data
Control algorithm
ON-OFF with hysteresis,
P, PI, PID, PD time proportioning
Proportional band
0...9999°C or °F
Integral time
0...9999 sec (0 excludes)
Derivative time
0,0...999,9 sec (0 excludes)
Software functions
Auto-Tuning , configurable alarms
Programmable
cycles
15 cycles, max 20 segments (steps) for
each cycle + function “simple controller”
with programmable setpoint
Remote control
Setpoint received by analog or serial input
Manual function
Increase/decrease manually the percentage
of output (manual control of power)
23 Sizes and installation

57
24 Electrical wirings
Altough this controller has been designed to resist
noises in an industrial environment, please notice the
following safety guidelines:
•Separate control wires from power wires
•Avoid mounting close to remote control switching
systems, electromagnetic relays, powerful
engines
•Avo
id proximity of power systems, especially
those with phase control
24.1 Wiring diagram

58
Power supply
24/115/230Vac ±15% 50/60Hz
(selction by internal jumper)
Default selection: 230 Volt
Version ATR620-xxABC
Set SW1 as in the drawing beside to select
proper power supply
Analog input AN1
Thermocouples type K, S, T, R, J, E
• Respect polarity
• When extending thermocouples be sure to
use the correct extension/compensating
cable
P
T
1
0
0
N
I
1
0
0
PT100, NI100
• For a three-wire wiring use cables with
the same diameter
• For two-wire wiring, short-circuit
terminals 14 and 15
1
2
3
Analog input AN2
Thermocouples type K, S, T, R, J, E
• Respect polarity
• When extending thermocouples be sure to
use the correct extension/compensating
cable
Signals 0-1V, 0-10V, 0-20mA, 4-20mA
• Respect polarity

59
P
:
0
.
.
.
1
0
0
m
b
a
r
P
m
a
x
:
3
b
a
r
T
:
0
.
.
7
0
°
C
O
U
T
:
4
.
.
.
2
0
m
A
I
N
:
9
.
.
.
3
3
V
D
C
Signals 0/4….20mA with 3-wires sensor
Respect polarity
A=Sensor output
B=Sensor ground
C=Sensor supply
P
:
0
.
.
.
1
0
0
m
b
a
r
P
m
a
x
:
3
b
a
r
T
:
0
.
.
7
0
°
C
O
U
T
:
4
.
.
.
2
0
m
A
I
N
:
9
.
.
.
3
3
V
D
C
Signals 0/4….20mA with 2-wires sensor
Respect polarity
A=Sensor output
C=Sensor supply
Serial or digital input
Configurable as serial input or two digital
inputs
• RS485 Modbus
Relay / SSR outputs
Contact capacity 8A/250V~ resistive
• Configurable as command or alarm
• Configurable as N.O. or N.C.
Contact capacity 8A/250V~ resistive
• Configurable as command or alarm
• Configurable as N.O. or N.C.
Version ATR620-21ABC:
• Capacity 12V/30mA
Version ATR620-22ABC:
• Contacts capacity 8A/250V~ resistive
Configurable for control or alarm N.O. or N.C.

60
25 Displays and keys
1
2
54
3
6
7
8
10
9
11
12
25.1 Numerical indicators (displays)
1
GREEN
Visualize usually process value (ex. Value
read by thermocouple), but may also
visualize setpoint value, time elapsed after
cycle start1, step number2, percentage
value of output , value of entering parameter
during configuration 15.
2
RED
Visualization on this dispay is programmable
and may be chosen as setpoint value,
elapsed time or step/cycle in progress.
Visualize number of entering parameter
during configuration. VisuaIize Step-
time
(ex.:01-T) or step-setpoint (ex.:01-S) which is
being entered during cycle programming.
1Example for 1 hour, 5 minutes
2Example for step no. 3
15 See chap.26

61
25.2 Leds
3 ON when output OUT is active
4 ON when output A1 is active
5 ON when output A2 is active
6
ON with cycle in progress, flashing if function “Simple
controller” in progress, remote setpoint, manual control,
serial communication.
25.3 Keys
7
• Scroll or modify parameters during configuration
• Scroll available cycles (to start or modify)
• Modify time or setpoint values when programming cycles
• Modify setpoint when function “Simple controller” (TERM)
is working
• Fast advancement with cycle in progress
8
• Scroll or modify parameters during configuration
• Scroll available cycles (to start or modify)
• Modify time or setpoint values when programming cycles
• Modify setpoint when function “Simple controller” (TERM)
is working
• Fast go back with cycle in progress
9
• Visualize duration of latest completed cycle if controlIer is in
STOP mode
• Second process only if enabled
• Scroll flashing digit to modify values during configuration of
parameters
• With cycle in progress, visualize (cycling) setpoint value and if
configured also other data.
10
• Enter list of available cycles or configuration mode when the
controller is in STOP mode
• Press it for more than 1 second to enter functions menu with
cycle in progress
11
• Start new cycle or stop cycle in progress
• ESCAPEkey when the controller is in configuration mode
12
• Confirm entered value or selected function

62
26 Programming and configuration
There are two different levels of programming :
1. Programming of cycles (for operator/user) means entering of
time/setpoint values for each step/segment of cycle.
2. Configuration (for manufacturer/installer of plant) means entering
of basic parameters (sensor type, outputs functioning, operating of
auxiliary output ..).
26.1 Programming (or modifying) cycle data
With or without starting setpoint, with or without timed
auxiliary outputs ***
***The above specifications underline the possibility given to the
installer (plant’s manufacturer) to choose the sequence of
operations required for the programming of a firing cycle.
This paragraph includes all availa
ble options. In case that the
installer decides to chose a simplified programming with less
options, it is highly recommended to prepare additional/separate
instructions specifying only the selected sequence. The file of this
paragraph is available in the Download section at www.pixsys.net
and it may be used for this purpose.
Set the controller to mode and follow the points below
Press Display Do
1
Red display shows
.
2
Increase or decrease to
visualize visualizzare
for cycle no.1
for cycl no.2
up to for cycle no.
15.

63
26.1.1 Programming of starting set-point (if configured)
Press Display Do
3
Red display shows
16 or , then
(see configuration of
visualization Par.19, 4th
digit).
Green display shows the
“starting setpoint”.
Otherwise go to point 5.
At any time press
to quit the programming
mode and save
modified data..
4
Increase/decrease value on
green display. Enter starting setpoint (ex. Temperature at
cycle start)
16 The first two digits indicate number of step. Last digit shows entering the
time value/duration of step or entering setpoint value (ex.:temperature value
to reach within the programmed time)

64
26.1.2 Cycle programming (programming of steps/
segments)…
Press Display Do
5
Red display shows
or number of step which is
being modified (for a few
seconds), then .
Red display shows time
value (duration) of step.
6
Increase / decrease the
value on green display
N.B.:Max. 20 steps can be
programmed for each cycle.
Then the controller
automatically goes to point
12.
Enter duration of step
as hours:minutes
** Enter
for endless time or
enter
for cycle end (in case
that not all available
steps are required) and
skip to point 12.
7
Red display shows
or number of step which is
being modified and then
.
Green display shows
setpoint of step
(temperature to reach within
the selected time)
Use arrow keys +
to enter setpoint
value (temperature
required at end of each
step)

65
26.1.3 Programming of auxiliary output (if configured)
Press Display Do
8
Green display shows
or . If output A1 is not
programmed as timed
auxiliary, go to point 10.
9
Select the state of
auxiliary output during
the step: for
active or for not
active
10
Green display shows
or .
If output A2 is not
programmed as timed
auxiliary, go back to
point 5
11
Select the state of
auxiliary output during
the step: for
active or for not
active .
Go back to point 5.
26.1.4 End of programming…
Press Display Do
12
The controller returns
to STOP mode,
storing the
programmed cycle.
Red display
shows .
In case that outputs (A1, A2)
are programmed as
auxiliaries, repeat points 9
and 11 to program the state
of outputs after cycle stop.

66
27 Start of a cycle
27.1 Cycle start and programming of delaied start
Red display shows .
Press Display Do
1
Red display shows
available cycles
2
Increase or decrease
until the chosen cycle is
visualized
(for cycle no.1),
(for cycle
no.2)...
3
or
Cycle starts. Buzzer
rings. Green display
shows process value, red
display shows the value
which has been selected
on P-51, 1st digit
If function “Delayed start” is enabled (see P-01, 2nd digit)
follow the table below
4
or
Red display shows
, green display
shows flashing the
programmed time.
5
Increase or decrease the
waiting time after cycle
Start (Hours:Minutes).
6
Start of waiting time. At
elapsing of programmed
time, cycle will start.. Press to modify
time value

67
27.2 Function “Fast advancement”
During cycle execution or in case of restart after an interruption, it
may be useful to change the programmed time value of the
running cycle (onwards or backwards) to meet the required
setpoint.
Press Display Do
1
Forwards or backwards on
cycle (each beep of
internal buzzer means one
minute).
To stop the cycle and set
the controller in
mode before end of cycle
press .
27.3 Function SIMPLE CONTROLLER17 with cycle in
execution
This function can be activated during cycle execution.
Press Display Do
1
Red display shows
flashing. Keep pressing the key
for approx. 1 second.
2
Red display shows
. The controller
activates the output to hold
the programmed
temperature
3
Modify setpoint value. Red
display shows and
green display shows new
setpoint for a few seconds.
To quit the function press
(the controller returns to the
the cycle which was
previously in execution).
17 Access to this function can be denied to the operator on P-01, 2nd digit

68
27.4 Function SIMPLE CONTROLLER in STOP mode.
Set the controller to mode.
Press Display Do
1
Red display shows
available options
2
Increase until is
visualized
3
Red display shows
, Green display
shows setpoint value.
4
Increase or decrease
setpoint value Enter required setpoint value.
5
The controller activates
the output to hold the
programmed
temperature..
6
Values are visualized
cycling. To modify setpoint
press and/or arrow
keys (again and arrow
keys for )
To quit the function press
.

69
27.5 Auto-tuning
Auto-tuning18
function can be started if the controller is configured
as SIMPLE CONTROLLER.
Process value must be at least 35% lower than setpoint value
(to avoid overshooting of temperature above setpoint
value). If two
process are enabled, please go to P-19/1st
digit, to choose the
process to which Autotuning will refer.
Press Display Do
1
is flashing on red
display. Keep pressing for 1 second.
2
Red display shows
The controller starts the
self-calibration cycle
Wait until the writing
disappers. To stop the
function before it is
completed, press .
27.6 Activate remote setpoint by input 2 19
Set the controller to mode and follow the points below.
Press Display Do
1
Red display shows available
options.
2
Increase or decrease until
is visualized
3
Green display shows process
value. The controller activates
control output.
To quit the function press
18 Access to this function can be denied to the operator on P-01, 2nd digit
19 To configurate this function, select 0 (remote setpoint) on 4th digit of P-01
and “ Remote setpoint by analog input AN2” on 4th digit of P-05.

70
27.7 Activate remote setpoint by serial input20
Set the controller to mode.
To start the function by serial input, write 1 at modbus address 15:
this operation must be repeated at least every 8 seconds,
otherwise the controller will return to mode
To quit the function write 0 at the same address.
Setpoint values
must be entered at Modbus address 9 for
process 1 and at address 10 for process 2.
20 To configurate this function, select 0 (remote setpoint) on 4th digit of P-01
and “ Remote setpoint by analog input AN2” on 4th digit of P-05

71
27.8 Manual control of output21
This functions allows to control/modify manually the command
output to exclude automatical control of process. The output is
activated as percentage 0 -100% according to the time basis
entered on parameter P-30 (cycle time).
Set the controller to mode and follow the points below:
Press Display Do
1
Red display shows
available options
2
Increase/decrease until
is visualized
3
Green display shows
percentage of outputThe
controller activates the
output.
4
Visualize percentage value
of output 1 (cycling also
value of output 2 if
enabled).
To modify percentage
press funtil red
display shows
(or if two
process are enabled)
and press to
modify value.
To quit the function press
21 Access to this function can be denied on P-01, 3rd digit.