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