Operation Instruction PAW-PACR4 Operation Instruction PAW-PACR4 Author: Marco Bauer Date: 22.01.2023 Status: 1.0.
Operation Instruction PAW-PACR4 Contents 2 BASICS .............................................................................................................................................3 2.1 MENU STRUCTURE ........................................................................................................................3 2.2 MENU NAVIGATION ......................................................................................................................5 2.3 SETTING VALUES ..................
2 BASICS The user interface is designed as an OLED display with a rotary wheel and push button. After switching on the device, an automatic system initialization is carried out, in which all four air conditioning units are activated one after the other by the control. In a first step, only devices that return an "active message" via digital inputs, within a defined period, are used for temperature control for the period in which the controller is active.
Complete display of each menu and submenu screen: Default display (Overview) Parameter Menu 4
Process data menu Error menu 2.2 MENU NAVIGATION The rotary wheel can be used to navigate through the individual main menus. Pressing the pushbutton will access a respective submenu. Within the submenus, the rotary wheel is used to navigate between the individual items. The "Back" button brings you back from the submenu to the main menu. 2.3 SETTING VALUES The parameters displayed can only be changed/adjusted in the parameter menu. To do this, navigate to the corresponding menu item.
2.4. DEFAULT DISPLAY In case no specific menu is selected or after more than 1 minute of inactivity without any user interaction, the display will show the default contents as specified under “Overview”. After another minute of no user interaction, the display will become dark until any button is pushed again. 3 PARAMETERS The individual parameters and their effects are described below. 3.
3.7 ROTATION TIME Dependent on the time limit set within this function, after each new unit request from temperature limit 1, but also after a certain running time, the "master unit" is changed in rotation. Only units that have signaled their availability during the initialization run and that are not currently in a fault state can be considered as new master units.
4.1 AVAILABLE AGGREGATES This shows which of the 4 possible systems or groups of systems are currently available, considering the system initialization during startup, as well as the current alarm messages from each system or group of systems. 4.2 CURRENT UNITS Here you can see which systems or groups of systems are currently activated based on the temperature limit, the rotation of the master unit and the fault status.
15: External temperature control switched off 16: 1st active system reports an alarm via Modbus 17: 2nd active system reports an alarm via Modbus 18: 3rd active system reports an alarm via Modbus 19: 4th active system reports an alarm via Modbus 20: 1st system does not start despite a Modbus request 21: 2nd system does not start despite a Modbus request 22: 3rd system does not start despite a Modbus request 23: 4th system does not start despite a Modbus request 9
