Monitoring And Control; Controller; The Pldpro Terminal - Carrier 42AM Regelungshandbuch

1 - MONITORING AND CONTROL

1.1 - Controller

Each air heater is managed by the controller. In addition to its control functions, it also monitors and detects any faults with the air
handling unit.
IMPORTANT: To avoid any problems, the password must be known only by qualified personnel.

1.2 - The pLDPRO terminal

The terminal is supplied equipped with an LCD screen (8 lines x 22 characters) with six control keys. It is installed on the front of the
unit's electrical box. It allows all of the program operations to be carried out. The terminal can be used to display the unit's operating
conditions and change its parameters.
The pLDPRO terminal displays the following data:
- Values of connected sensors
- Unit on/off cycles
- Calibration of the sensors
- Fault detection
- The password-protected configuration and operating parameters
- Device running times and time delays
The connection with the pLAN network allows the program to use a terminal mounted on the front of the AHU and/or a wall-mounted
terminal installed in the room to be air conditioned.
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Key



 + 
Description
Back button
Provides access to the "Menu"
The key is used to display the active faults in the alarms menu, to
acknowledge any faults and to indicate a fault if the red warning light on
the key is lit.
The  key has two functions:
1: to manage the screens on the display (next screen)
2. to adjust the values of the monitoring parameters (decrease)
The key has two functions:
1: to manage the screens on the display (previous screen)
2: to adjust the values of the monitoring parameters (increase)
- Enter key:
Used to access the various menus from the drop-down menu to validate
the data entered.
Unit on/off: press these keys simultaneously to switch the unit on or off.
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