Important Warning; User Interface - Carel MasterCase2 Hoja De Instrucciones

Important warning:

The symbol
Do not touch the components as they may be live. Do not use the appliance in any way other than specifi ed in the manual, otherwise the
protection provided by the appliance may be affected.

2. USER INTERFACE

MasterCase2 uses the PGD0 display and the standard PST small series terminals as the user interface. These terminals, as well as being
used for other Carel instruments (thus reducing the number of product codes), make various solutions available:
• PGD0 terminal with 6 buttons;
• PST small terminal with 3 digits and 3 buttons;
• simple remote display with 3 digits.
Important: the presence of the PGD terminal excludes the use of the PST terminal that, if present, is disabled and the display is no longer
updated.
Each button is backlit by LED to signal the status of the unit (active outputs, alarms, etc.).
The terminals are not required for the operation of MasterCase2, but rather only to access the programming functions.
The terminals can be connected "live", that is, with the instrument on, without creating problems in operation.
2.1 Functions of the buttons and LEDs, PST small terminal
Button Function
UP
DOWN
ENTER
on the board indicates that the level of voltage is dangerous to people.
Fig. 2.a
Description
Normal operation
• Pressed for more than one second activates or deactivates the light relay;
• Pressed together with ENTER displays the value of the third probe (S3);
• Pressed together with DOWN for 5 seconds activates or deactivates the continuous cycle function.
Parameter programming
• Moves from one parameter to the previous;
• Increases the value of the selected parameter;
• Pressed together with ENTER returns to the list of menus.
LED
• Steady: controller on
Normal operation
• Pressed for 5 seconds starts a local manual defrost, if the conditions allow;
• Pressed for 5 seconds together with ENTER starts a network manual defrost, if the conditions allow;
• Pressed together with UP for 5 seconds activates or deactivates the continuous cycle function;
• Pressed together with ENTER displays the value read by the defrost probe (S2);
Parameter programming
• Moves from one parameter to the next;
• Decreased the value of the selected parameter.
LED
• Steady: defrost active
Normal operation
• Silences the alarm audible (buzzer) and deactivates the alarm relay, if active;
• Pressed for 5 seconds together with DOWN starts a network manual defrost, if the conditions allow;
• Pressed for 5 seconds displays the control set point;
• Pressed for more than 6 seconds, without active alarms, accesses the type F parameters, entering the
password PP (22) accesses all the parameters, divided into groups, for modifi cation.
• Pressed together with UP displays the value read by the third probe (S3);
• Pressed together with DOWN displays the value read by the defrost probe (S2);
Parameter programming
• Displays the value of the selected parameter or exits programming mode;
• Pressed together with UP returns to the list of menus.
LED
• Steady: alarm active
14
Tab. 2.a
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