Carel srl: pCO Stage Controller
page 4
Display
Features
• number of digits: 6
• colour: green
• height: 13mm
• number of side indicator LEDs: 5
• number of LEDs indicating the displayed function: 3+3
Function indicator LEDs
The 5 LEDs placed beside the display have the following meaning:
1. On LED at least one device, controlled by the probe 1, is active;
Flashing action at least one device, controlled by the probe 1, is in timing phase, that is its has been required,
but it remains off as long as its timing is fulfilled;
Off LED no device, managed by the probe 1, is active;
2. On LED at least one device, managed by the probe 2, is active;
Off LED no LED, managed by the probe 2, is active;
3. On LED night setpoint is active (sepoint 2);
4. On LED indicates that the setpoint variation is coming from an analog input (external setpoint);
5. On LED indicates that the communication with the supervisory network is active;
The 6 LEDs placed in the display indicate the unit of measure of the values detected by the two linked probes
(selections made in the programming-code branch):
bar pressure;
°C temperature;
°F in degrees Fahrenheit
Obviously only one of the 3 indicated LEDs can be on.
COMPRESSORS
FANS
SET 2
SET EXT
NETWORK
Bar
Bar
°
C
°
C
°
F
°
F
Fig. 4
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