VDH ALFA 53-Grasso, Руководство пользователя

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* Error messages.
In the display of the
ALFA 53-Grasso
the following error messages can appear:
Sensor errors; Sensor alarms;
E0
- Oil Sensor failure.
A0
- Maximum alarm Oil Sensor
E1
- Cylinder Sensor-1 failure.
A1
- Maximum alarm Cylinder Sensor-1
E2
- Cylinder Sensor-2 failure.
A2
- Maximum alarm Cylinder Sensor-2
E3
- Cylinder Sensor-3 failure.
A3
- Maximum alarm Cylinder Sensor-3
E4
- Cylinder Sensor-4 failure.
A4
- Maximum alarm Cylinder Sensor-4
E5
- Cylinder Sensor-5 failure.
A5
- Maximum alarm Cylinder Sensor-5
E6
- Cylinder Sensor-6 failure.
A6
- Maximum alarm Cylinder Sensor-6
E7
- Cylinder Sensor-7 failure.
A7
- Maximum alarm Cylinder Sensor-7
E8
- Cylinder Sensor-8 failure.
A8
- Maximum alarm Cylinder Sensor-8
E9
- Cylinder Sensor-9 failure.
A9
- Maximum alarm Cylinder Sensor-9
E10
- Cylinder Sensor-10 failure.
A10
- Maximum alarm Cylinder Sensor-10
E11
- Cylinder Sensor-11 failure.
A11
- Maximum alarm Cylinder Sensor-11
E12
- Cylinder Sensor-12 failure.
A12
- Maximum alarm Cylinder Sensor-12
General failures;
NC
- No network communication Solution: - Check the network cable
EE
- Settings are lost. Solution: - Reprogramme the settings.
Solution for sensor failures E0 ... E12:
- Check if the sensor is connected correctly.
- Check the sensor (1000

at 0

C).
- Replace the sensor.
To reset an alarm press the
UP
key.
* Technical details.
Model : ALFA 53-Grasso Thermo-Master
Art. Number : 1298150 (Thermo-Master), 1997150 (Sensor-Module GR12)
Range : 0/+200

C, readout per 1

C
Supply : 24 Vdc
Relays : RY1 Heating SPST 250V/8A(NO), (cos phi=1)
RY2 Fan SPST 250V/8A(NO), (cos phi=1)
RY1 and RY2 have one common (C);
RY3 Alarm
SPDT 250V/8A(C-NO-NC), (cos phi=1)
Control : by pushbuttons on the front.
Front : Polycarbonate IP65
Input : Compressor on contact input (Potential free contact input)
Sensors : 13x Pt1000 temperature sensor (1000

at 0

C) connected on PCB
Network : RS485 network with supply (A,B,V+ and GND) 4-wire shielded cable
to PCB
Dimensions : Controller 90 x 71 x 58mm (hwd)
: PCB 120 x 105mm(hw)
Accuracy : ± 0,5% of the range
- Provided with memory protection during power failure.
- Connection with screw terminals.
- Equipped with self test function and sensor failure detection.