MARMON ANGELO PO COMBISTAR FX, Technical Manual

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Copyright by Servizio Clienti ANGELO PO Spa
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CPU board (1a) controls the display panel (1b), keyboard (1c) and the LED board (1d).
The connections with these boards are made with flat cables. Addition, the CPU board
(1a) communicates with the power board (2) through a network cable (RJ45) and with the
external USB port (5).
The power board (2) receives all the signals from the oven probes (PT1000 temperature
sensors, door micro switch, core food probe, etc.) and controls all organs of the oven
through the appropriate relays. It communicates with the CPU board (1a), with the inverter
(4) and the combustion control board (3) (only for gas) via RJ45 network cables.
If there is no communication between the power board (2) and the CPU board (1a) or the
board or the inverter or the combustion control board a warning alarm appears E13
(communication error alarms, see table).
The management programme of the oven consists of three parts:
Firmware (FW)
– it controls the operation of the oven (inputs and outputs) – it is in the
power board (2)
Software (SW) - Contains all the user interface, programs, pictures, etc...
– it is in the CPU
Operating System (OS)
– it is in the CPU
Versions of OS, SW and FW are shown in the upper part of the Service menu.