Dräger Babylog 8000SC, Technical & Service Manual, Page: 38 / 155

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Dräger Medical AG & Co. KGaA 6173.3
Function description Babylog 8000
9.4 Pneumatics Analog PCB
The Pneumatics Analog PCB controls and monitors the operate voltage and the withstand voltage to the
valves. The Pneumatics Analog PCB is installed on the Pneumatics Control PCB.
Fig. 14: Block diagram of the Pneumatics Analog PCB
Fig. 15: Block diagram of the Pneumatics Analog PCB
Current control
Current of
the valve
Amplifier control
State of valve
+ Ref. Valve voltage
+ Ref.
Stop clock
Switch
regulator