Burkert Type 8712 - Manual (Page 32)

32
Operationandfunction
Type 8006, 8702
binary input ports
If the binary inputs are activated, different operations can be run on the
MFC and the latter can be switched to a specific operating mode. This
is achieved by connecting the binary input to DGND for at least 0.5 s.
Activation
binary input 1
Activation
binary input 2
input Default assignment
Binary input 1 Autotune actuation
Binary input 2 Not used
Binary input 3 Not used
Tab. 1 : Default assignment of binary input signals.
indicator light status possible cause
Error LED (red) on Minor fault, for example the
Autotune function has failed.
Error LED (red) flashes Major fault, sensor damaged,
internal power supply voltage
incorrect or operating pressure
too high.
8.2.2. inputs
Analogue input/output
The analogue input (MFC only) allows the set-point value, i.e. the
required flow-rate value in the line, to be received.
The analogue output enables the measured flow-rate value to be
supplied to the device to which it is connected.
bus connection (field bus version only)
The set-point value received and the measured value are sent digitally
via the field bus. It is possible to choose between PROFIBUS DP,
DeviceNet and CANopen (see also the additional operating instructions
for field bus devices).
English