Interfaces Of The Positioner - bürkert TopControl Basic 8696 Bedienungsanleitung

5.7 interfaces of the positioner
Input for position
set-point value
4 – 20 mA
0 – 20 mA
Binary input
24 V DC
Communications
interface
default setting
4)
Figure 7: Interfaces
The positioner Type 8696 is a 3-wire device, i.e. the power (24 V DC) is supplied separately from the set-
point value signal.
• Input for position set-point value (4 – 20 mA corresponds to 0 – 100%)
(depending on the position of DIP switch 1)
• Binary input
If a voltage > 10 V is applied, SAFE POSITION is activated, i.e. the valve is moved to the safety position
(factory setting, can be changed with communications software)
• Analog position feedback (optional)
The position of the valve can be transmitted via an analog 4 – 20 mA output to the PLC
(4 – 20 mA corresponds to 0 – 100%)
20
4)
english
Analog
position feedback
(optional)
Positioner
Operation
Type 8696
Systemdescription