Burkert Type 8691 - Manual (Page 38)

38
AS-Interfaceinstallation
10.5 Teach function (calibrating the end position)
The teach function can be used to automatically determine and read in the end positions of the valve.
For the bus variant AS-Interface, the teach function can also be started via the bus protocol.
Danger!
risk of electric shock.
▶ Before working on equipment or device, switch off the power supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations for electrical equipment.
necessary requirements:
Before you can actuate the teach function, you must
• mount the control head on the actuator,
• connect the supply voltage,
• connect the compressed-air supply and
• pilot valve OFF (D0 = 0).
Procedure:
Body casing
Connection housing
Actuator
Transparent cap
Figure 32: Open control head
noTe!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the
connection housing.
→
Open the control head: turning the transparent cap anti-clockwise.
→
The key in recess for actuating the teach function keep pressed for approximately 5 seconds.
→
Only for control heads without pilot valve:
When yellow pilot valve LED is lit, move actuator to upper end position.
When yellow pilot valve LED goes out again, move actuator to lower end position.
english
Type 8691