Teach Function (Calibrating The End Position) - bürkert 8691 Bedienungsanleitung

11.12. 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 DeviceNet, the teach function can also be started via the bus protocol
(see "11.12.1. Starting the teach function").
Danger!
risk of electric shock!
• Before reaching into the system, 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
• connect to the Master.
Procedure:
→
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.
Figure 38: Teach function
50
english
Pilot valve LED (yellow)
Status LED:
flashes yellow when teach function is running
Key in recess for actuating the teach function (keep
pressed for approximately 5 seconds
Chronological description of the teach function:
• the bottom end position is read in internally
• the pilot valve switches
• the actuator moves automatically to the top end position
• the top end position is read in internally
• the pilot valve is turned off
• the actuator moves back to the bottom end position
Type 8691
DeviceNet