Burkert 8691 - Page 36

36
Start-up
→ Hold down the button to start the teach function for at least 10 s.
After 5 s, the red status LED will start blinking. Keep the button pressed down. After a further 5 s, the
red LED blinks very quickly. Only then release the button.
Status LED red blinks once every second: The manual teach function is active.
→ Check whether the pneumatic actuator is in the deaerated, unactuated end position.
→ Thisendpositionisconrmedbybrieypressingthebutton.
Yellow pilot valve LED is lit.
→ Move the pneumatic actuator into the aerated, switched end position.
→Thisendpositionisconrmedbybrieypressingthebutton.
Yellow pilot valve LED is not lit.
→ Air bleed the pneumatic actuator: move to the unactuated end position.
Yellow pilot valve LED is lit.
To determine the opening times and closing times, aerate and deaerate the pneumatic actuator:
Measurement of opening time (Opening_Time):
→ Move the pneumatic actuator into the aerated, switched end position.
Yellow status LED is not lit.
Measurement of closing time (Closing_Time):
→ Air bleed the pneumatic actuator: move to the unactuated end position.
When the red status LED stops lighting, the teach function is terminated.
Theendpositionsofthevalvehavebeenidentiedandsaved.
Note: If the red LED is lit, the manual teach function is defective and must be repeated.
→ Check that the seal (body casing) is in the correct position.
NOTE
Damageormalfunctionduetoingressofdirtormoisture.
To observe the degree of protection IP65 or IP67:
▶ Screw in body casing to the stop.
→ Close the device (wrench*: 674077).
* The wrench (674077) is available from your Bürkert sales oce.
english
Type 8691, Rev. 2