Fluid Installation; Safety Instructions - bürkert 8691 Schnellstart

Fluid installation
control function a (cfa)
Process valve closed in rest position (by spring force)
Pilot air outlet
Upper pilot air port
Lower pilot air port
control function B (cfB)
Process valve open in rest position (by spring force)
Pilot air outlet
Upper pilot air port
Lower pilot air port
control function i (cfi)
Process valve in rest position
Pilot air outlet
Upper pilot air port
Lower pilot air port
Tab. 1: Pneumatic connection to actuator
Type 8691
2 2 2
2 1 2
or
2 2 2
2 1 2
or
closed open
2 2 2
2 1 2
8. fluiD inSTallaTion
8.1. Safety instructions
2
1
Danger!
risk of injury from high pressure!
• Before dismounting pneumatic lines and valves, turn off the
pressure and vent the lines.
risk of electric shock!
• Before reaching into the device or the equipment, switch off the
power supply and secure to prevent reactivation!
• Observe applicable accident prevention and safety regulations
2
1
for electrical equipment!
Warning!
risk of injury from improper installation!
• Installation may be carried out by authorized technicians only
and with the appropriate tools!
risk of injury from unintentional activation of the system and
an uncontrolled restart!
2
• Secure system from unintentional activation.
1
• Following installation, ensure a controlled restart.
english
15