Alfa Laval 8693 Anleitung Seite 24

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!
procedure:
1.
Open body and take off electronics module:
→ →
→→Disconnect supply voltage at the positioner / process con-
troller and proximity switch connector.
→
Unscrew body casing (with transparent cap).
→
Remove electronics module.
2.
Setting the proximity switches (depending on the control
function (CF)):
Bottom end position for control function a (cfa) or
top end position for control function B (cfB)
→
Switch on supply voltage at the proximity switch connector.
→
Using a screwdriver, set proximity switch at the setting screw to
end position.
→ →
→→Switch off supply voltage at the proximity switch connector.
24
english
Type 8692, 8693
Electrical installation
Bottom end position for control function i (cfi)
→
Connect the pilot air.
Warning!
Valve moves after electrical voltage has been connected!
After connecting the electrical voltage, the actuator moves to the
set end position!
• Never perform setting of the proximity switch while a process is
running!
→
Switch on supply voltage at the positioner / process controller
and proximity switch connector.
→
Move actuator to the bottom end position.
→
Using a screwdriver, set proximity switch at the setting screw to
end position.
→ →
→→Switch off the pilot air.
→ →
→→Disconnect supply voltage at the positioner / process con-
troller and proximity switch connector.
top end position for control function a and i (cfa and cfi) or
bottom end position for control function B (cfB)
→
Set jumper (see "Fig. 13: Setting the proximity switches").
→
Connect the pilot air.