22
Electrical installation
Exhaust air port
label: 3
Pilot air port
label: 1
Fig. 18: Pneumatic connection
Caution: (Exhaust air concept):
IncompliancewithdegreeofprotectionIP67,anexhaust
air line must be installed in the dry area.
Keepthe adjacent supply pressure always at least
0.5...1barabovethepressurewhichisrequiredtomove
the actuator to its end position.
9. ELECTRICAL INSTALLATION
Twokindsofconnectionsareusedfortheelectricalbondingofthe
Pneumatic Control Unit:
• Cable bushing
with cable gland M16 x 1.5 and screw-type terminals
• Multi-pole
withcircularplug-inconnectorM12x1,8-pole.
9.1. Safety instructions
DANGER!
Risk of electric shock.
▶ Beforereachingintothedevice,switchothepowersupply
andsecuretopreventreactivation.
▶ Observeapplicableaccidentpreventionandsafetyregulations
forelectricalequipment.
WARNING!
Risk of injury from improper installation.
▶ Installationmaybecarriedoutbyauthorizedtechniciansonly
and with the appropriate tools.
▶ InthecaseofdeviceswithULapprovalfortheelectricalinstal-
lationuseonlycableswhichareapprovedforatemperature
ofatleast70°C.