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Control Unit CU4 Direct Connect UK-3 / 20.04.2011
Control Unit
CU4 Direct Connect
Instruction Manual: UK-3
UK
APV
8.
CU Assembly and Start-up
8.3.1. Pneumatic connection
Supply air:
CAUTION
Shut off the compressed air supply before connecting
the air hose!
See that the air hose is professionally cut to length. Use a hose
cutter for this purpose.
Pneumatic air to valve actuator:
Connect pneumatic air connection
Y1
with the valve
actuator. Main actuator
Connect pneumatic air connection
Y2
with the valve
actuator. (seat lifting - upper valve seat)
Connect pneumatic air connection
Y3
with the valve
actuator. (seat lifting – lower valve seat)
Exhaust air:
As a standard, the exhaust air connections
A1
and
A2
are
equipped with a silencer. If required, the silencer can be removed
and the exhaust air can be hosed separately when it must be led
off to the exterior, for example.
8.2.2. Electric connection
CAUTION
Electric connections shall only be carried out by
qualified personnel.
See that the operating voltage is correct!
After determining the connecting variant according to
chapter 6.6.
Wiring Examples, select the corresponding cable.
Guide the cable through the cable gland and connect it according
to the Wiring Diagram. Preferably use wire terminations!
Tighten the cable gland in order to ensure the corresponding
protective class.
!
