
APV_CU4 AS-i_UK-5_072018.indd
UK
Control Unit
CU4 AS-interface
Instruction manual: UK - rev. 5
APV
31
8. CU Assembly and Startup
8.2.1 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 for valve actuator:
Connect the pneumatic air connection
Y1
with the valve actuator.
- For the CU41N
(with logic NOT element)
, the pneumatic air
connection
N
must be connected with the spring side of the
actuator.
See to the spring side of the actuator during the assembly of the
pressure-reducing valve.
Exhaust air:
As a standard, the exhaust air connection is 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 to a professional execution and installation of the AS-interface
network.
Observe the Safety Instructions specified in chapter 2.
!