1
2
3
4
5
6
7
8
10
11
12
5 VDC
Sensor 1
GND
5 VDC
Sensor 2
GND
Normal
Feedback
Reverse
AS-i-Bus +
AS-i-Bus -
Self-lock
connector
Pressure
reducing valve
(lockedto5bar)
4. MechanicsandPneumatics
4.4.2 CU41N–AS-interface
Functionaldescription-blockdiagram
The picture shows a standard NC (spring to
closed)valve.
IfNO(springtoopen)valveisused,thesensor
wiring can be different.
Sensor 1
(“Valveclosed”)
Sensor 2
(“Valveopen”)
Solenoid valve
Throttle valves
P / Air supply
A / Exhaust
NOT element
APV_CU4 AS-i_UK-5_072018.indd
UK
Control Unit
CU4 AS-interface
Instruction manual: UK - rev. 5
APV
13