R
1
2
3
4
5
6
7
8
9
10
11
12
Linear
Sensor
AS-i Bus +
AS-i Bus -
Z +
Z -
PELV E +
PELV E-
5 VDC
Sensor 3
GND
5 VDC
Sensor 4
GND
AS-i Bus +
AS-i Bus -
LED 9
LED 8
LED 7
LED 1
LED 3/4
LED 5
LED 6
LED 2
Y1
Y2
Y3
P
Cu4plus
AS-interface/
Spec.
V3.0
T
each
Service
Port
self-lock
connector
linear sensor
pressure
reducing valve
(locked to 5 bar)
APV_CU4plus_AS-interface_UK-3_062019.indd
UK
Control Unit
CU4plus AS-interface
Instruction Manual UK-3
APV
17
4. Mechanics and Pneumatics
4.4.
Functional description - block diagrams
4.4.2. CU41Nplus AS-interface
(internal position measuring system)
Valve type: SD4
solenoid valve
throttle valves
P / air supply
A / exhaust
NOT element
The illustration shows a valve in standard design NC (normally closed).
The valve in the design NO (normally open) can also be
used.
The respective valve limit position is detected via the teach
function and saved in the control unit.
