
1
red
red
brown
+ AS-i-Bus
- AS-i-Bus
5 VDC
5 VDC
Sensor 1
Sensor 2
GND
GND
Normal
Feedback
Reverse
brown
white
white
black
black
black
blue
blue
black
6
10
4
3
2
5
7
11
8
12
CU4
AS-interface
CU4 AS-interface
Spec. V3.01
Extended
adress mode
max. 62 slaves
NTERFACE
1
3
2
NI5-K11K-AN5X/5
NI5-K11K-AN5X/5
hall
sensor
hall
sensor
1
red
red
+ AS-i-Bus
- AS-i-Bus
5 VDC
5 VDC
Sensor 1
Sensor 2
GND
GND
Normal
Feedback
Reverse
white
white
black
black
6
10
4
3
2
5
7
11
8
12
CU4
AS-interface
CU4 AS-interface
Spec. V3.01
Extended
adress mode
max. 62 slaves
NTERFACE
1
3
2
hall
sensor
hall
sensor
S3
S2
Electronic module
with sensors for all
SPX FLOW APV valves
Electronic module
with sensors for
SPX FLOW APV / WCB D4 valves
APV_CU4 AS-i_UK-5_072018.indd
UK
Control Unit
CU4 AS-interface
Instruction manual: UK - rev. 5
APV
20
6. Electronic module
6.1.
Function / Block diagram
The Control Unit CU4 AS-interface is a slave for the fieldbus system
AS-interface.
It complies with the specification V3.0. The profile is S-7.A.*.E (3
outputs and 2 inputs).
By means of a connecting terminal, the inputs can either be
connected with internal APV Hall effect sensors or with external
inductive proximity switches (compare 6.5.).
The AS-interface CU4 is designed for the extended address range.
With these devices in the extended address range up to 62 slaves
(formerly known as 2.1) can be connected with one AS-interface
cable.
Attention:
Consider cumulative power input and simultaneity factor!
For reasons of compatibility with older versions, a version with the
profile S-7.F.F.F (formerly known as 2.0) is alternatively available.
All operating ranges within the electronic module such as the control
of the solenoid valves, position feedback and LED indication are
separated galvanically and can, thus, be operated with different
voltages. Control of the solenoid valves is effected in energy-saving
manner via pwm-signals.
feedback bridge