General Terms; Purpose Of Use; Design Of Cu4Plus Direct Connect - SPX FLOW APV CU4 plus Instruction Manual

SPX FLOW
SPX FLOW_CU4.plus. 24V Direct Connect_IECEx_Zone 2_GB-1_012024_for D4. Valves.indd
fig. 3.2.
6.
4.
5.
fig. 3.2.1
cable guide
Control Unit
CU4plus Direct Connect
Instruction Manual GB-0
3. General Terms
3.1. Purpose of use
The control unit CU4plus Direct Connect has been developed for
the control of process valves in food processing industry as well as
related industries.
The CU4plus Direct Connect control unit operates as interface
between process control and process valve and controls the electric
and pneumatic signals.
The pneumatic control of valves is undertaken via the solenoid
valves. The control unit controls the valve positions, open and
3.
closed, via sensors. The electronic module undertakes the task
to process the switching signal from the control and to control the
2.
corresponding solenoid valves. The electronic module also provides
for potential-free contacts. The corresponding light signals in the
control unit provide for an external indication of the valve positions.
3.2. Design of CU4plus Direct Connect (fig. 3.2.)
The CU4plus Direct Connect control unit consist of the following
components:
1. The Control Unit base with integrated air channels and electric
and pneumatic connections as well as viewing windows with
1.
type label.
2. 1 or 3 solenoid valves for the control of the valve actuators and
- 1 solenoid valve with 1 logic NOT element for the control of the
valve actuators.
3. Sensor module with integrated position measuring system for the
detection of the valve position.
4. Electronic module for the electric supply, for the Direct Connect
3.
communication with the PLC, evaluation of feedback signals and
control of solenoid valves as well as valve position indication
through LED.
5. Clamp ring to fasten the CU4plus on the adapter.
6. Cover with LED optics.
The cable/s by means of which the solenoid valves are connected
with the electronic module must be guided through the cable guide
2.
at the rear side of the electronic module. (fig. 3.2.1).
for the seat lifting of double seat valves.
GB
13