APV_CU4plus_AS-interface_UK-3_062019.indd
UK
Control Unit
CU4plus AS-interface
Instruction Manual UK-3
APV
40
7. Valve Position Indication
7.3.1. To be observed before teach-in:
- Corresponding switching cam is mounted to the valve guide rod.
Note! Caution!
The switching cam is not identical with the standard CU switching
cam!
- CU4plus AS-i control unit is not duly installed on the valve. ist
ordnungsgemäß auf dem Ventil installiert.
- Valve is duly installed in the process.
-
Valve is not manually controlled or controlled by PLC.
- Control air is connected (requirements, see Technical Data, chapter
4.5.).
- Nominal valve stroke is not restricted, e.g. through chunky products
in the valve.
- Selected switching logic complies with the installed process valve
(adjustment is realized via CU4plus Toolbox software, delivery
status is switching logic for DA3+ SLD).
During the Teach-In function, the valve is controlled and moves
independently into all operating positions.
As a precaution, the Teach-In function is to be repeated after
any valve service or maintenance!
If these instructions are not observed, process failures,
product loss or personal injury may occur!
7.4.
Use of external sensors
For double seat valves with active seat lift detection (SLD) 2
additional proximity switches are required which are mounted in the
actuator area of the DA3+ valve and connected at the electronic
module of the CU4plus AS-i.
!
!
