Control and Feedback Systems
Control Top T.VIS® A-15
Equipped with a high-precision path measuring system, the T.VIS® A-15 offers automatic open/close position recognition on any valve from GEA, which can be equipped with a T.VIS® control top.
Features
- IO-Link
- Quick, automatic initialization
- Tamper-proof setting of tolerances
- Reduced energy consumption
- Reduction in operating costs
- Valve status display by LED
- Filter protects solenoid valves
- High-quality pneumatic fittings
- Exchangeable compressed air connection
- Supply and exhaust air throttles can be fitted
- Logic NOT-element
- LEFF® function
- Semi-automatic setup
- Standard protection class IP66
Structure
The T.VIS® A-15 is equipped with a precise path measuring system for detecting its position. The necessary wiring for control and feedback is performed, depending on the requirements, via the M12 plug connections accessible from the outside or through direct wiring and cable glands. The control top can be opened for this.
Operation and configuration of the T.VIS® A-15 takes place either by the two push buttons on the cap or, with the cap removed, via the buttons below. The push buttons are secured electronically against inadvertent or incorrect operation, while in operating mode.
A replaceable filter, in the supply air connection, protects the solenoid valves.
Position detecting
Path measuring system – the valve position is registered by means of a highly modern path measuring system.
Setting
Automatic – following unlocking, simply pressing the two buttons on the cap on the T.VIS® A-15 starts the initialization process which runs fully automatically. There is no need to open the control top for this purpose, resulting in particularly quick, easy and safe commissioning of the control top (on average < 1 minute).
Immediately following the set-up, it is possible to set the open/close position tolerances and signal attenuation in the parameter menu.
Service mode
Activation of the main stroke which may be required in VARIVENT® and ECOVENT® valves with open non-actuated position for valve maintenance is performed using the service mode which can be activated by the buttons. At the same time, all feedbacks are stopped (warning to the system control).
Furthermore, input signals from the control room are not implemented by the T.VIS®, in order to protect the employee.
Technical Data
T.VIS® A-15Please refer to the catalog for more information.| Position detection | Path measuring system | |
| Housing material | PA12/L | |
| Ambient temperature | -20 to +55 °C | |
| Air supply | Pressure range | 2 to 8 bar |
| Standard | acc. to ISO 8573-1:2010 | |
| Solid content | Quality class 6 | |
| Water content | Quality class 4 | |
| Oil content | Quality class 3 | |
| Dimensions of air connections | Metric 6/4 mm, inch 6.35/4.31 mm (¼") | |
| Protection class | IP66 (powerful water jet) | |
| Sound pressure level via exhaust air throttle | Max. 72 dB | |
| Visualization | LED (green, yellow, red) | |
| Certificates | optional: UL/CSA, only for indoor use and only with interface type A, B, D, and I | |
| Certificates | optional: UL 121201 – Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Clas III, Divisions 1 and Hazardous (Classified) Locations | |
| CSA C22.2 No. 213-17 | Nonincendive electrical equipment for use in Class I and II, Division 2 and Class III, Divisions 1 and 2 hazardous | |
Valve and plant automation
Downloads
Related Products
IO-Link for the T.VIS® A-15
IO-Link is the first globally standardized IO technology (IEC 61131-9) to communicate with sensors and actuators.
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Control Top T.VIS® M-20
The control top GEA T.VIS® M-20 offers the entire range of modern control functions required in the majority of application points, plus additional advantages in terms of automated valve commissioning and efficient equipment management.
Control Top T.VIS® P-15 Position Controller
The T.VIS® P-15 is a compact position controller for pneumatic process valves. The position is detected by a position sensor and adjusted by two integrated solenoid valves.
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