Communication; Versions; Standard Version; Version With Three-Key Operation - Samson 3374 Series Mounting And Operating Instructions

Design and principle of operation
Testing according to DIN EN 14597
The Types 3374 Electric Actuator with fail-
safe action "actuator stem extends" is tested
by the German technical surveillance associ-
ation (TÜV) according to DIN EN 14597 in
combination with various SAMSON valves.
The register number is available on request.

3.2 Communication

Serial interface
The actuator is fitted with an RS-232 serial
interface as standard. This allows communi-
cation with TROVIS-VIEW using SSP proto-
col.
Note
The actuator can also be fitted with an op-
tional RS-485 module (see the 'Installation'
section).
Configuration
The actuator can be configured with the
TROVIS-VIEW software. In this case, the seri-
al interface on the actuator is used to con-
nect the actuator to the computer.
The TROVIS-VIEW software enables the user
to easily configure the positioner as well as
view process parameters online.
3-2
Note
TROVIS-VIEW can be downloaded free of
charge from our website at
u www.samsongroup.com > Service &
Support > Downloads > TROVIS-VIEW.
Further information on TROVIS-VIEW (e.g.
system requirements) is available on our
website and in the Data Sheet u T 6661 as
well as the Operating Instructions
u EB 6661.
Î See the 'Start-up and configuration' sec-
tion.

3.3 Versions

3.3.1

Standard version

The operating controls are located under-
neath the housing cover.
3.3.2 Version with three-key
operation
In the special version of the actuator with
three-key operation, the actuator is not oper-
ated using the rotary pushbutton. Instead,
three keys on the cover are used for opera-
tion.
This actuator version can be operated with-
out having to remove the housing cover.
EB 8331-4 EN