Samson TROVIS 5724-3, Монтаж и эксплуатация

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EB 5724 EN 3-1
Design and principle of operation
3 Design and principle of oper-
ation
The TROVIS 5724-3 and TROVIS 5725-3
Electric Actuators with Process Controller
consist of a linear actuator with an integrat-
ed digital controller.
They are especially designed for DHW heat-
ing in instantaneous heating systems for
small to medium-sized buildings and for
fixed set point control circuits in mechanical
engineering applications. They are particu-
larly suitable for mounting to SAMSON
Types 3213, 3214, 3260, 3222 and 3226
Valves.
A special version of Type 3222 (DN 15) and
Type 3222 N 8DN 15) with a special plug
design is available for small installations
(apartment or house). As a result, even small
tapping amounts can be controlled.
Design
Î
See Fig. 3-1.
The electric actuator with process controller
contains a reversible synchronous motor and
a maintenance-free gear. The synchronous
motor is switched off by torque-dependent
switches in the end positions or in case of
overload.
The output signal of the integrated digital
controller acts over the positioner on the syn-
chronous motor of the actuator. The force of
the motor is transmitted to the actuator stem
(3) via gear and crank disk. When the actu-
1 Electric actuator with process
controller
1.1 Front cover
1.2 Cable entry
2 Handwheel (TROVIS 5724-3 only)
3 Actuator stem
4 Coupling nut
8 Spring assembly (TROVIS 5725-3
only)
9 Travel indication scale
11 Set point potentiometer
12 Serial interface (RJ12 port)
Fig. 3-1: TROVIS 5724-3 Electric Actuator with Process Controller (force-locking attachment)