oventrop Aktor M ST L, Operating Instructions Manual

Page: 7 / 14

“Aktor M ST L 24V” Technical description
7
101271784-V02.01.2020
3. Technical description
3.1 Construction
M30x1.5
A
51
75
0
6
86.5
64
Illust. 1: Side view
48.5
Illust. 2: Front view
3.2 Functional description
3.2.1 Normal operation
The actuator opens or closes the valve depending on
the applied control voltage.
The actuator can be adapted to the specific parame -
ters of the valve used with the help of DIP switches.
3.2.2 Emergency end position
The actuator features an energy store.
If the operating voltage fails, the stem of the actuator
will move to the emergency end position (see section
6.3 on page 10).
3.3 Technical data
Operating voltage
24 V AC ±10 %; 50/60 Hz;
24 V DC ±10 %
Power consump-
tion
Dimensioning: 6.8 VA (24 V
AC);
3.3 W (24 V DC)
nominal: 5.3 VA (24 V AC);
2.7 W (24 V DC)
Start up load For short periods max. 12 A
Drive Steady control 0 - 10 V DC;
< 0.5 mA
Connection Fixed pre-assembled cable
1.5 m; 5 x 0.5 mm
2
Display LED display for operating volt-
age and status
Motor deactiva-
tion
Drive stem:
- extending = load-depend-
ent
- retracting = travel-depend-
ent
Piston stroke Max. 4 mm
Floating time
22 s/mm
Emergency float -
ing time
about 5 s/mm
Operating power Nominal 150 N
Position indicator Stroke scale
Position feedback
2 - 10 V; DC, 5 mA
for 0 -100 % travel
Emergency con-
trol function
Emergency end position ad-
justable
Valve anti-block-
ing function
Active
Permissible fluid
temperature in the
valve
0 °C - 120 °C
Ambient temper-
ature
0 °C - 50 °C
Ambient humidity
0 - 85% r.h., not condensing
Protection class
IP54
Protective system Degree of protection
Installation posi-
tion
360°
Maintenance
maintenance-free
Weight 250 g