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“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
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