ENG
| Instruction Manual
LK 950 P Valve Actuator
TECHNICAL DATA
FUNCTIONAL DESCRIPTION
LK 950 is a series of compact actuators designed to motorize rotary
mixing valves. The actuator is controlled by means of a modulating
signal 2 (0)-10 VDC. LK 950 fits most rotary valves. Alternative moun-
ting kits can be supplied as option.
OPERATION
The actuator can be mounted in any position except below the
valve. Thanks to its small size and compact form the LK 950 fits
most installations.
The actuator is mounted directly onto the valve spindle with a screw. An
anti-rotation bolt is screwed
onto the valve. The angle of rotation is limited to 90°. When the actuator
reaches either end position the voltage supply is interrupted by limit
switches. The actuator can be put into manual mode by turning the but-
ton on the housing cover which will disengage the gears. The actuator
can now be put in any position by turning the handle on the front and
this position is indicated by means of a reversible scale.
MOUNTING INSTRUCTION
1. Turn the spindle of the valve A counter clockwise to the end posi-
tion (OPEN or CLOSED). Remove the handle supplied with the valve
body from the valve spindle.
2. Screw the anti-rotation stop B in a convenient hole on the valve (if
necessary remove an existing screw).
3. Slide the linkage C over the valve spindle.
4. Place the actuator D onto the linkage C and if necessary rotate it
slightly clockwise until the antirotation stop B engages in the slot of
the actuator (the actuator is supplied in the anti-clockwise position).
5. Turn the scale E into the position relevant to the
re-
Power supply
24 VDC/VAC 50/60 Hz
Control signal/Position signal
2 (0) - 10 VDC, max 0,5 mA
Dimensioning
3 VA
Power consumption
1.5 W
Connection
Terminal block
Direction of operation
Selectable
Manual override
Disengagement of gears
Torque
5 Nm
Angle of rotation
90°, electrically limited
Running time*
35 / 70 s
Sound level
Max. 35 dB(A)
Position indication
Reversible scale
Mounting position
Selectable except below the valve
Accessories*
Alternative mounting kits
Protection type
IP 40
Protection class
III (SELV)
Ambient temperature
0 ... 50 °C
Storage temperature
-10 °C ... 80 °C
Safety
CE (see Declaration of Conformity)
* = Depending on model
0 - 10 VDC
*) Fabriksinställning
Brytare 2
2 - 10 VDC *)
Brytare 1
Brytare 2 Arbetsområde
Brytare 1
Gångriktning
Moturs *)
Medurs
Direction of rotation
Switch 1
Switch 2
Counter-clockwise *)
Clockwise
Operating range
Factory setting
Switch 1
Switch 2
Switch 1 Direction of rotation
Counterclockwise *)
Clockwise
Switch 2 Operating range
2-10 VDC *)
0-10 VDC
*) Factory setting
0 - 10 VDC
*) Fabriksinställning
Brytare 2
2 - 10 VDC *)
Brytare 1
Brytare 2 Arbetsområde
Brytare 1
Gångriktning
Moturs *)
Medurs
0 - 10 VDC
*) Fabriksinställning
Brytare 2
2 - 10 VDC *)
Brytare 1
Brytare 2
Arbetsområde
Brytare 1
Gångriktning
Moturs *)
Medurs
0 - 10 VDC
*) Fabriksinställning
Brytare 2
2 - 10 VDC *)
Brytare 1
Brytare 2 Arbetsområde
Brytare 1
Gångriktning
Moturs *)
Medurs
0 - 10 VDC
*) Fabriksinställning
Brytare 2
2 - 10 VDC *)
Brytare 1
Brytare 2
Arbetsområde
Brytare 1
Gångriktning
Moturs *)
Medurs
U
Styrsignal från regulator
5
24 VAC
GND
3
]
2-10 VDC
LK 950 proportionell
Y
24 VDC
Utsignal för lägesindikering
+
-
1 2
~
0-10 VDC
Control signal
Position feedback
GND
LK 950 Proportional
All applicable legal or institutional
installation regulations must be
complied with.
WIRING DIAGRAM
D
E
F
A
B
C
G
quested function (OPEN/ CLOSED) and place it onto the actuator.
6. Place the handle F onto the actuator ensuring that
the arrow points to the left end position of the scale.Tighten the
whole unit by means of the screw G.
7. Using a screwdriver (No. 3) turn the disengaging button on the
housing cover from «A» to «Hand Symbol» position and rotate the
valve by means of the handle F from one end position to the other.
It is important that the actuator can be moved from one end stop
to the other (90°).
8. Connect the actuator to the power supply.
9. Turn the disengaging button back to the«A» position and the
actuator will turn in the required position.
1
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