La28 - Linak Inline LA20 User Manual

6. LA28 ( MEDLINE CARELINE
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Built-in end-stop circuit (CS28/CS28S)
In the LA28 actuator, with built-in CS28 A-, B- or C-PCB, the actuator is switched off at the end position or when overloaded .
LA28 actuator with:
• The CS28 A is standard IPX1 and is connected to a HB41 hand control with a telephone plug .
• The CS28 B is standard IPX5 and is connected to a HB41 hand control with a DIN plug . CS32 B is also available in IPX6 .
• The CS28 C is standard IPX1 and is connected to an external contact or control . See figure 6.7.
Mechanical spline:
The splines function so that the actuator can only push, not pull . During pull in the actuator, the inner tube is lifted off the thread bush, and the actuator
can therefore never pull a load, only push .
Functional test of mechanical splines:
When the piston rod is at the innermost position, it must be possible to pull it out manually to its full travel length and to press it in again without much
resistance and without using the motor . If this is not possible, contact your nearest LINAK dealer .
Warning
Do only use the actuator within specified working limits .
Usage
• Duty cycle: Max . 10 % or max . 2 min . continuous use followed by 18 min . not in use .
• Ambient temperatures: + 5 °C to + 40 °C
• Compatibility: Compatible with LINAK control boxes . Please contact LINAK .
• Approvals: IEC 60601-1, ANSI/AAMI ES60601-1 and CAN/CSA-22 .2 No 60601-1
Recommendations
• LINAK control boxes are designed so that they will short-circuit the motor terminals of the actuator(s), when the actuator(s) are not running .
This solution gives the actuator(s) a higher self-locking ability . If the actuator(s) are not connected to a LINAK control box, the terminals of the motor
must be short-circuited to enable self-locking of the actuator .
• The maximum load in pull is 2000 N .
• Min . stroke length for the LA28 with splines is 80 mm
• The current supply to LINAK actuators must be cut off in case of overload and when the actuators reach end position .
• Ambient operating temperature is 22 °C .
• LA28 Compact cannot be used in pull applications, unless fitted with an aluminium back fixture .
Further information:
Noise level:
• LA28: dB(A) 45; measuring method DS/EN ISO 3743-1, actuator not loaded
• LA28S: dB(A) 54; measuring method DS/EN ISO 3743-1, actuator not loaded
Material:
• The piston rod eyes are "crimped" in place and cannot be unscrewed .
HOMELINE )
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"Crimped" piston rod eye
The LA28 is primarily a system actuator . The actuator is very quiet and powerful designed for
use in the furniture, rehabilitation, and hospital bed line of businesses .
The actuator is also ideal for use in agricultural machinery and for a wide range of
industrial applications .
Reed-switch:
Reed-switch gives a number of pulses for each rotation of the motor . These pulses are
used to calculate the piston rod's position as well as to control several actuators running
in parallel .
Your nearest LINAK dealer can inform the number of pulses per stroke length .
Regarding Reed-switch connection, Figure 6.8 (LA28R)
Piston rod without eye (are not tested)
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Protective
cap