If the linear actuator is used in the application as a pressure actu-
ator (extending application), the electrical pinch protection only
becomes effective if the upstroke is blocked by an object or a body
part.
!
N o t e !
Additional information about the electrical pinch protec-
tion († Chapter “Installation and First Start of Operation”).
4.8.4 Life span display
M A X1 and MAX3
The life span display monitors the time of operation of the linear
actuator. As soon as the calculated total run time has been reached
for the direct current motor (in relation to the life span of the linear
actuator), a visual or acoustic signal will be triggered depending on
the respective version.
4.8.5 Mechanical pinch protection
The mechanical pinch protection uncouples the ball screw nut from
the ball screw spindle in the event of a jam against the effective
direction of the linear actuator.
If a linear actuator is utilized as a pressure engine (extending
application) in the application, the mechanical pinch protection only
works during the retraction of the device.
!
Note!
It is recommended that this option is not used in connec-
tion with an impulse transmitter.
4.8.6 Master slave actuator function
MAX6
The master-slave actuator function can operate a maximum of one
additional actuator (e. g. MAX1, MAX3 or Telemag) directly via
MAX6.
The second actuator (slave actuator) is controlled via additional
buttons on the SKF operating element. A parallel operation is not
possible.
This function is only available in conjunction with an electrical
control unit.
Note the total power in the master-slave actuator function:
≤ 6 A († Chapter 6.5.4).
4.8.7 Impulse transmitter
MAX1 and MAX3
The impulse transmitter gives impulses which are further processed
by the external control.
This provides the opportunity that the linear operation can be
extended or retracted into one of more defined positions.
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