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HMR Series Positioners
7.5
Position Detection with Magnetic Switches
Potential damage to equipment!
Missing or incorrect signals from the end position switches in the controller
Essentially, clamp and set up end switches before commissioning
7.5.1
Definition
End position switch
The use of end position switches is highly recommended for operating electric linear drives to prevent mechanical damage in the end positions.
End position switches must be implemented in the NC (normally closed) function so that any cable breaks can be detected by the controller.
Homing switch
In addition to the end position switches, a homing switch can be used to assign a repeatable zero point to the linear system. Homing switches
are normally implemented in the NO (normally open) function. In this process, the homing switch must be between the end position switches.
Switch types
The magnetic switches described in the following can be used as switches. The switch function is triggered by the magnetic package mounted
under the carriage. The user can use mechanical switches, proximity sensors etc. in the same manner.
Setting up switch points
The switch point for the end position switches must be selected on both sides of the linear drive so as to ensure braking of the payload up to a
standstill (depending on the motor system used) within the safety distance and at any time during operation. Depending on the application, the
homing switch can be set up anywhere between the end position switches. If the switch points are not indicated when ordering, the user must carry
out the alignment as well as the connection of the magnetic switches.
Example: Product code with digit in bold which displays the position of the safety distance
HMRxxxx-xxxx-xxxx2xxxx => 2 = 20 mm safety distance.
ATTENTION
Essentially, the user is responsible for checking each linear drive from proper setup and
the function of the magnetic switches
NOTE
23
SS = Safety Stroke
ES = Effective Stroke
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