Baumuller BM5-O-SAF-002, Operation Manual, Page: 76 / 182

Safely Limited Position (SLP)
Operation Manual Safety Module for b maXX 5000 BM5-O-SAF-002/3
Document no.: 5.11016.03 Baumüller Nürnberg GmbH
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of 180
10.10
The absolute value of the homing position, which is stored in the parameterization, is
accepted as an absolute position during the sensing of the position switch by the input of
the Safety Module. The position limits are monitored with the encoder increments on two
channels. It must be considered, that a maximum speed and, if necessary, the encoder’s
rotational direction must be defined for the sensing of the absolute position.
During homing the specified absolute positioning value in P207.019 for axis 1 (or
P207.022 for axis 2) is taken over as homing position. This is the positioning value 0, as
long as nothing else was defined by the user.
The benefit is that the user can approach the home position anywhere on the route and
can take over the default value.
Furthermore, the user can carry out a fine adjustment of the accessed home position
because it can happen that the zero point is moved by a few increments (due to the
different installations of the home switch regarding the mechanics). By the setting of a low
offset this deviation can be compensated directly.
NOTICE!
m
The principal drive mode must be within the parameterized limits at request of the
safety function SLP.
m
System parameters as e.g. the mechanic hysteresis of the position switch or the
mechanic traction at sensing of all safe positions must be considered.
CAUTION!
The specification of the position limits at SLP takes place absolutely. This is in
contrast to the safety function SOS with its relative parameter limits to the present
standstill position.
Therefore the safe reference position after a switch-off of the drive must be
determined again!