Siemens SIMODRIVE POSMO A User Manual page 196

05.03 02.99
How do you move If an axis is at a hardware limit switch, then it can be moved away as
away from a follows:
hardware limit
1. Acknowledge the fault
switch?
2. Return the axis to the valid traversing range
1. Withdraw the controller enable (control signal ON/OFF1)
2. Set the input terminal (function number 28/29) to 0
Note
If the hardware limit switch was passed, then it is only possible to
continue to traverse in the original direction, if after acknowledging the
fault, the axis is traversed in the opposite direction and again passes
over the hardware limit switch.
Software The software limit switch start (P6) and software limit switch end (P7)
limit switch can be correspondingly set to limit the operating range or to protect the
(SW limit switch) machine.
P6, P7
Notice
The software limit switches only become active if the following
conditions exist:
S
S
Only then is it certain that the axis will be immediately stopped if it
attempts to move out of the permissible range.
Note
The SW limit switch monitoring is dependent on the axis type as
follows:
For a linear axis or rotary axis with modulo correction, the following is
valid:
––> the software limit switches can be activated via P6<P7 and
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SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
In the jog mode or via velocity, move away in a direction opposite to
the approach direction
or
P6 < P7
pos mode: The axis is referenced ("reference point set" output
signal)
set via P6 and P7.
5 Description of the Functions
5.5 SIMODRIVE POSMO A functions
5
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