Siemens SIMATIC S5 Manual page 282

Test whether the two limit switches which send signals to the IP247 actually respond.
In a forward direction, the end limit switch must respond.
In the reverse direction, the start limit switch must respond.
If necessary, change over the limit switches at
At maximum speed, test whether there is sufficient braking distance after the hardware limit
switches which send signals to the IP247.
Approach the limit switches at maximum speed. After the IP247 switches off automatically,
the limit switch connected to the power unit must not be tripped, otherwise a loss of
pulses occurs and the reference point is incorrect.
Make a reference point approach or set a reference point using the software
Test the position and function of the sofhvare limit switches when traversing at maximum
switch. The axis must not continue to the hardware limit switch, if it does, you must
change the machine data.
Once you have tested these basic functions, you can try out the other modes.
2 JOG 2
3- (no significance)
4 Axis off (an active mode is terminated)
5 Reference point approachdset
6 Incremental absolute
7 Incremental relative
8 Automatic (later)
connector
Planning
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