Retraction - Siemens SINUMERIK MC Commissioning Manual

Safety functions integrated in the drive
4.13 SLP
Note
Restrictions for PROFIsafe telegram 30
The use of PROFIsafe telegram 30 (with 16-bit words S_STW1 and S_ZSW1) has the following
restrictions:
● Only position range 1 is available.
● A switchover to position range 2 is not possible.
● The status feedback signals "safely referenced", "active position range", "upper SLP limit
maintained" and "lower SLP limit maintained" are not available.
Note
Response to bus failure
If p9580 ≠ 0 and SLP is active, in the event of communication failure the parameterized ESR
reaction is only realized if, as an SLP response, a STOP with delayed pulse cancellation when
the bus fails has been parameterized (p9562[0...1] ≥ 10).
4.13.1.1

Retraction

After a limit of the active traversing range has been exceeded, the drive must be brought back
to the permissible range. A safety acknowledgment would, in this case, only retrigger the safety
messages; the drive would be prevented from moving. If a switchover to the other traversing
range doesn't come into question, then the only thing that remains is to deselect SLP. However,
this would have the disadvantage that it is not monitored as to whether the drive is moving in
the direction of the permissible traversing range.
Therefore, it is recommended that a retract function is implemented as follows:
Safety commissioning
1. Completely parameterize SLP.
2. Completely parameterize SDI.
3. Perform an acceptance test for both functions.
The next steps differ depending on the control type:
164
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB