Leuze electronic RSL 420P - Changeover of Five Field Pairs in Changeover Mode Overlapped Monitoring

Functions
Leuze electronic GmbH + Co. KG RSL 420P 40
G1 G
2
SFa SFb
SFc
Fig.5.13: Arrangement of points of operation and protective fields
The field pair changeover from SFa to SFc takes place at timeT0, whereby T0 must be Tv before activa-
tion of point of operationG2 (dangerG2 begins as of Tx). The timeTv is derived from the risk assessment
for the machine and from the rules governing field pair changeover and must be selected such that point of
operationG2 can be shut down in good time.
The field pair changeover from SFc to SFb may take place at time T01=Tz minus the set changeover time
at the earliest (dangerG1 persists until Tz).
Fig.5.14: Protective field switchover at 2 points of operation
5.7.1 Fixed selection of one field pair
If Fixed selection of one field pair is set as the mode for field pair activation, field pair A1.1 is monitored
irrespective of how the control inputs are connected.
5.7.2 Changeover of five field pairs in changeover mode Overlapped monitoring
Changeover mode Overlapped monitoring: This changeover mode is only permitted for up to five field
pairs.