Functions
Leuze electronic RSL 430 37
Using start/restart interlock
Ä In addition to the safety sensor you must also install the reset button. The machine operator starts the
machine with this reset button.
Ä Position the reset button outside the danger zone so that it cannot be activated from the protective
fields and danger zones. The operator must be able to see all danger zones from this position.
Ä Identify the area to be released on the reset button so that its meaning is clear and easy to understand.
Ä Ensure that nobody is in the danger zone before pressing the reset button.
Ä Hold down the reset button for between 0.12s and 4s to enable the safety-related switching outputs.
DANGER
Risk of death if start/restart is operated unintentionally!
Ä Ensure that the reset button for unlocking the start/restart interlock cannot be reached from
the danger zone.
Ä Before unlocking the start/restart interlock, make certain that no people are in the danger
zone.
Start interlock
The start interlock function prevents the machine from starting automatically after switching on or after the
supply voltage returns.
The machine only starts when you press the reset button.
Restart interlock
The restart interlock function prevents the machine from starting automatically, as soon as the protective
field is free again. The restart interlock function always includes the start interlock function.
The machine only starts again when you press the reset button.
5.7 Field pair changeover
The safety sensor has 2x ten field pairs. Switchover between the field pairs is possible at all times, pro-
vided the operating situation allows this.
The information for field pair changeover applies both for the field pairs of protective functionA and for
the field pairs of protective functionB.
Use the field pair changeover when the danger zones vary depending on the activity of the machine or the
operating state, e.g. automated guided vehicles (AGVs), to control the field pair changeover for straight and
curved stretches.
If the rules for field pair changeover are not complied with, the safety sensor signals a fault and the safety-
related switching outputs are switched off.
The safety sensor has the following modes for field pair activation and field pair changeover:
• Fixed selection of one field pair
• Selection by signal inputs with the changeover mode Overlapped monitoring
• Selection by signal inputs with the changeover mode Fixed changeover moment
Field pair activation and field pair changeover are configured via the protective function, e.g. CONFIGURA-
TION > Protective functionA > MODE FOR FIELD PAIR ACTIVATION AND CHANGEOVER.
The field pair changeover can be monitored by means of configurable measures (see chapter 5.8 "Monitor-
ing of field pair changeover").
During the changeover process, the safety sensor monitors the field pair active before the field pair
changeover, according to the configured changeover mode and changeover time.