Rockwell Automation MSR42 Curtains Configuration and Diagnostic Software Tool User Manual - Manual (Page 25)

23
Light Curtain Multi-Function Control Module User Manual
Original instructions
The machine stop time must also be entered. This “time” must consider the total length of time, from the moment the MSR45E expander relay contacts
open (or when the OSSD outputs change from high to low), until the machine stops. The momentum of the machine, for example, must also be taken
into consideration when calculating this stopping time.
Figure 31: Calculation of the total response time
The default value for the MSR42 control unit response time t(C) is given on the configuration control document.
For information regarding the response time of a GuardShield Micro 400 safety light curtain t(LC), see the light curtain label. If the Micro 400 is
defined in the “Configuration and diagnostic software tool” (
Figure 33) then the exact time is given in the configuration control document (Figure 51).
To complete the minimum safety distance calculations, the following data must also be entered ( Figure 32):
1. Light curtain resolution
2. Distance between transmitter and receiver
3. Safety category
Figure 32: Resolution, distance and safety category
If all the data is entered, the following results will be displayed:
• The minimum safety distance between the protective field and the danger point (S [mm]), for vertical mounting.
• The minimum safety distance to a reflective surface (S2 [mm])
Notice:
Consult the MSR42 user manual, for additional information regarding these calculations. An example of a completed application is shown above.
To see the formulas used to calculate the safety distances, simply position the cursor over the corresponding result. After a short period of time, the
corresponding formula will be displayed (
Figure 32).
5.4.4. Possible Configurations
Currently, the following safety components and special functions are available (2, Figure 25):
1 2
3