Wenglor SEFB Series, Руководство по эксплуатации

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Multi-Beam Safety Light Array 41
Procedure when working with table (8.2.2):
Required b S  C
RO
a
Known a, S

C
RO
a, b S

C
RO
, b
1.
In the left column,
search the row with the
known value
a
Select the next smallest
b -value
Select the next smallest
b -value
2.
In the relevant row,
search the column with
the next highest
value for C
RO
In the relevant column,
search the row with the
next highest value for
a
In the relevant column,
search the row with the
next lowest value for C
RO
3.
At the bottom end
of the column, you will
find the relevant
value for b
At the point of intersec-
tion between row and
column, you will find the
value for C
RO
In this row, go to the left
column. Here, you will
find the value for a .
DANGER!
Risk of personal injury or property damage in case of non-compliance with the safety
field specifications!
The system’s safety function is disabled.
Personal injury and damage to equipment may occur.
• Observe the safety field specifications!
Sample calculation:
An ESPE with 3 beams and 400 mm beam distance (SEFB423) is to be used for protection. The required
safety clearance must be calculated.
• Response time of the ESPE t1 = 15 ms
• Over-travel time of the safety switching device t2 = 15 ms
• Machine over-travel time t3 = 300 ms
• Height of the danger zone a = 1,600 mm
• Reference height H = 300 mm
• Height of the safety field above ground b = 1,100 mm (SFH + H)