GuardShield Safe 4
Operation Manual
20
8. Selection of a safety light curtain
8.1. Check list
In consideration of following points the selection of a
proper GuardShield Safe 4 safety light curtain will be
simplified:
1. Regulations
Look up carefully the actual regulations and
codes applicable to the particular application in
your country. Local authorities and professional
organisations
as
well
as
ROCKWELL
AUTOMATION representatives will provide
necessary assistance.
USA: Occupation
Safety
and
Health
Administration OSHA, others like ANSI, RIA and
further professional organisations
GB: Health and Safety Executive HSE, safety
con-sultants and professional organisations.
8.2. Selection table
Table 3: 14 mm resolution with ILAS
Catalog No.
Protective Total length B Response time t
R
Max. range Resolution Weight per pair
height A
(mm)
(ms)
(m)
(mm)
(kg)
(mm)
445L-P4L0120YD
120
290
10.5
6
14
1.0
445L-P4L0240YD
240
410
15.8
6
14
1.4
445L-P4L0360YD
360
530
21.1
6
14
1.8
445L-P4L0480YD
480
650
26.3
6
14
2.2
445L-P4L0600YD
600
771
31.6
6
14
2.6
445L-P4L0720YD
720
891
36.9
6
14
3.0
445L-P4L0840YD
840
1’011
42.2
6
14
3.5
445L-P4L0960YD
960
1’131
47.5
6
14
4.0
445L-P4L1080YD
1’080
1’252
52.8
6
14
4.0
445L-P4L1200YD
1’200
1’372
58.1
6
14
4.5
445L-P4L1320YD
1320
1492
63.4
6
14
5.0
445L-P4L1440YD
1440
1612
68.7
6
14
5.5
445L-P4L1560YD
1560
1733
74.0
6
14
6.0
445L-P4L1680YD
1680
1853
79.3
6
14
6.5
445L-P4L1800YD
1800
1973
84.6
6
14
7.0
445L-P4L1920YD
1920
2145
89.9
6
14
7.5
2. Protective field
Determination of
•
required operating range,
•
protective height (available in increments
of 120 mm),
•
resolution (object detection capability: 14
mm or 30 mm)
Operating range and protective height must
be chosen so that the danger points are only
accessible through the protective field.
3. Response time
The response time t
R-BWS
of a GuardShield Safe
4 can be found on the product label and in the
selection table (next section).
4. Corner mirrors
Using corner mirrors allows safeguarding of two
or three protective fields with one light curtain.
Each corner mirror helps reduce the operating
range by approximately 15 % per mirror.