27
UK
12.1.1 Safety light grids 2, 3 and 4 beams
OY901S
OY902S
OY903S
Number of beams
2
3
4
Total length L
[mm]
Active element
Passive element
736
723
1036
1023
1136
1123
Protected area height
[mm]
500
800
900
Response time
[ms]
10
10�5
10�5
Safety-related reliability PFH
D
[1/h]
4,8
-09
4,9
-09
5,0
-09
Test pulse duration t
i
[µs]
90
90
90
Test pulse interval T
[ms]
6,5
7,0
7,0
Ratio t
i
/ T
[%]
1,4
1,3
1,3
13 Troubleshooting
The LEDs of the active element indicate faulty operating states
(→ 9 Operating and display elements). In case of system failures or errors an error
code is displayed� In addition the red LED is lit� For a detailed fault description see
the following tables�
13.1 Configuration error
Display
Possible cause
Troubleshooting
C
User configuration rejected
Check configuration
2
OSSD wrongly connected to
24V=
Check OSSD connection
E
External feedback contact
missing
Check feedback contact
