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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

/ 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

Summary of Contents for OY90 S Series

Page 1: ...11510704 00 01 2023 Original operating instructions Photoelectric safety sensors safety light grid with active passive system OY90xS UK UK...

Page 2: ...nment 12 6 4 1 Optical alignment 12 6 5 Distance of reflective surfaces 13 6 6 Multiple systems 14 6 7 Use of corner mirrors 15 7 Electrical connection 16 7 1 Wiring active element 16 8 Operating mode...

Page 3: ...3 11 Scale drawing 24 11 1 Position of the light beams 25 12 Technical data 26 12 1 1 Safety light grids 2 3 and 4 beams 27 13 Troubleshooting 27 13 1 Configuration error 27 13 2 System error 28 13 3...

Page 4: ...ons before use to familiarise yourself with operating conditions installation and operation Adhere to the safety instructions 1 1 Symbols used Instructions Reaction result Cross reference LED off LED...

Page 5: ...it externally before handling it Disconnect all relay load circuits that are supplied independently After setup the system has to be subjected to a complete function check Only use the unit under the...

Page 6: ...electric safety sensors with the chemicals used Adhere to the principle of normally closed operation for all external safety circuits connected to the system If the photoelectric safety sensors go int...

Page 7: ...rs reference no 704818 If one of the above mentioned components is missing or damaged please contact one of the ifm branch offices 4 Functions and features Active A Passive P T M M R T transmitter R r...

Page 8: ...protected area height is the height protected by the safety light grid It depends on the design 12 Technical data The protected area width range is the maximum distance between the active and the pass...

Page 9: ...rea Depending on the application other mechanical protective equipment may be necessary The operating conditions at the mounting location must not affect the functioning of the photoelectric safety se...

Page 10: ...tion According to the European Standard EN 999 2008 the following formula is to be used to calculate the minimum safety distance S S K t1 t2 C C 8 d 14 A hazardous area H protected area height S minim...

Page 11: ...es They must not be used for the protection of hands or body parts The minimum safety distance S is determined using the following formula S 1600 t t2 850 The height of the upper light beam H1 measure...

Page 12: ...he supplied mounting accessories so that they are exactly opposite each other 6 4 1 Optical alignment A P A P A P A A A Active P Passive Align the active and the passive element so that they are paral...

Page 13: ...nd the protected area P must be observed In case of non compliance an object which has to be detected cannot be sensed In case of improper handling of the product the safety and physical integrity of...

Page 14: ...nction and disable the protective function The safety light grids are to be installed so that the beam sent by the transmitter of a system can only be detected by the respective receiver The following...

Page 15: ...on where U shaped access protection is implemented using two mirrors Passive P Active A A hazardous area M corner mirror S minimum safety distance Dx side length Install the corner mirrors so that the...

Page 16: ...bridge is used Connect the unit as indicated in the following table 7 1 Wiring active element Pin layout Pin Name Type Description 6 2 1 4 5 7 3 8 1 OSSD1 Output Static safety related output 1 2 24 V...

Page 17: ...onitoring of the feedback contacts K1_K2 Connects to L 24 V DC via NC of the feedback contacts SEL_A Connects to OSSD2 pin 3 SEL_B Connects to OSSD1 pin 1 6 8 5 L L 4 3 1 C Manual K1_K2 Connects to L...

Page 18: ...ea without being detected The start restart button has to be outside the hazardous area It has to be installed so that the hazardous area and access can be clearly seen It must not be possible to acti...

Page 19: ...tween the operating voltage and K1_K2 8 Operating modes table fig B and D 8 4 Internal test function Type 4 safety light grids continuously perform internal tests Faults are detected within the respon...

Page 20: ...l light beams Align the active element so that the green LED lights Securely fasten the active and the passive element 9 1 2 Alignment in the manual mode In the manual operating mode the yellow LED li...

Page 21: ...started Automatic C Automatic with monitoring C Manual C Manually with monitoring C Normal operation Protected area interrupted outputs deactivated Protected area clear outputs deactivated waiting fo...

Page 22: ...e of the outputs OSSDs is switched off zero current state logic 0 If one of the outputs is switched off the subsequent safety related logic unit must bring the complete system into the state defined a...

Page 23: ...used 1 2 Interrupt the light beams with the test object First of all in the centre 1 and then close to the active and the passive element 2 Make sure that the red LED on the active element is continu...

Page 24: ...10 5 3 13 5 25 50 50 6 5 6 5 M6 50 11 8 30 10 5 5 5 7 A P M12x1 50 60 13 114 122 L A P L Active element Passive element Total length 1 LED orange 2 LED red 3 LED green 4 LED yellow 5 Display Available...

Page 25: ...el Beams Position of the light beams measured from the lower edge of the connector mm OY901S 2 114 614 OY902S 3 114 484 544 914 OY903S 4 114 414 714 1014 technically realised like a 4 beam light grid...

Page 26: ...CL_max F 2 2 Power on delay time s 10 Mission time TM h 175200 Protected area width range m 0 6 EMC IEC 61496 1 Vibration IEC 61496 1 Shock IEC 61496 1 Ambient temperature C 10 55 Max perm relative a...

Page 27: ...rval T ms 6 5 7 0 7 0 Ratio ti 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...

Page 28: ...sive element Change location of the interfering transmitter so that the receiver is not influenced Screen the beams coming from the interfering transmitter using a mat protective device 13 3 System fa...

Page 29: ...larly dusty environments we recommend to spray the cleaned front pane with an antistatic product Do not use any aggressive or abrasion developing cleaning agents since they could attack the surfaces T...

Page 30: ...stem MTTFd Mean Time To Dangerous Failure OSSD Output Signal Switching Device Static safety related output PFH PFHD Probability of dangerous Failure per Hour PL Performance Level Capability of safety...

Page 31: ...top or shutdown delay of the machine been measured and adapted according to the installation of the safety light grids 5 Have the safety light grids been duly fixed and secured against loosening or mo...

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