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1 Significant Features and Requirements

1-1 F3SS General Description

1

1  Significant Features and Requirements

1-1 F3SS General Description

The F3SS single safety light beam is a general purpose presence sensing device. The F3SS is designed spe-
cifically for whole body detection and must not be used for point of operation guarding.

1-2 Meeting Full Compliance

Whether a specific machine application and F3SS installation meets full compliance with safety regulations de-
pends on several items, including the proper application, installation, maintenance and operation of the F3SS. 
These items are the sole responsibility of the purchaser, installer and employer.

1-3 Employer Responsibilities

The employer is also responsible for the selection and training of the personnel necessary to properly install, 
operate and maintain the machine and its safeguarding systems. The F3SS must only be installed, checked out 
and maintained by a qualified person, as  “a person or persons who, by possession of a recognized degree or 
certificate of professional training, or who, by extensive knowledge, training or experience, has successfully 
demonstrated the ability to solve problems relating to the subject matter and work.” (ANSI B30.2-1983)
The machine operator must notify management if the machine, tooling or safety devices are not operating prop-
erly. Never use the machine if it is not in proper working order.

1-3-1 Additional Requirements

The following is a list of additional requirements you must meet before using the F3SS safety light beam.

• Never use the F3SS for point of operation guarding.
• The machine on which the F3SS is installed must be capable of stopping motion anywhere in its stroke or 

cycle. Do not use the F3SS on a power press with a full-revolution clutch. This product cannot be used in 
Japan as a safety device for pressing or shearing machines provided by article 42 of that law.

• The F3SS does not offer protection from flying objects.
• Do not use the F3SS on any device with inconsistent stopping time or inadequate control devices or 

mechanisms.

• Do not use the F3SS where the environment, such as severe smoke, particulate matter, or corrosive 

chemicals, may degrade the efficiency of the F3SS.

• When the F3SS is utilized as a safety device, the employer has the responsibility to ensure that all applicable 

national, federal, state and local rules, codes and regulations are satisfied.

• All safety-related machine control circuit elements, including pneumatic, electric or hydraulic controls must 

be control reliable. Control reliable is defined as: “...the device, system or interface shall be designed, 
constructed and installed such that a single component failure within the device, interface or system shall 
not prevent normal stopping action from taking place, but shall prevent a successive machine cycle...”

• Additional guarding such as mechanical guards may be required if the F3SS does not protect all points of 

entry into the hazardous area.

• All brakes and other stopping mechanisms and controls must be in proper working order. If the machine stop 

mechanisms and associated controls are not working properly, the machine may not stop safely even though 
the F3SS is functioning properly.

• The test procedures must be performed after any maintenance is performed on the machine controls or the 

F3SS. The test procedure (Appendix A) is contained in this manual. The user must perform (at least every 
three months, more often with continuous use) the preventive maintenance procedures recommended in this 
manual.

• Do not perform any test or repairs other than those outlined in this manual. All electrical wiring must be 

installed in accordance with local electrical codes and regulations.

• The user must follow all procedures in this manual for proper operation of the F3SS. 
• The enforcement of these requirements is beyond OMRON’s control. The employer has the sole 

responsibility to follow the preceding requirements and any other procedures, conditions and requirements 
specific to his machinery.

Summary of Contents for F3SS

Page 1: ...Single Beam Safety Sensor INSTRUCTION MANUAL Cat No SCEE711 E2 1 INSTRUCTION MANUAL Single Beam Safety Sensor F3SS Series Cat No SCEE711 E2 1...

Page 2: ...tandard IEC 61496 1 Type 4 ESPE IEC 61496 2 Type 4 AOPD If you use the F3SS under the condition or environment shown below be sure to use it by leaving a mar gin for each rating and function and takin...

Page 3: ...ements 6 4 4 Minimum Safe Mounting Distance and Mounting Height 7 4 5 Switch Settings 8 4 5 1 Emitter and Receiver Code Switches 8 4 5 2 Operating Mode Switches 8 4 6 Electrical Connections 12 4 6 1 E...

Page 4: ......

Page 5: ...e F3SS does not offer protection from flying objects Do not use the F3SS on any device with inconsistent stopping time or inadequate control devices or mechanisms Do not use the F3SS where the environ...

Page 6: ...er supply voltage 24 VDC 10 ripple p p 5 or less Rise time after power ON Within 4 seconds Current consumption Emitter 170 mA max Receiver 800 mA max Operating mode Either of the following modes is se...

Page 7: ...nstallation Figure 2 2 System Drawing Figure 2 3 Indication position Figure 2 4 Switch and Terminal block position RECEIVER SENSING BEAM EMITTER 88 9 93 0 25 4 139 7 32 4 13 0 6 9 PG 9 50 8 20 5 35 1...

Page 8: ...led F1 and F2 These lights flash at different rates to provide troubleshooting assistance The faults indicated by the number of flashes are detailed in the troubleshooting section of this manual Figur...

Page 9: ...uit applies about 5mA DC current through the switch contacts and a pulse of approximately 100mA 20mS when the switch contacts are initially closed In Automatic Start mode a start switch is not require...

Page 10: ...for an operator to stand between the F3SS and the machine For perimeter guarding installation the guarded machine or robot must be wired such that any detected inter ruption of the F3SS beam will caus...

Page 11: ...g the value of K to be used T the overall system stopping performance second T must include the response time of controls clutches braking systems and the F3SS 35 mS and the time for the machine to ce...

Page 12: ...Receiver Operating Mode Switch on page 5 Positions 1 2 on SW1 and SW2 in the receiver are used to set the operation mode Switch settings are given below Code Emitter Dip Switch Receiver Dip Switch Pos...

Page 13: ...of Restart Interlock rerquires Restart before machine will run Restart Signal resumes Machine Run condition F3SS Status Indicators Run Green Stop Red Interlock Yellow START RESTART INTERLOCK FUNCTION...

Page 14: ...ntacts Open Machine Stop Sensing Beam Clear Power Supply Off Power Up Sensing Beam Clear Machine Start Machine Run Condition Sensing Beam Blocked F3SS Status Indicators Run Green Stop Red Interlock Ye...

Page 15: ...11 Figure 4 5 Switches and Terminals 3 1 5 4 6 7 2 Receiver 1 3 4 2 ON SW1 1 3 4 2 ON SW2 PCB Terminal block Dip switch Rear Cover Pulled out PCB Emitter 1 3 4 2 ON SW1 PCB Terminal block Dip Switch R...

Page 16: ...s 4 6 3 Long cable length installation for Receiver For a receiver installed with a cable greater than 9mm 30 feet in length and a load of less than 50mA A load resistor 1 K ohm 1 watt provided in har...

Page 17: ...both outputs will be forced to the de energized state T Solid state outputs should be connected only to a control reliable safety rated PLC or a control reliable safety rated machine control system F...

Page 18: ...ression devices should only be installed across the coils of the machine control relays Never install Arc Suppression devices directly across the control output contacts of the F3SS An arc suppression...

Page 19: ...uld only be installed across the coils of the machine control relays Never install Arc Suppression devices directly across the control output contacts of the F3SS An arc suppression device installed a...

Page 20: ...Contacts KM1 KM2 b PLC input PLC output KM3 Description in square parentheses indicates terminal name or terminal number S1 Reset switch NO contact KM1 and KM2 Magnet contactor model LP1D KM3 Solid s...

Page 21: ...re is no optical path corresponding to the dashed line That could be done with the installation shown in Figure 4 10 Figure 4 10 Preferred Mounting Orientation This installation doesn t allow either r...

Page 22: ...tected because of reflection Reflective surfaces interference may also appear above and below the sensing beam Figure 4 14 Worst Case Alignment example This shows minimum distance from reflective surf...

Page 23: ...r has an amber color visible alignment indicator which provides the following informa tional Note Where used with mirrors it is recommended to use the optional laser alignment tool F39 LLK to ease ali...

Page 24: ...emitter and receiver and can affect operation of the F3SS A periodic cleaning will prevent these problems Clean the lenses with a mild detergent or glass cleaner Use a clean soft lint free cloth or wi...

Page 25: ...s for F3SS Model Number Description F39 MSG Front Surface Glass Mirror F39 MSS Polished Stainless steel Mirror F39 LM45 Bracket for mounting above mirrors at 45 angle F39 LLK Laser Alignment Tool F39...

Page 26: ...nt of hazardous opera tion Pass Fail 4 Check for signs of external damage to the F3SS the machine and the electrical cables and wiring If any damage is found lockout the machine and report to the supe...

Page 27: ...hinery did not function exactly as described in the Test Procedure do not operate the machinery If the machine safety devices braking systems and controls do not operate properly they cannot stop haza...

Page 28: ...Fail 2 Verify that the mounting distance of the F3SS is equal to or greater than the minimum safe distance from the point of operation Pass Fail 3 Determine that all access to the danger point not pro...

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