Specification

Specifications table for model SF4D-A16-01
ItemPerformance characteristics
No. of Beam Channels16
Protective Height 630 mm
24.803 in
(Note): When using as a safety device for a press machine in China or when using SF4D-□-01 as a safety device for a press machine or paper shearing machine in Japan, the length from the center of the first beam channel to the center of the last beam channel become to be protective height.
Protective Height: When Using as Safety Equipment for Chinese Press Machine or When Using for Japanese Press Machine or Paper Shearing Machine 600 mm
23.622 in
(Note): When using as a safety device for a press machine in China or when using SF4D-□-01 as a safety device for a press machine or paper shearing machine in Japan, the length from the center of the first beam channel to the center of the last beam channel become to be protective height.
Current ConsumptionEmitter : 100 mA or less, Receiver : 130 mA or less
PFH<sub>D</sub>1.36×10-9
MTTF<sub>D</sub>910 years or more
Weight (Total Of Emitter And Receiver)1,500g approx.
Applicable Standards: International StandardIEC 61496-
1/2 (Type 4), ISO 13849-
1 (Category 4, PLe), IEC 61508-1 to 7 (SIL3)
Applicable Standards: JapanJIS B 9704-1/2 (Type 4), JIS B 9705-1 (Category 4), JIS C 0508-1 to 7 (SIL3)
Applicable Standards: Europe (EU)EN ISO 13849-1 (Category 4, PLe), EN 55011, EN 61000-6-2, EN IEC 63000
Applicable Standards: North AmericaANSI/UL 61496-1/2 (Type 4),CAN/CSA C22.2 No.14, CAN/CSA E61496-1/2
Applicable Standards: China (GB)GB/T 4584
CE Marking Directive ComplianceMachinery Directive, EMC Directive, RoHS Directive
Min. Sensing Objectø45 mm ø1.772 in opaque object
(Note): When the floating blanking function is used, the size of the minimum sensing object varies. For the detail, refer to the section on Safety distance.
Operating RangeShort mode : 0.2 to 9 m 0.656 to 29.528 ft
Long mode : 0.8 to 15 m 2.625 to 49.213 ft
(selectable by DIP switch)
(Note): The operating range is the possible setting distance between the emitter and the receiver.
Power Voltage 24 V DC+20-30 % Ripple P-P 10 % or less (excluding voltage drop due to cable)
(Note): In consideration of the voltage drop caused by the cable, use Control output (OSSD 1, OSSD 2) source / sink current and cable length as a guideline.
Effective Aperture Angle±2.5° or less at a sensing range of 3 m 9.843 ft or longer (based on IEC 61496-2)
Control Outputs (OSSD 1, OSSD 2)PNP open-collector transistor / NPN open collector transistor (selectable)


・Maximum source current : 350 mA
・Applied voltage : Same as supply voltage
(between control output and +V)
・Residual voltage : 2 V or less (source current 350 mA)
(excluding voltage drop due to cable)
・Leakage current : 0.2 mA or less (including power OFF state)
・Maximum load capacity : 2.2 μF
・Load wiring resistance : 3 Ω or less


・Maximum sink current : 350 mA
・Applied voltage : Same as supply voltage
(between control output and 0 V)
・Residual voltage : 2 V or less (sink current 350 mA)
(excluding voltage drop due to cable)
・Leakage current : 0.2 mA or less (including power OFF state)
・Maximum load capacity : 2.2 μF
・Load wiring resistance : 3 Ω or less
Control Outputs (OSSD 1, OSSD 2): Operation ModeON when all beams are received, OFF when one or more beams are blocked
(Also OFF when internal sensor error or synchronization signal error occurs)
(Note): Note that the setting cannot be changed when SF4D-□-01 is used.
Control Outputs (OSSD1, OSSD2): Protection CircuitIncorporated
Control Output (OSSD 1, OSSD 2): Response TimeOFF response : 10 ms or less (Not connected in series / parallel), 18 ms or less (Connected in series / parallel)(Note 1)
ON response : 50 ms or less (Note 2)(Note 3)
(Note 1): For response times by number of beams, refer to the Control output (OSSD 1, OSSD 2) OFF response times.
(Note 2): Because the control output (OSSD 1, OSSD 2) must be OFF for at least 80 ms, the ON response will be delayed more than 50 ms when the light blocked time is less than 30 ms.
(Note 3): When optical synchronization is selected, if the beam axes of both the top end and bottom end are blocked, the ON response speed decreases by as much as 1 sec.
Auxiliary Output (AUX) (Non-Safety Output)PNP open-collector transistor / NPN open collector transistor (selectable)


・Maximum source current : 60 mA
・Applied voltage : Same as supply voltage
(between auxiliary output and +V)
・Residual voltage : 2 V or less (source current 60 mA)
(excluding voltage drop due to cable)
・Leakage current : 0.2 mA or less (including power OFF state)


・Maximum sink current : 60 mA
・Applied voltage : Same as supply voltage
(between auxiliary output and 0 V)
・Residual voltage : 2 V or less (sink current 60 mA)
(excluding voltage drop due to cable)
・Leakage current : 0.2 mA or less (including power OFF state)
Auxiliary Output (AUX) (Non-Safety Output): Operation ModeControl output ON : OFF, Control output OFF : ON
(Note): Note that the setting cannot be changed when SF4D-□-01 is used.
Auxiliary Output (AUX) (Non-Safety Output): Protection CircuitIncorporated
Auxiliary Output (AUX) (Non-Safety Output): Response TimeOFF response : 60 ms or less, ON response : 60 ms or less
Synchronization Method Line synchronization / optical synchronization (selectable by DIP switch)
Interference Prevention Function
・Line synchronization : 2 units or less (auto)
・Optical synchronization : 2 units or less (selectable by DIP switch)


・Series connection : 5 units or less (total number of beam channels 256 or less)
・Parallel connection : 3 units or less (total number of beam channels 192 or less)(Note)
・Series / parallel connection mixed : 5 units or less (total number of beam channels 144 or less)(Note)
(Note): Note that the setting cannot be changed when SF4D-□-01 is used.
Test Input Function Incorporated
Interlock FunctionIncorporated [Manual reset / auto reset (selectable by wiring)] (8-core cable or 12-core cable)
Application Indicator FunctionIncorporated (only the receiver lights up when optical synchronization is used)
Lockout Release Function Incorporated
External Device Monitoring FunctionIncorporated (8-core cable or 12-core cable)
Muting Function Incorporated (12-core cable)
Override FunctionIncorporated (12-core cable)
Power Save Function Incorporated
Optional FunctionsOptional functions cannot be used when SF4D-□-01 is used.
Pollution Degree 3
Operating Altitude2,000 m 6,561.68 ft or less
(Note): Do not use or store in an environment pressurized to atmospheric pressure or higher at an altitude of 0 m.
Environmental Resistance: Degree of ProtectionIP67, IP65 (IEC), NEMA Type 13 (NEMA 250)
Ambient Temperature-10 to +55 ℃ +14 to +131 ℉ (No dew condensation or icing allowed), Storage : -25 to +60 ℃ -13 to +140 ℉
Ambient Humidity30 to 85 % RH, Storage : 30 to 95 % RH
Ambient IlluminanceIncandescent light : 5,000 ℓx or less at the light-receiving surface
Environmental Resistance: Dielectric Strength Voltage1,000 V AC for one minute, between all supply terminals connected together and enclosure
Insulation Resistance20 MΩ, or more, with 500 V DC megger, between all supply terminals connected together and enclosure
SFF (Safe Failure Fraction)99%
Shock Resistance300 m/s2 acceleration (30 G approx.) in X, Y, and Z directions three times each
Malfunction resistance 100 m/s2 acceleration (10 G approx.) in X, Y, and Z directions 1,000 times each
Vibration Resistance10 to 55 Hz, 0.75 mm 0.030 in double amplitude in X, Y, and Z directions for two hours each
Malfunction resistance 10 to 55 Hz, 0.75 mm 0.030 in double amplitude in X, Y, and Z directions twenty times each
HFT (Hardware Fault Tolerance)1
Subsystem TypeType B (IEC 61508-2)
T1 (Proof Test Interval) 20 years
Failure Response TimeWithin response time (OFF response)
Safety StateControl output (OSSD 1 / 2) OFF state
Emitting ElementInfrared LED (peak emission wavelength : 850 nm 0.0335 mil)
MaterialEnclosure : Aluminum, Detection surface : Polycarbonate resin and stainless steel (SUS304), Upper cap / lower cap : Nylon
Connecting MethodBy connector
Cable ExtensionTotal length of emitter / receiver can be extended up to 70 m 229.659 ft each using optional mating cable (including the length
of series mating cables)
(Note): In consideration of the voltage drop caused by the cable, use Control output (OSSD 1, OSSD 2) source / sink current and cable length as a guideline.
Accessories-
RemarkWhere measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20 ℃ +68 ℉.
PFHD : Probability of Dangerous Failure per Hour, MTTFD : Mean Time to Dangerous Failure (in years).
Applicable Standards: ChinaGB/T 4584
Directive ComplianceCE Marking (Machinery Directive, EMC Directive, RoHS Directive) , TÜV SÜD certification,TÜV SÜD NRTL certification (U.S.A., Canada), OSHA 1910.212, OSHA 1910.217(C), ANSI B11.1 to B11.19, ANSI/RIA 15.06

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