【Notification of Manufacturer Change for Panasonic Industrial Devices SUNX Products and Panasonic Industrial Devices SUNX Tatsuno Products】
From April 1, 2024, the terms "Panasonic Industrial Devices SUNX Co., Ltd." and "Panasonic Industrial Devices SUNX Tatsuno Co., Ltd."
in this page and in the manuals and other documents to be downloaded will all be replaced with "Panasonic Industry Co., Ltd." and applied accordingly.

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Compact Type 4 Safety Beam Sensor ST4

Specifications

Sensor heads

Type Cable length 0.2 m 0.656 ft Cable length 1 m 3.281 ft
  With emission
amount adjuster
  With emission
amount adjuster
Model No. ST4-A1-J02 ST4-A1-J02V ST4-A1-J1 ST4-A1-J1V
Applicable standard (Note 2) IEC 61496-1/2 (JIS B 9704-1/2 / UL 61496-1/2) (Type 4), ISO 13849-1:2015 (Category 4, PLe), JIS B 9705-1 (Category 4),
IEC 61508-1 to 3 (SIL3), IEC 62061 (SIL3), JIS C 0508-1 to 3 (SIL3), UL 1998, OSHA 1910.212, OSHA 1910.217 (C),
ANSI B11.1 to B11.19, ANSI/RIA R15.06, ANSI/ISA S84.01 (SIL3)
CE marking directive compliance Machinery Directive, EMC Directive, RoHS Directive
Operating range 0.1 to 15 m 0.328 to 49.213 ft (Note 3)
Sensing object φ9 mm φ0.354 in or more opaque object
Effective aperture angle (EAA) ±2.5° or less for operating range exceeding 3 m 9.843 ft (required by IEC 61496-2 / UL 61496-2)
Supply voltage Supplied from controller
Current consumption Emitter: 11 mA or less, Receiver: 9 mA or less
Beam interruption indicator
(Note 4)
Red LED (lights up when the beam is interrupted or lock out, lights off during reception)
Beam emission indicator Green LED (lights up during beam emission, lights off during emission halt)
Stable incident beam
indicator
Green LED (lights up under stable light received condition, lights off under unstable light received condition)
Degree of protection IP67 (IEC)
Ambient temperature −10 to +55 ℃ +14 to +131 (No dew condensation or icing allowed),
Storage: −25 to +70 ℃ −13 to +158
Ambient humidity 30 to 85 % RH, Storage: 30 to 95 % RH
Ambient illuminance Incandescent lamp: 3,500 Lx or less at the light-receiving face
Voltage withstandability 1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance 20 MΩ or more with 500V DC megger between all supply terminals connected together and enclosure
Vibration resistance 10 to 55 Hz frequency, 0.75 mm 0.030 in double amplitude or maximum acceleration 90 m/s2 in X, Y and Z directions for two hours each
Shock resistance 300 m/s2 acceleration in X, Y and Z directions three times each
Emitting element Infrared LED (Peak emission wavelength: 870 nm 0.034 mil)
Material Enclosure: PBT (Polybutylene terephthalate), Lens: Acrylic, Indicator cover: Acrylic
Cable Shielded cable with connector, 0.2 m 0.656 ft long Shielded cable with connector, 1 m 3.281 ft long
Cable extension Extention up to total 50 m 164.042 ft is possible for both emitter and receiver with exclusive cable.
Weight
(Total of emitter and receiver)
Net weight: 45 g approx.
Gross weight: 60 g approx.
Net weight: 100 g approx.
Gross weight: 140 g approx.

Notes:1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20℃ +68.
2) Complies with those standards only when the sensor head is used in combination with the controller ST4-C11 / ST4-C12EX.
3) The operating range is the possible setting distance between the emitter and the receiver. It can detect sensing object of less than 0.1 m 0.328 ft away.
4) Shows light interruption information between the emitter and the receiver with the same address. It does not show OSSD output.

Controllers

Type Controller High-functional controller
Model No. ST4-C11 ST4-C12EX
Applicable sensor head ST4-A□
  No. of series connections Interference prevention possible when up to a maximum of 6 sets are connected
(When the maximum of 3 controllers are connected together, interference prevention is possible for up to 18 sets)
Applicable standards (Note 2) IEC 61496-1/2 (JIS B 9704-1/2 / UL 61496-1/2) (Type 4), ISO 13849-1:2015 (Category 4, PLe), JIS B 9705-1 (Category 4),
IEC 61508-1 to 3 (SIL3), IEC 62061 (SILCL3), JIS C 0508-1 to 3 (SIL3), UL 1998, OSHA 1910.212, OSHA 1910.217 (C),
ANSI B11.1 to B11.19, ANSI/RIA R15.06, ANSI/ISA S84.01 (SIL3)
CE marking directive compliance Machinery Directive, EMC Directive, RoHS Directive
Supply voltage 24 V DC +10−15 % Ripple P-P 10 % or less
Current consumption 100 mA or less (excluding sensor head ST4-A□) 120 mA or less (excluding sensor head ST4-A□)
Control outputs
(OSSD1, OSSD2)
(Note 3)
PNP open-collector transistor / NPN open-collector transistor,
Dual output x 1 system (Set using output polarity selection switch)

<PNP output>
• Maximum source current: 200 mA
• Applied voltage: same as the supply voltage (between control output and +V)
• Residual voltage: 2.5 V or less (at 200 mA source current)
• Leakage current: 200 μA or less (including power OFF condition)
• Maximum load capacity: 1 μF (from no-load to max. source current)
• Load wiring resistance: 3 Ω or less (between control output and load)

<NPN output>
• Maximum sink current: 200 mA
• Applied voltage: same as the supply voltage (between control output and 0 V)
• Residual voltage: 2.0 V or less (at 200 mA sink current)
• Leakage current: 200 μA or less (including power OFF condition)
• Maximum load capacity: 1 μF (from no-load to max. sink current)
• Load wiring resistance: 3 Ω or less (between control output and load)
  Operation mode ON when all beams of the connected ST4-A□s are received
OFF when one or more beams of the connected ST4-A□s are interrupted
(except during muting / override when ST4-C12EX is used)
OFF during lockout
Protection circuit Incorporated
Response time OFF response: 25 ms or less, ON response: 90 ms or less (auto reset) / 140 ms or less (manual reset)
Auxiliary outputs
(Note 3)
PNP open-collector transistor / NPN open-collector transistor (Set using output polarity selection switch)
ST4-C11: one output
ST4-C12EX: four outputs

<PNP output>
• Maximum source current: 100 mA
• Applied voltage: same as the supply voltage (between auxiliary output and +V)
• Residual voltage: 2.5 V or less (at 100 mA source current)

<NPN output>
• Maximum sink current: 100 mA
• Applied voltage: same as the supply voltage (between auxiliary output and 0 V)
• Residual voltage: 2.0 V or less (at 100 mA sink current)
  Operation mode OFF when all beams of the connected
ST4-A□s are received
ON when one or more beams of the connected
ST4-A□s are interrupted
<Auxiliary output 1>
ON when muting function is invalid
OFF when muting function is valid
<Auxiliary output 2>
ON when override function is invalid
OFF when override function is valid
<Auxiliary output 3>
ON when muting lamp is in normal condition
OFF when muting lamp is in abnormal condition
<Auxiliary output 4>
Negative logic of the control outputs (OSSD1, OSSD2)
Protection circuit Incorporated
Muting lamp output
(Note 3)
- Available muting lamp: 24 V DC, 1 to 10 W
  Protection circuit Incorporated
PFHD (Note 4) / MTTFD (Note 5) Refer to the following table / More than 100 years
Degree of protection Enclosure: IP40 (IEC), Terminal: IP20 (IEC)
Ambient temperature −10 to +55 ℃ +14 to +131 (No dew condensation or icing allowed)
Storage: −25 to +70 ℃ −13 to +158
Ambient humidity 30 to 85 % RH, Storage: 30 to 95 % RH
Voltage withstandability 1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance 20 MΩ or more with 500 V DC mega between all supply terminals connected together and enclosure
Vibration resistance 10 to 55 Hz frequency, 0.75 mm 0.030 in double amplitude maximum acceleration 90 m/s2 in X, Y and Z directions for two hours each
Shock resistance 300 m/s2 acceleration in X, Y and Z directions three times each
Connection terminal Detachable spring-cage terminal
Wiring cable Terminal block connector: 0.2 to 1.5 mm2
Power supply connector (A1, A2): 0.2 to 2.5 mm2 (only for ST4-C12EX)
Material Enclosure: ABS
Weight Net weight: 180 g approx.
Gross weight: 390 g approx.
Net weight: 240 g approx.
Gross weight: 450 g approx.

Notes:1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20℃ +68.
2) Complies with those standards only when the controller is used in combination with the sensor head ST4-□.
3) If the total current of the control outputs (OSSD1, OSSD2), auxiliary outputs, and muting lamp output exceeds 400 mA, the wiring resistance between the controller and the power supply should be 1 Ω or less. In addition, if the total current is 400 mA or less, the wiring resistance between the controller and the power supply should be 2 Ω or less.
4) PFHD (Probability of dangerous failure per hour) depends on number of single beam sensor ST4-A□ connected to controller.
  Number of single beam sensor ST4-A□
1 unit 2 units 3 units 4 units 5 units 6 units
PFHD ST4-C11 4.79 × 10−10 6.53 × 10−10 8.27 × 10−10 1.00 × 10−10 1.18 × 10−10 1.35 × 10−10
ST4-C12EX 4.96 × 10−10 6.70 × 10−10 8.45 × 10−10 1.02 × 10−10 1.19 × 10−10 1.37 × 10−10
5) MTTFD Mean time to dangerous failure (in years)

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