


| Parameter | Value |
|---|---|
| Item | Specifications |
| PFHD | Refer to the following table(Note: (Probability of dangerous failure per hour) depends on number of single beam sensorST4-A□connected to controller.) |
| MTTFD | More than 100 years (Note:Mean time to dangerous failure (in years)) |
| Weight | Net weight: 180 g approxGross weight: 390 g approx |
| Details | Controller |
| Product | Compact Type 4 Safety Beam Sensor |
| Material | Enclosure: ABS |
| Part Number | ST4-C11 |
| Product name | Compact Type 4 Safety Beam Sensor ST4 |
| Wiring cable | Terminal block connector: 0.2 to 1.5 mm2 |
| Power voltage | 24 V DC +10-15 % Ripple P-P 10 % or less |
| Response time | OFF response: 25 ms or lessON response: 90 ms or less (auto reset) / 140 ms or less (manual reset) |
| Product Number | ST4-C11 |
| Auxiliary outputs | PNP open-collector transistor / NPN open-collector transistor (Set using output polarity selection switch)ST4-C11: one outputST4-C12EX: four outputs[PNP output]Maximum source current: 100 mAApplied 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 mAApplied voltage: same as the supply voltage (between auxiliary output and 0 V)Residual voltage: 2.0 V or less (at 100 mA sink current)(Note) 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 Ohm 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 Ohm or less. |
| Muting lamp output | -(Note) 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 Ohm 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 Ohm or less. |
| Connection terminal | Detachable spring-cage terminal |
| Current consumption | 100 mA or less (excluding sensor head ST4-Ax) |
| Applicable standards | 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)(Note) Complies with those standards only when the controller is used in combination with the sensor head ST4-x. |
| Applicable sensor head | ST4-Ax |
| CE marking directive compliance | Machinery Directive, EMC Directive, RoHS Directive |
| Auxiliary outputs:Operation mode | OFF when all beams of the connected ST4-Axs are receivedON when one or more beams of the connected ST4-Axs are interrupted |
| Control outputs (OSSD 1, OSSD 2) | 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 mAApplied 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 micro A or less (including power OFF condition)Maximum load capacity: 1 micro F (from no-load to max. source current)Load wiring resistance: 3 Ohm or less (between control output and load)[NPN output]Maximum sink current: 200 mAApplied 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 micro A or less (including power OFF condition)Maximum load capacity: 1 micro F (from no-load to max. sink current)Load wiring resistance: 3 Ohm or less (between control output and load)(Note) 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 Ohm 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 Ohm or less. |
| Auxiliary outputs:Protection circuit | Incorporated |
| Muting lamp output:Protection circuit | Incorporated |
| Environmental resistance:Ambient humidity | 30 to 85 % RH, Storage: 30 to 95 % RH |
| Environmental resistance:Shock resistance | 300 m/s2acceleration in X, Y and Z directions three times each |
| Environmental resistance:Ambient temperature | -10 to +55 ℃+14 to +131℉(No dew condensation or icing allowed),Storage: -25 to +70 ℃-13 to +158℉ |
| Environmental resistance:Degree of protection | Enclosure: IP40 (IEC)Terminal: IP20 (IEC) |
| Environmental resistance:Vibration resistance | 10 to 55 Hz frequency, 0.75 mm0.030 indouble amplitude or maximum acceleration 90 m/s2 in X, Y and Z directions for two hours each< |
| Environmental resistance:Insulation resistance | 20 MOhm or more with 500 V DC mega between all supply terminals connected together and enclosure |
| Control outputs (OSSD 1, OSSD 2):Operation mode | ON when all beams of the connected ST4-Axs are receivedOFF when one or more beams of the connected ST4-Axs are interruptedOFF during lockout |
| Applicable sensor head: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) |
| Control outputs(OSSD1, OSSD2):Protection circuit | Incorporated |
| Environmental resistance:Voltage withstandability | 1,000 V AC for one min. between all supply terminals connected together and enclosure |
Technical specifications and performance data
Installation and operation guide