| Connectable light curtain | SF4B series |
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| Applicable standard | IEC / EN 61508 (SIL 3), EN ISO 13849-1 (JIS B 9705-1) (Category 4, PLe), UL 508 |
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Unit power
(Note 2) | Supply voltage | 24 V DC ±10 % Ripple P-P 10 % or less |
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| Current consumption | 140 mA or less (24 V DC, with all points ON) |
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| Protective function | Unit power overvoltage / overcurrent protection function |
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| Fuse | 0.8 A (Not replaceable) |
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| Momentary power failure period | 10ms or less |
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Input
specifications | No. of input points (Note 3) | Input of light curtain: 2 points (with interference prevention function),
Input of terminal block: 6 points (input terminals: 12 points) |
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| Insulation method | Photocoupler |
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| Rated input voltage | 24 V DC |
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| Rated input current | 4.6 mA approx. |
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| Operating voltage range | 24 V DC ±10 % Ripple P-P 10 % or less |
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Max. simultaneous
input points | 100 % |
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| ON voltage / ON current | 15 V DC or more / 2 mA or more |
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| OFF voltage / OFF current | 5 V DC or less / 0.5 mA or less |
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| Input resistance | 5.6 kΩ approx. |
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| Input type | Negative common |
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| Response time | OFF -> ON: 0.4 ms or less (at 24 V DC, excluding connecting device)
ON -> OFF: 0.4 ms or less (at 24 V DC, excluding connecting device) |
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Safety remote station
input response time | 32 ms or less + filter-out time (1 ms, 5 ms, 10 ms, 20 ms, 50 ms) |
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Output
specifications | No. of output points | 4 points (source + sink type), 2 points (source + source type) |
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| Insulation method | Photocoupler |
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| Rated load voltage | 24 V DC |
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| Rated load voltage range | 24 V DC ±10 % Ripple P-P 10 % or less |
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| Max. load current | 0.5 A / point |
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| Inrush current | 1.0 A (10 ms or less) |
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| Leakage current | 0.5 mA or less |
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| Residual voltage | 1.0 V DC or less |
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| Protective function | Output short-circuit protection function |
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| Output type | Source + sink type, Source + source type |
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| Response time | OFF -> ON: 0.4 ms or less (at 24 V DC)
ON -> OFF: 0.4 ms or less (at 24 V DC) |
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Safety remote station
input response time | 32 ms or less |
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| Surge protection | Incorporated (Zener diode) |
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External power
supply
(For external
device)
(Note 3) | Voltage | 24 V DC ±10 % Ripple P-P 10 % or less |
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| Current | 60 mA (24 V DC, with all points ON, excluding external load current) |
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| Protective function | External power supply overvoltage / overcurrent protection function |
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| Fuse | 8 A (Not replaceable) |
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| Wiring method for common | 16 input points / common, 4 output points / common (Terminal block 2-wire type) |
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| Common current | Max. 4 A (Total of inputs and outputs) |
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| No. of stations occupied | 1 station |
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| No. of access to nonvolatile memory | 1012 times |
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| Safety refresh response processing | 38 ms |
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| Excess voltage category | II |
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| Pollution degree | 2 |
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| Protection | IP20 |
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| Ambient temperature | 0 to +55 ℃ +32 to +131 ℉ (No dew condensation), Storage: -40 to +75 ℃ -40 to +167 ℉ |
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| Ambient humidity | 5 to 95 % RH, Storage: 5 to 95 % RH |
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| Dielectric withstand voltage | 500V AC between all external DC terminals and ground, for 1 minute |
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| Insulation resistance | 10 MΩ or more between all external DC terminals and ground, by a 500 V DC insulation resistance tester |
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| Vibration resistance / Shock resistance | Conforming to JIS B 3502, IEC 61131-2 |
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| Material | Enclosure: ABS |
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| External connection system | Terminal block, 2 crimp-style terminals or less |
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| Cable | 0.3 to 2.0 mm2 |
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| Applicable crimp-style terminal | RAV1.25-3 (Conforming to JIS B 2805) (Applicalbe wire size: 0.3 to 1.25 mm2) |
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| Weight | Net weight: 0.7 kg approx. |
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