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