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SLS 78M/P-1730-T2-4
Technical Data
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Safety Light Barrier
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SLS 78M/P-1730-T2-4
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| Safety category |
Type 2 according to EN 61496-1,-2 in combination with a test monitoring unit. |
| Operating range 1) |
0 - 120 m |
| Limit range 2) |
0 - 150 m |
| Light source |
LED (alternating light) |
| Wave lenght |
880 nm |
| Enclosure rating |
IP 65 |
| Operation voltage UB |
24 V DC 20 % |
| Residual ripple |
 15 % von UB |
| No-load current |
Transmitter: 60 mA
Receiver: & 35 mA |
| Switching output |
pnp transistor output |
| Releasing time |
max. 200 mA |
| Function |
bright switching |
| Signal voltage high/low |
 (UB - 2 V) / 2 V |
| Output current |
max. 200 mA |
| Switching frequency |
300 Hz |
| Pickup time |
1,7 ms |
| Readiness delay |
5 ms |
| Initial impulse |
min. 1,7 ms |
Transmitter
LED yellow |
Transmitter ON |
Receiver
LED green
LED green, flashing
LED red |
Light path free
Light path free, no functional reserve
Light path interrupted |
| Housing |
Aluminium die casting |
| Optical parts |
Glass, Effective apperture angel ±4° |
| Weight |
463 g |
| Connection |
M12 circular plug connection, 4-pin plug |
| Ambient temperature (operation/storage) |
-25 °C ... +60 °C / -30 °C ... +70 °C |
| VDE-Protection class |
III |
| Protective cabling 3) |
1, 2, 3 |
| Shock proof |
Semi sine, 30 gn, 11 ms (IEC 947-5-2) |
| Vibration proof |
10 - 55 Hz, max. 7,5 gn (IEC 947-5-2) |
| Electromagnetic tolerance |
Degree of severity 3 (IEC 801.2...4) |
| Transmitter activ/not aktiv |
8 V / 2 V or not wired |
| Activation/locking delay |
400  |
| Input resistance |
4,7 k ± 10 % |
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1) Operating range: recommended Range with functional reserve
2) Limit range: max. possible range without function reserve
3) 1 = transient protection, 2 = pole reversal protection, 3 = Short circuit protection |
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Activating input enables a logical connection of several light barriers.
Example:
Connection of several light barriers (max. 6 per channel) in series-connection to a monitoring unit.
Function:
The active input on the first light barrier transmitter of a series connection is connected to the initial input of the monitoring unit. After monitoring is released, transmitter is activated. The matching first receiver switches to signal "high". With this signal the next transmitter is activated and the matching receiver switches also to signal "high". The last receiver switching output of the group series connection is led back to the monitoring unit. The operating voltage is connected separately to all sensors.
Note:
The through-beam safety light barrier is an electro-sensitive protective device only in connection with a safety-relevant control system where the cyclical testing of transmitter and receiver is carried out according to EN-/IEC 61496-1, 2, category 2 (testing). The power supply to the light barrier must intercept changes and interruptions in the supply voltage in accordance with EN 61496-1. Minimum darkening object Ø 30 mm.
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