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3.5.2 Power supply
The setting of the power BLPS must comply with the following requirements, otherwise, it
may result in damage.
To ensure the normally working of the laser safety protection device, the power supply must
comply with the following requirements:
Output voltage of BLPS should be within the rated voltage range.
Meet the requirements of the load current.
Meet the EMC directive (industrial environment).
Double or reinforced insulation should be adopted between primary and secondary.
When the external voltage fluctuates or drops, the holding time of output is larger than
20ms.
The output current should be larger than 1A with the automatic recovery of overcurrent
protection.
The power supply must have overvoltage and overcurrent protection of the output.
Must comply with the local regulations and laws, for example, in the EU, the power
supply must meet EMC directives and LVD directives, in our country, the power supply
must meet the national 3C certification requirements.
The interior of the BLPS realize the overcurrent protection by using PTC, users should
add 1A fuse to the power input circuit.
3.5.3 Wiring procedures
When extending the communication line with a cable other than the dedicated cable, use a
cable with the same or superior specifications, and don’t make it exceed the specified
maximum length, failure to do so may affect the stability of BLPS.
Sensor used alone
Wiring procedures:
1）Transmission cable is connected to the emitter.
2）Transmission cable is connected to the receiver.
3
）
Connect to the power supply.
4
）
Connect 0V and shielded layer to the ground.
5）Connect the control output corresponding to the detecting beams according to the control
requirements.
The wring diagram of sensor is as followed.
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