Can the Strength Analysis safety light curtain be replaced with ordinary sensors

In modern industrial production, due to the complexity of the production process, people are becoming more and more unable to control mechanical safety in conventional safety measures. In order to improve the safety of machinery, more and more manufacturers are beginning to consider adding safety to their equipment. Protective products, especially "safety light curtains".

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

When parts are continuously fed and sent out on a high-speed and relatively dangerous machine, an opening is required. If a protective door is installed here, it will seriously affect production, and it will inevitably fail to balance efficiency and safety. The "safety light curtain" can effectively protect the operator from injury while not affecting production.

Here comes the problem

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

The safety light curtain is a sensor device with rows of through-beam photoelectric switches installed from top to bottom. Why can't it be replaced by ordinary through-beam photoelectric switches?

Ordinary photoelectric switch



Can the "safety light curtain" be replaced?

From the detection principle, if multiple through-beam photoelectric switches are combined, it can indeed achieve the same effect as the "safety light curtain" and save a lot of costs...

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

However, this method has several fatal flaws, which makes it impossible to completely replace the "safety light curtain"

1【Lack of fault self-checking function】

Both the photoelectric sensor and the safety light curtain may malfunction or be unstable due to various conditions such as environment and aging. However, when the photoelectric sensor fails, there is no self-check function, and there is a greater safety hazard!

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

2 [Poor environmental resistance]

In addition to fault self-checking performance, "safety light curtain" also has heat resistance, EMC performance, anti-interference performance, vibration resistance and anti-electric shock performance. Everything is designed for the purpose of protecting people. This is also a common photoelectric sensor. Not available...

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

3【There is a blind spot in detection】

Even if the photoelectric switch is installed tightly, there is still a detection blind zone between the upper and lower optical axes, and the "safety light curtain" can correspond to the smallest 9mm detection object, even if the smallest finger passes through, it can protect it in time!

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

P.S. If the optical fiber sensor is used, the distance between the optical axes can be reduced, but it still cannot reach the level of the safety light curtain. Another key point is that the cost of the optical fiber sensor is not low.

4【Affect production efficiency】

The "safety light curtain" has an automatic discrimination function. When the AGV trolley sends the workpiece into the dangerous area, the manipulator works as usual without affecting its efficiency; when the operator enters, it stops the operation to ensure the safety of the operator.

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

P.S. If the optical fiber sensor is used, the distance between the optical axes can be reduced, but it still cannot reach the level of the safety light curtain. Another key point is that the cost of the optical fiber sensor is not low.

4【Affect production efficiency】

The "safety light curtain" has an automatic discrimination function. When the AGV trolley sends the workpiece into the dangerous area, the manipulator works as usual without affecting its efficiency; when the operator enters, it stops the operation to ensure the safety of the operator.

Encoder|Transmitter|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

All in all, the "safety light curtain" is designed for the purpose of protecting people, so it is more safe, which is irreplaceable by other products.