r-PA Series Safety Light Curtain is designed to protect machine operators and plant personnel from hazards associated with moving machinery with fail-safe control reliability. In operation, r-PA extends a collimated “Curtain of Light” in front of hazardous areas. If a worker’s hand interrupts the “light curtain”, a signal is sent to the “stop” circuit of the machine. r-PA is designed with fail-safe circuitry, if any component within the system fails, a stop command is sent to the press, disabling it until the failure is corrected.
Features
- Self-diagnosis function at power-up
At power-on, self-diagnosis is performed for about 1 second
When no abnormality is found, the sensor immediately starts to operate normally. - Error-mode Monitor
When an error arises, its cause is indicated with LED flashing patterns. - Mutual-interference Preventive Function
When 2 sensors are so close to be mutual-interference, it’s prevented with making mutual-interference
preventive connection. - Ambient-light Diagnosis Function
With modulated light system, it’s mostly unaffected by ambient-light
Also, it turns to be lock-out state when detecting external abnormal light. - External Diagnosis Function (Emitting Stop)
Stops emitting of the emitter forcibly.
It’s effective when pre-operation check of the safety system. - Both-Side Protection
Control box (option) is selectable from one-side and both-side types.
The both-side type enables to control 2 pairs of emitters and receivers simultaneously.
Specifications
| Model | r-PA-□□□ |
|---|---|
| No. of Beams | 16~64（protection height: 300~1260mm, at 160 mm intervals) |
| Beam Spacing | 20mm |
|
Minimum Object Sensitivity (MOS) |
30mm |
| Detection Distance | 0.2~8 m |
| Response Time | 15~35ms (Depending on the length of the Emitter/Receiver) |
| Supply Voltage | Power supply to emitter/receiver: 24VDC, ±20% (ripple p-p10％or less) |
| Power Consumption |
172mA~316mA (Depending on the length of the Emitter/Receiver) |
| Light Source | Infrared LED（wavelength: 870nm） |
| Control output (OSSD) | PNP transistor output ×2、Load current 300 mA or less |
|
Inversion output （non-safety output) |
PNP transistor×1、Load current 300 mA or less |
| Input Voltage | ON voltage：+24VDC OFF voltage：0V |
| Effective Aperture Angle | ±5° or less when detection distance is 3m or more |
| Ambient Temperature | During operation:-10~55℃（not to freeze）：during storage：-30~70℃ |
| Ambient Humidity | During operation：35~85%RH（not to freeze）：during storage：35~95%RH |
| Ambient Light Intensity |
Incandescent lamp: 3,000 lx or less (on light receiving surface) Sunlight： 10,000 lx or less (on light receiving surface) |
| Insulation Resistance | 20 MΩ or more（with DC500V megger) |
| Withstand Voltage | AC1000V 50/60Hz for 1 minute |
| Degree of Protection | Emitter/receiver：IP65 |
| Vibration Resistance | Malfunction Durability：10~55Hz、double amplitude 0.7 ㎜、20 sweeps in each of X, Y and Z directions |
| Shock Resistance | Malfunction Durability：100 m/s2、{10G}、1000 cycles in each of X, Y and Z directions |