RIKEN OPTECH CORPORATION

Safety Devices and Peripheral Equipment for Press MachinesCatalogs

Safety Devices for Presses

Direct-projection Safety Light Curtain for Press MachinesRPX

Prevent Press Accidents with the Highest Level Optical Safety Sensor

Features

Multiple Blanking functions to improve work efficiency while ensuring safety

Through safe design and specifications compliant with international standards, we have exhaustively pursued higher
levels of safety and realized higher work efficiency. This direct-projection safety device for press machines
can be flexibly adapted to various work content and enables dramatically improved work efficiency


Fixed blanking functions and Floating blanking function to improve work efficiency while ensuring safety


When a stationery object (e.g., device or material) is blocking certain beams during normal operation, these beams
can be deactivated to enable operation of the press.

Function

Floating blanking

In normal sensor operation, a signal to stop the press is output if one beam is blocked, but using this function,
a stop signal is only sent when two or more beams are blocked. This is useful when it is necessary to move objects
in the sensor monitoring area

Fixed blanking

When a stationery object (e.g., device or material) is blocking certain beams during normal operation, these beams
can be deactivated to enable operation of the press.

* A special controller is required to use the blanking functions.

Combination of Fixed Blanking and Floating Blanking

In addition to the fixed blanking function, there is a built-in dual optical axes blanking (floating) function. When
multiple areas of beams are interrupted by obstacles(part of facility, materials and workpieces),combined use
of two types of blanking function deactivate the interrupted beams and realize the efficient press operation
without losing safety.

3 modes of Blanking Function

1. Fixed Blanking Mode

Multiple optical-axes interrupted area can be set as blanking area (up to 5 areas)

2. Fixed blanking mode with permissible optical axis

It is possible to move the monitoring area up to ± 1 optical axis above or below the fixed blanking setting area.

*When using allowable optical axis function

  • To prevent influence of passing through of the materials and workpiece
  • To prevent influence of shaking of the feeder or the conveyor by vibration of the press machine

Even in the above case, It is possible to continue work without interference when blocking certain beams within the
permissible optical axes range.

3.Combination of Fixed Blanking and Floating Blanking

When part of the equipment or workpiece is present in the sensor monitoring area, safe work is possible by blanking
setting the corresponding area optical axes. It can correspond not only to fixed parts but also to movable parts.

 

Here is the point !

Visualize monitoring area and blanking area with LED display of dedicated control box


The front panel of the Blanking dedicated control box shows the state of the sensor’s total optical axes.

The LED display can grasp which part of the area is set blanking at a glance.

Blanking area easy to setup


Easy blanking is possible by using only the key switch in the dedicated control box.

*Regarding the blanking setting key, please manage by the administrator such as press

work chief administrator.

Three types of blanking function enable safe and efficient work

  • Fixed blanking function
  • Fixed blanking function using allowable optical axis
  • Blanking function combined protection with floating function

    *Setting of mode can be easily changed by using the control box.

Applicable as an effective safety measure for press brake

Not affected by the interference in production, such as the followings.

  • Material supply device
  • Removal device such as robot
  • Ejecting device such as conveyor
  • Shooters for ejected materials and scrap

Others

Features

  • The highest level safety has been realized based on a failsafe design that utilizes mutual checking performed
    by two CPUs equipped in the receiver, and redundancy of the signal-processing circuit and output circuit.

    * Complies with international standard IEC61496-1/2 and North American standard UL61496-1/2.
  • The sensor is equipped with a Bypass function and Floating function
  • *(Optional control box is required to use some functions)
  • Diverse line-up to cope with various operating environments
  • Select the optimal safety light curtain according to the installation environment, type of press and work content.
  • Error indicator – Check details of errors with a single glance
  • The number of lit LEDs indicates the reception status, enabling simple alignment of beams.
  • Mounting brackets that significantly reduce influence of vibration
  • Mutual interference prevention

Safety Device Selection Criteria (Protective Range)

  • Mechanical press:(Die height + Stroke length) or more
  • Hydraulic press:(Full daylight range) or more

    *Note that the necessary protective range varies according to the installation conditions.
  • In the case that the top beam height at the time of installation is 1,400mm or less from the floor surface→(Die
    height + Stroke length + Insufficient length) or more
  • In the case that the top beam height at the time of installation is more than 1,700mm from the floor surface

    →(Die height + Stroke length – Excess length) or more  *Lowest beam position is assumed to be the top surface
    of the bolster.

Specifications

  • Standard specificationsRPX414 Series/RPX425Series
  • Floating specificationsRPX414Series
  • Floating specificationsRPX425Series

Standard specificationsRPX414 Series/RPX425Series

RPX414-□□□X4

RPX414-□□□X2
RPX425-□□□X4

RPX425-□□□X2
No. of beams 26~234 13~125
Protective height 225~2097mm 240~2480mm
Beam spacing 9mm 20mm
Minimum object sensitivity

(MOS)
14mm 25mm

Floating specificationsRPX414Series

RPX414-□□□X4FL1

RPX414-□□□X2FL1
RPX414-□□□X4FL2

RPX414-□□□X2FL2
RPX414-□□□X4FL3

RPX414-□□□X2FL3
No. of beams 26~234 26~234 26~234
Protective height 207~2079mm 189~2061mm 171~2043mm
Beam spacing 9mm 9mm 9mm
Minimum object sensitivity

(MOS)
23mm 32mm 41mm

Floating specificationsRPX425Series

RPX425-□□□X4FL1

RPX425-□□□X2FL1
No. of beams 13 ~ 125
Protective height 150~1755mm
Beam spacing 20mm
Minimum object sensitivity

(MOS)
45mm

Common Specifications

Detection distance

X4-type:0.2~9m(Protection Height : 1620mm max.), 0.2~7m(Protection Height :1640mm min.)

X2-type:0.2~4m
Response time ON→OFF:10ms~27.5ms, OFF→ON:40ms~110ms

*When Control Box is connected:ON→OFF:20ms~37.5ms, OFF→ON:60ms~130ms
Input voltage 90VAC~240VAC(When Control Box is used)(Power Supply for Emitter/Receiver only:24VDC±20%)
Power consumption Emitter:76mA~165mA, Receiver:68mA~142mA

(Control Box : CB6-S:16.8W, CB6-W: 30W)
Output contact(CB6) 2A, 1B Contact Capacity : 250VAC 3A
Key switch output contact(CB6) 1A, 2B Contact capacity:220VAC 0.7A(Inductive Load), 1.0A(Resistance Load)
Light source Infrared LED(Wavelength : 870nm)
Effective aperture angle X4-type:Within±2.5°

X2-type:Within±5°(when detection distance 3m or more)
External diagnostic function When Test-input line or LA-terminal (in case with Control Box) is 9~24V:Emitter OFF(sink current : 3mA or less),
When Test-input line or LA-terminal (in case with Control Box) is 0~1.5V or open : Emitter ON
Ambient temperature During operation:-10~55℃(No freezing), During storage : -30~70℃
Ambient humidity During operation:35~85RH(No freezing), During storage : 35~95RH
Ambient light intensity Incandescent light : 3,000lx or less(light intensity at receiver surface), Sunlight : 10,000lx or less(light
intensity at receiver surface)
Insulation resistance 20Mohm or more(for 500VDC)
Withstand voltage 1,000VAC(Sensor), 1,500VAC(Control Box), 50/60Hz, 1min.
Degree of protection Emitter/Receiver : IP65, Control Box:IP54(IEC60529)
Vibration resistance Malfunction Durability:10~55Hz, Double-amplitude:0.7mm, X,Y,Z directions : 20 sweeps
Shock resistance

Malfunction Durability:100/S
2 [10G], X,Y,Z directions 1,000 times

Standard compliance(sensor only) X2-type:IEC61496-1-type ESPE & IEC61496-2-type2 AOPD IEC61508-1~-7(SIL1)、ISO13849-1:2006 Cat.2 PLc

X4-type:IEC61496-1-type ESPE & IEC61496-2-type AOPD IEC61508-1~-7(SIL3)、ISO13849-1:2006 Cat.4 Ple

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