Riken Optech
The usage of Safety Devices (Safety Light Curtain), Malfunction detector and Load Monitor
Riken Optech safety technology which use the combination of Safety Devices (Safety Light Curtain), Malfunction detector and Load Monitor to provide maximum safety to the machine operator.
Riken Optech safety technology was first applied to the safe operation of press machines. Such technology requires products that are of superior quality and efficiency, so that the safety of machine operators and all of your factory assets are guaranteed.
Safety Devices for Presses
RSL230-Stage2
Direct Projection Type Safety Light Curtain
RSL230-Stage2 is designed to increase productivity while ensuring personnel safety 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
- Positive protection with 20mm pitch optical axes.
- Built-in self-check circuit.
- Ultra-slim design requires minimum installation space and allows large workplace.
- Wide variations of the sensors with 8 to 64 optical axes are available.
- Error-mode Monitor shows the conditions of the system with LED.
- Unaffected by ambient light with modulated light system.
- Significantly improved safety with various added functions.
- Installation is fast and simple.
Specifications
Light Sensor
| RSL230-140 – 1260 | |
| No. of Optical Axis | 8 – 64 axes |
| Protection Height | 140mm – 1,260mm |
| Optical Beam Spacing | 20 mm |
| Minimum Object Sensitivity(MOS) | 30 φ |
| Detective Distance | 0.2m – 6m or 0.2m – 2.5m (short scan type) |
| Response Time (incl.Control Box) | 15 ms – 35 ms or less (ON→OFF) |
| Power Supply | 24 VDC |
| Current Consumption (max) | 220mA – 260mA |
| Optical Element | Infrared LED (wavelength 870nm) |
| External Diagnosis Function | Available |
| Temperature Range | Working:-10-55℃(non freezing) / Storage:-30-70℃ |
| Humidity Range | 35-95%RH |
Control Box
| RSL230-CBS | RSL230-CBW | |
| Power Consumption | +24V / 15W | +24V / 30W |
| Power Supply (Control Box) | 100 VAC – 240VAC 50/60Hz | |
| Output Contact | 1Ax2, 1Bx1 | |
| Output Contact Rating | 250VAC, 6A(Cosφ = 1) | |
| Temperature Range | Working:-10-55℃(non freezing) / Storage:-25-85℃ | |
| Humidity Range | 35-85%RH | |
SEⅡ
Reflection Type Safety Light Curtain
The Ultimate Reflection-type system
Introducing the SEⅡ, the ultimate reflection-type Safety Light Curtain, remain a long-selling product for some decades, which using our accumulated safety engineering expertise and the latest in electro-optical technology, we are able to further address our customers’ safety concerns.
Features
- Built-in self-check circuit.
- Achieved the dramatic reduction against the ambient light.
- Reflection system allows for an expanded working area.
- Reflection system allows for simple beam alignment.
- Reduces maintenance.
- Installation is fast and simple.
Specifications
| No. of Beams | 6 – 12 |
| Protective Height | 200 – 440 mm |
| Beam Spacing | 40 mm |
| Power Supply | AC100±10% |
| Output Contact | 1A, 1B (separate) |
| Output Contact Rating | 230 VAC, 7A (Cosφ=1) |
| Response Time | Less than 20 ms |
| Power Consumption | 10 – 15 W |
| Temperature Range | -5℃ – 50℃ |
SDM3
Stop-Time Measuring Device
A requisite measuring system for the performance diagnosing of the press machines. Non-contact measurement is realized by adopting magnetic sensor.
Features
- The quick stop time, inertial descending value and the speed of the slide movement are measured.
- By adopting non-contact type measurement systems, it can be universally applied for any kinds of the machines. (Turret-punch press is also applicable.)
- Even a machine with small inertial descending value is also measureable.
- The measurement position is recognized automatically. (Stroke length is less than 340mm.)
- Lightweight and compact design. Three models in difference size are provided.
Specifications
| Model | SDM3 |
| Power Supply | AC100±10% |
| Temperature Range | 0 – 60℃ |
| Output Contact | 2A 1B |
| Power Consumption | 20W |
| Measurable Speed(SPM) | 600 spm (Max.) |
| Applicable machines | The slip distance of the slide is less than 300mm.（regardless of the stroke length) |
| Sensor LE3-100 | 90 mm |
| Sensor LE3-200 | 180 mm |
| Sensor LE3-340 | 300 mm |
Malfunction Detector
MICRON-3
Multi-Functional High Resolution Automatic Die Monitoring System
MICRON3 is a High Resolution Slug Detector for press operation that monitors the position of bottom dead center (BDC) every stroke using high performance proximity sensor. Setting the upper and lower monitoring limits based on the reference value calculated automatically by the sampling, when the detected value exceed the monitoring range, the device sends a stop signal immediately to the press machine.
This device adapts Mean Value(Rolling Average) Monitoring Method and Absolute Value(Bench Mark) Monitoring Method, thus enable to perform more accurate and stable detection.
Features
- High accuracy with 0.1μm resolution.
- Simultaneously monitors rolling average and benchmark.
- Fault counter function incorporated.
- Automatic sensor calibration incorporated.
- Various sensors are provided.
Specifications
| ●Power Supply and Output section (only MIC3-B) |
Power supply | AC100-240V 50/60Hz |
| Power consumption | 15W or less | |
| Output contact | 1A, 1B (emergency output,auxiliary output) | |
| Output contact capacity | 250VAC or less, max.5A Cosφ=1 | |
| ●Detection section | No.of channels | 2 channles (Max.8, modification required) |
| Detection range | 0.8mm-1.8mm | |
| Repeatig accuracy | 1μm (0.1μm at high sensitivity) | |
| Monitoring range | Average ±99μm | |
| Sensor type | Proximity sensor for slug detector | |
| ●Display section | Display | 7-segment LED |
| ●Others | Backup | Semiconductor memory, Backup period: 10 years or more |
| Maximum speed | 2,400 spm | |
| Temperature range | Working:-10℃-50℃(non freezing) / Storage:-20℃-75℃ | |
| Humidity range | 10-85%RH (at wet bulb temperature of 29℃ or less, non condensation) |
PMC-3
The Flagship model consolidating functions of existing detectors
Corresponds to various applications with the condensed functions.
PMC-3 is the flagship model of our malfunction detector, designed with collecting our know-how based on a long years’ experience and high-end technologies, and enhancing the further expandability with newly adding large liquid crystal display unit. PMC-3N features various new functions and high-operability fully to meet diversified manufacturing process, and also promote quality control and improvement of productivity.
Features
- Enhance the functionality with additional units on demand.
- Counter unit is easy to see by the large-sized LED display.
- Large Liquid-Crystal Display Unit (CLT) enables production management.
- CLT unit employs large color liquid crystal and enables wide range appreciation.
- All 6 detection channels can be used with the individual timing in each.
Specifications
| ●Power Supply and Output section | Power supply | 100-240 VAC, 50/60Hz |
| Power consumption | 10W or less | |
| Output contact | 1A, 1B (emergency stop output, auxiliary output) | |
| Output contact Capacity | 250 VAC or less, max.3A Cosφ=1 | |
| ●Detecting section | No.of channels | 6 channels |
| Sensor input | 6 channles | |
| Timing signal input | Independent timing signal for 6 channels and common timing signal for 1 channel (switchable from NPN to PNP and vice versa) | |
| ●Other Inputs | External reset, muting input and auxiliary input(switchable from NPN to PNP and vice versa) | |
| ●Display section | 6 X 2 two color LEDs: 6 pcs.for display of signal input, 6 pcs.for display of fault detection(stop state) and 1 pc.for display of all bypass | |
| ●Communication section (link terminal, 8P modular) | RS-485 | |
| Baud rate | 76,800bps | |
| Data length | 8 bits | |
| Stop bit | 1 bit | |
| Parity | Non parity | |
| ●Others | Response time | Max. 1 ms for each input |
| Temperature Range | Working:-10℃-50℃(non freezing) / Storage:-20℃-75℃ | |
| Humidity range | 10-85%RH (at wet bulb temperature of 29℃ or less, non condensationn) | |
| ●Options | Counter unit, Liquid crystal color IO unit | |
PCS-12
Programmable Rotary Cam Switch
To promote automation, laborsaving and producing high quality products, positioning detection, especially angle detection is very important, and additionally, high precision, certainty and high operability are required for producing high quality products. Our PCS-12 has all requirements. Installs a sensor on the revolving cam shaft of the press machine, and decides the reference point, then sets the operating position dialogically by the LCD monitor. (It can be set at 1 degree.) By the incorporated microcomputer, when the revolving cam shaft reaches to the reference point, PCS-12 outputs ON/OFF signal.
Features
- High operability with a large and highly legible liquid crystal display.
- Teaching function allows the user to set the angle while checking operating condition.
- Memorized program Function enables to store and recall up to 41 types of angel setting.
- Adaptability to high speed operation at 1 degree in resolution up to 3000 SP.
- Stopping-time measurement function employed, that assures to help for safety press operation
Specifications
| ●Power Supply and Output section |
Power supply | 100-240 VAC, 50/60Hz |
| Power consumption | 15W or less | |
| Output contact | Contact “B”, 1 circuit(fault output) | |
| Output contact capacity | 240 VAC or less, max.5A Cosφ=1 | |
| Cam output | NO polarity, 1 circuit(AC-SSR), common for all channels | |
| Output capacity | 240 VAC or less, max.1A Cosφ=1 | |
| Cam/transistor output | Output type : Open collector output (load:1200mA max. at less than 40VDC.) |
|
| ●Detection section | Type | Optical rotary encoder (360PR) |
| Detection accuracy | 1 degree(max.3000spm) | |
| ●Display section | Display | LCD display with back light, blue mode(320 X 240 pixels) |
| Temperature compensation circuit built-in | Built-in | |
| Contrast control | External | |
| ●Others | Backup | Semiconductor memory, Backup time:10 years or more |
| Maximum SPM | 3000 | |
| Temperature range | Working: -10℃-50℃(non freezing) / Storage: -20℃-75℃ | |
| Humidity range | 10-85%RH (at wet bulb temperature of 29℃ or less, non condensation) |
RDM-4
Strain Monitoring Die Protection System
Only to press the setup button, RDM sets the best monitoring range automatically.
RDM is epochal new product designed and developed to make precise detection for slug by jamming die hitherto difficult to detect. The unit checks delicate changes accurately at a time slug is produced or other changes occur and stop the press machine promptly. An analog wave form produced at each stroke of the press machine is detected by a sensor mounted on the frame of the press machine and operationally processed with a built-in microcomputer to ascertain right or wrong. using with our slug detector MICRON-3, more effective detection is available.
Features
- Easy to use.
- Start operating with the simple push of the setup button after changing dies.
- Interactive LCD dramatically simplifies operation.
- Sensors are mounted to the press, eliminating the need to adjust sensors at every die change.
- RDM’s unique “Area under the curve comparison method” enable to detect floating slug, slug pulling for jamming dies hitherto difficult to detect.
- Supports a wide range of fault detection, double sheet feeding, material end, mis-feeding, etc.
Specifications
| ●Device Proper | Model | RDM |
| Power supply | 100-240V AC ±10% 50/60Hz | |
| Power consumption | 15W | |
| Output | Relay contacts 1A,1B(240V AC, 5A) CosΦ=1 | |
| Analog output | 0-5V (left/right load wave) | |
| Response time | Display 600spm, stopping ability 2,000spm | |
| Display | Numeric value equivalent to working load | |
| Sensitivity | 0.01mV/V（24X10-6 strain, 50% load) | |
| Temperature drift | -5℃-+60℃, 0% | |
| ●Sensor | Model | LUM-420A |
| Measuring range | ±600μst | |
| Sensitivity | 1mV/μ (400μ strain) | |
| Temperature drift | 0.1% FS/℃ | |
| Working temperature range | -10℃-+80℃ | |
| Outside dimensions | 30(D) X 68(W) X 10(H) mm | |
| Mounting pitch | 40mm ±0.1mm |
LOAD MONITOR
PLA-2N Stage2
2-Channel Load Monitoring System
Never fail to catch the eccentric load, the necessities of the quality control
PLA-2N Stage2 has the function of detecting the press load with two(2) pieces of strain gauge sensors. It displays the accurate load during press processing, and output stop signals and stops a press machine immediately when abnormality is detected. Monitoring cannot be ignored when there are eccentric loads for each stroke, and furthermore, load monitoring extends the life of dies, prevents friction and wear of presses, also promotes quality control and rationalization.
Features
- Easy to know the balance of loads applied to the left and right sides of the press, and to know improper balance, load center, etc., it facilitates die maintenance and quality control.
- As a overload protector, it prevents from the damage of the dies by detecting double hits, mis-feed, change of material thickness etc., and estimates die regrinding intervals.
- By knowing the suitable load for products, the selection of the press is facilitated.
- The detector can be used to simultaneously set absolute value comparison (set value of upper/lower limits) and comparison with the value of the previous time.
- The digital LED display is easy to read, and the bar display shows the left load and the right load in percentage.
Specifications
| ●Power Supply and Output section | Power supply | 100-240 VAC, 50/60Hz |
| Power consumption | 15W or less | |
| Output contact | 1A・1B(emergency stop output/auxiliary output) | |
| Output contact capacity | 250VAC or less, 5A or less Cosφ=1 | |
| ●Detection section | No.of channels | 2 channels |
| Detection range | 100kN or more, available for press up to 40,000kN in capacity | |
| Repeatability | 0.5% of device press capacity | |
| Sensor | Strain gauge type 4-bridge strain sensor | |
| ●Display section | Display | 1/2 inch 7-segment red LED, five-digit per channel |
| ●Others | Backup | With semiconductor memory, backup time:10 years or more |
| Maximum SPM | 1,000 spm | |
| Temperature range | Working: -10℃-40℃(non freezing) / Storage: -20℃-55℃ | |
| Humidity range | 10-85%RH (at wet bulb temperature of 229℃ or less, non condensation) |
PLA-4N Stage2
4-Channel Load Monitoring System
PLA-4N Stage2 has the function of detecting the press load with four(4) pieces of strain gauge sensors. It displays the accurate load during press processing, and output stop signals and stops a press machine immediately when abnormality is detected. Monitoring cannot be ignored when there are eccentric loads for each stroke, and furthermore, load monitoring extends the life of dies, prevents friction and wear of presses, also promotes quality control and rationalization.
Features
- Easy to know the balance of loads applied to the left and right sides of the press, and to know improper balance, load center, etc., it facilitates die maintenance and quality control.
- As a overload protector, it prevents from the damage of the dies by detecting double hits, mis-feed, change of material thickness etc., and estimates die regrinding intervals.
- By knowing the suitable load for products, the selection of the press is facilitated.
- The detector can be used to simultaneously set absolute value comparison (set value of upper/lower limits) and comparison with the value of the previous time.
- The digital LED display is easy to read, and the bar display shows the left load and the right load in percentage.
Specifications
| ●Power Supply and Output section | Power supply | 85-264 VAC, 50/60Hz |
| Power consumption | 75W or less | |
| Output contact | 1A・1B(emergency stop output / auxiliary output) | |
| Output contact capacity | 250VAC or less, 5A or less Cosφ=1 | |
| ●Detection section | No.of channels | 4 channels |
| Detection range | 100kN or more, available for press up to 90,000kN in capacity | |
| Repeatability | within 1% of device press capacity/Within 100-800% of channel capacity | |
| Sensor | Strain gauge type 4-bridge strain sensor | |
| ●Display section | Display | 1/2 inch 7-segment red LED, five-digit (per channel) |
| ●Others | Backup | With semiconductor memory, backup time:10 years or more |
| Maximum SPM | 2,000 spm | |
| Temperature range | working: -10℃-40℃(non freezing) / Storage:-20℃-55℃ | |
| Humidity range | 10-85%RH (at wet bulb temperature of 229℃ or less, non condensation) |
RLG-2/4
Multifunctional Load Monitoring System
Multiple alarm functions incorporated high performance automatic Load Monitoring System
RLG has the function of detecting the press load with a strain gauge. It displays the accurate load during press processing, and output stop signals and stops a press machine immediately when abnormality is detected. Multiple detection modes incorporated cannot be ignored when there are eccentric loads for each stroke, and furthermore, load monitoring extends the life of dies, prevents friction and wear of presses, also promotes quality control and rationalization.
Features
- Improvement of labor efficiency:
Multiple load monitoring function. - Easy to read digital display:
The tonnage of the load to be processed at each side is displayed digitally for every channel and the total tonnage of the pressurized load is displayed at the center. The operator can check the pressurized load during the stamping and get a good grasp of the load balance from the pressurized load tonnage displayed for each channel. It is instrumental to the protection of the press machine and dies. - Three-Selector Changeover Function:
Three monitoring functions (Trend Alarm, Adaptive Alarm and Area Alarm) can be designated by changing over the switches. One of the monitoring functions suited for the operation can be used. - Simple Quality Control:
The load variation during the stamping is displayed on the LED bar, which allows the operator to easily check the deviation from the common difference. Green and orange lights will come on when the value is within the upper and lower limits; a red light will come on if the value exceeds the upper and lower limits. The operator can check for any variation during the operation (when the press machine is running) hence, it is useful for quality control purposes. - It will detect double stamping and feeding errors:
It will stop the press machine to prevent losses when it detects an unusual load generated by double stamping or a feeding error.
Specifications
| ●Electrical Specifications | Power supply | 90-264 VAC |
| Current consumption | 100mA-220 VAC / 115mA-200 VAC | |
| No.of channels | 2 channels(RLG-2) / 4 channels | |
| A/D conversion method | 12 bit | |
| Normal mode rejection | 50db at 2,000 gain (between + innput and – input) | |
| Calibration | Manual calibration | |
| Isolation | 500VDC continuous between inputs and chassis ground | |
| ●Environmental Specificatins | Working temperature | 0℃-60℃(32°F-140°F) |
| ●Input Specifications | Input type | Strain gauge (350Ω, 700Ω) |
| Input impedance | 1K | |
| Low range gain | Max. gain 1176 | |
| Cal. resistor(140k-ohm) | Min. gain 54 | |
| High range gain | Max. gain 6959 | |
| Cal. resistor(1meg-ohm) | Min. gain 347 | |
| Display resolution | Up to 0.1% of full scale | |
| Overall module accuracy | 1% of full scale | |
| A/D sample rate | 100 microseconds | |
| ●Output Specifications | Alarm relay | Dry contact (10A 240VAC) |