The Omron E3X-MDA series introduces a new generation of 2-channel fiber sensors, designed for space-saving and high-performance detection in industrial applications. These amplifiers boast the thinnest profile in the industry, with each channel occupying only 5 mm, making them ideal for gang-mounting in tight spaces.
Function Description:
The E3X-MDA series are 2-channel fiber optic amplifiers that provide two types of control output: AND/OR. This allows for flexible detection logic with a single sensor, eliminating the need for separate compact PLCs or sensor controllers for basic logic operations. The amplifiers utilize a red LED (650 nm) as their light source and incorporate Omron's advanced APC (Auto Power Control) function for stable, long-term performance. This function, combined with new 4-element LEDs, compensates for LED deterioration over time, ensuring consistent detection accuracy. The circuit design also features excess light capacity, allowing for high stability regardless of whether the APC circuit is ON or OFF.
Optical communication capabilities prevent mutual interference when multiple amplifiers are mounted together, supporting up to 9 amplifiers (18 channels) in a single setup. The units offer a power tuning function, which is a first in digital amplifiers, allowing users to adjust the incident light level to a target value for optimal performance. They also include a zero-reset function for the digital display and an initial reset to return settings to defaults.
Important Technical Specifications:
- Channels: 2-channel
- Light Source: Red LED (650 nm)
- Supply Voltage: 12 to 24 VDC ±10%, ripple (p-p) 10% max.
- Power Consumption: 1,080 mW max. (45 mA max. at 24 VDC)
- Control Output: Load power supply voltage: 26.4 VDC; open collector; load current: 50 mA max.; residual voltage: 1 V max.
- Circuit Protection: Reverse polarity for power supply connection, output short-circuit
- Response Time:
- Super-high-speed mode: 130 µs (operation and reset)
- Standard mode: 1 ms (operation and reset)
- High-resolution mode: 4 ms (operation and reset)
- Sensitivity Setting: Teaching or manual method; light emission power and reception gain, digital control method
- Timer Function: Selectable from OFF-delay, ON-delay, or one-shot timer.
- Ranges: 1 ms to 5 s (1 ms increments), 20 ms to 200 ms (10 ms increments), 200 ms to 1 s (100 ms increments), 1 s to 5 s (1 s increments).
- Automatic Power Control (APC): High-speed control method for emission current.
- Mutual Interference Prevention: Possible for up to 9 Units (18 channels).
- Display: Two large, easy-to-read displays for incident level, threshold, percentage, peak levels, and channel information. Display orientation can be switched (normal/reversed).
- Ambient Illumination (receiver side): Incandescent lamp: 10,000 lux max.; Sunlight: 20,000 lux max.
- Ambient Temperature:
- Operating: -25°C to 55°C (1-2 Amplifiers), -25°C to 50°C (3-10 Amplifiers), -25°C to 45°C (11-16 Amplifiers) (no icing or condensation)
- Storage: -30°C to 70°C (no icing or condensation)
- Ambient Humidity: Operating and storage: 35% to 85% (with no condensation)
- Insulation Resistance: 20 MΩ min. (at 500 VDC)
- Dielectric Strength: 1,000 VAC at 50/60 Hz for 1 minute
- Vibration Resistance (destruction): 10 to 55 Hz with a 1.5-mm double amplitude for 2 hrs each in X, Y and Z directions.
- Shock Resistance (destruction): 500 m/s², for 3 times each in X, Y and Z directions.
- Enclosure Rating: IEC 60529 IP50 (with Protective Cover attached)
- Weight (packed state): Approx. 100 g (prewired cable models), Approx. 55 g (standard connector models).
- Materials: Case: Polybutylene terephthalate (PBT); Cover: Polycarbonate (PC).
Usage Features:
- Space Saving: The E3X-MDA's ultra-slim design (5 mm per channel) allows for significant space savings (approx. 50%) compared to existing products, making it ideal for installations with limited room.
- AND/OR Control Output: Provides flexible control logic directly from the amplifier, simplifying system design and reducing the need for external logic controllers.
- Flexible Control with Mobile Console: The Mobile Console (E3X-MC11-S) allows for handheld operation and configuration of the fiber head, even when separated from the amplifier unit. This facilitates easy setup and adjustment in various environments.
- Power Tuning Function: The industry's first power tuning in a digital amplifier enables precise adjustment of incident light levels to a target value, optimizing detection for specific applications.
- Easy-to-Read Displays: Two large displays provide clear visibility of incident levels, thresholds, and other settings, enhancing user experience and simplifying monitoring.
- Teaching Methods: Offers various teaching methods for setting thresholds, including manual setting, maximum sensitivity, and teaching with/without a workpiece, allowing users to select the most suitable method for their application.
- Key Lock Function: Prevents accidental changes to settings by disabling key operations, enhancing operational security.
- Zeroing Digital Display: Allows users to reset the incident light level on the digital display to zero, providing a baseline for measurements.
- Mounting Flexibility: Amplifier units can be gang-mounted onto a DIN track, and an end plate (PFP-M) is available to prevent movement due to vibration.
- Fiber Connection: Features a lock button for easy and secure connection/disconnection of fiber units.
Maintenance Features:
- Stable Long-Term Performance (APC Function): Omron's APC function and 4-element LEDs ensure stable detection over extended periods by compensating for LED deterioration, reducing the need for frequent recalibration.
- Mutual Interference Prevention: Optical communications between units prevent interference, maintaining reliable operation even when multiple amplifiers are closely mounted.
- EEPROM Writing Error Detection: The amplifier detects and indicates EEPROM writing errors (ERR/EEP flash), allowing users to initialize settings and restore proper operation.
- Protective Cover: The amplifier unit includes a protective cover that should always be kept in place to safeguard the unit.
- Initial Reset: All settings can be returned to their original default values, simplifying troubleshooting and re-configuration.
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