Omron MX2 Variable Frequency Drive Instruction Manual
Omron MX2 Variable Frequency Drive
Omron MX2 Variable Frequency Drive
Omron MX2 Variable Frequency Drive
Omron MX2 VFD Instructions
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Omron MX2 Variable Frequency Drive Specifications
| Feature | Specification |
|---|---|
| Product Model | 3G3MX2 |
| Catalog Number | I570-E2-02A |
| Manufacturer | Omron |
| Device Type | Variable Frequency Drive (VFD) |
| Input Voltage Class (3-Phase) | 200 V Class |
| Power Range (3-Phase 200V) | 0.1 kW to 15 kW |
| Input Voltage Class (1-Phase) | 200 V Class |
| Power Range (1-Phase 200V) | 0.1 kW to 2.2 kW |
| Input Voltage Class (3-Phase) | 400 V Class |
| Power Range (3-Phase 400V) | 0.4 kW to 15 kW |
| Protection Enclosure | IP20 standard (IP54 models available) |
| Control Method | Sinusoidal Pulse Width Modulation (PWM) |
| Carrier Frequency | 2 kHz to 15 kHz |
| Output Frequency Range | 0.1 Hz to 400 Hz |
| Frequency Accuracy (Digital) | 0.01% |
| Frequency Accuracy (Analog) | 0.2% (at 25°C ±10°C) |
| Frequency Adjustment Resolution (Digital) | 0.01 Hz |
| Frequency Adjustment Resolution (Analog) | Maximum frequency / 400 |
| Overload Capacity (Constant Torque - CT) | 150% of rated current for 60 seconds |
| Overload Capacity (Variable Torque - VT) | 120% of rated current for 60 seconds |
| Acceleration/Deceleration Time | 0.01 to 3600 seconds |
| Efficiency at Rated Load | 89.5% to 96.6% (model dependent) |
| Logic Input Power Supply | 24 VDC, 100 mA maximum |
| Discrete Logic Inputs | 7 terminals (configurable sink/source), ON ≥18V, OFF ≤3V, 27VDC max, 5mA load |
| Pulse Train Input A (EA) | 32 kHz maximum |
| Discrete Logic Outputs | 2 open collector (50 mA max, 27 VDC max) |
| Alarm Relay Contact | 1c type (250 VAC, 2.5 A resistive; 30 VDC, 3.0 A resistive) |
| Analog Input (O) | 0 to 10 VDC (9.8 VDC nominal), 10 kΩ impedance |
| Analog Input (OI) | 4 to 20 mA (19.6 mA nominal), 100 Ω impedance |
| Analog Output (AM) | 0 to 10 VDC, 1 mA maximum |
| Pulse Train Output (EO) | 32 kHz maximum, 10 VDC, 2 mA maximum |
| Analog Reference (+10 VDC) | 10 VDC nominal, 10 mA maximum |
| Control & Relay Wiring Gauge | 0.2 to 1.5 mm² (AWG 24 to 16) |
| Operating Temperature (Ambient) | -10 to 50°C |
| Storage Temperature | -20 to 65°C |
| Humidity | 20 to 90% RH (non-condensing) |
| Vibration Resistance | 5.9 m/s² (0.6 G) from 10 to 55 Hz |
| Maximum Altitude | 1,000 m |
Omron MX2 VFD Details
The Omron MX2 Variable Frequency Drive is engineered for advanced motor control across diverse industrial applications. It offers a dual rating capability, accommodating both Constant Torque (CT) and Variable Torque (VT) loads. This flexibility allows for optimized performance and energy efficiency whether driving conveyors or pumps, simplifying selection for various machinery types.
Equipped with an integrated drive programming function, the MX2 provides considerable versatility. Users can implement complex logic directly within the drive, reducing the need for external PLCs in simpler applications. This embedded intelligence streamlines system design and offers more localized control over processes.
Connectivity is a strong suit, with RS485 Modbus RTU integrated as standard, enabling seamless communication with other industrial control systems. For broader integration, optional FieldBus communications are available, ensuring compatibility with a wide range of network protocols prevalent in modern factory automation environments.
For demanding applications, the MX2 boasts a remarkable 200% starting torque at 0.5 Hz without requiring encoder feedback. This high initial torque ensures robust starting performance for heavy loads, minimizing stalls and enhancing operational reliability even in challenging conditions. The drive also supports continuous 100% torque within a 1:10 speed range without motor derating.
Advanced motor control features include 16 programmable speed levels and a sophisticated PID control function. The PID controller allows for automatic adjustment of motor speed to maintain process variables, such as pressure or flow, at a setpoint, leading to stable and precise system operation. Password protection is also available to prevent unauthorized parameter changes.
The MX2's control capabilities extend to sensorless vector control (SLV) and closed-loop control with encoder feedback, offering flexibility for both open-loop and high-precision applications. It includes an Auto-tuning function to optimize motor parameters, usable whether the motor is stopped or rotating, ensuring peak performance.
Specific models (November 2009 onwards) enhance functionality further, supporting control of permanent magnet (PM) motors, which are gaining popularity for their high efficiency. These models also feature a user-friendly 5-line LCD display with a copy function for easy parameter transfer and a fault history with a real-time clock for detailed diagnostics.
Safety is paramount, with the MX2 incorporating the Safe Stop (STO) function, certified to ISO 13849-1 (PLd) and EN 61800-5-2 standards. This ensures that in an emergency, the drive safely removes power to the motor, meeting stringent safety requirements for machinery. Electronic thermal protection safeguards both the motor and the inverter against overload.
Additional features like current suppression, an energy-saving mode for variable torque loads, and Automatic Voltage Regulation (AVR) for stable output during input voltage fluctuations contribute to overall system stability and efficiency. A selectable fan ON/OFF function extends the service life of the drive components by reducing wear during standby periods.
The MX2 offers comprehensive braking capabilities, including both resistor-less braking (up to 100% for small models) and enhanced braking with an optional resistor (up to 150%). Variable DC braking is also available. Optional accessories such as a USB port for PC communication, a remote digital keypad, and an integrated braking chopper further enhance its adaptability.
The drive's design considers ease of maintenance and reliability. It adheres to strict environmental conditions, operating from -10 to 50°C and handling vibrations up to 0.6 G. Furthermore, it boasts significant certifications, including UL508C, CSA-C22.2 No. 14, and various EC Directives for machinery, low voltage, and EMC, underscoring its global compliance.
Frequently Asked Questions (FAQs)
Can't find the answer you need? Here are some frequently asked questions about the Omron MX2 Variable Frequency Drive, and we answer them below.