OMRON

Omron 3G3MX2 Series Compact Multi-function Inverter: Comprehensive Explanation

3G3MX2 Frequency Converter Physical Sample
I. Product Model and Series Description

1. Product Series: 3G3MX2 (MX2) Small Vector Frequency Converter
   The appearance in the picture is the universal shell of the Omron SYSTEMDRIVE 3G3MX2 series. The specific model distinguishes the voltage and power:
   A2: Single-phase 220V (0.1kW~2.2kW)
   A4: Three-phase 380V (0.4kW~11kW)
   Examples of complete models: 3G3MX2-A4015-Z (Three-phase 380V 1.5kW), 3G3MX2-A2004 (Single-phase 220V 0.4kW)
   Model Segmentation Explanation
   3G3MX2: Series code, MX2 represents small multi-functional vector frequency converter;
   A2/A4: Input power specification;
   The last four digits: Motor power compatible;
   ZV1/Z-CH: Hardware version, domestic standard model.
   Product Positioning
   Compact frequency converter for single-machine automation equipment, integrating vector high-torque, simple positioning, bus communication, and safety shutdown. Perfectly compatible with CP1L, NJ101, etc. Omron PLC to control motor speed and start/stop.
   II. Core Hardware and Electrical Performance Parameters
2. Drive Control Capability
   Sensorless Current Vector Control
   200% rated torque at 0.5Hz low-speed output, conveyor belts, mixing, lifting heavy-load equipment with low-speed does not slip;
   Dual control modes: Vector mode / V/F universal mode;
   Maximum output frequency: Standard 400Hz, high-frequency mode can reach 1000Hz, suitable for high-speed spindles, high-speed grinding motors.
3. Built-in Practical Functions
   Simple positioning function
   Supports pulse encoder input, can achieve short-distance indexing positioning (such as indexing disc, small conveying and transplanting), no need for additional servo;
   Built-in braking unit (for high-power models), external braking resistor can achieve rapid shutdown;
   Standard dual-channel safety shutdown input, complies with ISO13849 PLd safety level, emergency stop of the equipment is safe and compliant;
   Built-in PID closed-loop: Directly collects pressure, temperature, flow analog quantities, automatically adjusts motor speed, no PLC calculation required.
4. Communication Expansion (compatible with your complete Omron system)
   Standard comes with Modbus-RTU;
   Optional communication cards: EtherCAT, DeviceNet, CompoNet;
   Can be directly connected to NJ101, CP1L PLC, unified control of multiple frequency converters for synchronous speed regulation.
5. Operation Panel and Terminals
   Digital Display: Real-time display of frequency, current, voltage, fault code; RUN/STOP/ Up/Down keys for local manual speed regulation;
   Terminals supported: 0~10V, 4~20mA analog speed regulation, NPN/PNP digital terminals receive PLC start/stop signals;
   Fault Relay Output: Overload, overcurrent, overtemperature alarm fed back to PLC.
6. Protection and Environment
   Protection grade IP20, installed in the control cabinet;
   Operating temperature: -10℃ ~ +50℃; CE, UL industrial certification.
   III. Core Function
   Continuous speed regulation of three-phase asynchronous motors, replacing traditional pulley, gear speed change;
   Energy-saving operation of fans, pumps, etc. adjust speed as needed to reduce power consumption;
   Smooth startup of heavy-load equipment, reducing startup impact, protecting mechanical structure;
   Cooperate with PLC, photoelectric sensor (E3JK-DN11) to achieve automatic production line speed linkage control.
   IV. Mainstream Application Industries and Equipment Scenarios
7. Packaging Machinery (The largest usage)
   Stacking packaging machine, vertical bag-making machine, cutting machine, labeling machine, laminating machine Purpose: Belt feeding speed adjustment, film traction tension control, cutting synchronous speed adjustment.
8. 3C electronic automation equipment
   PCB conveying line, drying furnace fan, assembly line transplanting, small grinding spindle;
   Combined with CP1L PLC + E3JK photoelectric switch, realize automatic speed adjustment based on material presence/absence.
9. Material conveying and logistics equipment
   Belt conveying line, drum sorting line, small elevator, stacker;
   Heavy-load startup requirement relies on vector high-torque stable operation.
10. HVAC, fluid, water treatment equipment
    Circulating water pump, blower, sewage stirring motor, cooling tower fan;
    Built-in PID automatically adjusts speed according to liquid level and temperature, significantly saves electricity.
11. Woodworking, printing, textile equipment
    Woodworking cutting feeding machine, small printing cutting machine, textile tension winding motor;
    Smooth switching of high and low speeds, avoiding stretching and breaking of fabric and sheet materials.
12. Food processing equipment
    Mixing machine, filling conveying, sterilization furnace hot air circulation fan, sorting conveying belt.
    V. Complete set of Omron system matching
    Main control: Small CP1L PLC / High-end NJ101 motion controller;
    Signal acquisition: E3JK-DN11 photoelectric switch, CJ1W-AD011 analog module (temperature / pressure acquisition);
    Communication scheme: Add EtherCAT communication card, and share the bus with servo and remote IO for unified control;
    Human-machine interaction: NB series touch screen, set running frequency, view running current, fault record.
    VI. Distinction of the same series products
    3G3MX2 (this model): General small vector, with simple positioning, safety shutdown, main force of automation equipment;
    3G3MV: Basic economic type, only V/F control, without vector high-torque, simple speed regulation for fans and pumps;
    3G3RX: High-power heavy-load type (above 15kW), dedicated for lifting, large fans.
    Product series: OMRON E3JK universal square photoelectric switch series, belongs to diffuse reflective photoelectric sensor
    Model breakdown explanation
    E3JK: Omron economic square photoelectric switch universal series;
    D: Diffuse-reflective, diffuse reflection detection type (light emitted by the sensor hits the object and is reflected back to the receiving end to complete detection);
    N: NPN transistor output;
    11: Standard detection distance version, standard potentiometer adjustable sensitivity.
    II. Core electrical and hardware parameters
13. Power supply and output
    Working voltage: DC 10~30V, industrial standard DC power supply, can be directly connected to the PLC DC24V input terminal;
    Output type: NPN collector open circuit output;
    Load current: Maximum 100mA, can directly drive PLC input, small indicator light, intermediate relay coil;
    Connection definition (printed on the body):
    Brown: DC 24V positive power supply
    Black: NPN signal output line
    Blue: 0V negative ground line
14. Detection performance
    Detection method: Diffuse reflection (no need for reflective plate, directly detect the object)
    Standard detection distance: 0.1m~2m (can be continuously adjusted the detection distance by the top potentiometer)
    Detectable objects: opaque materials, metals, plastics, paper, paper boxes, workpieces, transparent / semi-transparent materials, adjustable sensitivity for adaptation
    Response speed: 500Hz, no loss of detection signal for high-speed assembly line materials
15. Structure and protection
    Shell: ABS flame-retardant square shell, standard installation holes, convenient bracket fixation;
    Protection level: IP64, dust-proof, splash-proof cutting fluid, cooling water, suitable for ordinary oil pollution environment in the workshop;
    Environmental temperature: -25℃ ~ +55℃, stable operation in hot and cold workshop;
    Certification: CE, general compliance for industrial equipment. 4. Key Functions
    Adjustable sensitivity potentiometer: A knob on the top of the device allows for seamless switching between close-range small parts and long-range large materials;
    Built-in overload and short-circuit protection, ensuring that the output short circuit will not damage the sensor;
    Resistant to strong light interference, not prone to false triggering even in the presence of workshop fluorescent lights or direct sunlight;
    Indicator lights: A red action indicator light, which stays on when an object is detected, facilitating on-site debugging and troubleshooting.
    III. Core Working Principle
    The sensor emits infrared light internally. When an object is present in front of it, the light is reflected back to the sensor’s receiving window, and the internal circuit conducts, outputting a low-level signal through the black output line. The PLC collects this signal and determines “material is in place / there is an object”; when there is no object blocking, there is no reflected light, and the signal is disconnected.
    IV. Main Application Industries and Scenarios
16. Conveyor line equipment (most commonly used)
    Detection of material arrival and absence in belt lines and roller lines; counting of cartons, plastic boxes, and packaging bags, and alarm for material shortage;
    Combined with CP1L and NJ series PLCs to achieve start-stop control of the conveyor line and sorting and diversion control.
17. Packaging machinery
    Stacking packaging machines, vertical sealing machines, labeling machines, and cutting machines:
    Detection of film presence, packaging material arrival, and label positioning, and automatic shutdown and alarm for material shortage.
18. 3C electronic automation equipment
    Syringe dispensing machines, screw locking machines, PCB board separation machines, and test fixtures:
    Detection of whether the tooling contains circuit boards, whether the workpiece is placed in the correct position, and prevention of empty machine operation.
19. Injection molding, die-casting, and stamping equipment
    Detection of whether products have fallen from the mold, whether the material head is present, and whether the workpiece has been discharged to the correct position, to prevent secondary mold closing and die pressing.
20. Logistics sorting and storage equipment
    Identification of courier packages, material box arrival detection, and material presence or absence in stacker machines, triggering sorting and switching actions.
21. Woodworking, textile, and food equipment
    Detection of wood board arrival, fabric breakage detection, and material presence detection at food filling stations.
22. Machine auxiliary detection
    Machine tool processing object discharge detection, coolant tank liquid level auxiliary detection, and door safety arrival confirmation.
    V. Reference for Different Models of Photoelectric Devices in the Same Series
    E3JK-DN11 (This model): Diffuse reflection NPN output, adjustable from 0 to 2m, general standard model;
    E3JK-DP11: Diffuse reflection PNP output, compatible with PNP input PLC;
    E3JK-RN11: Mirror reflection type (requires a reflective plate), maximum detection distance of 4m;
    E3JK-TR11: Reflective type (emitter + receiver separation), maximum 10m, dedicated for harsh environments with strong light and dust;
    E3JK-DS30M1: Short-distance diffuse reflection, only 0.3m, suitable for narrow workstations and detection of small parts.
    VI. Compatible Control System Configuration
    Directly connected to Omron’s full series of PLC digital input terminals:
    Small equipment: CP1L series PLC digital input;
    High-end entire line: NJ101 controller + NX-ECC203 remote IO module to collect signals;
    The detection signals are used for equipment logic interlock, counting, servo start trigger, and material shortage shutdown alarm.

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