Omron 3G3MX2-A4075-V2 — Drive
SKU: 3G3MX2-A4075-V2USD 298.00
MX2-series 7.5 kW (10 HP) three-phase 400 V variable frequency drive with V2 firmware, sensorless vector and closed-loop vector control, built-in STO SIL3 safety, Modbus RTU, EMC filter, regenerative braking. 18.0 A ND / 23.0 A LD output. For industrial pumps, fans, conveyors, extruders.
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The 3G3MX2-A4075-V2 is Omron's MX2-series 7.5 kW (10 HP) three-phase 400 V variable frequency drive (VFD) with the V2 firmware generation, the workhorse mid-size VFD for industrial motor control applications. It drives three-phase AC induction motors at 0.1 to 590 Hz with ±0.5% speed accuracy using V/f, sensorless vector (open-loop), or closed-loop vector control with optional encoder feedback. The 18.0 A ND (Normal Duty) rating supports 7.5 kW motors with 150% overload for 60 seconds; the 23.0 A LD (Light Duty) rating supports 11 kW motors with 120% overload for 60 seconds (where the load is steady-state such as fans and centrifugal pumps).
Decoding 3G3MX2-A4075-V2 within the MX2 family
The 3G3MX2-@@@-V2 model code follows: A4 = 3-phase 400 V class (vs A2 = 3-phase 200 V, AB = single-phase 200 V); 075 = 7.5 kW (vs 007 = 0.75 kW, 015 = 1.5 kW, 022 = 2.2 kW, 040 = 4.0 kW, 055 = 5.5 kW, 110 = 11 kW, 150 = 15 kW); V2 = V2 firmware (vs V1 = first generation, EV2 = enhanced V2 with EtherCAT option support). The A4075-V2 codepoint thus decodes as 3-phase 400 V, 7.5 kW, V2 firmware.
V2 firmware vs V1 vs EV2 — what changed
The V2 firmware generation (introduced circa 2020) brings several improvements over the original V1: - PM motor open-loop control — V2 supports permanent-magnet (PM) motors without an encoder, using sensorless vector control. PM motors are more efficient than induction motors and are increasingly common in industrial applications. - Expanded Modbus register map — V2 doubles the number of readable/writable Modbus registers, supporting more detailed diagnostics and faster control loops. - Faster CPU — V2 has a ~2x faster processor, reducing the parameter-update latency and improving dynamic response.
Built-in STO SIL3 safety — no external safety relay needed
The 3G3MX2-A4075-V2 includes STO (Safe Torque Off) SIL3 per IEC 61800-5-2 and PLe per ISO 13849-1 as a built-in function. The STO is wired via two dedicated safety input terminals (typically labeled 'S+' and 'S-' or 'STO1' and 'STO2'); when both inputs are energized, the drive operates normally; when either input is de-energized (e.g., by an E-stop contact opening), the drive removes torque from the motor within 5 ms (the safe state). This is the highest level of drive-integrated safety — equivalent to a hardwired contactor-based E-stop, but without the contactor.
Key Features
- MX2-series 7.5 kW three-phase 400 V variable frequency drive
- V2 firmware generation
- ND rating: 7.5 kW / 18.0 A continuous output, 150% overload for 60 s
- LD rating: 11 kW / 23.0 A continuous output, 120% overload for 60 s
- Control methods: V/f, Sensorless vector, Closed-loop vector
- Built-in Modbus RTU via RS-485
- Built-in EMC filter
- Built-in STO SIL3 per IEC 61800-5-2, PLe per ISO 13849-1
- SKU: 3G3MX2-A4075-V2
- Series: 3G3MX2 V2 Multi-Function Compact VFD
- Voltage: 380-480 VAC
- I/O: 3 I/O
Best-Fit Applications
- Centrifugal pump control in a water-treatment skid — 7.5 kW 3-phase pump with PID loop on the VFD's analog input.
- HVAC supply / return fan control — 7.5 kW 3-phase fan with PID loop on the duct static-pressure sensor, the.
- Conveyor speed control in a packaging line — 7.5 kW 3-phase conveyor motor with master speed reference from the PLC's.
- Plastic extruder screw drive — 7.5 kW 3-phase extruder motor with torque-controlled sensorless vector, the VFD maintains constant torque at.
Buying Checklist
- Pick 3G3MX2-A4075-V2 for 7.5 kW 400 V 3-phase VFD with V2 firmware — workhorse mid-size industrial motor control
- Pick 3G3MX2-A4040-V2 for 4.0 kW 400 V 3-phase VFD — smaller motor loads
- Pick 3G3MX2-A4110-V2 for 11 kW 400 V 3-phase VFD — larger motor loads
- Pick 3G3MX2-A4055-V2 for 5.5 kW 400 V 3-phase VFD — slightly smaller than 4075-V2
- Pick 3G3MX2-A4150-V2 for 15 kW 400 V 3-phase VFD — larger motor loads
- Pick 3G3MX2-AB007-V2 for 0.75 kW 200 V single-phase VFD — single-phase input applications
Technical Specifications
| Model | 3G3MX2-A4075-V2 |
|---|---|
| Series | 3G3MX2 V2 Multi-Function Compact VFD |
| Type | 7.5 kW (10 HP) three-phase 400 V variable frequency drive, V2 firmware |
| Input Voltage | 3-phase 380-480 VAC ±10% (50/60 Hz) |
| Input Phase | 3-phase |
| Output Voltage | 3-phase 0 to input voltage (variable frequency) |
| Output Frequency Range | 0.1 to 590 Hz |
| Normal Duty (ND) Rating | 7.5 kW / 18.0 A continuous, 150% overload for 60 s |
| Built-in Communications | Modbus RTU via RS-485 (RJ45 port) |
| Optional Communications Cards | 3G3AX-MX2-ECT (EtherCAT), 3G3AX-MX2-DRT (DeviceNet), 3G3AX-MX2-PRT (PROFIBUS), 3G3AX-MX2-CMP (CompoNet) |
| Digital Inputs | 7 programmable (multi-function: start, stop, reverse, jog, multi-speed, etc.) |
| Digital Outputs | 2 programmable (1 relay SPDT 2 A, 1 open-collector 50 mA) |
| Analog Inputs | 2 (0-10 V / 4-20 mA selectable, plus -10 to +10 V for direction/bias) |
| Analog Output | 1 (0-10 V or 4-20 mA for motor frequency, current, output voltage, etc.) |
| Pulse Train Input | Yes (0 to 32 kHz; for follower / master-slave operation) |
Resources & Downloads
FAQ for 3G3MX2-A4075-V2
What's the difference between 3G3MX2-A4075-V2 and 3G3MX2-A4075-V1?
Both are 7.5 kW 400 V 3-phase VFDs in the MX2 family. The difference is the firmware generation: V1 (older, ~2014-2019) supports V/f and sensorless vector for induction motors only; V2 (newer, ~2020+) adds sensorless vector for PM (permanent-magnet) motors, expanded Modbus register map, faster CPU processing, more accurate autotune, and improved braking algorithm. For new installations, V2 is the right pick unless you have a specific need for V1 (e.g., to match existing V1 fleet for spares compatibility).
What's the difference between V2 and EV2 firmware on the 3G3MX2 VFD?
V2 and EV2 are both firmware generations for the 3G3MX2 VFD, with EV2 being the newest (introduced 2024). The key differences: (a) EtherCAT support — EV2 supports the 3G3AX-MX2-ECT EtherCAT option card, V2 does not. EtherCAT integration is critical for NJ-series machine controllers (NJ501-1400 etc.) and high-speed multi-drive systems. (b) Smart Active Parts — EV2 supports Omron's Smart Active Parts library for HMI integration (NB/NS series HMIs), V2 does not.
Can the 3G3MX2-A4075-V2 do closed-loop vector control with an encoder?
Yes — the 3G3MX2-A4075-V2 supports closed-loop vector control with an optional encoder feedback card. The encoder card is the 3G3AX-PG01 (line-driver differential encoder input) or 3G3AX-PG02 (open-collector encoder input). The card plugs into the option slot on the bottom of the VFD.
What is the STO (Safe Torque Off) function on the 3G3MX2-A4075-V2?
The 3G3MX2-A4075-V2 includes STO (Safe Torque Off) SIL3 per IEC 61800-5-2 and PLe per ISO 13849-1 as a built-in function. The STO is wired via two dedicated safety input terminals on the VFD's control board. When both inputs are energized (24 VDC applied to both), the VFD operates normally. When either input is de-energized (e.g., by an E-stop contact opening), the VFD removes torque from the motor within 5 ms — the safe state.
Similar Products
Explore related Omron models often viewed alongside this product.
