Omron 3G3MX2-AB007-V2 — 0.75 kW VFD, 1-Phase 200 V
SKU: 3G3MX2-AB007-V2USD 168.00
MX2-series 0.75 kW (ND) / 1.1 kW (LD) inverter drive, single-phase 200 VAC input, three-phase 200 VAC output. V2 firmware with sensorless vector control, integrated EMC filter, Modbus RS-485, USB programming. Compact 68 mm wide.
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Product Overview
The 3G3MX2-AB007-V2 is the 0.75 kW single-phase-input variant of Omron's MX2-series multi-function compact inverter, designed for use where only single-phase 200-240 VAC mains is available (typical residential / light-commercial installations in EU/US/JP) but a three-phase 230/460 VAC motor is required. The drive accepts 200-240 VAC ±10 % at 50/60 Hz (single-phase only, NOT three-phase — for three-phase input use the 3G3MX2-A4007-V2 sibling) and outputs three-phase 200-240 VAC variable-frequency power to drive an induction motor at 0.75 kW (ND — Normal Duty, 150 % overload for 60 s) or 1.1 kW (LD — Light Duty, 120 % overload for 60 s).
Where the 3G3MX2-AB007-V2 sits in the MX2 family
The 3G3MX2 family splits along four axes: motor power (AB001/0.1kW, AB002/0.2kW, AB004/0.4kW, AB007/0.75kW, AB015/1.5kW, AB022/2.2kW, AB040/4kW), input voltage (AB = single-phase 200V, A2 = single-phase 200V with EMC filter, A4 = three-phase 400V, AB-EV2 = single-phase 200V with V1 firmware with EMC filter), output configuration (variable-frequency three-phase output), and firmware revision (-V2 = current production). The 3G3MX2-AB007-V2 (this SKU) is the 0.75 kW single-phase 200V input with V2 firmware; the V2 firmware is the current revision and replaces the earlier AB007 (V1 / pre-V2 firmware) and AB007-EV2 (V2 with EMC) variants. For 3-phase 400V installations, the 3G3MX2-A4007-V2 is the equivalent 0.75 kW three-phase version.
Single-phase to three-phase conversion and rectifier derating
The 3G3MX2-AB007-V2 is a true single-phase-input VFD — single-phase 200-240 VAC enters the rectifier stage, the rectifier outputs a DC bus at ~ 280-340 VDC, and the inverter section synthesizes three-phase variable-frequency output via IGBTs (insulated-gate bipolar transistors) at 200-240 VAC at 0-590 Hz. The single-phase rectifier is the limiting factor: at 0.75 kW motor output with single-phase 200V input, the input current is roughly 6 A (200V × 6A × √2 / 0.85 efficiency = 1000 W).
V2 firmware features: sensorless vector, PM motor control, integrated EMC filter
The V2 firmware revision (released circa 2018, supersedes the original -V1 firmware) added sensorless vector control that delivers 200 % of rated torque at 0.3 Hz for low-speed heavy-load applications (conveyors, hoists, mixers) — the key advantage over V/f control which cannot maintain torque below ~ 3-5 Hz without speed feedback. V2 firmware also added PM (permanent-magnet) motor control for brushless DC motors without requiring an absolute encoder — the drive reads the motor's back-EMF at standstill to determine rotor position. This is the firmware revision that brought MX2 in line with Siemens G120C / Allen-Baldor VS1SD feature parity.
Key Features
- MX2-series multi-function compact inverter drive
- Single-phase 200-240 VAC ±10 % input at 50/60 Hz
- Output: three-phase 200-240 VAC variable frequency, 0.5 to 590 Hz
- 0.75 kW / 1.1 kW rated motor output
- V2 firmware with sensorless vector control
- PM-motor open-loop control without encoder
- V/f control
- Integrated EMC filter — no external line filter needed under 100 A supply
- SKU: 3G3MX2-AB007-V2
- Series: 3G3MX2 MX2-Series Multi-Function Compact Inverter, V2 firmware
- Voltage: 200 TO 240 VAC
- I/O: 200 I/O
Best-Fit Applications
- Conveyor-belt speed control in a small packaging line — 0.75 kW three-phase induction motor driven by 3G3MX2-AB007-V2, run command from.
- Fan / blower speed control on an HVAC unit — 0.75 kW three-phase fan motor with single-phase 200V supply, PID.
- Pump pressure control in a water-treatment skid — 0.75 kW centrifugal pump with PID on pressure transmitter, sleep-mode function to.
- Mixer speed control in a food-processing batch reactor — 0.75 kW gearmotor with stainless-steel gearbox, sensorless vector for low-speed mixing.
Buying Checklist
- Pick 3G3MX2-AB007-V2 for 0.75 kW single-phase 200V VFD with V2 firmware — V1 firmware replacements / new designs
- Pick 3G3MX2-A4007-V2 for 0.75 kW three-phase 400V VFD — for industrial three-phase installations without single-phase supply
- Pick 3G3MX2-AB004-V2 for 0.4 kW single-phase 200V VFD — for smaller conveyor and pump motors
- Pick 3G3MX2-AB015-V2 for 1.5 kW single-phase 200V VFD — for slightly larger single-phase-supplied installations
- Pick 3G3MX2-AB022-V2 for 2.2 kW single-phase 200V VFD — maximum single-phase size before bridging concerns
- Add 3G3AX-MX2-ECT EtherCAT option board for high-speed network integration with an NJ / NX machine controller
Technical Specifications
| Model | 3G3MX2-AB007-V2 |
|---|---|
| Series | 3G3MX2 MX2-Series Multi-Function Compact Inverter, V2 firmware |
| Type | Sensorless vector / V/f AC inverter for 3-phase 200V induction motors |
| Motor Power (ND) | 0.75 kW |
| Motor Power (LD) | 1.1 kW |
| Rated Input Voltage | Single-phase 200 to 240 VAC ±10 % (180 to 264 VAC), 50/60 Hz |
| Number of Input Phases | 1-phase (NOT 3-phase — use A4 family for 3-phase input) |
| Rated Input Current | 8.2 A (ND) / 9.4 A (LD) at 200 VAC input |
| Rated Output Voltage | 3-phase 200 to 240 VAC (proportional to input) |
| Rated Output Current (ND) | 5.0 A |
| Rated Output Current (LD) | 6.0 A |
| Output Frequency Range | 0.1 to 590 Hz |
| Output Frequency Resolution | 0.01 Hz |
| Speed Control Range | 1:100 (sensorless vector), 1:20 (V/f) |
| Overload Capacity (ND) | 150 % for 60 s, 200 % for 3 s |
Resources & Downloads
FAQ for 3G3MX2-AB007-V2
What does the V2 firmware add over the original 3G3MX2-AB007 (V1)?
The V2 firmware revision added three significant features beyond the original V1: (1) sensorless vector control (open-loop vector control using the motor's electrical model to estimate rotor flux angle, delivering 200 % of rated torque at 0.5 Hz for low-speed high-torque applications like hoists and mixers — V/f control needs an encoder to do the same); (2) PM (permanent-magnet) motor open-loop control, including standstill start capability, for sinusoidal-back-EMF brushless motors without requiring an encoder (the drive reads the rotor's resting.
Can a single-phase-input VFD really drive a three-phase motor?
Yes — that's the entire purpose of the AB family (and the equivalent 240V series from other VFD vendors). The drive's input rectifier stage accepts single-phase AC and produces a DC bus (~ 280-340 VDC for a 200V input); the inverter section synthesizes three-phase AC at variable frequency from the DC bus via three pairs of IGBTs (one high-side and one low-side per phase).
What is sensorless vector control and when do I need it?
Sensorless vector control is a motor-control algorithm that estimates the rotor's magnetic flux angle from the motor's electrical model (winding resistance, inductance, and measured current/voltage). With the rotor angle known, the drive can control torque and flux independently — delivering rated torque at zero speed and holding the motor shaft against a constant load without rotating.
How do I wire Modbus RTU to the 3G3MX2-AB007-V2?
Wire the 3G3MX2-AB007-V2's RS-485 Modbus terminal block as follows: terminal SP (Send-Positive) → cable shield via twisted pair to PLC / HMI / master RS-485 device A terminal; terminal SN (Send-Negative) → cable shield via twisted pair to master RS-485 device B terminal; terminal RP (Receive-Positive) → not used on this drive (only on 3G3MX2 with dual RS-485 ports); terminal SN → connects to common ground; on multi-drop configurations (up to 32 slaves per master), add a 120 Ω termination.
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