ODP-12150-IN-I55 Variable Frequency Drive OPTIDRIVE PLUS 3GV 1.5kW 3-ф/380

The Invertek Optidrive Plus 3GV ODP-12150-IN-I55 is a 1.5 kW frequency inverter fed from a single-phase 220–240 V (1×220) supply with a three-phase output. The 12xxx code confirms single-phase input; rated output current is 7 A, Frame Size 1, IP55 enclosure. Sensorless vector control and V/f, built-in Modbus RTU over RJ11, up to 500 Hz, with motor autotune on first power-up. A handy option when the site has only a single-phase supply but the motor is three-phase — typical for small pump and ventilation sets. Frame Size 1 has no BR terminal — confirm the version for braking. The series is dated and discontinued; for a new 1.5 kW single-phase install compare with the Veichi AC10.

Invertek Optidrive Plus 3GV — a previous-generation vector drive in IP55 housing

The Optidrive Plus 3GV is the older, vector-capable line from UK manufacturer Invertek Drives — the predecessor of today's Optidrive E3/P2. Unlike the compact E2/E3 ranges, it offers not only scalar V/f but also sensorless vector control (rated "third generation" in the manual), with both speed and torque control modes. By default the drive runs in Voltage Vector mode and performs a motor autotune on first power-up, which reduces nuisance tripping at start.

Straight talk on series status

To be honest: the 3GV is discontinued (the User Guide targets firmware V3.10, dated 2007). Today it makes most sense as a like-for-like replacement for a unit already installed on a line, where you want to keep the footprint and control logic. For new builds, a current-generation drive is the smarter choice. If you need a turn-key drive from our stock, compare it with our Veichi AC10/AC310/AC01: similar 0.75–4 kW range, also vector control, but with current support and documentation.

Engineering notes worth knowing

• Range in this packet: 0.75–4 kW, all in the IP55 enclosed version (suffix -I55). IP55 on the Optidrive Plus 3GV is available up to 4 kW / 5 HP.
• Supply — mind the model code. The digits after ODP encode the input voltage: 12xxx and 22xxx = 1-phase 220 V (200–240 V), ODP3-xxxxx = 3-phase 220 V, 24xxx = 3-phase 400 V. The output is always three-phase.
• Braking: Frame Size 2 and above provide a BR terminal for an external braking resistor (built-in brake transistor). The smallest Frame Size 1 has no BR terminal — confirm the part number if you need dynamic braking.
• EMC: the 1-phase 230 V and 3-phase 400 V versions carry an internal EMC filter; for category C1 at 400 V the manufacturer recommends the external OD-Fx34x filter.
• Comms: built-in Modbus RTU over an RJ11 connector.
• Max output frequency up to 500 Hz (P1-01).

A practical tip: the 400 V three-phase models (24xxx) can also run from a single phase of the same voltage, but the output current then drops by 50% — this is the manual's "3 Phase drive on Single Phase Supply" mode. Don't confuse it with the genuine 1-phase 230 V 12xxx models.

Need help selecting or replacing a 3GV? Get in touch and we'll suggest a current equivalent for your motor and application.