Unidrive SP / SPM — general-purpose and modular AC drives 0.37 kW – 1.9 MW, 200–690 V, with multi-pulse and active rectifiers

Country: Poland · Model: Unidrive SP / SPM

Unidrive SP is an AC drive platform from 0.37 to 132 kW, and the modular Unidrive SPM line reaches 1.9 MW. Supply is 3×230, 3×400, 3×575 and 3×690 V, and the drives control induction motors and AC servo motors. The drive is used in high-power and non-standard systems, including those with energy regeneration.

Power: Unidrive SP (panel-mounted) 0.37–132 kW; SPM (modules) 45 kW – 1.9 MW; SP Free Standing 90–675 kW
Supply: 3×230, 3×400, 3×575, 3×690 V; for 12-pulse schemes 2×3×230 … 2×3×690 V
SPM composition: SPMA (AC→AC), SPMD (DC→AC), SPMC (controlled rectifier), SPMU (uncontrolled rectifier)
Rectifiers: 6-, 12-, 18-, 24-pulse, Active Input with regeneration

Request a quote All specifications

Technical specifications

Power	Unidrive SP (panel-mounted) 0.37–132 kW; SPM (modules) 45 kW – 1.9 MW; SP Free Standing 90–675 kW
Supply	3×230, 3×400, 3×575, 3×690 V; for 12-pulse schemes 2×3×230 … 2×3×690 V
SPM composition	SPMA (AC→AC), SPMD (DC→AC), SPMC (controlled rectifier), SPMU (uncontrolled rectifier)
Rectifiers	6-, 12-, 18-, 24-pulse, Active Input with regeneration
Control	open-loop and closed-loop vector, RFC; 100 % torque at 0 Hz; servo mode
Feedback	14 types: incremental, SinCos, absolute encoders, resolver
Other	common DC bus, parallel connection of modules, built-in braking controller, IP20 modules, Smartcard, SyPTLite PLC

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The line is made in three versions: a single cabinet-mounted module for 0.37–132 kW, a set of SPM power modules from 45–90 kW to 1.9 MW, and the ready-made cabinet Unidrive SP Free Standing for 90–675 kW. The modes are sensorless vector control and closed-loop control with 14 types of feedback, including incremental, SinCos and absolute encoders and resolvers; in closed loop, 100 % torque is available already at 0 Hz. There are autotuning, speed and torque control, more than 700 parameters, an object-based PID controller and a Regen mode. SPM includes the SPMA and SPMD inverters and the SPMC (controlled) and SPMU (uncontrolled) rectifiers in IP20 enclosures. The modules are connected in parallel, joined by a common DC bus, and used to build 12-, 18- and 24-pulse schemes with 2×3×230 … 2×3×690 V supply, or an Active Input scheme for full regeneration.

How to choose

First determine the power. Up to 132 kW a single Unidrive SP is suitable, for 90–675 kW there is the ready-made cabinet SP Free Standing, and above that and for non-standard systems SPM is assembled. If mains harmonics are critical, choose a 12-, 18- or 24-pulse rectifier, and for regeneration the Active Input scheme. For a compact servo axis up to 7.5 kW the Digitax HD is better.

Request a price and lead time

Unidrive SP / SPM — general-purpose and modular AC drives 0.37 kW – 1.9 MW, 200–690 V, with multi-pulse and active rectifiers. We reply within one business day.

Or email office@usk.ua or call +38 (044) 339-50-20.

FAQ

What power range do Unidrive SP and SPM cover?

The single Unidrive SP covers 0.37–132 kW, the cabinet SP Free Standing 90–675 kW, and the SPM modules reach 1.9 MW.

How many feedback types does Unidrive SP support?

Fourteen, that is, 14 types, including incremental, SinCos and absolute encoders and resolvers. In closed loop the drive gives 100 % torque at 0 Hz.

How can harmonics from an AC drive be reduced?

SPM modules are assembled into 12-, 18- or 24-pulse rectifiers. The Active Input scheme completely eliminates harmonics and returns energy to the mains.

What supply voltage does Unidrive SP need?

Three-phase 3×230, 3×400, 3×575 or 3×690 V. For 12-pulse schemes the supply is 2×3×230 … 2×3×690 V.

Can SPM modules be connected in parallel?

Yes, for large motors the modules are connected in parallel, and through the common DC bus the braking energy of some drives feeds others.