Siemens PM250 SINAMICS G120 standard inverter

Siemens PM250 is a power module in the SINAMICS G120 standard inverter. Here is a detailed introduction about it:

Overview

The power output range of the PM250 power module is 5.5kW to 90kW, suitable for 3-phase 380V to 480V power grids. It adopts a modular structure design and has many new functions, setting new standards for general-purpose inverters in terms of safety and communication capabilities.

Features

Energy feedback: It can directly feed back braking energy to the power supply system, suitable for four-quadrant applications, without a brake chopper, which can achieve energy saving and improve system efficiency.

Rich control types: Supports multiple control types such as V/F, FCC, VC, SLVC, etc., which can meet different application requirements.

Hot-swap function: The module can be replaced while the system is running, that is, hot-swap, which is convenient for maintenance and upgrades and reduces downtime.

Safety functions: It has a variety of safety functions, such as safe torque off (STO), safe stop 1 (SS1), safe limited speed (SLS) and safe brake control (SBC), which comply with EN 954-1 Category 3 and IEC 61508 SIL2 standards to ensure the safety of personnel and equipment.

Technical parameters

Protection level: IP20, suitable for ordinary industrial environments.

Dimensions: There are a variety of frame sizes to choose from, corresponding to different power levels. For example, the frame size corresponding to 5.5kW/7.5kW power is C, with a size of approximately 189mm wide × 185mm deep × 334mm high.

Overload capacity: PM250 modules of different power levels have corresponding overload capacity, such as 7.5kW modules can last for 3s at 200% load, 57s at 150% load, and 240s at 100% load.

Applications

The PM250 power module is suitable for a variety of industrial applications, such as pumps, fans, compressors, conveyors, mixers, agitators, etc. It can also be used in continuous processes with high speed and torque accuracy requirements, as well as single-axis or multi-axis coordinated positioning applications. It is widely used in the automotive, textile, printing, packaging, chemical and other industries.