Siemens SINAMICS PM240-2 Power Module 1.1kW

Technical Overview

Compact IP20 Power Module (FSB) for SINAMICS G120, offering 1.1kW LO / 0.75kW HO, 1/3AC 200-240V input, with integrated braking chopper.

Key Features

Input Voltage: 1/3AC 200-240V (+10/-10%), 47-63Hz.
Output Low Overload (LO): 1.1 kW (1.50 hp) for 150% 3s, 110% 57s, 100% 240s.
Output High Overload (HO): 0.75 kW (1.00 hp) for 200% 3s, 150% 57s, 100% 240s.
IP20 / UL open type protection.
Compact Frame Size B (FSB) for space-saving installation.
Built-in braking chopper for controlled deceleration and energy management.
Operates in ambient temperatures from -10°C to +50°C (HO) and -10°C to +40°C (LO).
Requires a SINAMICS Control Unit (CU) and Panel; approved for Firmware Version V4.6 and higher.

Technical Specification Matrix

Parameter	Value
Input Voltage	1/3AC 200-240V (+10/-10%), 47-63Hz
Output Power (Low Overload)	1.1 kW (1.50 hp)
Output Power (High Overload)	0.75 kW (1.00 hp)
Rated Current (Low Overload)	6.00 A
Rated Current (High Overload)	4.20 A
Max Output Current	9.00 A
Pulse Frequency	4 kHz
Output Frequency (V/f control)	0 - 550 Hz
Output Frequency (Vector control)	0 - 200 Hz
IP Rating	IP20 / UL open type
Ambient Temperature (Operation LO)	-10 °C to 40 °C
Ambient Temperature (Operation HO)	-10 °C to 50 °C
Number of Phases (Input)	1 / 3 AC
Number of Phases (Output)	3 AC
Physical Weight (kg)	2.9
Dimensions L x W x H (cm)	18.5 x 11.4 x 36.5

Industrial Applications

1. Precision Conveyor Systems in Manufacturing

This power module can precisely control the speed and torque of conveyor belts in manufacturing lines. The 1.1 kW Low Overload (LO) capability is suitable for continuous duty, while the High Overload (HO) rating (0.75 kW with 200% for 3s) handles short, intense loads during start-up or sudden changes. The integrated braking chopper allows for quick and controlled stops, essential for precise positioning and safety in automated material handling.

Problem Solved

Ensures smooth, precise, and responsive control of conveyor motors, reducing wear and tear, improving production efficiency, and providing controlled stopping for safety.

Variable Frequency DriveMotor ControlConveyor SystemsBraking ChopperLow OverloadHigh OverloadTorque Control

2. Industrial Pump or Fan Control in HVAC/Water Treatment

For pumps and fans in HVAC systems or water treatment plants, this power module offers efficient speed control of 1/3AC 200-240V motors up to 1.1 kW. The ability to vary output frequency from 0-550 Hz (V/f control) allows for energy savings by matching pump/fan speed to demand, rather than constant full-speed operation. The IP20 rating is suitable for installation within protected control cabinets in non-hazardous environments.

Problem Solved

Optimizes energy consumption and extends equipment lifespan by allowing precise speed adjustment of pumps and fans, rather than on/off control or throttling, which is inefficient.

Variable Speed DriveEnergy EfficiencyHVACPumping SystemsFan ControlV/f ControlIP20

3. Small Machine Tool Spindle Control

The SINAMICS PM240-2, when paired with a control unit, can manage the spindle motor of a small machine tool (e.g., a drill press or a small milling machine). The High Overload (HO) capacity of 0.75 kW (with 200% for 3s) provides the necessary peak torque for cutting operations, while the precise vector control (0-200 Hz) allows for accurate speed regulation for different machining tasks. The built-in braking chopper aids in rapid deceleration of the spindle, improving cycle times and safety.

Problem Solved

Provides precise speed and torque control for small machine tool spindles, enabling versatile machining operations, faster cycle times, and enhanced safety through controlled deceleration.

Spindle ControlMachine ToolsVector ControlHigh OverloadBraking ChopperPrecision Machining