SINAMICS S150 Cabinet Units

The converter for demanding applications in the high power range

General description

SINAMICS S150 cabinet units have been designed for variable-speed drives in machine building and plant construction. They are particularly suitable for use with variable-speed drives with high requirements regarding dynamic response and speed accuracy, frequent braking cycles with high braking energies, and four-quadrant operation.
SINAMICS S150 offers high-performance speed control with high accuracy and dynamic response.
The cabinet units are available for an output range from 75 kW to 1200 kW.


Technical data overview

Brief overview

Electrical data

Supply voltages:
380 to 480 V 3AC
500 to 690 V 3AC

Output ranges:
110 to   800 kW
  75 to 1200 kW

Supply systems:


Line frequency:

47 to 63 Hz

Output frequency:

0 to 300 Hz

Control method:

Vector control with and without encoder, or V/f control

Fixed frequencies:

15 fixed frequencies plus 1 basic frequency, programmable

Skipped frequency bands:

4, programmable

Customer terminal block:

Digital inputs/outputs
Analog inputs/outputs
Inputs for motor temperature evaluation
Variable number

Communications interface:

PROFIBUS DP as standard

Braking mode:

4-quadrant operation possible as standard

Degree of protection:

IP20; optionally: IP21, IP23, IP54

Type of cooling:

Internal fan (forced air cooling)

Noise level:

≤ 78 dB (A) with 50 Hz line frequency

Cabinet system:

Rittal TS 8



Software functions:

- Smooth connection of converter to rotating motor
- Kinetic buffering
- Automatic motor identification for control optimization
- Programmable ramp-up/down times
- Ramp smoothing

Protection functions:

Undervoltage, overvoltage, earth fault, short-circuit, stall prevention, thermal motor protection, thermal converter protection

Safety functions:

SLS, SSM, SOS, SS2: sin/cos encoder required for cabinet and chassis units
(Integrated safety functions with drives)

Suitable motors: 

Induction motors


SINAMICS S150 are ready-to-connect converters in a standard control cabinet.
A comprehensive range of options permits adaptation to the respective requirements.
Different designs permit the power supply and motor connections to be located at the top or bottom. This results in high flexibility for the plant installation.
They are available with cabinet widths from 1400 mm upwards in intervals of 200 mm. The standard degree of protection of the cabinets is IP20. It can be optionally extended up to IP54.
The user-friendly AOP30 operator panel is fitted as standard in the cabinet door.

Configuration example
Configuration example with SINAMICS S150and SIMATIC S7

Customer benefits

  • Regenerative feedback as standard, therefore unrestricted four-quadrant operation possible

  • Significant energy savings, particularly with frequent braking cycles

  • Highly exact and highly dynamic mains supply through use of IGBTs; robust in the case of line voltage fluctuations

  • Injection of almost sinusoidal line current through fast current control

  • An innovative clean power filter means that low-frequency reactions on the system are almost negligible. Losses in the low-voltage distribution and/or mains transformer and in the power supply line resulting from harmonic currents are therefore also avoided

  • Possibility for compensation of reactive power (inductive or capacitive)

  • Maximum servicing friendliness with easy accessibility to all modules

  • Problem-free interfacing into automation solutions using a standard PROFIBUS interface and various analog and digital interfaces

  • Increase in plant availability through easy, fast replacement of individual modules and power components

  • Simple start-up and parameterization using interactive menus on the user-friendly AOP30 operator panel with LCD display incorporating graphics capability and plain text display

Typical applications

SINAMICS S150 is used wherever maximum requirements exist for process sequences with dynamic and reproducible procedures, e.g. :

  • Moving: Belt conveyors, cranes, test stands

  • Processing: Mechanical presses