SINAMICS G120 Modularity

All benefits provided by the modularity concept used on the SINAMICS G120 system at a single glance

  • Flexible combinability: You can set up an individual frequency inverter for all universal applications at an adequate price performance ratio. The Power Modules (PM) and Control Units (CU) are designed for specific applications with suitable technical features, that means you only have to pay for the functionality required.

  • Convenient system migration and expandability: Due to the modular system which allows to upgrade Power Modules and Control Units independently from each other, these processes can be performed with reduced engineering efforts. This ensures high flexibility at any time.

  • Service-friendly SINAMICS system: In case of spare parts service, only the defective module is replaced instead of the entire system. Further, the energized Control Unit can be replaced without reconfiguration, which reduces the system standstill times.

  • Economic benefit: Cost reduction when purchasing, stockkeeping and in case of spare parts service.

Operator Panel (BOP-2) + Control Unit + Power Module
Operator Panel (BOP-2) + Control Unit + Power Module

Differentiation of Power Modules

Power Modules
3AC 380-480 V

PM230
IP20/IP55

PM240/
PM240-2

PM250

Performance

0.37 - 75 kW (IP20)
0.37 - 90 kW (IP55)

1/3AC 0.55 kW-4.0 kW
3AC 5.5 kW to 7.5 kW
3AC 0.37 kW to 250 kW

7.5 – 90 kW

Suitable for application

Pumps, fans, compressors
- Square-law characteristic
- No high starting torque,
- No high dynamic
loads (centrifugal pumps, radial and axial fans, radial compressors)

Pumps, fans, compressors
- With linear characteristic
- High starting torque, dynamic load and safety requirements

Conveyor technology
- Basic conveyors

Conveyor technology
- Conveyor belts with high starting torque and braking mode

Conveyor technology
As with PM240, additionally with mains feedback, with high braking energy
(e.g. on lifting gears and cranes)

Process technology
- Basic drives for mixers, mills and agitators

Process technology
- Mixers, breakers and agitators with breakaway torque.

Brake chopper

Not integrated

Integrated
with frame size
FSA to FSF,
optional Braking Module for frame size FSGX

Not required

Energy recovery

No

No

Yes

Integrated safety function

No

Yes (in combination with fail-safe Control Unit)

Yes (in combination with fail-safe Control Unit)

Can be combined with Control Unit

IP20:
All Control Units
IP55:
CU230P-2 only

All Control Units

All Control Units


Differentiation of Control Units

Control Units

CU230P-2

CU240B-2

CU240E-2

Type of control

U/f, FCC, ECO, vector control without encoder

Suitable for application

Pumps, fans, compressors
Including specific functions for the sectors heating, ventilation, air conditioning as well as water management

Pumps, fans, compressors
Convenient activation via terminal strip or PROFIBUS

Pumps, fans, compressors and conveyor technology

Standard applications such as CU240B-2 with more I/Os

Conveyor technology
Basic conveyors and
conveyor belt

Process technology
Mixers, breakers and agitators

Process technology
Extruders, granulators, pelletizers with higher torque accuracy and more I/Os

Including specific functions

no

No

Yes
Basic2) and Extended3) PROFIsafe

Number of I/Os

6DI/ 4AI
3DO/ 2AO

4DI/ 1AI
1DO/ 1AO

6DI/ 2AI
3DO/ 2AO

Bus systems

RS485 with
USS/
Modbus RTU,
BACnet MS/TP,
PROFINET, PROFIBUS,
CANopen

RS485 with
USS/ Modbus RTU, PROFIBUS

RS485 with USS/Modbus RTU, PROFIBUS,
PROFINET

2) STO 3) STO, SSL, SLS, SSM, SDI


Overview about the combinability of Power Modules and Control Units

Power Modules +
Control Units

PM230
IP55

PM230
IP20

PM240 / PM240-2

PM250

CU230P-2

x

x

x

x

CU240B-2

-

x

x

x

CU240E-2

-

x

x

x

CU250S-2

-

-

x

x