The SINAMICS G120D distributed frequency inverters are modular frequency inverters for standard drives. Each SINAMICS G120D comprises two operative units – the Power Module and Control Unit.
Power Module PM250D with line and motor connections and Control Unit CU240D
Power Modules
The following Power Modules are available for SINAMICS G120D distributed frequency inverters:
PM250D Power Modules
PM250D Power Modules (0.75 kW to 7.5 kW/1.0 hp to 10 hp) have an innovative circuit design which allows line-commutated energy recovery back into to the line supply. This innovative circuit permits generated energy to be fed back into the supply system and, therefore, saves energy.
Control Units
The following Control Units are available for SINAMICS G120D distributed frequency inverters:
CU240D Control Units
The Control Unit performs closed-loop control functions for the inverter. In addition to control functions, the Control Unit can also perform other tasks which can be adapted to the relevant application by parameterization. A number of Control Units are available in different versions:
- CU240D DP
- CU240D DP-F
- CU240D PN
- CU240D PN-F
Supplementary System Components
Intelligent Operator Panel IOP Handheld
The IOP supports both entry-level personnel and drive experts.
Thanks to the large plain text display, the menu prompting and the Application Wizards, it is easy to commission, diagnose and locally control standard drives.
MMC memory card
The parameter settings for an inverter can be stored on the MMC memory card. When service is required, e.g. after the inverter has been replaced and the data have been downloaded from the memory card the drive system is immediately ready for use again. The associated slot is located on the rear of the Control Unit.
RS232 interface cable for communication with a PC
For controlling and commissioning an inverter directly from a PC if the appropriate software (STARTER commissioning tool from Version 4.1, SP1 and higher) has been installed.
USB interface cable for communication with a PC
For controlling and commissioning an inverter directly from a PC if the appropriate software (STARTER commissioning tool from Version 4.1.3 and higher) has been installed.
Connecting cable for the Control Units
Flexible plug-in cables to transfer data between the Industrial Ethernet participants or PROFIBUS participants, as well as to supply power to the Control Unit.
Connecting cable for the Power Modules
Connector sets to connect to the line supply and the outgoing motor feeder are available as accessories as well as pre-fabricated motor cables for connection to the motor.
Spare Parts Kit
A Spare Parts Kit is available which comprises small parts such as seals, caps, PROFIBUS address windows and screws.
Replacement fan
A replacement fan is available, which comprises a pre-mounted unit with cover, fan and screws.