Siemens G120L Variable Frequency Drive Power Module

Siemens G120L inverter agent, Siemens agent, Siemens inverters - The SINAMICS G120L variable frequency drive, designed with a modular approach, simplifies the application in AC motor control. Encoderless vector control offers precision suitable for industrial applications such as pumps, fans, and compressors. The power range of SINAMICS G120L is 280 kW to 630 kW, compatible with 3-phase AC power from 380 to 690 V, 50 Hz. Suitable for OEM manufacturers and factory builders, including: Siemens G120L inverter agent, Siemens agent, Siemens inverters

Industrial and building automation

Air Conditioning and Ventilation Applications

Tailor-made SINAMICS G120L with various power modules is particularly suited for industrial modernization, offering significant energy-saving advantages for both new equipment installation and modernization upgrades.

User-friendly debugging interface

• The operational unit features a text display and is equipped with comprehensive diagnostic functions (IOP).

• Smart Operation Panel (IOP) with a simple debugging wizard for specific applications

• Also, the STARTER debugging tool can be used to address complex applications

• Parameters can be saved on the SINAMICS SD card for copying settings and on-site debugging.

Speed Guide

The SINAMICS G120L offers two options to provide a parameter setting wizard: debugging for simple applications is facilitated through the integrated application wizard of the operating unit IOP.

Offer the following debugging guides:

• Quick debugging

Pumps, with/without PID control

• Fans, with/without PID control

• Compressors, with/without PID control

• PID Settings

• Boost Settings

For standard wiring diagrams, please refer to the documentation of the Operation Unit IOP. The STARTER debugging tool for complex applications provides graphical interface and dialog-based debugging wizards, which support the input of process value setpoints and the timing of setpoint adjustments.

Swap and set up motor grade control, sleep mode, and other process functions in a simple manner.

Advantages

Application

Energy-saving and efficiency-enhancing

SINAMICS G120L enhances energy efficiency across the entire process chain, reducing energy consumption to the minimum. It integrates relevant software and hardware functionalities in standard specifications.

Key features include:

• ECO mode, through closed-loop control mode V/f ECO and encoderless vector control

(SLVC) Automatically adjusts motor current based on the current load ratio, thereby locally reducing...

Achieve up to 5% energy savings in the loading range

• Features sleep mode, triggered by set values during the process

• Automatically switches to power operation (bypass mode) at rated speed

Achieve energy management through innovative technology

ECO Mode

• Automatically adjust the flux in the motor based on the current load ratio to achieve energy saving (for)

Reduced motor losses (due to reduced load range)

Sleep Mode

• Significant Energy Savings: Starts/ stops the drive based on current set values, avoiding excessive mechanical stress for higher efficiency

• Power Module PM330L with efficiency η of 98% achieved through the operational unit, enabling simple and specific application tuning and operation

• On-site debugging via an application-specific wizard, no knowledge of inverters required

• Unique Features: Use SINAMICS storage card (SD card) for parameter presetting and copying inverter data groups

• The data backup feature facilitates easy component replacement

• The control unit CU230P-2 integrates a USB interface, allowing for convenient debugging and diagnostics via the STARTER debugging tool.

• Offers flexible integrated functions for inverter tuning, diagnostics, and control

• PLC functions for local tasks can be flexibly applied to integrated function blocks → Eliminates additional external components

• Integrated with 4 PID controllers for distributed closed-loop control without an upper-level control system (PLC), enabling independent motor process control

• Equipped with 3 programmable digital timers for flexible control of selectable daily and weekly programs, suitable for a wide range of applications.

• Equipped with digitally isolated input, featuring independent voltage groups

• Equipped with insulated analog input

No potential drift will occur.

Meets EMC regulations without additional components, fulfilling the requirements of the process industry.

• Equipped with 230V relay output

Directly control auxiliary devices, such as throttling valves or valve actuators.

• PM330L Power Unit Standard Configuration X9 Terminal Block

- Input for external 24V DC power supply

Inputs for external alarms/ faults

Input for emergency braking/ emergency stop

- Control Main Contactor

- Completion of DC circuit pre-charging enables signal

Flexible modular system, capable of handling stringent environmental conditions

• Working environment temperature up to +50 ºC

• Power electronics and control electronics both feature modular construction

Quick and convenient replacement

• Protection ratings IP20/IP00, higher protection levels available upon container loading

Coating module, enhances moisture and dust resistance

• Plug-in Operation Panel

Prevent unauthorized access

- When using the IOP or BOP-2 operational panel, the protection rating is IP20

- The operation panel can be connected to the door by installing components on the cabinet door.

• Replacing a single component requires no disassembly of the entire power unit

The SINAMICS G120L drive system is suitable for all applications involving motion, conveyance, pumping, or compression of solids, liquids, or gases.

Especially the selection of the following applications:

Water Supply

Wastewater Treatment

Agricultural irrigation

Central Heating/Cooling

• Metering pumps and flushing pumps

Compressor

Fan

Modular design

The SINAMICS G120L features a modular design, consisting of the following components:

• CU230P-2 Control Unit

Power Module

• Operator Panel or Lid

CU230P-2 Control Unit

The CU230P-2 control unit employs various optional closed-loop control methods to control and monitor the variable frequency drive power module and the connected motor. This product supports communication with local controllers or monitoring devices. It can also be connected to all auxiliary equipment and external components (sensors, valves, contactors, etc.) related to process control. The CU230P-2 boasts strong communication capabilities, with the variable frequency drive communication interface protocol being defined during the selection of the control unit (V4.7 firmware or higher).

• CU230P-2 HVAC → USS, Modbus RTU, BACnet MS/TP, P1 Protocol

• CU230P-2 DP → PROFIBUS

• CU230P-2 PN → PROFINET，EtherNet/IP

Power module

Power module selection is based on power requirements and application scenarios. Utilizing pulse-width-modulated IGBT technology, it achieves highly reliable and flexible motor operation. Its protective features provide additional protection for both the power module and the motor. The power module's protection rating is IP20/IP00, suitable for installation inside control cabinets.

Operation Panel

• Intelligent Operation Panel (IOP)

Whether a beginner or a VFD expert, it's easy to operate. Equipped with a large text and graphic display, menu prompts, multi-language options, and an application wizard, standard drives can be easily adjusted, diagnosed, and locally controlled. The integrated application wizard guides users through the setup process interactively.

• Basic Operation Panel BOP-2

The pop-up menu function and two-line display make the inverter's debugging faster and more convenient. It can simultaneously display parameters, parameter values, and parameter filters, which means basic transmission debugging can be completed without printing a parameter table.

• Lid

When the operation panel is not needed, install a cover over the operation panel area on the power module. With the operation panel, tasks such as local debugging, control, and diagnostics can be easily and conveniently performed, and the entire data set of the variable frequency inverter can also be pre-set and copied.

Power components on the input side

SINAMICS G120L offers the following power components on the input side:

• Input Line Filter for PM330L Variable Frequency Drive Power Module

After being equipped with an additional input line filter, the power module will have superior RF interference resistance.

• Input Reactor for PM330L Power Module

Line reactors are used to filter the input current of frequency converters, reducing the harmonic components of the incoming current. With the reduction of current harmonics, the thermal load on the rectifier power components and the DC bus capacitors decreases, and the impact of harmonics on the power supply source is also lowered. The use of line reactors can

Enhance the lifespan of the variable frequency drives.

It is recommended to use power components such as fuses, circuit breakers/ motor start protection devices, and other incoming line components (the specifications of which comply with IEC standards). For more information on the listed fuses, circuit breakers/ motor start protection devices: