Functions specific to pumps and fans are already integrated
● Automatic restart Application restarts after a power failure or a fault
● Flying restart Variable speed drive is switched in while the motor is running
● ECO mode Automatic adaptation of the motor current to the actual load conditions, e.g. for applications with a low dynamic response and a constant speed setpoint
● Motor staging For applications that require simultaneous operation of between 1 and 4 motors depending on load, e.g. closed-loop control of highly fluctuating flow volumes
● Hibernation: Drive is started/stopped in accordance with the actual setpoints
● 4 integrated PID controllers For controlling the speed of the drive as a function of pressure, temperature, flowrate, level, air quality and other process variables
● Essential Service Mode Special operating mode of the variable speed drive that enhances the availability of the drive system in the event of a fire
● Multi-zone controller
– Control of a zone with up to 3 sensors for pressure or temperature, or
– Control of two independent zones, each with one sensor
● Bypass mode When the setpoint is reached or a fault occurs, there is a changeover to mains operation
● Programmable time switches (x 3 units)
● Real-time clock For time-dependent process controls, e.g. temperature reduction for heating control at night
● Freely programmable logical function blocks For simulating simple PLC functions
● Motor monitoring with and without temperature sensor (via PTC, KTY and ThermoClick sensor)
– Overcurrent protection
– Torque monitoring
– Overvoltage protection (Vdc_max controller)
● Braking function using a DC brake

Connections and interfaces
● Fieldbus interface of the CU230P-2 Control Unit optionally with
– RS485/USS, Modbus/RTU, BACnetMS/TP, P1 (standard delivery)
– PROFIBUS DP
– CANopen
– PROFINET IO
● 2 x LG-Ni1000-/Pt1000 interface for direct connection of temperature sensors
● 230 V relay for direct connection of auxiliary equipment
● Isolated digital inputs with a separate potential group to prevent potential transfers
● Isolated analog inputs for EMC-compliant installation without the need for additional components

Energy efficiency
● Optimized drive topology
– Limit values for harmonic currents and THD compliant with IEC/EN 61000-3-12 are fulfilled without the need for additional measures (Rsce ≥ 120)
– Reduced line harmonics
– No reactors → lower weight & smaller installation space requirements
– Lower apparent power → smaller cable cross-sections
● Implemented energy-saving functions

User-friendliness
The following functions and resources ensure a high degree of user-friendliness:

● Simple application-specific commissioning wizards "on board" the IOP-2-BT operator panel (Intelligent Operator Panel)

● Clear text scripts for integration in the STARTER commissioning tool for more complex applications

● Operator panel with clear text display and extensive diagnostics functions (IOP-2-BT)

● SINAMICS micro memory card (MMC)/SIMATIC memory card (SD card) for storing parameter settings, cloning and local commissioning

● Plug-in terminal blocks for supply cables and motor cables for frame sizes A to C

Desigo connection
G120P is compatible with Desigo systems from Version 4.1, and can be integrated via Modbus and USS.

Software
A license to use the STARTER commissioning software is included in the G120P BT bundle. You can find the latest version at www.siemens.com/starter.

STARTER is also included in the SINAMICS G120P PC inverter connection KIT 2 as an accessory or can be ordered separately. See Accessories.