SINAMICS G120Variable frequency drive (VFD)
Modular general-purpose converter: Control Unit (CU240B-2/CU240E-2/CU250S-2) plus Power Module (PM240-2, PM250…). Fieldbus variants for PROFINET, PROFIBUS, USS/Modbus RTU and CANopen; PROFIdrive telegrams, Safety Integrated; commissioning with Startdrive or the IOP-2 panel.
- Manufacturer
- Siemens
- Product line
- SINAMICS
- Device type
- Variable frequency drive (VFD)
- Communication
- PROFINETPROFIBUSModbusCAN / CANopen
- Engineering software
- TIA Portal (STEP 7 Basic/Professional)
- Models / series
- CU240B-2, CU240E-2, CU240E-2 PN, CU240E-2 DP, CU250S-2, PM240-2, PM250
Documentation · 5
SINAMICS G120 converter with CU240E-2 Control Unit (FW 4.7 SP14)
Current operating instructions: installation, commissioning with Startdrive/IOP-2, interfaces and macros, fieldbuses, alarms and faults.
Link verified 2026-10-02
SINAMICS G120, G120P, G120C, G120D, G110M Fieldbuses Function Manual (V4.7 SP10)
PROFIdrive telegrams over PROFINET/PROFIBUS, EtherNet/IP, USS, Modbus RTU and CANopen: control/status words, parameter access, examples.
Link verified 2026-10-02
Safety Integrated for SINAMICS G120, G120C, G120D and G115D
Safety functions STO, SS1, SLS, SDI, SSM: commissioning, acceptance test, fail-safe control via PROFIsafe or terminals.
Link verified 2026-10-02
G120 CU240B-2 / CU240E-2 — List Manual (parameters, faults and alarms)
Complete parameter list, function diagrams and the list of faults (F…) and alarms (A…) with causes and remedies for firmware 4.7.
Link verified 2026-10-01
G120 with CU240B-2 / CU240E-2 — Operating Instructions
Installation, wiring of control terminals, commissioning with macros, fieldbus control (PROFIdrive telegrams), setpoint channel, protection functions and alarm handling for firmware V4.7 SP10.
Link verified 2026-10-01
Diagnostics · 363
- A01009 — CU: Control module overtemperature
- A05000 — Power unit: Overtemperature heat sink AC inverter
- A07012 — Drive: Motor temperature model 1/3 overtemperature
- A07910 — Drive: Motor overtemperature
- F01910 — Fieldbus interface setpoint timeout
- F07011 — Drive: Motor overtemperature
- F07016 — Drive: Motor temperature sensor fault
- F07807 — Drive: Short-circuit/ground fault detected
- F07900 — Drive: Motor blocked
- F07901 — Drive: Motor overspeed
- F08501 — PROFINET: Setpoint timeout
- F30001 — Power unit: Overcurrent
Knowledge · 8
- Variable frequency drive — basics and key parameters
- VFD control methods: V/f, vector, DTC, torque and current
- VFD control — terminals and fieldbus
- DC link, braking resistors and regeneration
- Safe Torque Off (STO) and drive safety functions
- VFD faults and warnings — diagnostics
- SINAMICS drive families: V20, G120, G120C, G120X, S120 and V90
- VFD commissioning step by step