This manual provides safety, installation, wiring and maintenance information for Siemens SINAMICS S120 control units and expansion system components.
The SINAMICS S120 Device Manual is intended for machine manufacturers, commissioning engineers and service technicians who work with Siemens drive systems. It covers safety warnings, required qualifications and the scope of the documentation.
The manual is organized into sections on system overview, control units, expansion system components, encoder system connections, cabinet design and electromagnetic compatibility, as well as detailed technical parameters and installation instructions for each module. This manual is written in Chinese.
| Maximum line‑voltage input (X521) | 100 V (line voltage) |
|---|---|
| Three‑phase power‑voltage input (X522) | up to 690 V AC |
| Analog input for temperature sensor (X520) | temperature sensor input |
The warning triangle marks personal‑safety warnings that could lead to death or serious injury.
Only qualified personnel who meet the required training and experience may operate or service the system.