This document is a manual for the SINUMERIK 840D sl NCU controller, including system overview, application planning, safety information, description, operating and display elements, interfaces, dimension drawings, mounting, connections, technical data, spare parts/accessories, and appendix.
This manual is intended for manufacturers of machine tools, project engineers, electricians, installers, and maintenance personnel who need to install, commission, and service the SINUMERIK 840D sl NCU controller. It includes safety information, system overview, and application planning.
The document covers description of the controller, operating and display elements, all interface options (PROFIBUS, PROFINET, Ethernet, USB, digital I/Os), dimension drawings, mounting instructions, wiring and connection details, technical data, and a list of spare parts and accessories.
| Protection class | I |
|---|---|
| IP rating | IP20 or IPXXB |
| Dimensions (W×H×D) | 50 x 455 x 272 mm |
| Weight | approx. 3.6 kg |
| Input voltage | 24 VDC |
| Maximum power consumption | 204 W |
The manual uses Danger, Warning, Caution (with or without a safety alert symbol), and Notice symbols to indicate different levels of risk.
The Ethernet interfaces are labeled X120, X130, and X127.