BECKHOFF C9900-G028 CP39xx Push-button Extension

Description

Designed to expand the physical operator interface of Beckhoff CP39xx multi-touch panels, the BECKHOFF C9900-G028 provides an integrated tactile control assembly directly below the display unit. This push-button extension enables machine operators to trigger critical system commands and safety protocols through robust, high-durability mechanical switches. Engineered for seamless integration with mounting arm configurations, the unit routes control signals directly to the HMI and control network via industrial-grade terminal strips and USB connections.

The layout features pre-configured horizontal mounting positions for tactile keys, including a highly visible, dedicated safety emergency stop button. Key configurations rely on industry-standard components, ensuring tactile feedback and long operational lifetimes in demanding factory floor environments. The design permits custom marking of individual buttons via slide-in labels, maintaining professional panel organization and operating clarity.

Features

• Direct integration with Beckhoff CP39xx multi-touch control panels equipped with mounting arms.
• Rugged anodized aluminum cable channel connecting directly to the backside mounting arm adapter.
• Standardized 30 mm round RAFI RAFIX 22FS+ series key switches with built-in signal lamps.
• Dedicated high-reliability RAFI RAFIX 22FS+ emergency stop key for immediate safety intervention.
• Dual-path communications offering both USB and physical terminal strip switch contacts.
• Slide-in labeling slots for custom marking of each operator control element.
• Robust industrial cable management using a integrated M20 cable gland.

Applications

• CNC machining centers and multi-axis milling systems.
• Automotive assembly line operator stations.
• Heavy machinery HMI consoles with mounting arm assemblies.
• Process manufacturing plant control interfaces requiring local safety stops.

Technical Specifications

Connections and Interfaces

Installation Guidelines

During mechanical installation of the C9900-G028, ensure that the aluminum cable channel is securely fastened to the mounting arm adapter located on the backside of the CP39xx multi-touch panel. Route all control cables cleanly through the integrated M20 cable gland to prevent mechanical strain or wear on internal connections. To maintain high noise immunity and ensure correct USB communication, route signal lines away from high-voltage motor power cables or variable frequency drive (VFD) output wires. Ensure the emergency stop circuit is integrated into the system's hardwired safety loop via the designated terminal strip contacts in compliance with local machinery safety standards.