C9900-M400 | BECKHOFF | Keyboard Shelf for CP7xxx Control Panels

Product Overview

The C9900-M400 (C9900-M400) is a heavy-duty, industrial-grade keyboard shelf designed specifically for the CP7xxx series of Beckhoff Control Panels and Panel PCs. Engineered for ergonomic efficiency in high-performance manufacturing environments, this shelf provides a stable and secure platform for standard computer keyboards and pointing devices. It is an essential accessory for operators who require frequent data entry or system configuration directly at the machine interface. Built with the same robust aesthetics as the CP7xxx series, the C9900-M400 ensures that the human-machine interface (HMI) remains functional and user-friendly even in harsh industrial settings.

Technical Configuration

The C9900-M400 hardware is designed for seamless mechanical integration with the housing of the CP7xxx series. It features a high-quality finish that matches the anodized aluminum or stainless steel of the Beckhoff panels, maintaining the IP65 integrity of the overall assembly when properly mounted. The shelf is designed to handle the mechanical stress of constant typing and can support standard industrial keyboards. The mounting mechanism is engineered to ensure a rigid connection to the control panel stand or mounting arm, preventing unwanted vibration or flex during use.

Technical Specifications

Technical FAQs

Is the C9900-M400 compatible with third-party monitors?

No, this shelf is specifically designed with mounting geometry and aesthetic finishes tailored to the Beckhoff CP7xxx range. While it can hold a variety of keyboards, the mounting bracket is unique to Beckhoff’s industrial panel housing.

Does this shelf include an integrated keyboard?

No, the C9900-M400 is the mechanical shelf only. It provides the platform for you to place your preferred industrial or standard keyboard. For a shelf with a built-in keyboard, you would typically look at the C9900-M406 or similar integrated models.

What is the maximum load capacity for this shelf?

While designed primarily for a keyboard and a mouse, the shelf is reinforced to withstand the weight of an operator leaning on it slightly during data entry. However, it should not be used as a general-purpose storage shelf for heavy tools or components.

Engineering & Installation Guide

• Mounting Alignment: Ensure that the mounting screws are tightened to the torque specifications provided in the CP7xxx manual. Over-tightening can strip the aluminum threads, while under-tightening can lead to shelf instability during operation.

• Cable Management: When placing a keyboard on the C9900-M400, route the USB or PS/2 cables through the dedicated cable glands of the CP7xxx panel. This maintains the IP65 rating of the panel and prevents cable snagging during machine movement.

• Ergonomic Positioning: Mount the shelf at a height that allows for a neutral wrist position for the operator. If the panel is on a swing arm, ensure the arm's tension is adjusted to account for the additional weight of the shelf and keyboard to prevent "drifting."

• Maintenance: The polycarbonate and metal surfaces can be cleaned with standard industrial wipes. Avoid using highly abrasive cleaners that could scratch the finish or damage the aesthetic matching between the shelf and the Control Panel.