BECKHOFF C9900-E878 Control Panel Accessory Push-button Extension

Name: BECKHOFF C9900-E878 Control Panel Accessory Push-button Extension
Brand: BECKHOFF
SKU: C9900-E878

SKU C9900-E878

Disponibile

12-month warranty
Free returns within 30 days

Manufacturer: BECKHOFF
Product No.: C9900-E878
Origin Germany
Product Type: Push-button Extensions
Payment: T/T, Western Union
Weight: 5.0 kg
Dimensions: drawings with dimensions of the push-button e x tensions as AutoCAD DXF file
Shipping port: Xiamen
Warranty: 12 months

Product Description

Description

Designed to expand physical operator control capabilities on Beckhoff human-machine interfaces, the C9900-E878 push-button extension provides integrated tactile inputs directly adjacent to the industrial display. This extension module is engineered for mounting on the right-hand side of CP6x32-00xx and CP7x32-00xx Control Panels and Panel PCs featuring a 15-inch display configuration without an integrated keyboard.

The unit combines digital integration with traditional hardwired fail-safe pathways. It houses 18 individual push-button keys outfitted with integrated signal lamps (Siemens Signum square, 30 x 30 mm layout) and a dedicated Siemens Signum emergency stop key. Signal transmission is handled flexibly: primary button operations and all signal lamp controls are transmitted over CP-Link or USB. For safety-critical integrations and independent control loops, each push-button provides a second normally-open contact routed directly to an onboard terminal row for local hardwiring.

Features

Specifically designed for right-side mounting on Beckhoff CP6x32-00xx and CP7x32-00xx 15-inch displays.
Equipped with 18 Siemens Signum square (30 x 30 mm) push-buttons with built-in signal lamps.
Integrated Siemens Signum emergency stop switch, designed for direct external hardwiring.
Customizable label inserts under push-button caps to allow application-specific marking of control functions.
Dual-channel connection capability: digital transmission via CP-Link/USB alongside a local terminal row for direct wiring of secondary normally-open contacts.
Signal lamps operate exclusively through digital communication channels via the CP-Link or USB interface.

Applications

Operator panels on automotive assembly lines.
Machine-level HMI control stations in packaging and materials handling.
Process control desks requiring physical emergency stop and manual cycle start/stop overrides.
Specialty machinery where software touchscreens are complemented by tactile operator controls.

Technical Specifications

ManufacturerPart Number / ModelDevice TypeCompatibilityMounting SideControl ElementsEmergency Stop ElementPrimary InterfaceSecondary InterfaceShipping Weight

BECKHOFF

C9900-E878

Push-button Extension

CP6x32-00xx and CP7x32-00xx (15-inch display without keyboard)

Right side

18 push-buttons (Siemens Signum, square 30 x 30 mm) with signal lamps

1 Emergency Stop key (Siemens Signum), direct-wiring capable

CP-Link or USB (for lamps and first normally-open contact)

Terminal row for direct wiring of second normally-open contact

5.0 kg

Connections and Interfaces

CP-Link / USB ConnectionTerminal RowE-Stop Terminals

Interface Type	Function and Routing
Transmits primary push-button states (normally-open) and powers/controls all signal lamps.
Provides hardwired access to the secondary normally-open contacts for the 18 push-buttons.
Directly wireable safety circuit interface for the Siemens Signum Emergency Stop key.

Installation Guidelines

Mounting: Mechanically align and secure the extension unit to the right-hand chassis mounting points of the compatible 15-inch control panel. Ensure gaskets are seated correctly to maintain ingress protection ratings.
Wiring Safety: Route the emergency stop circuit separately from communication cables to prevent electromagnetic interference and comply with safety loop regulatory standards.
Grounding: Ensure the control panel chassis is properly grounded to the machine frame to provide effective shielding for the CP-Link/USB communication lines.

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

FAQ

Which Beckhoff panels are compatible with the C9900-E878 extension?

The C9900-E878 is compatible with Beckhoff CP6x32-00xx and CP7x32-00xx Control Panels and Panel PCs featuring a 15-inch display configuration without a built-in keyboard.

How are the push-buttons wired to the controller?

They feature dual wiring paths: primary signals are transmitted digitally via CP-Link or USB, while a secondary normally-open contact for each button is routed to a terminal block for direct physical wiring.

Can the signal lamps be controlled via physical wiring?

No. The signal lamps inside the 18 push-buttons are controlled and transmitted exclusively via the USB or CP-Link connection.

How is the Emergency Stop switch wired?

The Siemens Signum Emergency Stop key is directly wireable via dedicated terminals, allowing it to be integrated directly into a physical safety relay or safety PLC circuit.

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