The Renishaw ACC2-3 is a specialized control unit that serves as the "brain" for automated probe switching in high-precision measurement environments. In modern Co-ordinate Measuring Machine (CMM) workflows, the ability to switch between different 3D touch probes or scanning modules without operator intervention is critical for efficiency. The ACC2-3 enables this by managing the complex signal handshaking required during the pick-and-place operation of a probe into an autochange rack.

Seamless Automation Integration

Designed primarily to support the Renishaw Autochange (AC) system, the ACC2-3 facilitates the automated replacement of probe modules or stylus configurations. When the CMM moves to change a probe, the ACC2-3 ensures that the electrical signals are correctly routed and that the probe head is safely locked or unlocked. This prevents accidental damage during the changeover and ensures that the measurement data remains consistent even after multiple hardware swaps.

Enhanced Signal Processing for 3D Probes

3D scanning probes, such as the SP25M or SP80, generate complex analog or digital data that requires stable, noise-free transmission. The ACC2-3 acts as a high-quality interface, maintaining signal integrity between the probe head and the main machine controller. It also provides essential power to the probe electronics and monitors for error states, providing instant feedback via front-panel LEDs if a probe is incorrectly seated or a signal is lost.

Key Features

• Autochange Rack Support: Natively controls AC1 and AC2 racks for smooth, repeatable probe exchanges.
• Multi-Probe Management: Allows the system to recognize and adapt to different probe types (e.g., switching from a tactile touch probe to a high-speed scanning probe).
• Diagnostic Logic: Internal circuitry performs continuous self-checks to ensure the safety of the delicate 3D probe mechanisms.
• Rack-Mount Ready: The compact, half-width design allows two units to be mounted side-by-side in a standard 19-inch electronics rack.
• Plug-and-Play Compatibility: Designed to work seamlessly within the existing Renishaw CMM ecosystem with standard multi-pin connectors.

Typical Applications

• High-Volume CMM Inspection: Enabling 24/7 automated measurement of complex aerospace or automotive components.
• Automated Toolroom Metrology: Managing multiple sensor types on a single machine for comprehensive part verification.
• Precision Scanning: Providing the necessary interface for high-definition 3D surface scanning modules.
• Retrofit Projects: Upgrading older manual CMMs to fully automated, multi-probe systems.