Mitsubishi CR1Q Series Robot Controllers: CR1QA-761

Technical Dossier

Product Details And Specifications

Mitsubishi Electric CR1Q Series: Comprehensive Module Range and Technical Overview

The Mitsubishi Electric CR1Q series represents a compact, high-performance robot controller platform engineered for integration into automated production lines across global heavy industry sectors including petrochemical plants, nuclear facility maintenance operations, automotive body welding lines, and precision assembly in semiconductor fabrication. The CR1Q architecture is built on Mitsubishi's MELFA robot control technology and is designed to operate in conjunction with RV-series and RH-series articulated and SCARA robots. Its compact form factor and DIN-rail-compatible mounting options have made it a standard specification in space-constrained control cabinets across Asia-Pacific, European, and North American industrial installations. The CR1QA-761 specifically functions as a core controller unit within this platform, providing motion control, I/O interfacing, and network communication management for connected robot arms.

The Evolution of CR1Q Architecture

Mitsubishi Electric's robot controller lineage progressed through several distinct generations before arriving at the CR1Q platform. The CR1 series (early 2000s) introduced compact controller packaging for small-payload MELFA robots, replacing rack-mounted predecessors. The CR2 and CR2Q variants expanded I/O capacity and introduced open-network compatibility via CC-Link and Ethernet/IP. The CR3 series (introduced circa 2013) brought 64-bit processing, enhanced safety circuit integration (IEC 62061 / ISO 13849-1 PLd compliance), and a unified RT ToolBox3 programming environment. The CR1Q represents a refined compact-class controller within the CR3-generation architecture, retaining backward compatibility with MELFA BASIC V/VI programming while supporting RT ToolBox3 and iQ Works integration. Key compatibility considerations: CR1Q controllers are not backward-compatible with CR1/CR2 teach pendants without adapter hardware. Network modules designed for CR3D are generally cross-compatible with CR1Q via the same slot architecture. As the CR1Q series has entered its mature lifecycle phase, Mitsubishi has introduced the CR800 series as the designated successor platform, making long-term spare parts sourcing for CR1Q a critical operational requirement for facilities with existing installations.

CR1Q Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the Mitsubishi Electric CR1Q robot controller ecosystem, classified by functional category:

Controller Units

• CR1QA-761: Compact robot controller unit, MELFA RV/RH series compatible, RT ToolBox3 support
• CR1Q-717: Standard CR1Q base controller, single-robot axis management, Ethernet standard
• CR1QA-700: CR1Q controller assembly, integrated safety I/O, CE/UL certified variant
• CR1Q-771: Enhanced CR1Q controller with expanded memory allocation for complex motion programs

I/O Expansion Modules

• 2A-RZ361: Digital input expansion module, 32-point, 24VDC, for CR1Q I/O slot
• 2A-RZ362: Digital output expansion module, 32-point, transistor output, CR1Q compatible
• 2A-RZ371: Mixed I/O module, 16DI/16DO, compact slot-mount for CR1Q chassis
• 2A-RZ531: Analog input module, 4-channel, 12-bit resolution, CR1Q slot-compatible
• 2A-RZ532: Analog output module, 4-channel, 12-bit, voltage/current selectable

Communication & Network Adapters

• 2A-RZ551: CC-Link master/slave communication module for CR1Q network integration
• 2A-RZ561: PROFIBUS-DP adapter module, CR1Q slot-mount, up to 12Mbps
• 2A-RZ571: DeviceNet communication module, CR1Q compatible, scanner/adapter mode
• 2A-RZ581: Ethernet/IP adapter, 100BASE-TX, for CR1Q series network connectivity

Safety & Power Components

• CR1Q-PS: Dedicated power supply unit for CR1Q controller chassis, 24VDC regulated output
• 2A-RZ911: Safety I/O module, dual-channel emergency stop and safety gate monitoring, SIL2 rated
• TP-R56C: Teach pendant, R56C type, compatible with CR1Q/CR3D series, 10m cable
• R56TB: Replacement teach pendant body for CR1Q series, without cable assembly

Sourcing Hard-to-Find & Obsolete CR1Q Parts

As Mitsubishi Electric has transitioned its active robot controller product line toward the CR800 series, the CR1Q platform has entered a defined end-of-active-production phase. Facilities operating MELFA robots on CR1Q controllers face increasing lead times through standard distribution channels for replacement modules, particularly for I/O expansion cards and communication adapters. DriveKNMS maintains a dedicated inventory of CR1Q series components sourced through verified industrial surplus channels, OEM overstock acquisitions, and decommissioned equipment recovery. All units are catalogued by part number, firmware revision where applicable, and physical condition grade. For facilities requiring long-term maintenance agreements or bulk spare parts procurement to support 5–15 year operational horizons on existing CR1Q installations, DriveKNMS provides structured lifecycle extension sourcing programs. Inquiries for specific CR1Q part numbers, including those not listed in this catalog, are accepted via direct email with full part number and required quantity.

Quality Control for the CR1Q Range

CR1Q series controllers and associated modules undergo a structured inspection and functional verification protocol prior to dispatch. Physical inspection covers connector pin integrity, backplane bus contact condition, and enclosure integrity for all slot-mount modules. Functional testing for controller units (CR1QA-761 and variants) includes power-on self-test verification, axis communication handshake confirmation with a reference robot arm or axis simulator, and I/O channel continuity testing across all digital and analog ports. Communication modules (CC-Link, PROFIBUS, Ethernet/IP) are tested for network enumeration and data exchange at rated speeds using protocol-specific test equipment. Teach pendants are verified for display function, keypad response, emergency stop circuit continuity, and cable connector integrity. Units that do not pass all test stages are quarantined and not listed as available stock. Test records are retained and available upon request for critical procurement applications.

© 2026 DriveKNMS. All trademarks belong to their respective owners. Specifications are for reference only and subject to change without notice. Verify all parameters against official documentation before installation.