Epson RC700A and RC90B Robot Controllers Review: Specs, Price and Applications
Updated: 7 days ago
Epson RC700A and RC90B are robot-controller platforms for different supported Epson robot configurations: RC700A addresses broader robot and expansion requirements, while RC90B is associated with LS-B SCARA systems.
Quick Verdict
These controllers deserve consideration when their exact robot pairing and installed options match the cell. RC700A offers a broader expansion architecture; RC90B is a focused LS-B choice. Neither should be selected from a generic Epson compatibility claim or assumed to include all communications and application options.
Epson RC700A and RC90B Robot Controllers at a Glance
Models reviewed: RC700A and RC90B, with model-specific capabilities
RC700A execution: SPEL+ real-time robot engine; Epson describes up to 32 tasks
RC700A core motion: Up to six axes from the core controller
RC700A expansion: Additional compatible robots through external drive units; configuration-dependent
RC90B application: Supported LS-B SCARA robot configurations
Engineering environment: Epson RC+; confirm release and controller firmware
Integration: Communications and application options selected per controller
Price: Request a quote for the exact ordering configuration.
Technical Specifications
Specification | Documented configuration |
Models reviewed | RC700A and RC90B, with model-specific capabilities |
RC700A execution | SPEL+ real-time robot engine; Epson describes up to 32 tasks |
RC700A core motion | Up to six axes from the core controller |
RC700A expansion | Additional compatible robots through external drive units; configuration-dependent |
RC90B application | Supported LS-B SCARA robot configurations |
Engineering environment | Epson RC+; confirm release and controller firmware |
Integration | Communications and application options selected per controller |
Design and Build
The important distinction is architectural. RC700A combines Epson's robot execution environment with an expansion path for more elaborate cells. Epson describes a six-axis core controller and additional robots through external drive units. That is different from having all motors, drives and interfaces available inside one standard cabinet. A multi-robot quotation should identify every drive unit, cable, robot pairing and required option rather than rely on a headline robot count.
A motion controller should be selected from an axis and interface plan. Identify each real motor, its drive command, its feedback and the signals shared with the machine. Then define any virtual reference axes and coordinated relationships. Physical ports, software axes and supported motion functions describe different resources. Treating those resources as interchangeable can leave a controller short of the connections needed by the machine.
Configuration and Integration
RC90B is the more focused LS-B SCARA pairing in this listing. The source also contains older RC90 and LS3/LS6 wording, which should not be transferred automatically to RC90B. For maintenance or replacement, confirm the complete controller suffix and robot identification against the relevant manual. Similar names do not establish interchangeable harnesses, software images or safety connections.
Programming needs to cover the complete machine sequence, including initial conditions, motion limits, communication errors and recovery. A successful demonstration move is only the beginning. Define which coordinate information remains valid after an interruption and which must be re-established. Coordinate transitions between motion groups and independent axes should be tested against the actual mechanical travel and load constraints.
Applications and Use Cases
Relevant to supported Epson robot-cell projects and maintenance teams evaluating an installed RC700A or RC90B system. Confirm the exact robot pairing, controller condition, software baseline and replacement strategy before committing to a retrofit..
The original RC700A description mentions Windows 8.1 and Windows 10 development hosts and calls RC+ 7.0 new. Those are generation-specific statements, not a current computer-support guarantee. An existing cell should retain its approved software baseline until a replacement PC or software upgrade has been checked. For a new project, ask Epson to confirm the appropriate current controller alternative and compare the complete supported package, including available spares and commissioning support.
The controller's value lies in delivering the machine's required motion with an architecture that can be maintained. Axis count, language support and interface options are useful, but their practical value depends on the selected drives and application.
Alternatives and Selection
Compare RC700A and RC90B through the required robot model and cell architecture. Include an appropriate current Epson controller in a new-project comparison, with matched communications, application options and support terms. A low controller-only price is not a complete installed-cell comparison.
Price and Value
Price: Request a quote. The quotation should identify the exact product configuration, included options, delivery terms and support scope. Accessories and integration work should be listed separately so the hardware price can be compared on a like-for-like basis. A family name or headline specification is not a complete purchasing description.
Assess value against the work the product enables in the machine. Include the engineering needed to configure it, the equipment that must operate alongside it and the effort required to maintain or replace it. A lower component price can be outweighed by extra integration work, while additional features are valuable only when the application can use them. Compare written configurations rather than assumed package contents.
Pros and Cons
Pros
RC700A provides a documented architecture for expanded compatible robot systems
RC90B offers a focused controller pairing for supported LS-B SCARA robots
Epson RC+ tools support programming and integrated application options
Cons
Model names and generations do not establish drop-in interchangeability
Expansion and communications require a configuration-specific hardware and option list
Older host-software statements need a fresh support check
Who Should Consider Epson RC700A and RC90B Robot Controllers?
These controllers deserve consideration when their exact robot pairing and installed options match the cell. RC700A offers a broader expansion architecture; RC90B is a focused LS-B choice. Neither should be selected from a generic Epson compatibility claim or assumed to include all communications and application options.
The strongest purchasing case is a clearly defined requirement that matches the documented configuration. If the project depends on a particular option, interface or mechanical arrangement, include it explicitly in the order. Keep the accepted configuration with the equipment documentation so a later replacement preserves the intended application.
Commissioning and Acceptance
Evaluate the installed controller with the selected drives, encoders and mechanism. Test trajectory transitions, command handling and the expected production cycle, then check the response to interrupted feedback or communications using the machine's approved test procedure. Record the working controller configuration and application version so a replacement can reproduce the accepted behavior. Positioning accuracy is a result of the complete mechanical and control system.
Epson RC700A and RC90B Robot Controllers FAQ
What is Epson RC700A and RC90B Robot Controllers?
Epson RC700A and RC90B are robot-controller platforms for different supported Epson robot configurations: RC700A addresses broader robot and expansion requirements, while RC90B is associated with LS-B SCARA systems.
Which configuration is reviewed?
Models reviewed: RC700A and RC90B, with model-specific capabilities. RC700A execution: SPEL+ real-time robot engine; Epson describes up to 32 tasks.
What is the main selection consideration?
These controllers deserve consideration when their exact robot pairing and installed options match the cell. RC700A offers a broader expansion architecture; RC90B is a focused LS-B choice. Neither should be selected from a generic Epson compatibility claim or assumed to include all communications and application options.
What applications should it be considered for?
Relevant to supported Epson robot-cell projects and maintenance teams evaluating an installed RC700A or RC90B system. Confirm the exact robot pairing, controller condition, software baseline and replacement strategy before committing to a retrofit..
What is a documented advantage?
RC700A provides a documented architecture for expanded compatible robot systems. RC90B offers a focused controller pairing for supported LS-B SCARA robots.
What limitation matters during integration?
Model names and generations do not establish drop-in interchangeability. Expansion and communications require a configuration-specific hardware and option list.
What is the price?
Price: Request a quote. Specify the exact ordering configuration, required options, accessories and delivery terms.
How should an alternative be compared?
Compare RC700A and RC90B through the required robot model and cell architecture. Include an appropriate current Epson controller in a new-project comparison, with matched communications, application options and support terms. A low controller-only price is not a complete installed-cell comparison.
Product information: EPSON Robots supplier product information.
Pricing is quotation-based and may change. Options, availability, delivery and application requirements depend on the selected ordering configuration.
