- Dead displays
- Local/remote port failures
- Main control board failures
- I/O Failures
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Allen Bradley 8520 CNC Controllers Repair
We offer extensive repairs for your 8520 CNC Controllers. We keep many spare parts in stock so that we can repair your 8520 CNC Controllers as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your 8520 CNC Controllers and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your 8520 CNC Controllers parts.
- Power control board failures
- SCR/IGBT failures
- Faulty fans
- Heatsink sensor faults
- DC bus failures
- Precharge failures
- Undervoltage
- Overvoltage
- Broken Plastic Covers
- Missing Covers
- Missing Terminals
- Broken mounting attachments/corners
Browse 8520 CNC Controllers Repairs
Browse our catalog of repairable 8520 CNC Controllers parts to get a quote.
8520-SPB
This processor board, classified as a 9/230 type, functions efficiently with a current draw of 1.2 A. Indicators take the form of status LEDs to provide feedback. Connectivity is managed via edge or p
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8520-SPNL
This DC switch panel includes status LEDs for operational visibility and can be easily mounted for convenience. It functions optimally within a temperature range of 0 to 40 degrees Celsius during use
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8520-SPRO
This sub-processor board is integral in processing I/O signals for the Control Operator Panel. Its logic input operates at 24 VDC and features communication capabilities with the main processor throug
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8520-SR
This digital servo drive is structured with a modular design, featuring an axis module for enhanced adaptability. It supports a minimum relative humidity of 5% and a maximum of 95%, making it suitable
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8520-VOP
Ideal for use with CNC Series 230, 260, 290, and 440, this operator terminal features an 11.5-inch CRT display. It utilizes RS-422 input video-serial differential communications for connectivity. The
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About 8520 CNC Controllers
The Allen-Bradley 8520 CNC controllers are a series of 9/230 controllers in the Allen-Bradley 8520 Computer Numerical Control (CNC) system that is designed to provide out-of-the-box programming capabilities for improved system performance, reduced costs, and complete system control. The 8520 CNC controller series comprises processor modules from the Allen-Bradley 9/230 CNC systems, 9/260 and 9/290 CNC systems, 9/440 CNC systems, and the 9/440HR CNC systems, and they can be ordered as single-axis, 3-axis, and 4-axis controllers. The 8520 CNC 9/230 controllers can be ordered as single-axis and 3-axis controllers, and they support both the Allen-Bradley 8520 digital amplifiers and the Allen-Bradley 1394 digital servo amplifiers. The 9/260 and 9/290 controllers comprise a motherboard and a CPU board installed in an enclosure, and this enclosure also supports 3-axis digital and analog servo modules, a remote I/O port, and a power supply.
The 8520 CNC 9/440 controllers are resolver-based controllers that support up to 4 closed-loop axes and 2 closed-loop analog systems. The 9/440 resolver-based controllers comprise a resolver board that provides CNC logic, a feedback board, and a power supply, and they are designed for use with the Allen-Bradley 1326 digital servo motor series. The 9/440HR controller series supports up to 4 closed-loop axes and 2 closed-loop analog axes, and they are designed to interface with the Allen-Bradley 1326 digital servo motors with high-resolution feedback options. The 9/440 controllers can be ordered as single-axis, 3-xis, and 4-axis devices with resolver feedback ports, analog outputs, and encoder feedback ports (3-axis and 4-axis only). The 8520 CNC controllers support the RS-232, RS-422, MMS Ethernet Communications, and the Data Highway Plus (DH+) communication interfaces. They also support a wide range of operator interfaces and compatible adapter modules.