- 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-ENC4
Allen-Bradley 8520-ENC4 with +5V from Main Power Supply Input Power Range for Encoders,2 MHz Max. Input Frequency of Encoder Feedback, and 3.5V-4.5V Desired Voltage Range of Encoder Battery Backup. It
Available
8520-ENET1
The product code 8520-ENET1 is reserved for a communication module that is made by Allen-Bradley/Rockwell Automation. The unit is intended for MMS/Ethernet communication and it is part of the 8520 or
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8520-ETCP
Designed as an interface module for open communication, the 8520-ETCP facilitates interaction between 9/Series CNC systems and various OCI devices. It features backplane rack bus connectors and operat
Available
8520-FOP
This operator terminal has a display size of 10.5 inches. It is rated for an input voltage between 5 V and 12 V AC. The product supports operating temperatures from 0°C to 60°C and can be stored under
In Stock Ships Today
8520-FR
This memory stick operates at a rated voltage of 5 volts DC and is intended for use within a SIMM slot. It retains data for up to 6 months without a power supply and functions within a temperature ran
Available
8520-FR2
The 8520-FR2 memory module features LED indicators for status monitoring and includes an overheat fault detector for enhanced reliability. It operates effectively in temperatures ranging from 0°C to 5
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8520-FR2A
This Flash RAM memory module operates effectively within a temperature range of 0 °C to 55 °C and can be stored at temperatures ranging from -40 °C to 85 °C. It comprises four high-density IC chips, e
Available
8520-KBI
Allen-Bradley 8520-KBI with 5V DC Power and Fiber Optic Cables Connection to I/O Ring.
In Stock Ships Today
8520-KBI2
Configured for functionality within Allen Bradley's 8520 CNC Controllers, this circuit board works effectively at a voltage rating of 5 VDC. It connects via fiber optic cable and operates in a tempera
Available
8520-KYBI
This unit includes 5 soft keys and operates with an operator terminal power supply of 5V DC. It features an LED fault indicator and necessary jumpers for added functionality. The device is rated to op
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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.