A20B-2900-0140 Fanuc SRAM Module

The A20B-2900-0140 is a Fanuc SRAM module used in F16 PMC control systems where stable memory support is important for normal CNC operation. Identified as PCB - F16 PMC Control SRAM 128K, this board is a 128K SRAM module for PMC control and is used in applications where correct memory handling is part of keeping the control system working reliably.

Because this model has been discontinued by the manufacturer, it is now mainly requested by customers who are maintaining older Fanuc-controlled equipment, replacing failed memory-related hardware, or preparing spare stock for long-term support. In real maintenance work, the A20B 2900 0140 remains valuable because memory modules are often essential to preserving the original control structure of installed equipment.

At REACO CNC, we supply dependable Fanuc parts for customers who need replacement memory boards, backup stock, or Fanuc repair support for installed CNC systems.

The A20B-2900-0140 Fanuc PCB is especially relevant in systems using F16 PMC control, where the memory side of the control architecture must remain stable. Compared with larger control boards, an SRAM module may look smaller and simpler, but in actual service work it can be just as important. When memory-related hardware becomes unstable, the machine may show unusual control behavior, data-related faults, or operating problems that are difficult to trace at first.

That is why, for many maintenance teams, replacing the correct A20B-2900-0140 is often the most efficient way to preserve original PMC control functionality and reduce unnecessary troubleshooting.

This board is commonly associated with:

• Fanuc F16 PMC control systems
• Memory support for CNC controls
• 128K SRAM module replacement
• Maintenance and rebuild projects
• Service work requiring original-compatible Fanuc control PCBs

It may also be sourced together with related Fanuc controller boards, interface modules, I/O boards, main boards, servo amplifier units, spindle drive units, and other CNC electronic assemblies during broader repair work.

Depending on stock availability, this board may be supplied in:

• New condition
• Refurbished condition
• Used condition

For many customers, refurbished stock is a practical choice because it offers dependable replacement support while helping control cost and lead time. This is especially useful when the machine is still productive and the goal is to keep the original PMC control layout unchanged.

Customers usually look for the A20B-2900-0140 when they need:

• A direct replacement for a faulty SRAM module
• Support for discontinued F16 PMC control hardware
• Reliable Fanuc stock for important machines
• Access to dependable Fanuc parts for maintenance and repair
• Help deciding between replacement and Fanuc repair

In real production environments, memory-related faults can be frustrating because they may affect control behavior without pointing immediately to one obvious hardware cause. Having the correct A20B-2900-0140 available can make diagnosis much clearer and help return the machine to stable service faster.

REACO CNC supports both direct replacement supply and Fanuc repair inquiries. If your original A20B-2900-0140 is damaged, we can help review whether repair is practical or whether replacement is the better route based on stock, condition, and urgency.

We also support sourcing for related Fanuc parts, including SRAM modules, main boards, interface modules, I/O boards, servo amplifier units, spindle drive units, and other CNC electronic assemblies used in installed Fanuc systems.

For many factories, older Fanuc systems are still worth maintaining as long as the correct spare parts are available. A proper A20B 2900 0140 replacement can help preserve the original memory structure, reduce downtime, and keep maintenance work more manageable over the long term.

FAQ

What is A20B-2900-0140?
It is a Fanuc SRAM module used in CNC systems.

What is this board identified as?
It is identified as PCB - F16 PMC Control SRAM 128K.

What capacity is listed for this module?
It is listed as a 128K SRAM module.

Is A20B-2900-0140 discontinued?
Yes. This model has been discontinued by the manufacturer.

What is this board used for?
It is used as a memory module for PMC control in Fanuc CNC systems.

Can A20B-2900-0140 be repaired?
Yes. Repair may be possible depending on the board condition and fault type.

Do you provide worldwide shipping?
Yes. We supply Fanuc parts to customers around the world.

Need pricing or availability for A20B-2900-0140?
Contact REACO CNC for stock status, repair support, and worldwide shipping options.