Description

The YPQ 201A YT204001-KA is a CPU board serving as the processor / central compute module within its ABB legacy system rack. It executes control and supervisory routines, manages backplane communication with adjacent function boards, and stores / runs the unit's firmware and parameter set. The module is positioned in the rack's processor slot and operates as the system's decision-making element rather than a simple I/O interface. Because it is a legacy-series spare, correct board revision and rack compatibility must be verified against the installed system's bill of materials before substitution.

Features

• ABB YPQ-series CPU / processor board (central processing element)
• New condition, supplied as a stocked spare item
• Country of origin: Sweden (SE)
• Net / gross weight: 0.700 kg

Applications

• Replacement of a failed CPU board in installed ABB legacy equipment to restore system operation
• Critical-spare stocking programmes for ageing assets where continued run-time is required
• Non-destructive refresh of processor hardware during planned maintenance windows (verify firmware / parameter load procedure beforehand)

Ordering & Commercial Data

Technical Specifications

Installation Guidelines

• De-energise & lockout the host drive / controller enclosure before accessing the rack; high-voltage isolation may still be present upstream.
• Observe ESD precautions (wrist strap, conductive mat) when handling the board—processor boards are sensitive to static.
• Confirm the replacement board's type designation (YPQ 201A) and any revision / label markings match the unit being replaced; mismatched revisions can prevent proper operation even when the order number is similar.
• Reseat the module firmly in its designated processor slot / guide rails; verify retaining hardware (clips / screws / levers) are secured per the host cabinet practice.
• After power-up, follow the documented firmware / parameter-load or checksum-verify sequence for the system (do not assume the program is auto-restored—confirm with diagnostics / status indicators before returning the asset to service).

FAQ

How do I confirm YT204001-KA is the correct spare for my unit?

Cross-check the existing board's label for YPQ 201Aand the order number against your system's BOM / nameplate. If the marking differs (even slightly), request a photo verification before shipping.

Will this board arrive pre-loaded with software?

Not necessarily; many legacy CPU boards rely on the system's existing load / backup. Plan for a parameter restore or firmware transfer from your archival backup during commissioning.

Is this a new or refurbished board?

The part is listed as New.

Can I plug it in and start the machine immediately?

Only after you verify the system status LEDs / diagnostics and confirm the control program & parameters are valid. Bringing a processor online without checks risks unexpected outputs.

What HS / customs code applies if I ship internationally?

The listed tariff number is 85389091 (parts for electrical apparatus for switching/protecting circuits). Your broker should validate the final classification for the destination country.

Does it come with a warranty?

Warranty terms depend on the supplying channel; confirm in writing at quotation stage.

Are dimensions and connector pinouts published here?

No mechanical envelope or pinout data was provided in the source record; use ABB's official documentation for the YPQ 201A / host rack to obtain those details.

Can this be substituted with a later-generation ABB CPU module?

Generally no—legacy racks expect a specific processor board form factor and backplane protocol. Substitution requires an official migration / upgrade path from ABB; dropping in an incompatible module can damage hardware or break process safety.