Description
Product Introduction & Engineering Value
Kawasaki 50999-2145R10 is a legacy 1GW-51 control/processor PCB used in Kawasaki robotic control equipment. The complete R10 revision should be retained when sourcing the replacement. Industrial listings also identify the underlying 50999-2145 family as an analog/parallel I/O board with three I/O ports.
There is particularly useful field evidence for this part: a Kawasaki 50999-2145R10 1GW-51 processor PCB was removed from a Nikon NSR-S205C step-and-repeat exposure system and listed as used-working inventory. That establishes a concrete semiconductor-equipment application for this Kawasaki board.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Kawasaki |
| Part Number | 50999-2145R10 |
| Alternate Format | 509992145R10 |
| Board Designation | 1GW-51 |
| Related Designation | 1GW-11 |
| Product Type | Robot control / processor PCB |
| I/O Type | Analog / parallel I/O |
| I/O Ports | 3 |
| Controller Function | Processing / control interface |
| Application | Kawasaki robotic control systems |
| Documented Equipment | Nikon NSR-S205C |
| Board Revision | R10 |
| Input Voltage | Verify from the parent controller |
| Firmware | System-dependent |
| Lifecycle | Discontinued / legacy |
The three-port analog/parallel I/O description is specifically published for 50999-2145R10, while the Nikon equipment record identifies the unit as a 1GW-51 processor PCB card.
Identification point worth preserving
The following identifiers should be kept together on a purchase order:
50999-2145R10 → 1GW-51 → 1GW-11 → 50999-2145
These cross-references appear in current industrial spare-parts catalogs.
Field Application & the “Trench” Experience
A particularly relevant field example involves a Nikon NSR-S205C step-and-repeat exposure system. A used-working Kawasaki 50999-2145R10 was documented as having been removed from that equipment.
That matters when troubleshooting semiconductor equipment. A failure involving this board may initially appear to be a generic Kawasaki robot-control problem, while the actual installed application can include specialized equipment-side I/O and communications.
For a replacement, the technician should compare the 1GW-51 board, R10 revision, connector arrangement, I/O configuration, and any equipment-specific settings before removing the original.
Niche application scenarios
- Nikon NSR-S205C step-and-repeat exposure equipment: legacy Kawasaki control-board replacement.
- Semiconductor wafer-processing equipment: Kawasaki robot and equipment-interface control.
- Parallel I/O integration: applications requiring the documented three-port analog/parallel I/O arrangement.
- Legacy Kawasaki robot-controller refurbishment: board-level replacement rather than complete controller replacement.

50999-2145R10

50999-2145R10
Transparency SOP: QA & Testing
For New Surplus or Refurbished 50999-2145R10, I would use this sequence:
- Identity check — Confirm
50999-2145R10. - Board check — Confirm
1GW-51marking. - Revision check — Verify R10.
- I/O inspection — Confirm the three-port configuration and compare connectors with the original.
- PCB inspection — Look for corrosion, damaged traces, cracked solder joints, overheated components, and connector damage.
- Configuration capture — Photograph switches, jumpers, memory devices, and all secondary labels.
- Controlled power-up — Test in the appropriate Kawasaki controller environment.
- I/O verification — Exercise the applicable analog/parallel I/O channels.
- System communication test — Verify communication with the parent controller.
- Functional test — Where possible, test in the actual Kawasaki/Nikon equipment configuration.
Do not treat “powers on” as equivalent to a functional I/O test.
The Veteran’s Tech Trap Guide
⚠️ Trap #1 — Calling it only a “processor board”
One source identifies 50999-2145R10 as a processor PCB card, while another identifies it as an analog/parallel I/O PCB with three ports. Both descriptions are useful, but neither should be used to ignore the actual installed configuration.
PRO TIP: Use the board number plus the equipment model when verifying compatibility.
⚠️ Trap #2 — Dropping the R10 revision
Do not order merely 50999-2145 if the installed board is 50999-2145R10. The revision is part of the procurement identity.
⚠️ Trap #3 — Confusing 1GW-51 with 1GW-11
Industrial catalogs associate the part with both 1GW-51 and 1GW-11. That does not automatically prove that every board carrying one of those designations is interchangeable.
⚠️ Trap #4 — Ignoring the semiconductor-equipment application
The documented Nikon NSR-S205C application means that equipment-side configuration can matter. A board that passes a generic bench test may still require the correct configuration to operate in the production tool.
Dynamic FAQ
What is Kawasaki 50999-2145R10?
It is a Kawasaki 1GW-51 processor/control PCB, with industrial spare-parts references also identifying it as an analog/parallel I/O board with three I/O ports.
What is the 1GW-51 designation?
1GW-51 is the board designation associated with Kawasaki 50999-2145R10. Current spare-parts catalogs also reference 1GW-11 and 50999-2145 with this part family.
How many I/O ports does it have?
Available industrial-part documentation specifies three I/O ports and describes the board as an analog/parallel I/O PCB.
Is it used in semiconductor equipment?
Yes. A documented 50999-2145R10 / 1GW-51 was removed from a Nikon NSR-S205C step-and-repeat exposure system and listed as used-working.
Is 50999-2145R10 discontinued?
Yes. Current industrial spare-parts references list the part as discontinued by the manufacturer.
Can I substitute a 1GW-51 without the R10 suffix?
Do not assume so. Verify the complete 50999-2145R10 identification, board revision, I/O configuration, parent controller, and equipment application.
What should I request for New Surplus stock?
Request actual-unit photographs, 50999-2145R10 and 1GW-51 markings, R10 revision confirmation, connector/I/O photographs, functional test results, and written warranty terms.
Is refurbished inventory available?
Yes. Current industrial suppliers list 50999-2145R10 in refurbished and used-working inventory. One current supplier specifically lists a refurbished unit and component-level repair service, while another equipment listing documents a used-working board removed from a Nikon .
What warranty should I ask for?
Ask for a written functional warranty on the actual board, not just a condition guarantee. One current repair supplier states that its 50999-2145R10 repairs include a one-year warranty covering parts and labor; that is a supplier warranty rather than a Kawasaki OEM warranty.




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