Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yaskawa Electric |
| Part Number | JZNC-XIU01B |
| Product Type | Servo Amplifier / Servo Drive Module |
| Compatible System | Motoman XRC Robot Controller |
| Primary Function | Robotic arm-axis servo control |
| Mounting | Control-cabinet internal module |
| Construction | Modular PCB assembly |
| Typical Condition | Refurbished or new surplus |
| Typical Use | Replacement for failed XRC servo amplifier |
| Documentation | Verify against Yaskawa XRC hardware manual |
Product Introduction
An XRC cabinet down because one servo amp failed is not unusual. The JZNC-XIU01B is the type of module you pull when the robot loses axis drive, throws servo alarms, or shows a hard fault on one amplifier slot.
It belongs inside the Motoman XRC controller and handles servo amplification for robot arm motion. The value is simple: it is a direct-fit replacement for an aging or failed XRC servo module. Most available stock is refurbished. That is fine if the unit has been bench-tested, but it is not a plug-and-play guarantee. Check the label, revision, and cabinet wiring before committing it to production.
QA/QC Transparency SOP
- Intake & Origin Verification: Record part number, revision, serial number, and physical condition. Reject units with burnt traces, swollen capacitors, or damaged connectors.
- Live Functional Testing: Install in an XRC test rack or compatible bench fixture. Power up the controller and confirm the module is recognized without servo alarm faults.
- Electrical Parameter Tests: Measure supply rails, bus voltage, and connector continuity with a calibrated Fluke multimeter. Check for shorted outputs or abnormal idle current draw.
- Firmware/Config Verification: Read module identification and any stored parameters. Compare against the existing XRC configuration to avoid revision mismatches.
- Final QC & Anti-Static Packaging: Clean connectors, verify labeling, place in an ESD bag with desiccant, and ship with a test report.
Field Engineer Gotchas
- Wrong Module Identification: Some sellers call this an I/O or safety unit. It is most consistently listed as a servo amplifier for the XRC system. Verify the physical label and slot function before installing.
- XRC-Only Fit: This module belongs in the Motoman XRC controller. It is not a drop-in part for DX100, DX200, or NX100 cabinets. Mismatched platforms cause fit, wiring, and communication failures.
- Revision Differences: JZNC-XIU01 and JZNC-XIU01B may not be interchangeable. Check the suffix and board revision against the existing module.
- Servo Alarm After Swap: A replacement amp can trigger overcurrent, encoder, or communication alarms if the robot harness, encoder cable, or motor phase wiring is damaged. Do not assume the module is bad if the fault returns immediately.
- ESD and Backplane Handling: These are sensitive PCB assemblies. Power down the cabinet, discharge yourself, and avoid forcing connectors into the backplane.
YASKAWA JZNC-XIU01B
Application Scenarios
- XRC Cabinet Servo Alarm Recovery: Replacing a failed amplifier when the teach pendant reports a persistent servo fault on one axis.
- Aging Robot Maintenance: Swapping a worn XRC servo module before it causes unplanned downtime during a production run.
- Refurbished Robot Rebuild: Populating an XRC controller with tested modules after long-term storage or cabinet refurbishment.
- Spare-Part Standardization: Keeping one verified JZNC-XIU01B on the shelf for plants running multiple Motoman XRC robots.
FAQ
Is JZNC-XIU01B a servo amplifier or an I/O module?
Most distributor listings classify it as a servo amplifier for the Motoman XRC system. Some surplus listings use I/O or safety-unit descriptions. Verify with the OEM nameplate and XRC manual.
Will this fit a DX100 or DX200 cabinet?
No. It is designed for the Motoman XRC controller. DX100/DX200/NX100 use different modules and backplane architectures.
Can I hot-swap this module?
Do not hot-swap it unless your site procedure and Yaskawa documentation explicitly allow it. XRC cabinets contain high-voltage servo circuits. Power down and follow lockout/tagout.
Is refurbished stock acceptable?
Yes, if the seller provides testing records, revision data, and a warranty. Untested surplus carries more risk.
What specs should I confirm before ordering?
Confirm the exact part number, suffix, revision, connector type, and compatibility with your XRC cabinet model. Do not rely on generic listings.
Does this include motor or encoder cables?
No. It is a controller-internal module. Cables, fuses, and terminal blocks must be checked separately.
What if the servo alarm returns after replacement?
Check the motor phases, encoder feedback, brake circuit, harness continuity, and cabinet power supply. A bad amplifier is only one possible cause.
