YASKAWA PGB-2K Servo Drive PCB Board

YASKAWA PGB-2K: Stop the Clock on Your Downtime — Ship Today from Xiamen

Your servo drive is dead. The line is stopped. Every hour of unplanned downtime on a YASKAWA Sigma series axis costs real money — whether that’s a CNC spindle, a robotic weld cell, or a high-speed packaging line. The PGB-2K control board is the single most failure-prone assembly inside the Sigma series amplifier, and when it goes, the entire drive goes with it. We stock it. We ship it today. That’s the only thing that matters right now.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

How to confirm the PGB-2K is the failed component — not the IGBT module or power supply:

• Fault A.400 / A.410 (Parameter Error / Setting Error): Often triggered by corrupted parameter memory on the control board after a power surge. If re-initialization via SigmaWin+ fails to clear it, the PGB-2K is the prime suspect.
• Fault A.820 / A.830 (Regenerative Overload / DB Overload): When the drive’s dynamic braking circuit reports faults but the DB resistor checks out, the gate-drive logic on the PGB-2K may be misfiring the braking IGBT sequence.
• Fault A.b1 / A.b2 (Speed Reference / Torque Reference Fault): Analog input conditioning circuitry lives on the control board. Noise immunity failures here are a classic PGB-2K failure mode in high-EMI environments.
• Drive powers on, encoder LED absent, no communication with SigmaWin+: The encoder interface ASIC on the PGB-2K has failed. The power stage may be intact — board swap is the fastest path to recovery.
• Intermittent A.710 (Overload) with no mechanical load change: Current sensing feedback path on the control board is drifting. Replace the board before the IGBT module takes collateral damage.

Replacement procedure — field-verified steps:

1. Isolate and lock out the drive. Verify DC bus voltage has discharged below 50 V (minimum 5 minutes after power-off on Sigma-II/III; 10 minutes on Sigma-7 high-capacity units).
2. Photograph all connector positions and cable routing before disconnection. The PGB-2K has multiple ribbon and JST connectors — orientation errors cause immediate re-fault on power-up.
3. Note the rotary address switch (S1/S2) setting if your system uses MECHATROLINK-II/III node addressing. The replacement board ships with switches at factory default (node 41H). Reset to match your original configuration before powering up.
4. Check firmware revision label on the original board. If the drive was running a non-standard firmware revision (common in OEM machine builds), contact us before ordering — we can source revision-matched boards.
5. After board installation, perform a parameter restore from your SigmaWin+ backup file. Do not power the motor before verifying encoder type and resolution parameters match the connected motor nameplate.
6. Run a JOG test at 10% rated speed before returning the axis to automatic operation. Monitor current waveform for asymmetry — a sign of gate-drive timing offset that requires re-tuning.

Reliability in Harsh Conditions

The PGB-2K was designed for the inside of a servo amplifier cabinet — not a climate-controlled lab. YASKAWA’s Sigma series drives are deployed in foundries, press shops, food processing lines, and outdoor-rated enclosures across every climate zone. The control board reflects that design intent:

• Vibration resistance: PCB traces and through-hole components are conformally coated and mechanically secured to withstand continuous vibration profiles consistent with IEC 60068-2-6 (10–500 Hz, 5 g). Press-fit connectors eliminate solder joint fatigue from vibration-induced micro-cracking.
• Thermal cycling: The board operates across a -10°C to +55°C ambient range with derating above 40°C. Ceramic capacitors in the gate-drive section are specified for 10,000+ thermal cycles — a critical spec in applications with frequent start/stop duty cycles.
• Humidity and condensation: Conformal coating on the signal-side PCB provides protection against condensation events during cold-start conditions in unheated enclosures. This is a known failure point on counterfeit or non-OEM boards that skip the coating process.
• EMI immunity: Differential signal routing and on-board common-mode chokes on the encoder interface lines provide immunity to the high-frequency switching noise generated by adjacent VFDs and servo drives in shared cabinet installations.

Every unit we ship has been stored in ESD-controlled, climate-stable conditions. We do not sell boards that have been sitting in uncontrolled warehouse environments — moisture ingress and electrostatic discharge are the two fastest ways to kill a control board before it ever gets installed.

Global Express Logistics

We operate from Xiamen, China — one of the most logistics-connected export hubs in Asia. When you place an order before 14:00 CST, the board ships the same business day. Here is exactly what happens after you confirm:

1. Order confirmation → Warehouse pick: The PGB-2K is pulled from our ESD-controlled stock, visually inspected, and bench-verified against a known-good reference drive.
2. Packaging: Board is sealed in a double-layer anti-static bag, placed in a foam-lined rigid export carton rated for air freight handling. Fragile and ESD-sensitive labels applied externally.
3. Carrier handoff: DHL Express or FedEx International Priority — your choice. Both carriers offer Xiamen pickup with next-flight-out priority on urgent shipments. We have daily scheduled pickups.
4. Transit times (typical): Southeast Asia 1–2 days | Europe 2–3 days | North America 2–4 days | Middle East / Africa 3–5 days. These are business-day estimates under normal customs clearance conditions.
5. Customs documentation: Commercial invoice, packing list, and HS code 8537.10 declaration prepared to minimize customs hold risk. We have experience clearing industrial electronics into EU, US, AU, and GCC markets.
6. Tracking: AWB number sent to your email within 2 hours of carrier pickup. Real-time tracking link included.

For critical shutdowns where every hour counts, contact us directly on WhatsApp before placing the order. We can confirm stock, arrange priority packaging, and coordinate with the carrier for earliest possible flight departure.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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