Yaskawa GA500 AC Drive
Yaskawa GA500 AC Drive code PASS: Modbus Communication Test
The communications test is complete, meaning the drive is now ready to resume normal booth operations.
- Code
- PASS
- Name
- Modbus Communication Test
- Controller
- Yaskawa GA500 AC Drive
- Type
- Communication
- What it does
- Warning: the equipment keeps running and flags a problem
- Risk
- GREEN In your wheelhouse
- Reset
- Clears on its own when the condition goes away
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated November 4, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- What the manual says to do, and the page it is on
- The 1 common cause listed for this code
- The step by step check for this problem, one check at a time
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Yaskawa GA500 AC Drive code PASS mean?
The communications test is complete, meaning the drive is now ready to resume normal booth operations.
Is Yaskawa GA500 AC Drive code PASS dangerous?
It is graded green: in a working tech's wheelhouse with standard tools and low risk.
How do I fix Yaskawa GA500 AC Drive code PASS?
The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.
Other Yaskawa GA500 AC Drive codes
LT-1 · Cooling Fan Maintenance TimeLT-2 · Capacitor Maintenance TimeLT-3 · SoftChargeBypassRelay MainteTimeLT-4 · IGBT Maintenance Time (50%)PWEr · DWEZ Password MismatchSToF · Safe Torque OFF HardwareTrPC · IGBT Maintenance Time (90%)dCE1 · Communication Error1dCE2 · Communication Error2dFPS · Drive Model Mismatch