Yaskawa GA700 Error Code bUS

Yaskawa PLC & VFD Major Communication

Model: GA700 | Code: bUS

Applicable Systems
GA700 GA500 A1000 V1000 J1000

Symptoms

Option communication fault: option card communication error.

Possible Causes

  • Option card communication cable fault
  • Option card hardware failure
  • Protocol mismatch

Troubleshooting Steps

  1. Step 1: Check option card communication cable
    Cable intact and connected
  2. Step 2: Verify option card hardware
    Card functional
  3. Step 3: Verify protocol settings
    Settings match

How to Reset

Reset via digital operator after communication is restored.

Related Yaskawa Fault Codes

Comments (0)

Share your experience to help others facing the same problem.

No comments yet. Be the first to share your experience!

Leave a Comment

Source: Yaskawa GA700 Technical Manual, Yaskawa Electric

Category: PLC & VFD