Yaskawa dv1: Z-phase pulse loss detection

Yaskawa Electrical Fault vfd

Model: GA700/A1000 | Code: dv1

Applicable Systems
GA700 GA500 A1000 V1000 J1000

Symptoms

Z-phase pulse loss detection

Possible Causes

  • PG option card or motor-side PG damaged
  • PG cable wiring incorrect or broken

Troubleshooting Steps

  • Check PG cable wiring and breaks; correct if needed
  • Ground PG cable shield properly
  • Restart drive
  • If fault persists, replace PG option card or PG

How to Reset

Reset by: 1) Correct the fault condition. 2) Press RESET button on operator panel. 3) Verify fault does not recur.

Related Yaskawa Fault Codes

Source: Yaskawa GA700 Fault Code Manual (jinxinservice.com)

Category: Electrical