Yaskawa UL3: Undertorque detection

Yaskawa Electrical Fault vfd

Model: GA700/A1000 | Code: UL3

Applicable Systems
GA700 GA500 A1000 V1000 J1000

Symptoms

Undertorque detection

Possible Causes

  • Undertorque detection

Troubleshooting Steps

  1. Step 1: Check load conditions; verify torque detection parameters (L6-02/L6-03); check motor coupling.
    Fault resolved after action

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 A1000 Fault Code Manual (jinxinservice.com)

Category: Electrical