Control Fault
Deceleration Control Fault
Yaskawa · V1000 AC Drive
What does Control Fault mean?
The drive's internal torque limit was exceeded for longer than 3 seconds during a deceleration phase, specifically when operating in Open Loop Vector control mode. This typically indicates that the load inertia is too high, the torque limit is set too low for the application, or the motor parameters programmed into the drive are incorrect.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
Verify and correct all motor parameters (e.g., E2-01 to E2-06) configured in the drive to ensure they accurately match the connected motor's nameplate data.
Source: Yaskawa V1000 AC Drive
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