The message "UPA Controlled stop threshold is reached" in Schneider ATV950 drive indicates a fault condition related to the drive's internal undervoltage protection (UPA). This means the voltage feeding the drive has dropped below a critical level, triggering a controlled stop of the motor.

"UPA" "Controlled stop threshold is reached" warning on a Schneider ATV950 drive indicates that the drive has detected a condition where it needs to initiate a controlled stop. This could be due to various reasons such as safety concerns, operational limits, or specific process requirements.