Under-speeding

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This fault is recorded if the speed feedback falls below the permitted speed threshold for 0.5 seconds. The permitted speed is calculated as (Reference Speed - 0.25m/s) for reference speeds under 1.0 m/s, or (0.5 x Reference Speed) for reference speeds over 1.0 m/s.

• Malfunction of the speed feedback sensor, providing an inaccurate or excessively low speed reading.
• Insufficient motor torque or power output from the drive, preventing the lift from reaching the commanded speed.
• Excessive mechanical load on the lift, causing it to run slower than the reference speed.
• Incorrect setting of motor or drive parameters affecting speed regulation.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Verify the calibration and functionality of the speed feedback device (encoder) and check its signal integrity.

2. 2

   Inspect the motor for any mechanical issues or damage that could impede its performance.

3. 3

   Check the drive unit for proper operation, ensuring it provides sufficient current and voltage to the motor.

4. 4

   Measure the current drawn by the motor to identify potential overload conditions or inadequate power delivery.

5. 5

   Review all speed-related parameters in the control system, including acceleration/deceleration rates and reference speeds.