Check Hardware Connections

Description

When you try to run the motor, you may face problems due to incorrect hardware connections. This may result in rise in temperature of the motor, inverter, hardware board or an abnormal behavior such as uncontrolled motor speed.

Action

Verify Hardware Connections

Check the wiring and connections before getting started. For details, see Hardware Connections. For instructions to determine the serial port connected to the hardware, see Find Communication Port.

Manually Check Rotation of Shaft

Verify that the shaft of your motor is rotating freely with minimal rotational friction. A mechanical failure in the bearings may result in thermal overloads, which can damage the motor windings.

Verify Rated Currents for Motor and Inverter

Determine the rated currents of the motor and inverter from the manufacturer datasheet. Ensure that you do not overload the motor for durations longer than what the original equipment manufacturer (OEM) has specified.

Check Motor and Inverter Temperature

Ensure that the temperature of the motor windings and inverter heat sink are within the expected temperature range. Overloading the hardware results in excessive heat that can damage the hardware.

Verify Measurements from Analog Circuits

Verify the range of the signals that you measure from the analog circuits (for example, the maximum current of the inverter).

Check for Additional Resistors

After you complete the process of estimating the motor parameters, you should not change the motor connections because this leads to differences in the contact and cable resistances. In addition, verify that the initialization script of the model takes into consideration any additional resistors present in the power circuit.

Verify Fault Pin and Enable Pin Connections

Check and verify that the fault pins and enable pins are connected correctly on the target hardware board.