Do you know how to test a servo motor? Some customers have reported that they don't know how to test a servo motor after purchasing it. Below are the correct steps for testing a servo motor:
First, test the motor. No circuit connection is needed. Short-circuit any two of the motor's three wires together, and rotate the motor shaft by hand. If you feel resistance, then it's OK.
The second step is to connect the driver to the power supply according to the diagram (for example, if a voltage regulator is used, adjust it from 100V to 220V, in case the driver is 100V). Power on the driver. The driver is normal and an error message is displayed. According to the manual, it shows an error message indicating that the encoder is faulty, which is normal since the encoder has not been connected yet.
The third step is to connect the encoder and turn on the device again; no errors are displayed.
The fourth step is to configure the driver according to the instruction manual. For example, if you set it to "speed control mode" and then rotate the potentiometer, the motor won't turn. Following the instructions, adjust the toggle switch, and finally, after toggling "Servo-ON," the motor immediately locks in place. OK! Then, rotate the potentiometer to apply voltage to the SPR/TRQR input pin. Great! The motor starts turning. The servo driver's RPM reached 1000, 2000, 3000, and eventually over 4000. The instruction manual recommends 3000 RPM; higher speeds may cause some problems.
The fifth step involved resetting the servo driver to "position control mode." The motion control card (or a MACH3 connected to the computer's parallel port) was then connected to the pulse and direction interfaces, and the motor started rotating! At an output rate of 500Kpps, the driver displayed 3000rpm. Both forward and reverse rotation were automatically controlled.
Finally, adjust the motion control card and the small connection board. The LED array on the board is for testing the output, the socket connects to the two-phase encoder, the other socket outputs pulses/direction, and the switches and buttons are for testing I/O inputs.
