Servo systems play a crucial role in automated equipment. Within their rated speed range, servos provide constant torque output and incorporate various feedback adjustments to ensure operational and torque accuracy. Full-featured servo controllers offer over three control modes, each with different control methods. Therefore, how should we wire the circuit and adjust the parameters for each control mode?
1: Position control mode. This is the most commonly used servo control mode. We can use the servo controller to control the servo to move to different working positions. To achieve the control requirements, we need to understand its hardware wiring and its corresponding parameter debugging.
Position control wiring diagram
According to the wiring diagram, the servo motor is powerful, with many pins and functions. However, we can connect only some of the pins according to our needs. (Pin 7 needs to be connected to 12~24V, and pins 41 and 29 must be shorted to 0V.) If we are using a PLC to control the servo motor, and we connect pins 3, 4, 5, and 6, then we need to short pins 3 and 5 to 24V, and connect pins 4 and 6 in series with a 2KΩ resistor, then connect them to the PLC's pulse output and direction output terminals respectively. If we are using pins 1, 4, 2, and 6, then we don't need to use the series resistor. So, after connecting the wires, which parameters of the servo motor do we need to change?
Position control parameter adjustment
For parameter settings, please refer to the servo's comprehensive manual.
2: Speed Control Mode. This mode is used less frequently. In this mode, the servo controller functions like a frequency converter, controlling the servo's running speed using analog signals. Its hardware wiring diagram is shown below:
Speed control wiring diagram
In this control mode (pin 7 must be connected to 12-24V, and pins 41 and 29 must be shorted to 0V), we can connect a 0-10V voltage to pins 14 and 15. After setting the relevant parameters, we can control the motor speed by changing the 0-10V voltage. Note that while we can stop the motor by setting the voltage to 0V, the analog signal is usually not completely zero. Therefore, we can control pin 26; connecting pin 26 will stop the servo. To use this function, Pr315 needs to be set to 1 and then saved to the driver.
Speed control mode parameter settings
The specific settings for these parameters depend on your individual usage. Please refer to the user manual for more detailed explanations.
3: Torque control mode. Here, I'll provide a simple wiring diagram and servo debugging parameter diagram for your reference!
