PMSM (Permanent Magnet Synchronous Motor) Drive Controller

A1: For the input signals, connect the PLC's output point (Y) to the drive controller's input points (RUN/STOP/CW...) and connect the PLC's COM to the drive controller's -COM point. For the output signals, an external DC power supply voltage is required. Connect the PLC's input point (X) to the drive controller's output point (S.O/A.O) and connect the PLC's COM to the drive controller's -COM point.

A2: The main adjustable resistor specification is 20KΩ 1/4W, and the fine adjustment resistor specification is 50KΩ 1/4W. Ensure that the number of parallel-operated drives does not exceed 20 units.

Inverter

A1: Parameters cannot be entered while the inverter is running. Check if the start signal is present.

A2: Adjust the carrier frequency Pr72 (increase it).

A3: 1、It is not recommended to design it this way because in this wiring configuration, the inverter cannot monitor the current condition of each motor, thus unable to provide protection. Additionally, the load status (imbalance) of multiple motors may cause mismatch issues.
2、If it must be done, the capacity of the inverter should exceed the total capacity of all motors, and each motor should have its own thermal relay protection installed.
3、When operating multiple motors, use the V/F control mode, and ensure that the total length of the power line wiring from the inverter to each motor complies with the specifications in the manual.

System Solution

A1: In addition to the sensors introduced in the Smart IoT control system, it can also be combined with infrared emitter-controlled appliances, remote-controlled smart locks, voice-controlled home appliances via smart speakers, or integrated with central control units in buildings, among many other applications. For further integration needs, please feel free to contact us.

A2: Yes, parameters can be adjusted from the "Settings" section on the monitoring software interface.

A3: PID (Proportional-Integral-Derivative) controller consists of proportional unit P, integral unit I, and derivative unit D. It adjusts input values based on the settings of parameters Kp, Ki, and Kd. PID controllers are primarily suitable for systems with basic linear and dynamic characteristics that do not vary over time. By adjusting input values based on historical data and the rate of change, PID controllers enhance system accuracy and stability. Mathematically, it has been proven that while other control methods may lead to stable errors or process oscillations, a PID feedback loop can maintain system stability.

A4: The environmental smart monitoring system is suitable for spaces where extensive pipeline construction is unnecessary, and remote operation reduces labor costs. It is ideal for environments that prioritize safety, require monitoring, and seek to simplify installation costs, such as homes, healthcare facilities, long-term care centers, various commercial buildings, offices, factories, warehouses, schools, and other similar settings.