What are the models of 6~40w torque motor and driver?

The core control element of solid-state relay is bidirectional thyristor. One of the conditions for the conduction of bidirectional thyristor is that the conduction current must be greater than the thyristor maintenance current. The higher the rated current, the greater the maintenance current of the solid-state relay. The rated current of the common commercial solid-state relay is generally 10A. For example, the rated current of 90W motor is only 0.65a. There is a great difference between the two currents. The solid-state relay cannot be fully connected and the voltage drop is large. Therefore, the voltage at both ends of the motor will be less than 220V. Due to the low actual working voltage of the motor, the output torque will be smaller.

Because the working current of electromagnetic brake of 6-200w motor or electromagnetic brake motor is very small, according to the working principle of SSR solid-state relay, when the load current controlled by SSR solid-state relay is more than 3 times different from its rated current, the voltage drop of SSR solid-state relay is too large, the actual working voltage of electromagnetic brake of motor or electromagnetic brake motor is low, and the motor is weak due to low voltage; Due to the low voltage, the electromagnetic brake of the electromagnetic brake motor can not be pulled in normally, resulting in the brake can not be pulled in reliably. Release the brake.

Recommendations:

1) The rated current of solid-state relay is 3 times of the rated current of motor.

2) Db200e drive of our company is adopted.

3) If the start and stop are not frequent and there is no service life requirement, the intermediate relay can be selected.