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1. The relationship between stepper motors and relays
are controlled electronically to achieve precise position control and motion control. The stepper motor can be directly connected to the power supply and the rotation is controlled by controlling the voltage, so in theory there is no need to use a relay.
However, in actual use, it is necessary to use relays in some cases. For example, when a larger current needs to be used to start or stop a stepper motor, a relay can be used to provide auxiliary control of the motor. In addition, if direct control of the stepper motor will have a negative impact on the main control board or high level, using a relay can play a role in isolation and protection.
2. Matters needing attention
2.1 When selecting a relay, you need to consider that the rated voltage and current of the relay must match the actual voltage and current of the stepper motor, otherwise it will easily cause failure to operate normally.
2.2 A suppression circuit needs to be added between the relay and the stepper motor to reduce possible electromagnetic interference and ensure the stability and reliability of the system.
2.3 The quality of the relay and suppression circuit directly affects the performance and life of the stepper motor, so it is necessary to choose better quality hardware equipment.
In summary, the use of relays can enhance the control capability of the stepper motor and the reliability of the system, but the actual needs of the system and the quality of the hardware equipment need to be considered when selecting relays and suppression circuits.
Article source: https://article-realm.com/article/Reference-Education/63819-Does-a-Stepper-Motor-Need-to-Use-a-Relay.html
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