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In servo system, do you know what should be paid attention to when grounding servo drive?
Eight points to note for grounding of servo drives are as follows:
The correct shielding connection is at a reference potential point inside the circuit, which depends on whether the noise source and the receiver are both grounded or floating.
Make sure that the shield is grounded at the same point so that the earth current does not flow through the shield.
Avoid a variety of connection to the earth generated by the ground loop is easily affected by noise and generate current at different reference points.
When the AC power supply is not isolated from the DC bus of the driver, do not connect the non-isolated port or signal of the DC bus to the ground, which may cause device damage and personal injury.
Avoid servo drive to external power supply, will directly affect the work of the controller and the driver.
The common voltage of AC is not to the ground. There may be a high voltage between the DC bus and the ground. Direct grounding is prohibited.
In the servo system, the public ground and the earth must be connected together at the signal end.
In order to keep the command reference voltage constant, to the servo driver signal ground to the controller signal ground.