Notes for Servo Drive Cable Connection
8 precautions of servo drive ground wiring are as following:
① The correct shield ground wiring,is located at the reference electric point inside its circuit, which depends on the noise source and the reception whether ground at the same time,or float.
② Make sure that the shield is grounded at the same point so that the ground current does not flow through the shield.
③ to avoid a variety of ways to connect the earth to produce ground loop is susceptible to noise,then generate current at different reference points.
④ In the case where there is no isolation between the AC power supply and the driver DC bus,can not connect the non-isolated port of the DC bus or non-isolated signal to the ground,it will lead to equipment damage and personal injury and so on.
⑤ Avoid the servo drive connected to the external power supply, will directly affect the controller and servo drive work.
⑥ Exchange public voltage is not for the earth,between the DC bus and the earth may have very high voltage, prohibit straight connect
to ground.
⑦ in the servo system, the public and the earth must be connected at the signal side.
⑧ In order to keep the command reference voltage constant, the signal ground of the servo driver is connected to the signal ground of the controller.