济南江河数控

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江河数控、雕刻机

2013-07-05 15:23How to solve electromagnetic interference

Woodworking engraving machine electromagnetic signal interference problems, mainly the stepper motor and drive housing is not aluminum, titanium, magnesium alloy casing for magnetic shielding for highly sensitive receiving system to cause interference, it can not work, and pollution power, causing the control system SCM and PC can not communicate in more severe cases can cause SCM crash, preventing normal use. Electromagnetic interference problems arise how should we deal with it?

1、 installed on the AC power line filter to reduce pollution.

2、 Use shielded cable to reduce interference from the outside world on their own.

3、 Requirements grounded. Point grounding principle, mains filter, the drive PE ground (chassis backplane driver and insulation) and direction control pulse PULSE-DIR-short pulses lead after the motor ground wire cable between the drive and the motor protective cover, drive shielded wire are connected to the grounding screw on the chassis wall.

4 、to prevent cross. For example in a two-axis drive system on the same machine engraving drive chassis device location, try to increase the control cable and power cable (LN motor drive line) and the distance between the UVW.

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