Mitsubishi Electric MELSERVO EMC, Руководство по установке

Страница: 11 / 44

3 EMC COUNTERMEASURES
3.2 Cabinet design
9
3
4.
Securely ground the cabinet door to the cabinet. If the door is poorly grounded, the door itself becomes a large antenna
and radiates noise. Therefore, take the following measures.
• Use a metal door.
• Connect the door and cabinet with thick braided wire at as many points as possible.
• Use an EMI gasket and conductive packing for the joint between the door and cabinet.
5.
As a reliable noise countermeasure for input power cables, insulate the input power supply section with a metal shielding
plate and install it without gaps to prevent the input power cable from being affected by radiated noise.
Enforce conductance treatment on sections that the EMI gasket contacts.
Metal cabinet
Cabinet
EMI gasket
Conductive packing
Door
MCCB
Cabinet
Controller Servo amplifier
Shielding partition
AC input
Filter
Radiated noise