32
6 EMC COUNTERMEASURES AND EFFECTS
6.4 Connecting multiple servo amplifiers to one EMC filter
6.4
Connecting multiple servo amplifiers to one EMC
filter
Confirm the EMC standard compliance of the entire machine or equipment on customer side.
Selection method
When multiple servo amplifiers are connected to one EMC filter, if the total length of servo motor power cable is long, the
magnetic material used in the EMC filter may cause magnetic saturation and the expected noise attenuation properties may
not be obtained.
To obtain the expected noise attenuation properties for any servo amplifier, use an EMC filter that satisfies the following table
and calculation formula.
Molded-
case
circuit
breaker
Power
supply
Molded-
case
circuit
breaker
Magnetic
contactor
EMC filter
Servo amplifier
(First)
Main circuit
power supply
Control circuit
power supply
Servo motor power
cable length
Molded-
case
circuit
breaker
Magnetic
contactor
Servo amplifier
(Second)
Main circuit
power supply
Control circuit
power supply
Servo motor power
cable length
Molded-
case
circuit
breaker
Magnetic
contactor
Servo amplifier
(nth)
Main circuit
power supply
Control circuit
power supply
Servo motor power
cable length
Servo
motor
Servo
motor
Servo
motor
Содержание MELSERVO EMC
Страница 1: ...EMC Installation Guidelines Mitsubishi Electric AC Servo System ...
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