Mitsubishi Electric FR-F820-00046, Instruction Manual

Page: 122 / 940

Electro-magnetic interference (EMI) and leakage currents Precautions for use of the inverter
3 - 8
Data line filter
Data line filter is effective as an EMI countermeasure.
Provide a data line filter for the detector cable, etc.
The impedance values above are reference values, and not guaranteed values.
EMI countermeasure example
Example Data line filter: ZCAT3035-1330 (by TDK)
ESD-SR-250 (by NEC TOKIN)
Impedance (
Ω
)
10 to 100 MHz 100 to 500 MHz
80 150
Tab. 3-5: Impedance (ZCAT3035-1330)
I002418E
Fig. 3-5: Outline dimension drawing (ZCAT3035-1330)
I002419E
Fig. 3-6: Noise reduction examples
NOTE For compliance with the EU EMC Directive, refer to the Installation Guideline.
34 1
TDK
39 1
30
1
13
1
Lot number
Product name
Cable fixing band mount
[Unit: mm]
Inverter
Enclosure
Control
power
supply
Sensor
M
3~
Motor
Inverter
power
supply
Do not earth (ground) shield but connect it to signal
common cable.
Use a twisted pair shielded cable
EMC filter
Use 4-core cable for motor power cable and
use one cable as earth (ground) cable.
Install filter (FR-BLF, FR-BSF01)
on inverter output side.
Decrease carrier frequency
Separate inverter and
power line by more than
30 cm (at least 10 c m)
from sensor circuit.
Power
supply for
sensor
Do not earth (ground) control cable.
Do not earth (ground)
enclosure directly.
FR-BLF