Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Manual (Page 81)

3.8 Noise Control and Measures for Harmonic Suppression
3-37
Wiring and Connection
3.8.2 Precautions on Connecting Noise Filter
This section describes the precautions on installing a noise filter.
(1) Noise Filter for Brake Power Supply
Use the following noise filter at the brake power input for 400 W or less servomotors with holding brakes.
MODEL: FN2070-6/07 (Manufactured by SCHAFFNER Electronic.)
(2) Precautions on Using Noise Filters
Always observe the following installation and wiring instructions.
Do not put the input and output lines in the same duct or bundle them together.
Separate the noise filter ground wire from the output lines.
Do not put the noise filter ground wire, output lines and other signal lines, in the same duct or bundle
them together.
Some noise filters have large leakage currents. The grounding measures taken also
affects the extent of the leakage current. If necessary, select an appropriate leakage cur-
rent detector or leakage current breaker taking into account the grounding measures that
are used and leakage current from the noise filter. Contact the manufacturer of the noise
filter for details.
Ground plate
Ground plate
Ground plate
Ground
plate
Noise
Filter
Noise
Filter
Separate these circuits.
Noise
Filter
Wrong Correct
Noise
Filter
Ground plate Ground plate
Noise
Filter Noise
Filter
The ground wire
can be close to
input lines.
Wrong Correct