Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Command Option Interface - Manual (Page 95)

3.10 Noise Control and Measures for Harmonic Suppression
3-49
3
Wi
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onne
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Connect the noise filter ground wire directly to the ground plate.
Do not connect the noise filter ground wire to other ground wires.
If a noise filter is located inside a control panel, first connect the noise filter ground wire and the
ground wires from other devices inside the control panel to the ground plate for the control panel,
then ground the plates.
Shielded
ground wire
Noise
Filter Noise
Filter
Converter SERVOPACK Converter SERVOPACK
Ground plate Ground plate
Incorrect Correct
P
N
N
P P
N
N
P
Control Panel
Ground
Ground plate
Noise
Filter
P
N
P
N
P
N
P
N
Converter
Converter
SERVOPACK
SERVOPACK