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4.
Ground the wire shielding on the drive side and motor side.
A - Drive
B - 10 m (32.8 ft) maximum
C - Motor
Note:
• Use a braided shield cable for the drive and motor wiring or put the wires through a metal conduit.
• The maximum wiring length between the drive and motor is 10 m (32.8 ft). Keep the wire as short as possible.
• Keep the grounding wire as short as possible.
• Contact Yaskawa or your nearest sales representative to comply with European standards EN 12015 and EN 12016.
5.
Use a cable clamp to ground the motor cable to the metal plate.
Note:
Make sure that the protective ground wire complies with technical specifications and local safety standards.
6.
Connect an AC or DC reactor to decrease harmonic distortion.
Note:
Contact Yaskawa or your nearest sales representative for information about AC or DC reactor selection for EN 12015
compliance.
Enable the Internal EMC Filter
On drive models 4xxxC, move the screw or screws to turn ON and OFF (enable and disable) the EMC filter. The
EMC filter switch screw or screws are installed in the OFF position by default.
Make sure that the symmetric grounding network is applied, and install the screw or screws in the ON position to
enable the built-in EMC filter in compliance with the EMC Directive.
WARNING
Electrical Shock Hazard. Disconnect all power to the drive, wait for the time specified on the warning label,
and check the drive for dangerous voltages before you remove covers or touch EMC filter screws. If you touch the screws when
there are dangerous voltages, it will cause serious injury or death.
WARNING
Electrical Shock Hazard. Do not remove covers or touch circuit boards while the drive is energized. If you
touch the internal components of an energized drive, it can cause serious injury or death.
WARNING
Electrical Shock Hazard. Ground the neutral point on the power supply of drive models 4xxxC to comply with
the EMC Directive before you turn on the EMC filter. If you turn ON the EMC filter, but you do not ground the neutral point, it can
cause serious injury or death.
WARNING
Electrical Shock Hazard. Connect the ground cable correctly. If you touch electrical equipment that is not
grounded, it can cause serious injury or death.
NOTICE
To disable the internal EMC filter, move the screws from ON to OFF and then tighten to the specified torque. If
you fully remove the screws or tighten the screws to an incorrect torque, it can cause drive failure.
NOTICE
Move the EMC switch screw or screws to the OFF position for networks that are not symmetrically grounded.
If the screws are not in the correct position, it can cause damage to the drive.
Make sure that the symmetric grounding network is applied, and install the screw or screws in the ON position to
enable the built-in EMC filter in compliance with the EMC Directive.
40
D - Metal conduit
E - Grounding wire
Figure 1.13 Wiring the Drive and Motor
Figure 1.14 Symmetric Grounding
YASKAWA TOMPYEULA7002A LA700 Series Installation and Operation Instruction
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