YASKAWA HV600 Series Installation & Primary Operation page 87

Enable the Internal EMC Filter
Move the screws to turn ON and OFF (enable and disable) the EMC filter.
Make sure that the symmetric grounding network is applied, and install the both screws in the ON position to enable
the built-in EMC filter in compliance with the EMC Directive. The EMC filter switch screws are installed in the OFF
position by default.
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 the drives 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.
NOTICE When you use the drive with a non-grounding, high-resistance grounding, or asymmetric-grounding network, put
the EMC Filter screw or screws in the OFF position to disable the built-in EMC filter. Failure to obey the instructions can damage the
drive.
Table 13.6 shows asymmetric grounding networks.
Type of Grounding
Grounded at the corner of the delta connection
Grounded at the middle of the side
YASKAWA TOEPC71061732E HV600 Drive Installation & Primary Operation
Figure 13.6 Symmetric Grounding
Table 13.6 Asymmetric Grounding
13 European Standards
Diagram
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