YASKAWA GA800 Technical Reference page 262

5.2 European Standards
5.
Connect an AC reactor or DC link choke to decrease harmonic distortion. Refer to
270 to select a DC link choke.
Note:
• To maintain compliance with IEC/EN 61000-3-2 on drive models 2004, 2006, 4002, and 4004, install a DC link choke.
• The terminal block for the drive main circuit and the terminal block for the DC link choke have different shapes. The drive has a
European-style terminal block, and the DC link choke has a round terminal block. Correctly prepare the ends of the wiring.
• Ground the DC link choke (option) on the back of the mounting base. Remove all paint from the mounting surface of the control
panel.
Ground Wiring
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 2xxxB/C and 4xxxB/C 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.
Enable the Internal EMC Filter
On drive models 2xxxB, 2xxxC, 4xxxB, and 4xxxC, move the screw or screws to turn ON and OFF (enable and
disable) the EMC filter.
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. The EMC filter switch screw or 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 drive models 2xxxB/C and 4xxxB/C 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: Damage to Equipment. 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. If you do not disable the
built-in EMC filter, it will cause damage to the drive.
Table 5.9 shows asymmetric grounding networks.
262
Figure 5.9 Symmetric Grounding
DC Link Chokes on page
YASKAWA SIEPC71061737D GA800 Drive Technical Reference