YASKAWA LA500, Technical Manual, Page: 121 / 376

Standards
Compliance
5
5.2 European Standards
YASKAWA SIEPYEULA5001C LA500 Technical Manual 121
Figure 5.7 Symmetric Grounding
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 5.4 shows asymmetric grounding networks.
Table 5.4 Asymmetric Grounding
Type of Grounding Diagram
Grounded at the corner of the delta connection
Grounded at the middle of the side
Single-phase, grounded at the end point
Three-phase variable transformer without solidly grounded neutral
A - SW (ON) B - SW (OFF)
Screw Size
M3 × 20
Figure 5.8 EMC Filter Switch Location for Models 2018E, 4009E