Step 6 Disabling the EMC Filter for Power Sources with Asymmetrical
Grounding
Built-in EMC type of G100 400V has a EMC filter which prevents eclectromagnetic
interference by reducing radio emissions from the inverter.
EMC filter features is set to ‘On’ by factory default. Current leakage increases when
the EMC filter feature is used.
Asymmetrical Grounding Connection
One phase of
a delta
connection is
grounded
Intermediate
grounding point
on
one phase of a
delta
connection
End of a single
phase is
grounded
A 3-phase
connection
without
grounding
• Do not activate the EMC filter if the inverter uses a power source with an asymmetrical
grounding structure, for example a grounded delta connection. Otherwise it may cause
an electrical shock and result in personal injury or even death.
• Before opening the cover to start working, wait at least 10 minutes after the power is
disconnected and check that the DC voltage of the product is discharged using a
tester. Otherwise it may cause an electrical shock and result in personal injury or even
death.
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