SV-iS7 User Manual - Inverter Drive Supermarket

3) How to set EMC Filter functions (11~22kW Products)
Chapter 4 Wiring
EMC filter ON/OFF set terminal is located in lower part of the 11~22KW Terminal as shown figure below. Initial set is
OFF. When the green wire is connected in upper metal connection terminal, EMC filter is ON and EMC filter is OFF if it
is connected in insulated connection terminal.
EMC filter ON EMC filter OFF
EMC filter has effect in reducing air electronic wave while being used in power source of symmetrical ground method.
Be sure to use EMC filter in symmetrical ground method such as Y connection.
Caution
Leakage current increases while EMC filter is ON. Do not use EMC filter when the input is asymmetrical way such as
Delta connection. It may cause an electric shock.
1 phase is grounded
in Delta connection
Grounded in single
phase end
Insulated terminal for
EMC filter OFF
Metal terminal for EMC filter
ON
Asymmetrical Ground structure
L
N
R(L1)
S(L2)
T(L3)
Grounded middle tap
of 1 phase in Delta
connection
Non-grounded 3
Phase connection
R(L1)
S(L2)
T(L3)
R(L1)
S(L2)
T(L3)
R(L1)
S(L2)
T(L3)
4-5