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B. Interconnection diagrams for filters S3 series and H3 series
S3 series interconnection
Power Sppply
L1
L2
TM2
T1
T2
T3
L´
N´
L
N
PE
U
V
W
G
3 IM
Main Transformer
MCCB
Power Port
EMI
FILTER
S3 -
SERIES
Metal plate or panel
Earth Port
Earth
Remote control
switches, relay or
similar eqipments
Power Drive System (PDS)
H3 series interconnection
Power Sppply
L1
TM2
T1
T2
T3
L1
L2
L2
L1
L2
PE
U
V
W
G
3 IM
Main Transformer
MCCB
Power Port
EMI
FILTER
H3 -
SERIES
Metal plate or panel
Earth Port
Earth
Remote control
switches, relay or
similar eqipments
Power Drive System (PDS)
L3
L3
L3
ADDITIONAL PRECAUTIONS TO LIMIT EMI AND RFI
1. Earth
1.1 For inverters:
In any cubicle, a single low-impedance earth point or busbar is required in order to put to earth
directly and independently for varied circuit.
Inverter itself must have put to earth independently, no other equipment should share the earth
connection of inverter ( except motor); all circuits have to connect to external earth through
copper
bar.
