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User Manual of EM730/EM730E Series Inverter
30
f) Schematic Diagram of Terminals (380V, 132kW-160kW)
Fig.3-2 Schematic Diagram of Main Circuit Terminal Layout
3.2.2
Functions of main circuit terminals
The functions of the main circuit terminals of the EM730/EM730E series inverter are
shown in the following table. Please connect wires correctly according to the corresponding
functions.
Functions of main circuit terminals
Terminal label
Function description
R/L1, S/L2, T/L3
AC power input terminal, connected to three-phase AC power supply (the
single-phase power input terminal can be connected with any two terminals)
U, V, W
AC output terminal of the inverter, connected to three-phase AC motor
Positive and negative terminals of the internal DC bus, connected to external
braking unit
, PB
Braking resistor terminal, with one end of the braking resistor connected to
and
the other end to PB
P,
DC reactor terminal, for the external DC reactor of EM730/EM730E-090-3 and
above
Grounding terminal, connected to earth