P5
4.
Pin assignments
5.
CT installation
K
L on the bottom of split CT
indicates the current direction. If
the real current direction is
different from the mark K
L, the
negative value of power factor
will be obtained. After finishing
the CT installation, please confirm
if the safety lock buckle of the CT
is locked correctly.
CT input connector. CT_0/1/2/3/4/5 is used for 6 single-phase current
measurements. The terminal labeled W is for connection to the CT white (or
red) wire and the terminal labeled B is for connection to the CT black wire.
AC voltage input connector. AC+ and AC- are connected to the L-phase and
N-phase of the single-phase power supply. Normally, GND must be shorted
to AC-. If AC+ and AC- are used in the three-phase voltages (for line voltage
measurement), GND can be connected to the N-phase in order to minimize
the voltage measurement error. If the three-phase power supply does not
have an N-phase, GND can be connected to FG or shorted to AC-.
When connecting the wire to CT
and voltage input connectors,
the twin cord end terminal must
be used, and the dimensions
are recommended as the table.
Connector Type L (mm)
CT
6 ~ 7
Voltage
7
