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1. Display and Button Functions of Each Parts
Part names
■
Rear view (main unit)
LCD with backlight
■
Front view
Current Input terminals
+C1, C1: Input a circuit current.
+C2, C2: Input a circuit current.
+C3, C3: Input a circuit current.
MODBUS
®
RTU communication terminal
T/R+: MODBUS
®
RTU communication
transmission terminal
T/R-: MODBUS
®
RTU communication
transmission terminal
Ter: Termination terminal
(120
Ω termination when short
-circuited to
the terminal T/R-)
SLD: Shielded wire terminal (Ground resistance
100 Ω or less
)
Voltage Input terminals
P1, P2, P3, PN: Input a circuit voltage.
Auxiliary power input terminals
MA, MB: Connect to an auxiliary power.
: Ground terminal
(Ground
resistance: 100 Ω or less
)
Operation buttons (For details, refer to page 11.)