Omron SYSDRIVE 3G3JV Series User Manual page 39

Design
Wiring Frequency Reference Input Terminals
Wire the frequency reference input terminals FR and FC as described below for execut-
ing frequency references with the D/A Unit for digital-to-analog data conversion or ex-
ternal power supply.
Wires Used
Use shielded, twisted-pair wires for wiring in order to prevent the Inverter from malfunc-
tioning due to noise.
Wire type
Single wire
Stranded wire
Solderless Terminals for Frequency Reference Input Terminals
The use of solderless terminals for the frequency reference input terminals is recom-
mended because solderless terminals are easy to connect securely.
Note Make sure that the wire size is 0.5 mm
nal.
Wiring Method
The wiring method of the frequency reference input terminals is the same as that of the
control circuit terminals.
Always separate the control signal line from the main circuit cables and other power
cables.
Connect the shield to the ground terminal of the Inverter. Do not connect the shield to
the load.
Cover the shield with tape so that the shield will not come into contact with other signal
wires or machines.
Wire size
2
0.5 to 1.25 mm
2
0.5 to 0.75 mm
2
1.0 dia.
Model: Phoenix Contact's A1 0.5-8 WH
2.6 dia. (Size: mm)
Wire to be used
Polyethylene-shielded cable o yet y e e s e ded cab e
for measurement use f
when using the following solderless termi-
Chapter 2
t
2-31