Omron SYSDRIVE 3G3MV - Page 63

2-40
H Wiring Frequency Reference Input Terminals
WirethefrequencyreferenceinputterminalsFRandFCasdescribedbelow forexecut-
ing frequency references with the D/A Unit for digital-to-analog data conversion or
external power supply.
D Wires Used
Useshielded,twisted-pairwiresfor wiringinorder topreventtheInverter frommalfunc-
tioning due to noise.
Wire type Wire size Wire to be used
Single wire 0.5 to 1.25 mm
2
Polyethylene-shielded cable
f
o
r
m
e
a
s
u
r
e
m
e
n
t
u
s
e
Stranded wire 0.5 to 0.75 mm
2
P
o
l
y
e
t
h
y
l
e
n
e
-
s
h
i
e
l
d
e
d
c
a
b
l
e
for measurement use
D 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 Makesurethatthewiresizeis0.5mm
2
whenusingthefollowingsolderlesstermi-
nal.
1.0 dia.
2.6 dia. (Size: mm)
Model: Phoenix Contact’s A1 0.5-8 WH
D Wiring Method
·The wiring method for the frequency reference input terminals is the same as that of
the control I/O 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.
·Covertheshieldwithtapesothattheshield willnotcomeintocontact withothersignal
wires or machines.
Design Chapter 2