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FOR REFERENCES ONLY
2.2.1
Standard connection diagram 1
This diagram shows a standard wiring of the main circuit.
2
Main circuit power supply
3ph-400V class: three-phase 380-460V
*1: VFNC3C-4004P, 4007P models don't
have the PA/+ and the PB terminals
and cannot be used with Braking
resistor.
*2: When using the OUT output terminal in
sink logic mode, short the NO and CC
terminals.
*3: When external potentiometer is connected
by using P5 terminal, set the parameter
f 1 0 9 =3 .
*4: When VI terminal is used as a logic
input terminal, refer to page B-10.
VFNC3C ENGLISH MANUAL
Standard connection diagram - SINK (Negative) (common:CC)
MCCB
R/L1
S/L2
T/L3
-50/60Hz
FLA
Protective function
FLB
activation output
FLC
FM
+
Meter
Frequency
m eter
(am m eter)
-
7.5V-1mA
(or 0-10V/4-20mA)
B-4
NOT SUBJECTED FOR RESALE
Braking resistor（Option） *1
PA/+
PB
Power
W/T3
circuit
Control
circuit
F
VF-nC3C
R
S1
S2
CC
Operation panel
P24
OUT
RS485
communication
NO
connector
*2
*4
CC
CC
VI
P5
+
Voltage signal: 0-5V/0-10V
-
(Current signal: 4-20mA)
*3
External potentiometer (1k-10k)
2
Motor
U/T1
V/T2
I M
Forward
Reverse
Preset-speed 1
Preset-speed 2
Common
Low-speed
signal output
Ry
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