88 SUNFAR C300
C300 series of non-sensor current vector-control inverter manual
9.2 External control mode, external voltage setting frequency and
V/F control
9.2.1 Initial settings
1. When F0.0 is 0, V/F method is valid.
2. When F0.4 is 00#1, external terminals control is valid.
3. Setting X1-X3 are Multi-speed control terminals ([F3.0]~[F3.2])
。
4. Setting each speed running frequency
（
[F5.1]~[F5.7]
）
。
9.2.2 Basic wiring
9.2.3 Operation Notes:
FWD-GND is off
，
the motor will running forward. REV- GND is off, the motor will
running backward. FWD-GND and REV-GND are off or on at the same time, the
inverter will stop.
If X1, X2 and X3 are all opened with CM, the multi-speed running is invalid. The
inverter will run as the setting instruction speed. (The setting frequency channel is
selected by parameter F0.1)
If one terminal or all of X1, X2 and X3are connected with GND terminal, the inverter
will run as the multi-speed frequency selected by X1, X2 and X3.
M
Motor
U
W
V
R
S
T
FWD
REV
GND
AVO
GND
Voltmeter
（
0~10V
）
FWD
REV
E
Multi-speed
control terminals
X1
X2
X3
×
×
×
3-phase Breaker
Power
supply
Fig9-2 Basic wiring
Control method of terminals FWD and REV is set by parameter F0.5.
（
See
the explanation about parameter F0.5.
）
