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SUNFAR C300 9
C300 series of non-sensor current vector-control inverter manual
3.2 Wiring of External Components
z
Power
Supply
It is according to the rated input power specifications in manual.
z
Air-break
switch
1. When the inverter is in maintenance or leave-unused, the air-break switch should
isolate the inverter from power supply.
2. Input side of inverter takes place the fault of short-circuits or low-voltage, the
air-break would take the protection.
z
Contactor
Control the power-on or power-off of inverter expediently.
z
AC electric reactor
1. Improve the power factor.
2. Reduce the harmonic wave input for the electric network.
3. Weaken the imbalance effect on 3-phase power voltage.
z
Brake
resistor
In situation of the regenerative braking, avoiding bringing voltage too highly.
R / L1
S / L2
T
U
V
W
C300
P+
PB
Fig.3-2 wiring
1 . Re fer to the inst ructio n manu al before in stallation
a nd opera tion.
2. D O not conne ct AC pow er to output term inals
UVW .
3 . Isolate from supp ly an d wa it 10 minutes be fore
remov ing this c over.
4. Sec urely ground(earth ) the equipm ent.
CAUT ION
Air Breaker Switch
Circuit
Breaker
AC Electric
Reactor
Motor
AC Power