SUNFAR C300 3
C300 series of non-sensor current vector-control inverter manual
1.4 Specifications
Rated voltage and freq.
Three-phase
（
4T****
）
380V
；
50/60Hz
Single-phase
（
2S****
）
220V
；
50/60Hz
Input
Permissible voltage
fluctuation
Three-phase
（
4T****
）
320V ~ 460V
Single-phase
（
2S****
）
170V ~ 270V
Voltage
Three-phase
（
4T****
）
0 ~ 380V
Single-phase
（
2S****
）
0~220V
Frequency 0~600Hz
Output
Over-loading Endurance
110% rated current for long-term
；
150% rated
current for 1min
；
180% rated current for 2s
Control System
V/F control
、
Sensorless current vector control
Analog Input
0.1% of maximum output freq.
Freq.
Control
Resolution Digital Input
0.01Hz
Analog Input
Within 0.2% of maximum output freq.
Freq.
Precision
Digital Input
Within 0.01% of setting freq.
V/F curve
Reference freq. can be discretionally set between 5
and 600Hz. And V/F curve with multi-mode can be
discretionally set. There are also three curves
provided, Constant torque curve, Dec torque curve 1
and Dec torque curve 2.
Torque boost
Manual torque boost can be set between 0 and
20 percent
；
Automatic torque boost can be set according to
output current.
V/F control
Automatic
current/voltage
limiting
It will determine automatically the current and voltage of
stator of motor, which will be controlled within the
allowable range.
Volt/Freq
characteristics
Automatically adjust the ration of voltage to frequency
according to the parameter of motor and unique
arithmetic.
Torque
characteristics
While freq equals 1, the torque is 150% rated torque. The
lasting accuracy is 0.1%
Motor’s
parameter
self-detection
The motor’s parameter self-detection can finish in
static state mode.
Control
Charac-
teristics
Sensorless
Current
vector
control
Current / voltage
Restraint
Current close-circuit control can avoid the
current attack.
