User Manual
EM303A General Purpose Inverter
77
7
Parameter Description
7.1
Group F0: General Parameters
No.
Function
Range
Unit
Default
Type
F0-00
Speed Reference
Input Monitoring
Torque Reference
Input Monitoring
Frequency:0.00
～
Fmax/0.0
～
Fmax
Speed: 0
～
F*Customer defined scaling
Torque input:0.00~Limited Torque
Hz
rpm
%
0.00
0.0
0.00
×
F0-01
F0
-
00 and F0
-
01 are optional, and only for reference. Their parameters are the
setting values in present control mode. Symbol “-” shall be displayed if the value is
negative. When the reference input control mode is different, the unit indicated by
F0-00/F0-01 is also different.
Speed Reference Input Monitoring
The unit of F0-00/F0-01 is Hz or rpm which indicates that the present control object
is the speed of motor, its value is the present setting objective value of speed. When
objective value is reverse input, then “-” shall be displayed.
Torque Reference Input Monitoring
The unit of F0-00/F0-01 is % which indicates that the present control object is the
torque of motor. The value is the percentage of present objective torque current in
motor rated torque current. If the objective value is negative torque, then the “-”sign
appears. The setting mode of torque reference input is active only in SVC1.
No.
Function
Range
Unit
Default
Type
F0-02
Drive Control Mode
0: V/F open loop control
1: Not used
2: SVC0
3: SVC1
2
〇
F0-02=0 V/F Open Loop Control:
Applicable to the occasions when one inverter
drives multi-motor, and speed regulations without high requirements for speed and
accuracy.
▲
F0-02=2 SVC0
: Vector control mode 0 (without speed feedback). It only estimates
real-time speed, but no feedback control. The whole process of output current is
under real-time close-loop control. Motor 0.5 Hz output reaches 150% rated torque,
inverter will autosearch the load variables, and autolimit the output current to make
it not exceed the permitted maximum current. Even if load varies suddenly, or there
is a quick acceleration or deceleration, inverter will trip overcurrent, so that a
general inverter can achieve high performance and reliability.
