User Manual
EM303B General Purpose Inverter
81
8
Parameter Description
Section 1 General Parameters
8.1
F0 Group: General Parameters
No.
Function
Range
Unit Default Type
F0-00
(L)
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
0.0/0
0.00
X
F0-01
(H)
F0
-
00 and F0
-
01 are optional and for reference only. Their parameters are the setting value of
present drive mode. Symbol (-) shall be displayed if the value is negative. When the reference
input control mode is different, the data reflected 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
motor speed, its value is the present setting objective value of speed. When objective value is
reverse input, then symbol (-) shall be displayed.
Torque Reference Input Monitoring
The unit of F0-00/F0-01 is % which indicates that the present control object is the motor
torque. The value is the percentage of present objective torque current to motor rated torque
current. If the objective value is negative torque, then symbol (-) shall be displayed. 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 regulation is with low requirements for rapidity 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. When motor 0.5 Hz output reaches 150% rated torque, the
inverter will automatically search the load variables and limit 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, overcurrent would not occur, so that a general purpose inverter
can achieve high performance and reliability.
Remarks:
This mode is only applicable to speed control mode and not to torque control mode.
▲
F0-02=3 SVC1
: Vector control mode 1 (without speed feedback). It not only estimates
speed in real-time, but also controls feedback. Speed and current are under real-time
close-loop control all the time. The speed control and torque control can be achieved at the
