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AC90 TENSION CONTROL FREQUENCY INVERTER MANUAL
Chapter 9 Function Parameter specifications
9.1 Basic parameters
F0.00
Control way
0: VC without PG means vector control mode without speed sensor. It is used for all variable speed control. Please set
this mode while need high accurate speed control.
Under this mode, even no motor feedback signal, torque cans response quickly. The motor can gain large torque even
at low running speed.
1: V/F without PG control voltage/frequency ratio all can change speed. It is especially suitable for one frequency drive
multi-motor application. It improves the current speed control system.
This mode is used for all speed control system while quick response and right speed control are unnecessary, or motor
not clear or can't self study.
2: VC with PG means vector control mode with speed sensor. This mode is used for all speed control system that
torque response is quick and needs high performance torque control. It can be for high accurate speed control to 0
speeds. To receive motor speed feedback signal, please use optional PG card.
It is mainly used for application requires strict control performance, such as: high accurate speed control system, high
accurate torque control, simple servo control and so on.
3: V/F with PG can be used for simple speed feedback control. Please set this mode when need slow respond, but
right speed control, especially occasions that PG feedback does not install on motor spindle, or occasions that motor
not clear or can't self study.
Note: 1. PG: usually means photoelectricity inspects speed pulse encoder. While use other speed inspect card,
other sensor can be used for speed feedback.
2. While choose VC control mode, before the first running, it has to input right motor parameters and
motor parameters self adjust to gain right motor parameter. Please refer to details of F5 parameter
groups.
3. Rightly setting VC control parameters to ensure good stabile and dynamic control performance. For
VC control parameter setting and adjustment, please refer to details of F6 parameter groups.
4. While choose VC control mode, all inverters can only drive one motor, and the capacitance rating
difference between the inverters and the motor can't be too large. The inverter can be 2 rating bigger
or 1 rating smaller than the motor. Otherwise, it will descend the control performance. Or the drive
system can't run normally.
5. While choose VC with PG or V/F with PG control, must rightly set [F5.15--F5.17] parameters.
6. While choose V/F control mode must rightly set V/F control parameters F8.
F0.01
Control mode
0: Speed mode. Frequency control motor speed by control output frequency to control system speed.
Under vector control way, take speed precision control as aim to improve the motor features. For heavy load, the
inverter output is controlled by the vector operation, so as to enhance the torque to change the output torque of the
motor. For lighter loads, the inverter will quickly reduce output in order to ensure that the motor speed.
The inverter drives motor as ACC/DEC time setting to start. While accelerate to start, it ensures the fixed torque of the
motor, at the same time ensures a smooth deceleration of motor torque while slow down.
The motor speed is determined by the inverter output frequency; Inverter maximum output torque is determined by the
[F6.11]. Under speed control, the giving frequency settings and adjustments see parameters [F0.03 to F0.07].
Under vector control and speed control mode, response speed of the inverter to the external load changes can be
improved by adjusting the ASR (speed loop), see parameter [F6.00 to F6.10].
Setting range: 0-3
Setting range: 0-1
71
Function Parameter specifications
Factory set: 0
Factory set: 1
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