Description of Function Codes
MD380 User Manual
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Chapter 6 Description of Function Codes
Group F0: Basic Parameters
Function Code Parameter Name Setting Range Default
F0-00 G/P type display
1: G type (constant torque load)
2: P type (variable torque load e.g. fan
and pump)
Model
dependent
This parameter is used to display the delivered model and cannot be modied.
• 1: Applicable to constant torque load with rated parameters specied
• 2: Applicable to variable torque load (fan and pump) with rated parameters specied
Function Code Parameter Name Setting Range Default
F0-01
Motor 1 control
mode
0: Sensorless ux vector control (SFVC)
1: Closed-loop vector control (CLVC)
2: Voltage/Frequency (V/F) control
0
• 0: Sensorless ux vector control (SFVC)
It indicates open-loop vector control, and is applicable to high-performance control
applications such as machine tool, centrifuge, wire drawing machine and injection
moulding machine. One AC drive can operate only one motor.
• 1: Closed-loop vector control (CLVC)
It is applicable to high-accuracy speed control or torque control applications such as
high-speed paper making machine, crane and elevator. One AC drive can operate only
one motor. An encoder must be installed at the motor side, and a PG card matching the
encoder must be installed at the AC drive side.
• 2: Voltage/Frequency (V/F) control
It is applicable to applications with low load requirements or applications where one AC
drive operates multiple motors, such as fan and pump.
• If vector control is used, motor auto-tuning must be performed because the advantages
of vector control can only be utilized after correct motor parameters are obtained. Better
performance can be achieved by adjusting speed regulator parameters in group F2 (or groups
A2, A3, and A4 respectively for motor 2, 3, and 4).
• For the permanent magnetic synchronous motor (PMSM), the MD380 does not support SFVC.
CLVC is used generally. In some low-power motor applications, you can also use V/F.
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