Description of Function Codes
MD380 User Manual
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Chapter 6 Description of )unction Codes
Group )0: %asic Parameters
)unction Code Parameter Name Setting Range Default
)0-00 G/P
type display
1: G type (constant torque load)
2: P type (variable torque load e.g. fan
and pump)
Model
dependent
7KLVSDUDPHWHULVXVHGWRGLVSOD\WKHGHOLYHUHGPRGHODQGFDQQRWEHPRGL¿HG
$SSOLFDEOHWRFRQVWDQWWRUTXHORDGZLWKUDWHGSDUDPHWHUVVSHFL¿HG
$SSOLFDEOHWRYDULDEOHWRUTXHORDGIDQDQGSXPSZLWKUDWHGSDUDPHWHUVVSHFL¿HG
)unction Code Parameter Name Setting Range Default
)0-01
Motor 1 control
mode
0: Sensorless Àux vector control (S)VC)
1: Closed-loop vector control (CLV
C)
2: Vo
ltage/)requency (V/)) control
0
6HQVRUOHVVÀX[YHFWRUFRQWURO6)9&
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.
9ROWDJH)UHTXHQF\9)FRQWURO
It is applicable to applications with low load requirements or applications where one AC
drive operates multiple motors, such as fan and pump.
Note
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. %etter
performance can be achieved by adjusting speed regulator parameters in group )2 (or groups
A2, A3, and A4 respectively for motor 2, 3, and 4).
)or the permanent magnetic synchronous motor (PMSM), the MD380 does not support S)VC.
CLVC is used generally. In some low-power motor applications, you can also use V/).
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