7 - 3
7 Advanced Settings
High-function General-purpose Inverter RX2 Series User’s Manual
7-1 Overview of
Mot
o
r Co
ntro
l Meth
o
d
s
7
7-1
Overview of Motor Control Methods
Select an appropriate motor control mode for the motor to be driven and the control method.
When you drive an induction motor (IM), set [AA121]=00 to 10.
Set [AA121] = 11 or 12 to drive a synchronous motor (SM)/permanent magnet motor (PMM).
The characteristics of the control operation may be improved by automatic tuning.
Whether the currently-selected mode is the control mode for induction motors or that for synchronous
motors (SMs)/permanent magnet motors (PMMs) can be checked by [dC-45] IM/SM(PMM) monitor.
Precautions for Correct Use
• As improper settings for a given motor result in performance below its potential characteris-
tics, be sure to set up appropriately.
• See
6-2 Parameter Setting for Motor Related
on page 6-8 for checking.
• To drive multiple induction motors (IMs) by a single inverter, it is recommendable to use it
with V/f control’s constant torque characteristics.
• An exemplar selection of control mode will be shown in the following section. Some of your
systems may have more suitable modes than what is selected as the example.
Parameter
*1. Cannot be selected if [Ub-03] duty spec selection is 01 (LD) or 00 (VLD).
*2. Cannot be selected if [Ub-03] duty spec selection is 00 (VLD).
Note IM: Induction motor
SM (PMM): Synchronous motor (permanent magnet motor)
Item
Parameter
Data
Description
Default
data
Control mode
selection,
1st-motor
[AA121]
00
V/f control-constant torque characteristics (IM)
00
01
V/f control-reducing torque characteristics (IM)
02
V/f control-free V/f (IM)
03
Automatic torque boost (IM)
04
V/f control-constant torque characteristics (IM)
with sensor
05
V/f control-reducing torque characteristics (IM)
with sensor
06
V/f control with sensor-free V/f (IM)
07
Automatic torque boost (IM) with sensor
08
Sensorless vector control (IM)
09
Zero-Hz range sensorless vector control (IM)
*1
10
Vector control (IM) with sensor
*1
11
Synchronous-start type sensorless vector con-
trol (SM/PMM)
12
IVMS-start type sensorless vector control
(SM/PMM)
*2
IM/SM monitor
[dC-45]
00
Induction motor IM being selected.
-
01
Synchronous motor SM (permanent magnet
motor PMM) being selected.
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
