LSIS LSLV-S100 - Detecting the Initial Pole Position

196
Learning Advanced Features
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
46
Initial pole position
estimation type
Init Angle Sel
1: Angle Detect
0–2
0–2
48
Current controller P
gain
ACR P Gain
1200
0–10000
-
49
Current controller I
gain
ACR I Gain
120
0–10000
-
50
Voltage controller
limit
V Con HR
10.0%
0–1000
%
51
Voltage controller I
gain
V Con Ki
10.0%
0–20000
%
52
Torque controller
output filter
Torque Out
LPF
0
0–2000
mse
c
53
Torque limit source
Torque Lmt
Src
0
Keypad-1
0–12
54
FWD reverse
torque limit
FWD +Trq
Lmt
180.0
0.0–200.0
%
55
FWD regenerative
torque limit
FWD -Trq Lmt
180.0
0.0–200.0
%
56
REV regenerative
torque limit
REV +Trq Lmt
180.0
0.0–200.0
%
57
REV reverse torque
limit
REV -Trq Lmt
180.0
0.0–200.0
%
For high-performance operation, the parameter values of the motor connected to the inverter
output must be estimated. Configure the motor-related Basic function group parameters by
entering the motor specification values on the rating plate. Then, perform auto tuning by setting
bA. 20 (Auto Tuning) to 7 [All (PM)] to automatically measure other parameters before operating
a PM synchronous motor in sensorless vector control mode. For high-performance PM
sensorless vector control, the inverter and the motor must have the same capacity. The inverter
control may be inaccurate if the motor capacity and the inverter capacity do not match. In
sensorless vector control mode, do not connect multiple motors to the inverter output.
Detecting the Initial Pole Position
Initial pole position detection is a process to match the rotor position calculated by the
inverter and the actual rotor position in a motor. In a permanent-magnet (PM) synchronous
motor, rotor flux is generated from the permanent magnet attached to the rotor. Therefore,
to run the motor in vector control mode, the exact rotor position (flux position) must be
detected for accurate control of the torque generated by the motor.
At Cn. 46 (InitAngle Sel), select the type of initial pole position detection.