LSIS LSLV-S100 - Sensorless Vector Control Mode Settings for PM Synchronous; Motors

Learning Advanced Features
157
pole.
When Cn. 46 is set to 1 (Angle Detect), the motor is operated according to the pole position
detected by changes in the current. The voltage pulse input is used to detect the pole position
and results in a small amount of noise at motor startup.
When Cn. 46 is set to 2 (Alignment), the inverter forcefully align the rotor position by supplying DC
current for a certain period of time.
Group
Code
Name
LCD display
Setting
Setting range
Unit
Cn
35
Pole position detection
retry count
PD Repeat
Num
1 0–10 -
36
Pole position detection
interval
Pulse Interval 20 1–100 Ms
37
Pole position detection
pulse current (%)
Pulse Curr % 15 10–100 %
38
Pole position detection
pulse voltage (%)
Pulse Volt % 500 100–4000 -
46
Pole position detection
type
Init Angle Sel
0
None
0–2 - 1
Angle
Detect
2
Alignment
5.11.2 Sensorless Vector Control Mode Settings for PM Synchronous
Motors
To operate a PM synchronous motor in sensorless vector control mode, set dr.09 (Control Mode) to
6 (PM Sensorless), select the motor capacity at dr.14 (Motor Capacity), and enter the appropriate
codes in the Basic (bA) group with the motor specification values found on the motor’s rating
plate. If a specific motor capacity does not exist in the setting options, select a higher motor
capacity that is closest to the actual motor capacity.
Code
Input Values (Motor’s Rating Plate Information)
dr.18 Base Freq
Base frequency
dr.20 Max Freq
Maximum frequency
bA.11 Pole Number
Motor pole number
bA.13 Rated Curr
Rated current
bA.15 Rated Volt
Rate voltage
bA.16 Efficiency
Efficiency
bA.19 AC Input Volt
Input power voltage