BENSHAW RSi H2 Series - Sensorless Vector Control Operation Setting

Sensorless Vector Control
241
890053-00-02
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
92
Sensorless voltage
compensation 2
SL Volt Comp
2
20 (230V, 460V)
110 (575V)
0-60
-
93
Sensorless voltage
compensation 3
SL Volt Comp
3
20 (230V,460V)
0-60
-
94
Sensorless field
weakening start
frequency
SL FW Freq
100
0.0-110.0
%
95
Sensorless gain
switching frequency
SL Fc Freq
2
0.00-8.00
Hz
97
Sensorless Slip
Compensation1
SL Slip Comp
1
100 (575V only)
0-200
-
98
Sensorless Slip
Compensation2
SL Slip Comp
2
50 (575V only)
0-200
-
7.1.1 Sensorless Vector Control Operation Setting
To run sensorless vector control operation, set DRV-09 (Control Mode) to 3 (IM sensorless), select the
capacity of the motor at MOT-01 (Motor Capacity), and enter the nameplate information of the motor
in the below parameters.
Code
Input (Motor Name Plate Information)
MOT-02 Base Freq
Base frequency
MOT-03 Pole Number
Motor pole number
MOT-04 Rated Slip
Rated slip
MOT-05 Rated Curr
Rated current
MOT-07 Motor Volt
Motor rated voltage
MOT-08 Efficiency
Efficiency (when no information is on the name plate, default values are used.)
After setting the above, set MOT-11 (Auto tuning) to 1 (All - rotation type) or 2 (All - static type) and
run auto tuning. Rotation type auto tuning is more accurate than Static type. Set 1 (All -Rotation type)
if the motor can be rotated.
Note
Excitation Current
A motor can be operated only after magnetic flux is generated by current flowing through the
stator. When the motor is connected to the output of the inverter, excitation current flowing in
the stator creates the magnetic flux required to operate the motor.
Sensorless Vector Control Operation Setting Details
Code
Description
CON-09
PreExTime
Sets the excitation current application time. Pre-excitation is used at
the start of the operation to perform excitation up to the motor’s rated
flux.
CON-11
Hold Time
Sets the zero-speed control time (hold time) after deceleration in the
stopped position. The inverter applies an output (at zero speed) to hold
the motor for the Hold Time, CON-11. The output is blocked after the
Hold Time.