Hitachi WJ200-001S Instruction Manual page 441

Ver.212
14.1.6 PM drive
•This function estimates magnet position of PM by output voltage and current of inverter and setting motor
constants, and drive PM.
•Before using this function, be sure to make optimum constant settings for the motor with reference to Section
14.1.4, "Motor constant selection."
Item
Level of electric thermal
( 1)
*
Carrier frequency (
PM Speed Response
PM Starting Current
PM Starting Time
PM Stabilization Constant
PM Minimum Frequency
PM No-Load Current
PM Starting Method Select
PM Initial Magnet Position
Estimation 0V Wait Times
PM Initial Magnet Position
Estimation Detect Wait
Times
PM Initial Magnet Position
Estimation Detect Times
PM Initial Magnet Position
Estimation Voltage Gain
1 Please set electric thermal setting (b012) to the rated current of motor (same as H105).
*
2 Please set carrier frequency (b083) 8.0kHz or higher.
*
3 automatically reduces the carrier frequency according to the PM Starting Current setting.
*
4 When too great setting, motor may generate overload trip.
*
5 When too small setting, you may not be able to obtain motor torque, and motor generate impact or generate
*
over current trip near H121 setting.
6 The allophone may generate during initial magnet position estimation, but this is not abnormal behavior.
*
7 When use initial magnet position estimation, please start with the motor has stopped. When start with the
*
motor has rotated, motor may rotate greatly or generate out-of-step.
Function
code
b012
2) b083
*
H116
H117
H118
H119
H121
H122
H123
H131
H132
H133
H134
Data or range of
data
(0.2~1.0)×
Rated current of
inverter [A]
2.0~15.0 [kHz]
1~1000 [%]
Current value for starting (100[%]=H105)
20.00~100.00 [%]
( 3) (
*
0.01~60.00 [s] Time of DC current passing for starting
0~120 [%] ( 5)
*
Frequency of control switching
0.0~25.5 [%]
(100[%]=A003)
0.00~100.00 [%] Current value for no-load (100[%]=H105)
00 Normal
01 Initial Magnet Position Estimation (
Number of times of 0V waiting in initial
0~255
magnet position estimation.
Number of times until current detecting in
0~255
initial magnet position estimation.
Number of times of current detecting in
0~255
initial magnet position estimation.
Output voltage gain in initial magnet
0~200
position estimation.
Description
4)
*
6) ( 7)
* *