Hitachi WJ200-001L, Инструкция по эксплуатации, Страница: 441 / 680

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
Function
code
Data or range of
data
Description
Level of electric thermal
(
*
1)
b012
(0.2~1.0)
×
Rated current of
inverter [A]
Carrier frequency (
*
2) b083 2.0~15.0 [kHz]
PM Speed Response H116 1~1000 [%]
PM Starting Current H117 20.00~100.00 [%]
Current value for starting (100[%]=H105)
(
*
3) (
*
4)
PM Starting Time H118 0.01~60.00 [s] Time of DC current passing for starting
PM Stabilization Constant H119 0~120 [%] (
*
5)
PM Minimum Frequency H121 0.0~25.5 [%]
Frequency of control switching
(100[%]=A003)
PM No-Load Current H122 0.00~100.00 [%] Current value for no-load (100[%]=H105)
PM Starting Method Select H123
00 Normal
01 Initial Magnet Position Estimation (
*
6) (
*
7)
PM Initial Magnet Position
Estimation 0V Wait Times
H131 0~255
Number of times of 0V waiting in initial
magnet position estimation.
PM Initial Magnet Position
Estimation Detect Wait
Times
H132 0~255
Number of times until current detecting in
initial magnet position estimation.
PM Initial Magnet Position
Estimation Detect Times
H133 0~255
Number of times of current detecting in
initial magnet position estimation.
PM Initial Magnet Position
Estimation Voltage Gain
H134 0~200
Output voltage gain in initial magnet
position estimation.
*
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.