參數(shù)資料
型號： IRMCK203
廠商： International Rectifier
英文描述： High Performance Sensorless Motion Control IC
中文描述： 高性能運動控制芯片傳感器
文件頁數(shù)： 46/57頁
文件大?。?/td> 400K
代理商： IRMCK203
IRMCK203
This document is the property of International Rectifier and may not be copied or distributed without expressed consent.
46
Byte
Offset
Bit Position
4
NumRetries
ParkIRet
7
6
5
3
2
1
0
0x7E
0x7F
StartupRetrial Write Register Map
Field
Name
RetryTm
Access
(R/W)
Field Description
This parameter provides the adjustment to the sampling instant for
determination of start failure. The sampling instant starts when
Closed_Loop = 1. Scaling 1 count = 1.966 msec. Please do not
modify this parameter without consulting a motor drive FAE.
During motor start-up, dc current is injected to the motor for
maximization of startup torque per ampere rating. ParkTm controls
the duration of dc current injection. However, users are able to use a
longer duration after two or more restarts by setting this parameter
(ParkTmRet scaling 255 = 4 secs.). This is done to increase the
chance of a successful start-up.Start-up failure may be caused by
increased shaft friction. After first start-up retry, the parking time can
be increased to improve parking performance.
The low flux threshold level for determining a successful startup
(scaling: 129 = 100% flux). Please do not modify this parameter
without consulting a motor drive FAE.The low flux threshold level for
determining a successful startup.
The upper flux threshold level for determining a successful startup
(scaling: 64 = 100% flux). Please do not modify this parameter
without consulting a motor drive FAE.The high flux threshold level for
determining start-up failure.
If start-up fails, the user can program start-up retrial. This parameter
determines the number of start-up retries. A value of zero will disable
startup retrial. The maximum number of retries is 15.
During motor start-up, dc current is injected to the motor for
maximization of startup torque per ampere rating. Users are able to
use a higher level of dc current injection (ParkIRet scaling 255 =
Motor Rated Amp * 0.866) after two or more restarts. This is done to
increase the chance of a successful start-up.Start-up failure may be
caused by increased shaft friction. After first start-up retry, the
parking current can be increased to improve parking performance.
StartupRetrial Write Register Field Definitions
W
ParkTmRet
W
FlxThrL
W
FlxThrH
W
NumRetries
ParkIRet
W
W
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