- 您現在的位置：買賣IC網 > PDF目錄370377 > GS-C200 (意法半導體) INTELLIGENT STEPPER MOTOR CONTROLLERS PDF資料下載
參數資料
| 型號： | GS-C200 |
| 廠商： | 意法半導體 |
| 英文描述： | INTELLIGENT STEPPER MOTOR CONTROLLERS |
| 中文描述： | 智能步進電機控制器 |
| 文件頁數： | 27/31頁 |
| 文件大?。?/td> | 314K |
| 代理商： | GS-C200 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁當前第27頁第28頁第29頁第30頁第31頁
27/31
Figure 15.Torque/Frequency Characteristic.
The Slew speed isalso limited by the motor electri-
cal and physical characteristics, as shown on Fig.
15 where the behaviour of the minimum available
torque versus the driving frequency is reported.
It can be noted that the torque decreases almost
linearly starting from a certain frequency, and this
frequency depends on the motor windings imped-
ance and the rotor inertia.
Figure16. The GS-C200 Acceleration Ramp.
RAMP LENGHT (R command) SELECTION
The acceleration and deceleration ramps are not
likely to be calculated and they shall be optimized
during the system debugging and testing phase.
The testing may start with very conservative ramp
gradients, i.e. verylong ramps,that willbegradually
shortened until the firstpositioning error isdetected.
The acceleration and deceleration ramps gener-
ated by the GS-C have the trend shown in fig. 16.
It is important to note that, when the number of
steps to be executed does not allow to reach the
Slew speed, the GS-C moves to the target position
performing a partial acceleration ramp linked to a
shortened deceleration ramp. This represents the
minimum time consuming way to reach the speci-
fied position.
CLOSED LOOP OPERATION
The stepper motor is a device normally driven inan
open loop mode and there is no direct control
between the cause and the effect. In adverse con-
ditions an issued step may not be performed me-
chanically because the driving conditions do not
match the required torque and speed. In addition,
the resonance phenomenon, common to all the
stepper motors,can also affect the correct position-
ing.
In some particular applications, when the load has
a very large spread of values andthe torque margin
is limited, it is sometimes necessary to implement
an external electronic circuitry to guarantee the
correct system positioning
To this purpose three different methods can be
adopted:
a) Digital encoding of the absolute position.
b) Recognition that a step has been executed by
the usage of a slotted disk, two optocouplers
and some logic.
c) Thesameas aboveby the usageofvelocity coils
and some logic.
The first solution is very expensive and the digital-
ized position value must be read by the computer
through aparallel port by using aspecifically written
program. A further limitation arises from the fact
that every shaftencoder provides just the informa-
tion relative to the position but itdoes not take care
if more than one turn has been performed by the
motor shaft, and an external logic is also required
to detect and save this condition.
The secondsolutionislessexpensive butitrequires
a tedious trimming of the mechanical positioning of
the optical sources and detectors to be effective.
The major drawback ofthis solution is its sensitivity
to dust, and the whole position sensing system
must be contained in a dust free box.
The last solution is probably the best under every
point of view because it does not require any me-
chanical positioning adjustement that has been
previously madeby the motor manufacturer; more-
over it is dust insensitive beeing based on flux
variation across an air gap and finally no mechani-
cal hardware must be added to the system.
GS-C200/ GS-C200S
相關PDF資料 |
PDF描述 |
|---|---|
| GS-D200M | Industrial Control IC |
| GS-D200 | 2/2.5A Bipolar Stepper Motor Driver Modules(2/2.5A雙極型步進電機驅動器模塊) |
| GS-D200S | 2/2.5A Bipolar Stepper Motor Driver Modules(2/2.5A雙極型步進電機驅動器模塊) |
| GS-D500A | 100V/5A STEP AND MICROSTEP DRIVE BOARD FOR STEPPER MOTORS |
| GS-DC200 | STEPPER MOTOR CONTROL AND DRIVE SYSTEM FAMILY |
相關代理商/技術參數 |
參數描述 |
|---|---|
| GS-C200S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:INTELLIGENT STEPPER MOTOR CONTROLLERS |
| GSC20-12 | 功能描述:線性和開關式電源 20W 12V @ 1.7A RoHS:否 制造商:TDK-Lambda 產品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
| GSC20-12G | 功能描述:線性和開關式電源 20W 12V @ 1.7A RoHS:否 制造商:TDK-Lambda 產品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
| GSC20-15 | 功能描述:線性和開關式電源 20W 15V @ 1.4A RoHS:否 制造商:TDK-Lambda 產品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
| GSC20-15G | 功能描述:線性和開關式電源 20W 15V @ 1.4A RoHS:否 制造商:TDK-Lambda 產品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
發(fā)布緊急采購，3分鐘左右您將得到回復。