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參數(shù)資料
| 型號： | GS-D500A |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 100V/5A STEP AND MICROSTEP DRIVE BOARD FOR STEPPER MOTORS |
| 中文描述： | 100V/5A STEP和微步驅(qū)動板步進(jìn)電機(jī) |
| 文件頁數(shù)： | 7/10頁 |
| 文件大?。?/td> | 99K |
| 代理商： | GS-D500A |
7/10
A1 - SUPPLY VOLTAGE
THE POWER SUPPLY MUST BE TURNED OFF WHEN
PLUGGING OR UNPLUGGING THE BOARD
The supply pins are:
J2-1 for Motor SupplyVoltage
J2-3for Auxiliary Voltage
J2-2,4 for Groundrail
The other supply voltages needed by the boards
are internallygenerated.
If an undervoltagecondition is detected(Vs < 10V)
the GS-D500Ais automatically disabled and a led
is activated.
The Motor Supplyvoltageis in the range from 12 to
100V,the Auxiliary voltage from 11 to 13V.
At power-onthe Auxiliary Supply voltage must
be applied before the Motor Supply voltage,
while at power-off the Motor Supply voltage
must be removed before the Auxiliary voltage.
A2- FULL-STEP/HALF-STEP/MICROSTEPPRO-
GRAMMINGBY HARDWARE
Thenumberof microstepsperstepisfieldprogram-
mable. The digitized sine and cosine functions,
required bya microsteppingcontrol,are stored in a
Lock-Up-Table inside the GS-D500A.
Two options are provided for the proper mi-
crosteps/steprate selection.
Threeswitches (SW1, SW2,SW3) areavailable on
the front edge of the board.
The full-step/half-step/microstep mode is defined
by the following table.
SW1
SW2
SW3
MODE
OFF
ON
OFF
Half step
ON
ON
OFF
125 microsteps/step
ON
OFF
ON
25 microsteps/step
OFF
ON
ON
5 microsteps/step
ON
ON
ON
Full step
The switches are in OFF condition when the knob
is pulled versus the board edge. Invalid combina-
tions disable the board.
A2.1 - MICROSTEP PROGRAMMING BY HOST
COMPUTER
The microsteps/step rate can also be remotely
changed by using the three logic inputs available
on the J3 connector (pins 4,12 and 15) that cor-
responds, respectively, to SW1, SW2, SW3.
The interactionbetweenlogicsignalsandhardware
switches is shown in fig. 4.
Figure 7. Remote microsteppingprogramming
To operate the logic pins of the J3 connector,the
three internalswitches must be in the OFFstate.
A3 - CURRENT REDUCTION AT REST
Phase current can be reduced when the motor is
stopped if SW6 is open.
Current reductionis operative about1 second after
the lastclock pulse.
GS-D500A
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