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Poate cineva sa ma lamureasca daca placa descrisa mai jos este compatibila
cu motoarele descrise?
Dupa mintea mea, trebuiau sa se potriveasca.
Controlerul are descris in manual conectarea motoarelor cu 6 fire. (2 bobine cu cate un fir pe mijloc)
Motoarele mele au 8 fire. Din schema ce le insoteste, e cam acelasi lucru, numai ca sunt 4 bobine.
Am zis ca bobinele respective se pot inseria 2 cate 2 si iese tot un motor cu 2 bobine cu fir in mijloc.
Ei bine am pus controlerul la treaba cu o tensiune de 9V pentru el si o tensiune de 5v
pentru motoare cum scria in manualul lui ulterior putand sa ii dau tensiune mai mare la motoare 24V, etc
Pentru inceput am conectat un singur motor. tot ce am putut obtine, a fost un bazait
imperturbabil al motorului neafectat in nici un fel de programasul de test dat cu
controlerul.
Motorul trebuia sa inceapa sa lucreze in urma comenzilor mele si nimic.
Mentinonez ca atat controllerul cat si motorul sunt insirate pe masa.
Nu sunt inca puse pe nici o masinarie, deci nu ar avea ce sa il blocheze.
Ambele sunt noi.
Acum inainte sa ma apuc sa ma duc pe la prieteni sa incerc si pe alte pc-uri (m-am gandit ca poate are
si portul meu paralel vre-o problema ceva si nici nu am alta imprimanta sau ceva sa il testez) poate imi zice
cineva daca sunt tampit sau nu. Daca sunt compatibile motorul cu controlerul...eventual daca e buna treaba
care am facut-o sa conectez motor cu 8 fire la controler cu 6 fire.
Multumesc mult daca cineva e in stare sa ma lamureasca.
Nu sunt sensibil. daca sunt tampit, spuneti-mi ca sunt tampit, dar sa invat si eu ceva din chestia asta
asa ca ziceti-mi si de ce sunt tampit :rolleyes:
The MC433 is a multi-microprocessor controlled 4 Axis 8A Unipolar PWM Stepper
Controller that attaches directly to a PC parallel port.
Each channel supports variable PWM control and can be individually set for Wave
step, Full step or Half step. Using four ATmega168 8bit RISC microcomputers the
MC433 provides user adjustable initial on time, duty cycle and duty cycle slew
rate using three potentiometers to match the drive characteristics of almost
all stepper motors. Direction and step commands are fed to each channel
through the PC compatible parallel port interface. The MC433 is designed
for high performance unipolar stepping applications. The MC433 is ideal
to drive a CNC Sherline, TAIG or similar Mill with room to spare for larger
CNC projects.
MC433 Hardware
The MC433 uses four AVR ATmega168 8 bit RISC microcontrollers to
individually control the PWM output to each of the four motor ports.
Using high speed Power MOSFETs each channel can sustain 8A and peak at
33A ensuring support for the most demanding stepper application.
Stepper input voltage may range from 7V to 35VDC.
Limit switch detection logic on each channel is routed to the parallel
port connector for host software control of stepper halt.
Four output control lines are available to control external relays
or related devices via transistor boosted pull down logic.
Power for board logic is jumper selectable from stepper motor
supply or a seperate wall mount DC adapter.
Technical Specifications
* 4 Axis PWM unipolar stepper control
* 8A continuous, 33A peak
* Dedicated processor on each axis
* PWM on time, duty cycle and duty cycle slew rate settable
* Wave, Full and Half step settable individually for each axis
* PC parallel port interface
* Individual limit switch detection on each axis (fed to parallel port)
* Four control outputs (routed to parallel port)
* I2C TWI Communication port for individual motor control
* Expansion ports for other functions
* 9-12VDC in (polarity protected)
* Dimensions 4.5x4.7 in
Si am luat si 3 motoare :
#23-305-DS8A 425oz-in bipolar rating,
305oz-unipolar rating, 4.2v, 3A, 200 S/R, 3.2mH,
Size # 23
Dual Shaft
8 wire MOST power consumed
best with idle current reduction,
Faster speed over 2A version below
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