question about maxon heavy duty, high torque motor with gearhead from e-gizmo

[arcturus_mengsk]

http://www.e-gizmo.com/pmaster.php?dpage=PRODUCT/ROBOT/motor.htm

ask ko lng po kung ano ang current rating ng maxon 457/458 yun po kasi ang gagamitin kong motor using 12v supply wala po kasi akong makitang datasheet niya

and kung pwede ba siya sa requirements ng l293d para sa driver niya thanks

[DigitalMind]

^ may datasheet yan sa website mismo nang maxon.
run it at 12 v then it would almost turn half as much(speed/torque.)
check for availability first sa e-gizmo.
much better na ipatest mo sa kanila to see how it performed for your application.

[arcturus_mengsk]

Thanks Boss Don Martin kung estimate lang po na current rating ng mga ganitong motors@12v? nakabili na po kasi ako eh and since may available po akong l293d ic gusto ko sana itry.

[DigitalMind]

example; kung makabili ka nang motor mo pwede mo naman i-test kung may dmm ka. malalaman mo na kung anong current nung motor mo.
then check mo sa datasheet nang l293d kung pasok sa limits nang h-bridge.

[arcturus_mengsk]

na test ko na po siya sa l293d gumana naman po siya hindi din nman umiinit kaso lang mabagal na ang ikot ng motor @12v unlike pag nakadiretso lang sa supply. bakit po kaya ganun? dapat ba ibang driver na ang gagamitin ko?? pati mga sensors po at mcu kasi sinabay ko na din ikabit to test. thanks

[bootfetch]

arcturus,

Have you checked the voltage at the motor's terminal? maybe theres a large drop kaya mahina ang takbo ng motor..

- i believe naka darlington lang yan sa loob eh baka kulang yung bias current kaya mahina..how about trying to put a buffer before the inputs to the driver para may current boost ka dun or maybe pullup resistors will do.

- paki check mo na rin yung resistance accross ng terminals ng motor mo kc i think up to 1A lang ang rating ng l293d..  12/Resistance = current Note that this current is during no load - no velocity conditions and will change during operation, pag naglalagay ka na ng load sa motor or reverse voltages and currents might be present due to the switching sa brushes (if brushed motor yan)

-d(o.O)b

[marcelino]

Hi,

anyone have the datasheet for maxon 457 and 458? pwede po pashare...
i can't seem to find it on the net...

thanks