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 Robotics / Handy Board / 4348
4347  |  4349
Subject: 
Re: Steppr motor pulse problem
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Thu, 27 Aug 1998 14:42:28 GMT
Original-From: 
Bernd Klein <bernd.klein@pdv-online.deNOSPAM>
Viewed: 
1199 times
  
Hi Philip,

are you shure, you have the right pins from the stepper to the outgoing pins
from your chip. Have your stepper 4,5 or 6 cables?
If you exchange the cables, your stepper motor only do some vibrations or doing
nothing.

The easiest way to test the sequence is the following (Stepper Motor with 5 or 6
Cables)
Most steppers with 6 Cables are using 2 for their voltage.

For example
Outgoing Pins form Chip

Step 1)
1 ---------- Stepper in 1
2 ---------- Stepper in 2
3 ---------- Stepper in 3
4 ---------- Stepper in 4

it doesn´t work then go to STEP 2

Step 2)
change Stepper in 1 with Stepper in 4    it doesn´t work go to STEP 3

Step 3)
change Stepper in 2 with Stepper in 3    it doesn´t work go to STEP 4

Step 4)
change Stepper in 3 with Stepper in 4    it doesn´t work you have a big problem
:-)


I have test some steppermotors with an special mini-electronic (NE555 and
Stepper Chip SAA????)
With this equipment i test my Motorpins. It´s very easy and i have the correct
cable sequence.

cu and good luck

Bernd Klein

phillip chia schrieb:

Hi,
I've encounter some problem on using the stepper motor with my self-built
driver.  I am not using the driver in the HB. I have to build out a driver..
The driver chip I use is L298 and logic gate chip is L297 or 374( this chip
also use in HB) . When I connect the motor to it, there is vibration inside
the motor. However, the shaft of the motor is not turning at all. I suspect
that the step sequence is not correct. As a result. I found out that all
the step sequence are the same  for every clock pulse . According to the
theory, there should be a 4 step sequece with each sequence is being delay..

How should rectify this problem in order to cause the shaft of the motor to
rotate ?
Is it my input is incorrect ?

rgds,
phillip



Message is in Reply To:
  Steppr motor pulse problem
 
Hi, I've encounter some problem on using the stepper motor with my self-built driver. I am not using the driver in the HB. I have to build out a driver. The driver chip I use is L298 and logic gate chip is L297 or 374( this chip also use in HB) . (...) (26 years ago, 26-Aug-98, to lugnet.robotics.handyboard)

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