Welcome, Guest

TOPIC: I/O ports problems

I/O ports problems 5 years 11 months ago #764

  • argelia
  • argelia's Avatar
  • OFFLINE
  • Fresh Boarder
  • Posts: 11
  • Karma: 1
I am using a sm2315dt'I/o ports as an outputs to energizade some selenoids, their initial states have to be 0 because at the begining of the program i turn off all the ports, but here is the problem, everytime I turn on the motor their states are 1 for few seconds activating the selenoids, is it posible to avoid that?


pd: I/O ports activate some transistors which turn on the selenoids.
The administrator has disabled public write access.

Re: I/O ports problems 5 years 11 months ago #767

  • csearcy
  • csearcy's Avatar
  • OFFLINE
  • Moderator
  • Posts: 459
  • Thank you received: 77
  • Karma: 23
This is hard to avoid. One approach is to use a time delay relay or another output to enable power to the solenoid circuits.
The administrator has disabled public write access.

Re: I/O ports problems 5 years 11 months ago #770

  • argelia
  • argelia's Avatar
  • OFFLINE
  • Fresh Boarder
  • Posts: 11
  • Karma: 1
we already fix the problem, we have to use some voltage divisors along with some diodes at their respective transistor's base
The administrator has disabled public write access.
Time to create page: 0.245 seconds
Powered by Kunena Forum