REL1101

Technical Discussions on any InterfaceKits
lloydb
Fresh meat
Posts: 3
Joined: Tue Jan 15, 2019 4:42 pm
Contact:

REL1101

Postby lloydb » Tue Jan 15, 2019 5:16 pm

Is there a way to stop the REL1101 relay module from turning off the relays when my application shuts down.

Also is there any way to default the relays to on when the system powers up?

jdecoux
Labview Developer
Posts: 86
Joined: Mon Nov 13, 2017 10:20 am
Contact:

Re: REL1101

Postby jdecoux » Wed Jan 16, 2019 10:47 am

No, we have intentionally designed Phidget22 to reset all devices to an OFF state when they are closed, and when they are re-opened.

You can read this form post that explains our reasoning.

lloydb
Fresh meat
Posts: 3
Joined: Tue Jan 15, 2019 4:42 pm
Contact:

Re: REL1101

Postby lloydb » Thu Jan 17, 2019 3:40 pm

Well that's the end of using the REL1101 for this project then.

Thanks for the response.

User avatar
Patrick
Lead Developer
Posts: 3078
Joined: Mon Jun 20, 2005 8:46 am
Location: Canada
Contact:

Re: REL1101

Postby Patrick » Thu Jan 17, 2019 4:27 pm

If your system needs the default state to be closed (on), you'll probably have to use a board with mechanical relays, and use the Normally Closed terminal blocks. This way your state in 'On' even if the Phidget is not powered or plugged in. If you need to use SSRs for some reason (longevity, PWM, etc.), you probably need to rethink your system.

-Patrick

lloydb
Fresh meat
Posts: 3
Joined: Tue Jan 15, 2019 4:42 pm
Contact:

Re: REL1101

Postby lloydb » Sun Jan 20, 2019 11:20 pm

At present the system is using two KTA323's for controlling power to subsystems.
As the project is a sustainable solar powered unmanned surface vessel we cannot afford the power used by coil relays.
The solid state relays would be ideal if they could maintain their on/off state while the process controlling them needed a restart or had a forced restart.

Thanks
Lloyd


Return to “InterfaceKits”

Who is online

Users browsing this forum: No registered users and 1 guest