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help plz, no power to motors
Posted: Dec 10th, 2021, 6:40 am
by steel
Hi
I have made the "basic rov control system" with joystick and the relays are clicking when i move the joystick but there isn’t any power to thrusters. What are I’m doing wrong? Any help is appreciated.
Regards steel
Re: help plz, no power to motors
Posted: Dec 10th, 2021, 3:00 pm
by steel
Did I buy wrong relay? Should be 2 NO and 2 NC
If i wire the motor to pin 1 and 2 or 5 and 6 with no joystick movement nothing happens. But when using joystick the motor is running.
Re: help plz, no power to motors
Posted: Dec 10th, 2021, 5:38 pm
by steel
Is this the right way to read the reley
1 and 2 NC
3 and 4 NO
5 and 6 COM
7 and 8 Coil
?
Re: help plz, no power to motors
Posted: Dec 10th, 2021, 9:40 pm
by Ian MacKenzie
I think you're reading the relay right.
Here's a link for the Seafox wiring. The COM, NC and NO are different on these relays, but you should be able adapt it to your relay.
http://www.homebuiltrovs.com/howtorelaywiringdpdt.html
Re: help plz, no power to motors
Posted: Dec 12th, 2021, 10:15 am
by sthone

- Relay-Wiring.jpg (39.67 KiB) Viewed 32576 times
This is how yours should be wired. (forgive the crude drawing)
(edit - Just to be clear you need two relays per motor to control forward and reverse.)
-Steve :rov:
Re: help plz, no power to motors
Posted: Dec 20th, 2021, 12:09 pm
by steel
Thx for the help, the releys works perfectly
Re: help plz, no power to motors
Posted: Dec 20th, 2021, 12:11 pm
by steel
sthone wrote:Relay-Wiring.jpg
This is how yours should be wired. (forgive the crude drawing)
(edit - Just to be clear you need two relays per motor to control forward and reverse.)
-Steve :rov:
thx for the drawing, i helped a lot