Homebuilt ROVs Forum

hello,I'm using relay 48VDC for coil and 60A for contact ,the problem is that it keep burning every try and i don't know why?

*my motors need 5A to run perfectly.

Have you doublechecked the supply voltage?

sideshow wrote:Have you doublechecked the supply voltage?

what's mean of doublechecked ?

Hossam, please tell details of the relay you are using. If you supply a circuit diagram of connection to motor and power supply this would help others answer your question. Show voltage of power supply

i can't use a a cad program but i did my best to show our circuit.


motor go on direction if i operate the first relay and another direction if i operate the second relay

Thank you. Wiring is correct. Is the motor burning? What is the motor voltage specification? What sort of motor? Please give part number or description.

rossrov wrote:Thank you. Wiring is correct. Is the motor burning? What is the motor voltage specification?

the motor isn't burning and it's temperature is normal,the relay is my problem

OK, so what are the relay specifications? AC or DC coil, coil voltage. What voltage are you applying to the coil. Or is it the contacts that are burning?

How is the coil of the relay connected?
Have you tested the relay before you put it in the circuit to know wether or not it's your circuit?
How many volts do you measure at the coil?

sideshow wrote:How is the coil of the relay connected?
Have you tested the relay before you put it in the circuit to know wether or not it's your circuit?
How many volts do you measure at the coil?

the coil 1st pin is connected to GND and the other pin is connected to a button to 48 VDC.

i don't understand the second question

the coil is 48 VDC