What happens when you touch 86 and 85 on a relay?
When you touch 86 and 85 to the battery, the electromagnet pulls the switch contacts together, so the resistance between 30 and 87 should read essentially zero (under one ohm). If it doesn’t, the relay isn’t working.
Is the din on the underside of the relay?
When troubleshooting relay-related wiring, you need to be very clear about the DIN numbering and not confuse the numbering on the underside of the relay with the numbering on the socket the relay plugs into. They are the mirror-image of each other.
When do you need to troubleshoot a relay?
That is, on a horn, 12V should always be present on 86, and 85 is grounded when the horn button is pressed). If the control side fails either of these tests, you must troubleshoot the wiring. Often it is a problem in whatever is switching the control side on and off.
What kind of power socket does Triumph Tiger 800 use?
I use one of these adaptors in the socket on my Tiger 800. Had no problem charging my Samsung Galaxy when I used it as a satnav. I don’t use my power socket although it should work.
When you touch 86 and 85 to the battery, the electromagnet pulls the switch contacts together, so the resistance between 30 and 87 should read essentially zero (under one ohm). If it doesn’t, the relay isn’t working.
When troubleshooting relay-related wiring, you need to be very clear about the DIN numbering and not confuse the numbering on the underside of the relay with the numbering on the socket the relay plugs into. They are the mirror-image of each other.
That is, on a horn, 12V should always be present on 86, and 85 is grounded when the horn button is pressed). If the control side fails either of these tests, you must troubleshoot the wiring. Often it is a problem in whatever is switching the control side on and off.
Can you feel the contacts closing on a relay?
You also can feel the contacts closing if you lay your hands on the relay. So, for example, if your horn doesn’t work, the first thing to do is turn it on (e.g., hit the horn button), and listen to and feel the relay.
Do you need to connect Terminal 87A to relay?
Terminal 87a is not widely used and does not need to be connected for the relay to operate. 87a can be used for many different things such as relay activation monitoring or connecting a separate circuit that uses power when the relay is not in use. Step 10 – Each terminal is identified at the relay base.
What happens when you power terminal 86 and ground terminal 85?
When you power terminal 86 and ground terminal 85, it energizes the electromagnet, which pulls the internal switch contacts closed, which connects 30 (power) to 87 (the device), which sends power to the device. With that understood, you can easily troubleshoot any circuit that uses a relay.
What kind of relay do I need for my 4×4?
The switch that is installed in the cab of your 4×4 actually only powers the relay itself which draws very little current. In most installations a 30 AMP relay from Radio Shack (Auto Relay Cat. Number 275-226) will do unless your amperage demands exceed 30 amps. I like to used a lighted switch in the cab to let me know if driving lights are on.
What does it mean if a relay is always hot?
As long as the relay doesn’t have a diode in it, that’s fine. It’s just a switch. Current can flow in and out either side of the switch. If the only thing you find wrong is that 87 is always hot and 30 goes to the device instead of the other way around, don’t worry about it.
Where does the power come from in a relay?
1 Terminal 86 supplies power to the relay’s internal electromagnet. 2 Terminal 85 grounds the electromagnet. 3 Terminal 30 supplies power to one of the internal switch contacts. 4 Terminal 87 connects the other internal switch contact to the device controlled by the relay.
What are some examples of problems with relays?
For example, on a horn, the problem is often in the spring-loaded plunger behind the steering wheel that touches the ring contact that grounds terminal 85. On the high current (load side), test that 12V is present on socket terminal 30, and that there is continuity between 87 and the device.