All Questions
51
questions
0
votes
1
answer
32
views
Using a Relay to control an irrigation valve solenoid
I'm using a JQC-FC3VDC relay. I control it from a microscontroller using a 3.3V signal through an opto-link. And the business end of the relay controls a 24VAC output which then activates the ...
- 131
0
votes
3
answers
148
views
Issue with solenoid valve sparks despite using two 1N4001 flyback diodes [closed]
As a student, I'm currently working on a science project where I intend to connect a 12V, 2A solenoid valve to a relay and subsequently to a Raspberry Pi Pico. The solenoid valve is powered by a 12V, ...
0
votes
0
answers
74
views
What kind of relay / switch is this?
What kind of relay, if I'm right, is this? It is used in a PRCD.
Pictures from 3 sides.
- 1
1
vote
0
answers
102
views
Proper circuit for a solenoid being triggered by a relay with occasional misfires
12V relay question…
I built a homemade pinball controller for my PC using a standard, 5 V USB encoder for the controls. I wanted to add some haptic feedback, so I decided to add a few 12 V solenoids ...
- 11
2
votes
0
answers
66
views
Toshiba T2204A Air recirculation solenoid controller
please help me sorting out the pinout of the Toshiba T2204A. I spent more than a week of googling for datasheet, however the closest I could found is a similar package 2SK150A. I'm unsure this could ...
- 21
0
votes
1
answer
250
views
How do I cause a normally open solenoid to close when power is removed?
Background: I have an undersink 3-canister filter in my kitchen and wanted to monitor the amount of water going through the filter. I purchased a Digiten DFC15 water flow controller and a Digiten ...
0
votes
1
answer
186
views
Controlling a solenoid valve with a relay and a 18650 battery
I have a 12 V 18 W (1.5 A) solenoid valve that I want to control valve with an RF relay.
I use a Sony 18650 li-on battery to power this system. A 1S 10 A BMS unit is protecting the battery.
Even ...
- 1
0
votes
1
answer
282
views
I need a 3.3V relay that connects a Teensy 4.1 to 10 24V solenoid valves
I am in a school project. I need a relay that can connect a Teensy 4.1 to a 24 VDC solenoid.
We have around 10 solenoid valves and 4 transducers but the only thing to be considered right now are the ...
-1
votes
1
answer
83
views
How to supply 12V 4 pcs of solenoid water valve
enter link description hereI am trying to control 4pcs of 12V solenoid water valve using Nodemcu and 5V 8-channel relay. The VIN pin and Ground pin of Nodemcu is connected to VCC and Ground pin of the ...
-1
votes
3
answers
1k
views
How to operate a relay (24 VDC 8 mA) from a 4-20mA signal?
I have a PLC that can output a 24 VDC, 4-20 mA signal, but it cannot be turned off - the lowest it can go is 4 mA. I found a relay (J104D2C24VDC.20S, 24VDC, 0.20W) that per the datasheet operates at ...
- 21
1
vote
0
answers
35
views
Upstream pressure on solenoid valve
Does a solenoid valve consume more current when the pressure in the connected pipes is more than normal?
- 33
1
vote
2
answers
365
views
Arduino and solenoid with a single power supply
I am trying to create a small project involving controlling a solenoid via an Arduino Uno clone with a single power source.
I currently have it set up to power the Arduino with a power adapter rated ...
- 111
2
votes
2
answers
612
views
Controlling relays with logic gates
Pretty new to electrical engineering world, so probably rather simple question. I´m designing control system for tractor trailer hydraulic system. The system is 12 V and solenoids what I am using ...
- 23
2
votes
2
answers
579
views
Isolating the solenoid and driving relay power supply
I am using a relay module to drive a solenoid based on the output from my micro-controller which provides 5v signal. Following is what the circuit looks like:
My objective is to hook up both relay ...
- 25
0
votes
2
answers
311
views
What are the benefits of a solenoid over a relay in an electric cart?
I was looking over the wiring diagram of a Electric Golf Cart and noticed the use of a solenoid. The initial literature I found suggest that the solenoid is only engaged when the key is in the engaged ...
- 139