Need help with a remote monitor panel

5

56eebo

New Member

• Dec 8, 2009

• #1

Hello Everybody,,,,
I want to make a remote monitor for a UPS, the UPS has a programmable relays contacts socket. the relays are 220VAC/1A.
I just need a LEDs & Buzzers to turn ON in a specific conditions, Does anybody have a circuit that might help me???

I work in a hospital and I need this monitor very much ... please help...

 

5

56eebo

New Member

• Dec 8, 2009

• #2

I'm waiting for your help ,,,

 

K

KMoffett

Well-Known Member

• Dec 8, 2009

• #3

No answers in 30 minutes? Wow! Patients....or should I say patents.

How about more info. Wiring of the programmable relays contacts socket? What you want to happen when?

The devil's in the details.

Ken

 

5

56eebo

New Member

• Dec 8, 2009

• #4

Sorry man,,,
There is a programmable relays on the UPS with free contacts, for example when the UPS turn to "Battery Mode" relay no.1 will be energized and closes/open its contact. I need a remote light that indicates that the UPS in battery mode. But I don't know how to build this circuit. I want a simple circuit that I can manage it with my little knowledge ...

 

Last edited: Dec 8, 2009

K

KMoffett

Well-Known Member

• Dec 8, 2009

• #5

Like this.....

ken

Forgot the circuit.

 

Attachments

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Last edited: Dec 8, 2009

5

56eebo

New Member

• Dec 8, 2009

• #6

thanks man,
But please tell me why you put the resistance with the led (just to learn)
and please if I want another relays , how I connect them with other lights using one source??

 

Last edited: Dec 8, 2009

K

KMoffett

Well-Known Member

• Dec 8, 2009

• #7

LEDs are "current controlled" devices. The voltage drop across them is constant...~1.7V for red ones. So, a resistor in required to limit the current to a safe value...~0.01 Amp... and drop the difference between the supply voltage, 12V, and 1.7V. (12V-1.7V)/0.01A=1030 ohms. You will see some panel mounted LED's labeled "12VDC", but they already have a resistor in the case.

ken