wiring 528T timer

**McGinty** · 01-05-2006, 09:22 PM

Hey

i bought a 528T to keep my 1 atx (havnt got it yet) running for 90 seconds after IGN off, to allow laptop (on seperate PSU) time to hibernate and still access drives and accessories.

The wires are:
Orange 87A: NC
Brown 87: NO
Yellow 30: Common
B&W: Trigger
Black: Ground
Red: 12VDC ground
Blue Loop: UNCUT - trigger upon receiving negative
CUT - Trigger upon negative going away

I need it to come straight on with accessories line, but wait the 90 seconds when the accesories line disapears.

I though that
Yelow: Power from battery
Orange: Wire nothing
Brown: Wire to M1atx so it closes when triggered
BW: Accesries line to act as trigger
black and red; 12v ground

But when i do it like that, brown always get 12V regardless of ignition, so any ideas?

**XxAndyxX** · 01-06-2006, 01:36 AM

If the brown and yellow are disconnected (NO), then why are you getting 12v out of the brown wire?

It might have something to do with your trigger wire. The trigger wire might be receiving a 12V+ instead of a negative. So you can use a relay to change the signal received by the 528T to a negative.

**McGinty** · 01-06-2006, 02:48 AM

yeah sorry it was the orange that was always 12v
any ideas?

**XxAndyxX** · 01-06-2006, 11:15 AM

You said that the trigger is triggered on a negative but you are sending it a 12V+ from the accessory. I don't know if that's causing any problems.

Other than that, it looks like the way you have it hooked up currently should work. The ground (from the relay I was talking about) triggers the brown wire that is normally disconnected from the yellow to close, giving you 12V+ for as long as you set it for. After the desired amount of time the relay will go back to it's orginally state (brown wire disconnected).

**turbocad6** · 01-07-2006, 01:33 AM

Originally Posted by McGinty

The wires are:
Orange 87A: NC
Brown 87: NO
Yellow 30: Common
B&W: Trigger
Black: Ground
Red: 12VDC ground
Blue Loop: UNCUT - trigger upon receiving negative
CUT - Trigger upon negative going away

that is wrong..... it should be: red=12vdc (+)

**McGinty** · 01-07-2006, 05:11 AM

yeah i just re-read and it says

+12VDC Ground, so obviously a mistake. This should go to my battery right? and the accesories line to the trigger to switch on/off

Cheers

**XxAndyxX** · 01-07-2006, 01:26 PM

Yeah, you got it... the red needs to be connected to a 12V+ from your battery.

**McGinty** · 01-10-2006, 07:26 PM

ok i have done that and it is functional, but not really how i want it to run

Now, the orange wire has 12v when car is off
the orange wire has 12v when car is on
brown wire has 12v for 90 secs when car is off

BUT i need the brown wire to have 12v when is ON and for the 90 seconds after it switches off, then have 12v to orange the rest of the time cos its not hooked up to anything.

Alternate ways of achieving this i thought:
Have a relay, and join the ACC and BROWN together at the relay. That way, ACC will keep it connected when car is on, BROWN will keep it connected for 90seconds after, and it wont be connected for the rest of the time. This seems plausible, but i am concerned that then it will **** with my other ACC relay which tells the laptop to hibernate when car turns off. I am thinking that with the brown giving 12v, the laptop wont hibernate till after 90sec, defeating the purpose.

Any Ideas? I am doing the install today, so these delays are gay

**turbocad6** · 01-10-2006, 07:32 PM

use a relay, have it activated with ign, & also activated with the timer.... BUT you will need to also use a diode so the timer doen't back feed the ign.... the diode should go in the ign feed....