Thread: DAS R12 Overcurrent

the horn speaker will prob be 8 ohms.
I sugest you measure your total current consumption including detectors, keypads, external devices, internal devices, any extra relays and check that your battery is good. Make sure it all is within the specs. I see many panels overloaded to save the cost of an additional power supply.

What's your setup? No. Detectors, Keypads etc. Are there any receivers?

Do you have internal piezo also? try with external siren/strobe disconnected and then again with internal siren disconnected

There was a batch of internal sirens that caused this but haven't seen the problem for over 8 months.

Originally Posted by rotor138

There was a batch of internal sirens that caused this but haven't seen the problem for over 8 months.

Have replaced more Top Hat Piezo sirens in the last six monts yet never replaced one prior to this for over 10 years

Back to overload problem disconnect siren trigger alarm if all OK reterminate then try strobe and finally the internal sounders as you can not read current once the over current kicks. Also put a amp meter in series with one of the battery leads then turn off power as this will indicate the current drawn by panel in normal (Non alarm) condition.

I had the same problem last week with one of these kits.

As stated something is drawing too much current - you just have to work out which device.

All the outputs are rated at 250 mA so not a lot to play with.

Originally Posted by noRbackwards

Have replaced more Top Hat Piezo sirens in the last six months yet never replaced one prior to this for over 10 years

Same we had heaps that were no good, not just the ones from DAS either. It seems to have settled down here now so hopefully it will for you as well.

Hi All,

Thanks for the replies.

The setup is:

1 x Keypad
4 x PIRs (Paradox DG75's)
1 x Siren/Strobe
No Piezo
No Receivers, Expanders, etc..

I would have thought it unlikely that this would overload the system. Running the strobe only does not cause an overcurrent, but connecting the Siren does.

Any suggestions?

Dead siren tried another? Had some earlier PCB that were faulty as well but mainly in the r8's. Have you made sure there is not a short on the siren cable? May need to replace the PCB if the previous don't turn up any joy.

You need to run the current for the AUX supply through your Multi Meter, this will tell you what "standby" current you are drawing from the panel.

Then, disconect the sirens, put the system into alarm and measure it again, and also measure your SIREN (you mentioned you have a 12VDC siren rather then a horn?!) then measure your STROBE add all those readings up, im sure you will find the device that is overloading the system.

I might suggest changing the SIREN to a HORN and reverting that programming..

Let us know how you go.

Hi Keef,

The sire is a Horn speaker, not 12VDC. I will give you suggestion (and those of others) a go and let you know how I fair.


Thanks,
TB

disconnect the siren at the controller, put your multi meter on ohms and measure the resistance across the speaker, if it is not 8ohms check the cable\ replace the speaker.