Motion Sensor Light/Dark Sensitivity Setting

[bktong]

I have played around with the Set Option for the motion sensor. There is one setting in the Set Option. The light/dark sensitivity that can be set to 0-255. I have gone from 0 to 250 incremented by 50 but the motion sensor still triggers my SWL to On no matter light is coming into the room.

I have my jumper 3 on both pins and the rest on a single pin.

 

I assume 0 setting means turn on if it's bright and 255 means turn on when it's very dark???

 

bktong

[TJF1960]

What is the ms version, and does it have the adjustment pot's?

 

If it does not have the adjustment pots then it is not as adjustable as the newer version with the pots. The newer version will allow more of a lower light trip point than the older verions. Another bonus of the newer version is that if you do not want the d/d to ever trip you can set the sensitivity to 0 or 255.

 

Tim

[bktong]

I have both versions (v1 & v2) but I am trying it on v2 device with two knobs inside.

 

bktong

[TJF1960]

Sorry just re-read your original post. Not sure if you are using the ISY to make the adjustments for light to dark or if you are using the pots. If you are using the ISY you have to have jumper 5 on both pins. But since you mentioned the only jumper on both pins is jumper 3 then you must be using the pots. I never experimented with the pots, only using the ISY and I did get a good low light level using the ISY as the adjuster. If memory serves I set the d/d trip level at between 5-20 to obtain a low light condition before it turned on.

 

Tim

[bktong]

Tim,

 

I am using ISY to do the adjustment. I think I have jumper 5 on both pins.

So, if I have jumper on both pins, setting between 5-20 should do what I want...being dark before MS triggers the switch?

 

So, I have it reversed (0=light and 255=dark).

 

bktong

[TJF1960]

Hi bktong,

 

I just pulled the ms from the garage to verify. I have mine set to 5 which lets the garage get fairly dark before the d/d trips. Any number setting higher will alow the d/d trip at a higher light amount (0 = always Off, 1 = darkest before trip, 254 = Lightest before trip, 255 = always on). I seem to recall the d/d set points were backwards between v1.0 and v2.0, seems to me the higher the number the less light was required to trip. But with the v1.0 its just the opposite.

 

Also, unless you are testing the d/d trip levels as per the instructions after every adjustment you must wait for the motion sens time out, then wait another 4-5 minutes before testing the d/d because the d/d will not trip or reset until after no motion is sensed + the time out + wait time for the d/d.

 

Tim

[bktong]

Tim,

What version do you have for your garage's MS?

 

In summary, V2 - setting of near 0 means the darker the room before ms triggers. V1 is the opposite.

 

Why would they (SH) do that? Just to confuse people.

 

bktong

[TJF1960]

Tim,

What version do you have for your garage's MS? bktong

Rev 2.0

 

In summary, V2 - setting of near 0 means the darker the room before ms triggers. V1 is the opposite. bktong

 

Yes.

I just found the quote from the wiki for Rev 1.0 "Darkness Sensitivity - The higher the value, the darker it needs to be for the unit to see night. Default = 35. Range = 0 - 255" at http://www.universal-devices.com/mwiki/index.php?title=ISY-99i/ISY-26_INSTEON:Linking_a_Motion_Sensor

And I would set my Rev 1.0 motions to 255 for the darkest possible level before d/d trip.

 

Why would they (SH) do that? Just to confuse people.

bktong

 

Good question, oversite maybe when they modified the original schematics and pcb's to add the adjusment pots or they decided it made more sense to have it operate this way, or just to confuse people......

 

Tim

[bktong]

Tim,

I did see the wiki instruction when I got my ISY. So, I have been adjusting my V2 setting as if I had a V1. No wonder why it is not working as expected.

 

Thanks for your help. I will do more tests when I get home tonight.

 

bktong

[TJF1960]

bktong,

 

Yeah, it thru me for a loop too because I also was used to the 1.0, but I must say I do like the refinements they made in the 2.0 version.

 

Tim