Massoth revers loop Module

FrenchChuffed

FrenchChuffed

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Is there any way of checking a revers loop modual to see whats not working on it i have one on my track its been in a waterproof box in the garden but now its not working any pointers as to possably checking it would be apreciated.
 
How is it set to detect?
Check the wiring from the track.
Check gaps in rails have not closed-up.

All you can really do, is check the connectors on the module have not corroded, then simulate operation. Either In-situ, or on the bench.

PhilP
 
PhilP said:
How is it set to detect?
Check the wiring from the track.
Check gaps in rails have not closed-up.

All you can really do, is check the connectors on the module have not corroded, then simulate operation. Either In-situ, or on the bench.

PhilP
Click to expand...
I think it was set to detect the loco shorting out, i have checked the contacts the all seem to be clean and i have tightened them up. when i run a loco onto the section it just stops. The wiring is the same as it was when it worked unless a rat has chewed anything.
 
If your whole layout shuts down, then it isn't switching, and your CS is detecting a short..
If it stops, but the rest of the layout is still powered, then the module isn't switching, or does not have track power to switch..

Highly technical, but it might be a sticky relay?
Whack the unit a couple of times, with a screwdriver handle.

PhilP
 
PhilP said:
If your whole layout shuts down, then it isn't switching, and your CS is detecting a short..
If it stops, but the rest of the layout is still powered, then the module isn't switching, or does not have track power to switch..

Highly technical, but it might be a sticky relay?
Whack the unit a couple of times, with a screwdriver handle.

PhilP
Click to expand...
Hi thanks for the reply.
No the rest of the layout still works the loco just passes over the isolator section and just stops i will check for tack power to the unit tomorow and give the unit a smart wack ( can you get the modula apart if it is a sticking relay? )
 
The unit should come apart, but if the contacts are welded one-way, you would need to replace the relay.

PhilP
 
Hi,
I had the same issue with my reversing loop about 12 months age.
Spent much time in a series of Q&A with Paul at PS hobbies, for things to try.
Long and short of it spent much time trying to diagnose the problem
In the end bought and fitted a new unit and everything work fine
Appreciate not much help but might save you time, but not money
Nigel
 
Last year the local fox pack chewed through my wires, so check them first.

Then check to see if you have volts going in and out on the module (measure on Vac).

Then listen for the relay clicking when a train or loco is in the reversal section....
 
NG Retired said:
Hi,
I had the same issue with my reversing loop about 12 months age.
Spent much time in a series of Q&A with Paul at PS hobbies, for things to try.
Long and short of it spent much time trying to diagnose the problem
In the end bought and fitted a new unit and everything work fine
Appreciate not much help but might save you time, but not money
Nigel
Click to expand...
Yes thanks i have a spare module so i will swap it over tomorow i was just hoping to see if it was a basic fault or an external corosian problem, I sorted a few fiddely conections onto the track today but no success so a swap out is pending.
 
Well... i put in my back up module but no success so i reverted to other jobs on the line today. I will order a new one as my backup could be faulty as i got it in a job lot of massoth stuff i purchesed a few years ago. so just wondering now where to get a new module from?
 
FrenchChuffed said:
Well... i put in my back up module but no success so i reverted to other jobs on the line today. I will order a new one as my backup could be faulty as i got it in a job lot of massoth stuff i purchesed a few years ago. so just wondering now where to get a new module from?
Click to expand...
Kent Garden Railways, Garden Railway Specialists, PandS hobbies amongst some of the likely suspects.
 
FrenchChuffed said:
Well... i put in my back up module but no success so i reverted to other jobs on the line today. I will order a new one as my backup could be faulty as i got it in a job lot of massoth stuff i purchesed a few years ago. so just wondering now where to get a new module from?
Click to expand...
Well I suppose both modules could be faulty?

But two giving the same result, I would be giving the wiring a hard stare, and checking for voltage and continuity.

PhilP
 
PhilP said:
Well I suppose both modules could be faulty?

But two giving the same result, I would be giving the wiring a hard stare, and checking for voltage and continuity.

PhilP
Click to expand...
Good call, when I installed one for Humplet I colour coded and documented all wire runs using 2-3 mm lengths of insulation in suitable different coded lumps. Shoved over a smaller wire you can use red,black green to get quite enough variations.
 
dunnyrail said:
Good call, when I installed one for Humplet I colour coded and documented all wire runs using 2-3 mm lengths of insulation in suitable different coded lumps. Shoved over a smaller wire you can use red,black green to get quite enough variations.
Click to expand...
Well I got a NEW modual and it had the same fault lol so i rang out all the wireing and had a faulty track connection i think so all fixed now just a few pounds out of pocket .
But thanks for your help as always guy as i get older i get more stupid by the day i used to love all the electronics and wiring now i forget where the switch is to switch it all on.
 
FrenchChuffed said:
Well I got a NEW modual and it had the same fault lol so i rang out all the wireing and had a faulty track connection i think so all fixed now just a few pounds out of pocket .
But thanks for your help as always guy as i get older i get more stupid by the day i used to love all the electronics and wiring now i forget where the switch is to switch it all on.
Click to expand...
A tester is what you need, just a model light bulb to some wire works quite well. Though I have used a 12v DC one they do last quite well if you only do short tests. However for a more permanent solution one fitted with diodes to create a rectifier for acceptance of AC without trashing the bulb will last much longer. This is my test bogie as you can see I have not used a rectifier but have fitted a speaker and a switch to swop between the two, the speaker is very useful in long distance testing when wiggling wires to find dodgy connections. The tester with speaker obviously being placed where there is no power whilst investigations are under way.
IMG_8060.jpeg
 
are those 100ohm resistors? what are they doing in the scheem ot things? never though od a mobile tester like that good idea.
 
FrenchChuffed said:
are those 100ohm resistors? what are they doing in the scheem ot things? never though od a mobile tester like that good idea.
Click to expand...
Hm not sure, tried to ead them on a resistance converter and they appear to be a non existent type! What they do is to reduce voltage to speaker so as not to trash it. So far they have worked. I expect an electronic expert will tell the full story.
 
Yes, they appear to be 100 ohm resistors...
They protect the loudspeaker from only working once!

PhilP
 
PhilP said:
Yes, they appear to be 100 ohm resistors...
They protect the loudspeaker from only working once!

PhilP
Click to expand...
Yes brown Black brown is 2000 ohm just thinking about it brown is 2 and black is 1 or the number of zeroes if on the third row of colour stripes.
 
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