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Offline Hackcell  
#1 Posted : 04 April 2016 21:31:20(UTC)
Hackcell

Costa Rica   
Joined: 21/11/2013(UTC)
Posts: 521
Hello,

Checking a turntable, I found there is a coil right next to the motor, also connected to a pin which releases the turntable to spin freely.
My question is, allowing the turntable to spin and hold it when not are this coil's only functions or does it has any other function, like "counting" spaces to know exactly where to stop?

Thanks in advance

Danilo Jiménez
Union Pacific and DB Cargo H0 models.
Märklin, Brawa, MTH and some Walthers cars (nobody is perfect!)
Pinball machines, jukeboxes and Horses.
Costa Rica, pura vida!!
Offline scraigen  
#2 Posted : 05 April 2016 18:47:19(UTC)
scraigen


Joined: 29/01/2009(UTC)
Posts: 296
Location: Sheffield,
Hi,

Assuming that this is the older style turntable, I don't believe it does anything other than retract the locating pin, and reconnecting power to the turning motor. Once the locating pin drops into the next track slot the motor stops.

EDIT: May have been a bit hasty there, I was thinking of 7186, not sure about 7286 - sorry

Cheers

Stu
Must build something
Offline JohnjeanB  
#3 Posted : 08 April 2016 12:42:54(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 1,652
Location: Paris, France
Hi

I have a modified 7286 using that exact same principle:
UserPostedImage
UserPostedImage

On the left of the first picture you can see the "optical disk attached to the main driver and the opto sensor to detect the position.
This is part of a kit by Sven Brandt , the DSD2010, including a processor board on the TT and another one on the bottom
You can see the result on this video (including a TT SUSI sound board.

Video
Cheers from Paris

Jean
My layout videos
latest vid
hump yard
thanks 1 user liked this useful post by JohnjeanB
Offline Hackcell  
#4 Posted : 09 April 2016 17:27:42(UTC)
Hackcell

Costa Rica   
Joined: 21/11/2013(UTC)
Posts: 521
Hello Jean,

What do you install at the inner side of the turntable to make the optosensor work? I mean, you had to install something else on the turntable itself (not on the bridge) to "close the optosensor circuit". What was it?

Edited by moderator 09 April 2016 22:28:21(UTC)  | Reason: Not specified

Danilo Jiménez
Union Pacific and DB Cargo H0 models.
Märklin, Brawa, MTH and some Walthers cars (nobody is perfect!)
Pinball machines, jukeboxes and Horses.
Costa Rica, pura vida!!
Offline JohnjeanB  
#5 Posted : 10 April 2016 00:21:29(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 1,652
Location: Paris, France
Hello Danilo,

The kit (DSD2010) includes
1) an infra-red photo-sensor
2) a Turn Table (TT) processor ¨(Bühne Processor)
3) a Supervising processor (Grube Processor).

Both the photo-sensor (1) and the TT processor (2) are mounted on the TT while the Supervising processor (3) is mounted outside the TT.
The photosensor is connected to the TT processor which counts the number of white bars on the "Optical Disk" to decide when to stop the TT. It receives from the Supervising processor the orders and computes the shortest way (which rotation direction) to reach the destination track.
The TT processor detects the occupancy of a loco on the TT (to stop it), drives the 4 signals on the TT (see on the video), drives the light and flashing light and the SUSI sound module (Klaxon and TT noise). A bit complicated and it took me 4 months to have all programmed and working but I like the result, it was Worth the effort.

The photo sensor is facing the optical disk: a self adhesive black paper with 2 crossing black bars (to send 4 impulses for complete turn of the master driver).
You may have more information here; Digital Bahn
Unfortunately the information is in German.
Cheers

Jean
My layout videos
latest vid
hump yard
Offline Hackcell  
#6 Posted : 10 April 2016 01:58:53(UTC)
Hackcell

Costa Rica   
Joined: 21/11/2013(UTC)
Posts: 521
Originally Posted by: JohnjeanB Go to Quoted Post
Hello Danilo,

The kit (DSD2010) includes
1) an infra-red photo-sensor
2) a Turn Table (TT) processor ¨(Bühne Processor)
3) a Supervising processor (Grube Processor).

Both the photo-sensor (1) and the TT processor (2) are mounted on the TT while the Supervising processor (3) is mounted outside the TT.
The photosensor is connected to the TT processor which counts the number of white bars on the "Optical Disk" to decide when to stop the TT. It receives from the Supervising processor the orders and computes the shortest way (which rotation direction) to reach the destination track.
The TT processor detects the occupancy of a loco on the TT (to stop it), drives the 4 signals on the TT (see on the video), drives the light and flashing light and the SUSI sound module (Klaxon and TT noise). A bit complicated and it took me 4 months to have all programmed and working but I like the result, it was Worth the effort.

The photo sensor is facing the optical disk: a self adhesive black paper with 2 crossing black bars (to send 4 impulses for complete turn of the master driver).
You may have more information here; Digital Bahn
Unfortunately the information is in German.
Cheers

Jean


Cool!
Now I have 2 questions for you:

1 - The computer software is to configure it?
2 - Does it work with just a CS2 or the computer is mandatory?
Danilo Jiménez
Union Pacific and DB Cargo H0 models.
Märklin, Brawa, MTH and some Walthers cars (nobody is perfect!)
Pinball machines, jukeboxes and Horses.
Costa Rica, pura vida!!
Offline JohnjeanB  
#7 Posted : 10 April 2016 10:45:41(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 1,652
Location: Paris, France
Hi Danilo,

The kit works with a factory-loaded software (included) on the processor boards.
Its parameters are set by a free-to-download software for a Windows PC:
- track positions
- type of turntable (Marklin, Roco, etc), number of tracks
- speed adjustments to obtain a precise stop in front of the track
- more parameters (sound level, flashing type,..)
The exchange with the Supervisor processor is through RS232 (must have a RS232 / USB convertor)

The kit may be driven by:
- a Marklin digital type of central station (CS1, CS2, CS3), DCC
- if no digital command an additional module is available w. digital indication of the position.
- directly by the PC and the free s/w

In my case it is driven by a CS2 which is supervised by a PC with Rocrail. This allows a fully automatic operation (see video)
Cheers

Jean
My layout videos
latest vid
hump yard
thanks 1 user liked this useful post by JohnjeanB
Offline Hackcell  
#8 Posted : 10 April 2016 23:12:10(UTC)
Hackcell

Costa Rica   
Joined: 21/11/2013(UTC)
Posts: 521
Originally Posted by: JohnjeanB Go to Quoted Post
Hi Danilo,

The kit works with a factory-loaded software (included) on the processor boards.
Its parameters are set by a free-to-download software for a Windows PC:
- track positions
- type of turntable (Marklin, Roco, etc), number of tracks
- speed adjustments to obtain a precise stop in front of the track
- more parameters (sound level, flashing type,..)
The exchange with the Supervisor processor is through RS232 (must have a RS232 / USB convertor)

The kit may be driven by:
- a Marklin digital type of central station (CS1, CS2, CS3), DCC
- if no digital command an additional module is available w. digital indication of the position.
- directly by the PC and the free s/w

In my case it is driven by a CS2 which is supervised by a PC with Rocrail. This allows a fully automatic operation (see video)
Cheers

Jean


It seems one of those kits may work for me. Not for a 7286, but for a CMR 135 feet turntable kit ( info here ) that I bought. It works with a 12VDC, 1rpm motor. It's meant to work on DC, but I want to Märklinize it.

Why this instead of a M turntable? Simple, the 4014 neither the MTH SP 4449 fits on a 7286 turntable.
Danilo Jiménez
Union Pacific and DB Cargo H0 models.
Märklin, Brawa, MTH and some Walthers cars (nobody is perfect!)
Pinball machines, jukeboxes and Horses.
Costa Rica, pura vida!!
Offline JohnjeanB  
#9 Posted : 11 April 2016 00:23:01(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 1,652
Location: Paris, France
Hi Danilo,

You really need the computer to configure the tracks used on the tt and the turnout address assigned to each of them.
Then a CS2 may drive it as turnouts.
Below one of the configuration screens
[img=UserPostedImage]Track definition screen[/img]
Note: This software works also in English
Cheers

Jean

Edited by user 14 April 2016 13:38:44(UTC)  | Reason: Not specified

My layout videos
latest vid
hump yard
thanks 1 user liked this useful post by JohnjeanB
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