Nobody?

Yes i remember that topic.
To use with mfx m83 like 60832 you have to use accessory set 60821 for the turnout motor.

If i use m84 i´m pretty sure the power still remains on to the motor.
I want more safety by use m83 and pulse time until power from the m83 shuts off after switched over.

Hello Goofy,

here you see (probabely hear it too but it is in German) the usage of a m83.



An m84 Märklin uses eg for block sections



Here you see Märklin's complete YouTube videos.

https://www.youtube.com/...UC_ulAkE0RxHUEhpvWf49pRQ

Regards

TEEWolf

The Marklin videos refer to standard Marklin applications of the m83 and m84.

Turnout motors by Tortoise or others are a special case. Since the Tortoise motors Anders intends to use have stall protection the m84 can be used, the current is not shut off by the decoder, but by the turnout motor internals themselves. Alternately, the m83 can be used with the addition of the 60821 interface circuit (maybe this is just the pair of diodes for reversing operating direction of the turnout motor?). The question, I think, is: "What CV values should be used when programming the m83 for a turnout motor?" The m83 will shutoff the turnout operating current at the end of the cycle. The pulse width (operating speed) and period (operating time) CV values are what must be determined to get the desired operating speed for the turnout and to ensure that the points are thrown to the required limits. Unfortunately, the 60821 instruction sheet only suggests to use the m83 in switching function 17 (where the period CV yields the minimum switching time), but does not give any hints on ideal values for pulse width and period. I think these last two values will have to be determined by trial and error. Since there is a lack of response to Anders' request, it seems noone has done this. Therefore, Anders, you must do it yourself and please share your results for future reference.

Caution! I do not have experience in this specific application. I am only describing what I understand from reading the various manuals.

For reference sake, for those who are not familiar with Tortoise motors, here is their instruction sheet: Tortoise Slow Motion Turnout Motor

Cheers,

Harold.

Hello Goofy,

since @Harry has set up this link to the Tortoise motor, I had no idea about such a motor. I only know that the switching speed is set up by the decoder. From Märklin I only know one turnout motor (for C-track) 74491. But Viessmann has a special motor including decoder for a very slow turnout switch. Here is a video (at 02:08 you see the shifting speed at the turnout)



Do you remember the series about the new Märklin decoders m83 and m84 in the Märklin Magazines 2013/2014?

https://www.maerklin.de/...men-specials-und-serien/

(scroll down to "Next Generation") Series 3

https://www.maerklin.de/...3_Digital_MM_2014_02.pdf

and 5

https://www.maerklin.de/...5_Digital_MM_2014_04.pdf

shall be of particular interest to you.

In part #3 page 27 following (02/2014 MM) is a description of the difference between a m83 and m84.

"Kleine, aber feine Unterscheidungen
Wo ist denn nun der Unterschied zu einem Decoder m84, wenn
jetzt auch der Decoder m83 Dauerströme schalten kann? ..."

"small, but fine distinctions
Where is the difference to a decoder m84, when
now the decoder m83 can switch continuous currents? ..."

Perhaps it helps.

Regards

TEEWolf