Yes, true - and the thing looks like this:
http://www.buco-hag-maer...61216-90-permanentmagnet

It shouldn't really be brittle, unless you use a hammer to insert it. Somtimes it fits a bit tightly, but with gentle pressure you should be able to mount it without much difficulty.

Some HAG digital conversion advice here: http://www.forum.hag-inf...Thread&threadID=5291

Hello folks,

It took me a while to convert this loco, but it is now done.

The fact that it is a HAG loco had no influence on the conversion process (except the permanent magnet I got had the lower part unglued , but I could fix it).
But I decided to do this conversion with LED (tiny ones - 603 and 605) and it is much more difficult than when the bulb is tight to the chassis .

All the difficult parts are mechanical aspects:
- saw the original light guide in 3 pieces without breaking it
- glue tiny LEDs on each sawed part
- prevent the LED from illuminating all the inside of the loco
- manage all the bunch of wires in the loco body (it's like neuro surgery)
- put micro-connectors in order to remove the body from the chassis
...

As it is a Swiss loco, I've managed the 3+1 lighting mode, and to vary effects the possibility to have also 2 red lights at the opposite side instead of the +1 mode.

The decoder is a ESU Lokpilot M4 21MTC + additional plate 51968, in order to have 6 outputs (2 lights and AUX1 to AUX4).

Some pictures of the conversion:


The wiring schema


Rear body with LEDs and micro-connector.


Male micro-connector for rear body


Rear body in place


Front body with gray adhesive tape, to prevent too much light inside


Ready to put the front body in place


Ready to test with the ESU Lokprogrammer


3 white LEDs (rear)


With +1 white LED in the opposite side


2 rear red LEDs (instead of 3+1 mode); Front LEDs are white


Front white LEDs

With the help of the Lokprogrammer, I was able to easily program the various functions:
- F0 = 3+1 mode, depending on the direction
- F1 = disable +1 mode (Condition: F0 and F1) = 3 white LEDs, depending on the direction
- F2 = enable red lights at the opposite (Condition: F0 and F1 and F2) = 3 white LEDs + 2 opposite red LEDs, depending on the direction
- F3 = push mode = only the white +1 opposite is lit (Condition: not F0 and F3), depending on the direction. Used when a front loco pulls and a rear loco pushes a train
- F4 = Forces +1 at both end in switching mode (Condition: not F0 and not F1 and not F2 and not F3 and F4)
- F5 = Forces 2 red lights at both end in switching mode (Condition: not F0 and F2 and not F3 and F5)
- F6 = Switching mode
- F7 = ABV off
Without the lokprogrammer, it would have been a nightmare to write the various CVs, especially about the conditions...

Cheers
Fabrice

Hi !

Well, I think you want to know how to set up these complicated conditions...

First, have at hand the ESU lokpilot V4 doc, both in english (edition 6) and german (edition 11). The german edition fixes some incorrect charts.
All is explained in chapter 12, but it's a bit tricky. I've understood the meaning of the doc with the already filled values for CVs from the lokprogrammer software...

Here is my function mapping:


Now I'm going to explain you how to set up the CV for line 1 [F0(f)] and line 10 [F4(r)] as an example.

Example of programming for mapping line 1 [F0(f)]:

CV31=16; CV32=2 to be able to access mapping line 1 to 16

-Condition: Forward, and F0 on, and F1 off
All these conditions are contained in Control CV A, i.e. CV257 = 4 (fwd) + 16 (F0 On) + 128 (F1 Off) = 148 (see tables at chapter 12.2.2 & chapter 12.2.2.1)

-Output: Front light(1) and AUX1(1) and AUX2(1)
All outputs are contained in control CV K, i.e. CV 266 = 1 (output head light on conf 1) + 4 (output AUX1 on conf 1) + 8 ( output AUX2 on conf 1)=13 (see table at chapter 12.2.2.2)

-logical function Dimmer:
Control CV M i.e. cv 268=64 (Dimmer) -see german doc (Edition 11) at 12.2.2.3 for the value 64, english doc (Edition 6) value 16 is wrong

Summary part 1:
CV31=16
CV32=2
CV257=148
CV266=13
CV268=64

Now special effects for outputs:
Here are the pictures




CV31=16; CV32=0

*For Front light(1):
-Dimmable light [Mode select = 1 (CV259=1) ] with brightness=25 [CV262=25].
-LED Mode + Dimmer; [Special function CV 1 (CV263=16+128=144)]
*For AUX1(1):
-Dimmable light CV275=1 with brightness=25 CV278=25
-LED Mode + Dimmer; CV279=144
*For AUX2(1):
-Dimmable light CV283=1 with brightness=31 CV286=31
-LED Mode + Dimmer; CV287=144

Summary part 2:
CV31=16
CV32=0
CV259=1
CV262=25
CV263=144
CV275=1
CV278=25
CV279=144
CV283=1
CV286=31
CV287=144

Example of programming for mapping line 10 [(f4r)]:

CV31=16; CV32=2 to be able to access mapping line 1 to 16
-Condition: Reverse and F0 off and F1 off and F2 off and F3 off and F4 on. Use of control CV A and B for line 10 (CV 401 & 402)
CV401=8+32+128=168; CV402=2+8+16=26

-Output: AUX1(1) and AUX2(1). Use of control CV K (CV410)
CV410=4+8=12

-Logical function: Switching mode and Dimmer. Use of control CV M (CV412).
CV412=2+64=66

Summary part1:
CV31=16
CV32=2
CV401=168
CV402=26
CV410=12
CV412=66

Special effects for outputs: already set previously for AUX1(1) and AUX2(1)
Summary part 2:
Already defined in 1st example.

If needed, I can provide the full list of CV in text mode...

Cheers
Fabrice

I've applied the default setting for HAG motor type:

CV 002 = 4
CV 051 = 0
CV 052 = 15
CV 053 = 100
CV 054 = 40
CV 055 = 175
CV 056 = 200

It runs very smoothly...

Cheers
Fabrice

Hi John,

- About the 51968: I've ordered a kit 64635 to have some spare magnets (for further conversions) and used that kit for the decoder. The 51968 plate provided hasn't AUX5 & AUX6. Instead the 2 additional soldering points are labeled U+ twice (should be same as blue wire ?).
Maybe the combo kits are used to get rid of old plate version ?
Next time, I will order a single 51968...

- Good idea about the dimmed/full light. I'll try it.

- About the switching mode with two +1 lights on or two red lights on, it's to mimic some behavior I've found on other locos. But I don't know if it matches the real or not

Cheers
Fabrice

John, I didn't misunderstand you, but my answer might have been unclear.

Looking at my mapping table for lines (f4f, f4r) and lines (f5f, f5r), I've chosen when having either +1 LEDs lit on each side at same time (or red LEDs lit on each side at same time) to be in slow mode (switching mode). I did it on purpose.

However, I still have the switching mode alone available on key F6...

Cheers
Fabrice

Edited by user 01 September 2017 21:01:50(UTC)  | Reason: Not specified

Thanks! I'll try these settings soon and report back!