tams elektronik KSM-2 User manual

tams elektronik
Manual
KSM-2
Item no. 49-01125 | 49-01126 | 49-01127
Loop module
for digital model railroad la outs
tams elektronik
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tams elektronik
English KSM-2
Contents
1. Getting started............................................................................3
2. Safet instructions.......................................................................5
3. Safe and correct soldering...........................................................7
4. Operation overview.....................................................................9
5. Technical specifications..............................................................13
6. Assembling the kit.....................................................................14
7. Connecting the KSM-2...............................................................23
8. Check list for troubleshooting.....................................................27
9. Guarantee bond........................................................................29
10. EU declaration of conformit ......................................................30
11. Declarations conforming to the WEEE directive...........................30
© 10/2015 Tams Elektronik GmbH
All rights reserved. No part of this publication ma be reproduced or
transmitted in an form or b an means, electronic or mechanical,
including photocop ing, without prior permission in writing from Tams
Elektronik GmbH.
Subject to technical modification.
Remark: RailCom® is the registered trademark of the Lenz Elektronik
GmbH, Hüttenbergstraße 29, D-35398 Gießen. To increase the text´s
readabilit we have refrained from refering to this point in each
instance.
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KSM-2 English
1. Getting started
How to use this manual
This manual gives step-b -step instructions for safe and correct
assembl of the kit and fitting and connecting of the read -built
module, and operation. Before ou start, we advise ou to read the
whole manual, particularl the chapter on safet instructions and the
checklist for trouble shooting. You will then know where to take care
and how to prevent mistakes which take a lot of effort to correct.
Keep this manual safel so that ou can solve problems in the future. If
ou pass the kit or the read -built module on to another person, please
pass on the manual with it.
Intended use
The loop module KSM-2 is designed to be operated according to the
instructions in this manual in model building, especiall with model
railwa s. An other use is inappropriate and invalidates an guarantees.
The KSM-2 should not be assembled or mounted b children under the
age of 14.
Reading, understanding and following the instructions in this manual
are mandator for the user.
Caution:
The KSM-2 contains integrated circuits. These are ver sensitive to
static electricit . Do not touch components without first discharging
ourself. Touching a radiator or other grounded metal part will
discharge ou.
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Checking the package contents
Please make sure that our package contains:
one kit, containing the components listed in the parts list
( page 18) and one PCB or
one read -built module with a jumper put onto JP1 or
one read -built module with a jumper put onto JP1 in a housing
(complete unit),
a CD (containing the manual and further information).
Required materials
For assembling the kit ou need:
an electronic soldering iron (max. 30 Watt) or a regulated soldering
iron with a fine tip and a soldering iron stand,
a tip-cleaning sponge,
a heat-resistant mat,
a small side cutter and wire stripper,
as necessar a pair of tweezers and long nose pliers,
electronic tin solder (0,5 mm. diameter).
In order to connect the module ou need wire. Recommended
diameters: > 0,25 mm² for all connections.
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tams elektronik
KSM-2 English
2. Safet instructions
Mechanical hazards
Cut wires can have sharp ends and can cause serious injuries. Watch
out for sharp edges when ou pick up the PCB.
Visibl damaged parts can cause unpredictable danger. Do not use
damaged parts: rec cle and replace them with new ones.
Electrical hazards
Touching powered, live components,
touching conducting components which are live due to malfunction,
short circuits and connecting the circuit to another voltage than
specified,
impermissibl high humidit and condensation build up
can cause serious injur due to electrical shock. Take the following
precautions to prevent this danger:
Never perform wiring on a powered module.
Assembling and mounting the kit should onl be done in closed,
clean, dr rooms. Beware of humidit .
Onl use low power for this module as described in this manual and
onl use certified transformers.
Connect transformers and soldering irons onl in approved mains
sockets installed b an authorised electrician.
Observe cable diameter requirements.
After condensation build up, allow a minimum of 2 hours for
dispersion.
Use onl original spare parts if ou have to repair the kit or the
read -built module.
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Fire risk
Touching flammable material with a hot soldering iron can cause fire,
which can result in injur or death through burns or suffocation.
Connect our soldering iron or soldering station onl when actuall
needed. Alwa s keep the soldering iron awa from inflammable
materials. Use a suitable soldering iron stand. Never leave a hot
soldering iron or station unattended.
Thermal danger
A hot soldering iron or liquid solder accidentall touching our skin can
cause skin burns. As a precaution:
use a heat-resistant mat during soldering,
alwa s put the hot soldering iron in the soldering iron stand,
point the soldering iron tip carefull when soldering, and
remove liquid solder with a thick wet rag or wet sponge from the
soldering tip.
angerous environments
A working area that is too small or cramped is unsuitable and can cause
accidents, fires and injur . Prevent this b working in a clean, dr room
with enough freedom of movement.
Other dangers
Children can cause an of the accidents mentioned above because the
are inattentive and not responsible enough. Children under the age of
14 should not be allowed to work with this kit or the read -built
module.
Caution:
Little children can swallow small components with sharp edges, with
fatal results! Do not allow components to reach small children.
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In schools, training centres, clubs and workshops, assembl must be
supervised b qualified personnel.
In industrial institutions, health and safet regulations appl ing to
electronic work must be adhered to.
3. Safe and correct soldering
Caution:
Incorrect soldering can cause dangers through fires and heat. Avoid
these dangers b reading and following the directions given in the
chapter Safety instructions.
Use a small soldering iron with max. 30 Watt or a regulated
soldering iron.
Onl use electronic tin solder with flux.
When soldering electronic circuits never use soldering-water or
soldering grease. The contain acids that can corrode components
and copper tracks.
Insert the component connecting pins into the PCB´s holes as far as
possible without force. The components should be close to the
PCB`s surface.
Observe correct polarit orientation of the parts before soldering.
Solder quickl : holding the iron on the joints longer than necessar
can destro components and can damage copper tracks or soldering
e es.
Appl the soldering tip to the soldering spot in such a wa that the
part and the soldering e e are heated at the same time.
Simultaneousl add solder (not too much). As soon as the solder
becomes liquid take it awa . Hold the soldering tip at the spot for a
few seconds so that the solder flows into the joint, then remove the
soldering iron.
Do not move the component for about 5 seconds after soldering.
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To make a good soldering joint ou must use a clean and unoxidised
soldering tip. Clean the soldering tip with a damp piece of cloth, a
damp sponge or a piece of silicon cloth.
Cut the wires after soldering directl above the soldering joint with a
side cutter.
After placing the parts, please double check for correct polarit .
Check the PCB tracks for solder bridges and short circuits created b
accident. This would cause fault operation or, in the worst case,
damage. You can remove excess solder b putting a clean soldering
tip on the spot. The solder will become liquid again and flow from
the soldering spot to the soldering tip.
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4. Operation overview
Loop problems
At the loop points in two-rail-s stems, different polarities meet with
each other. As soon as a vehicle bridges the differentl polarized
sections when driving in or out the terminal loop a short circuit occurs.
In digital la outs loop modules generall have to adapt the polarit
within the terminal loop to the one outside. In case the polarit outside
the terminal loop would be altered, different polarities would meet with
each other at the transition to the next booster section. Thus the
problem would be misaligned onl .
Fig. 1: Short circuit problem at the loop points
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tams elektronik
English KSM-2
Mode of operation of the KSM-2
The loop module KSM-2 changes the polarit within the loop before a
short cicuit occurs – independentl of the locomotive´s direction of
travel or the data format used to control the locomotive.
For that purpose transition zones are added between the la out and the
inside of the terminal loop. Integrated track bus modules detect the
direction of travel and position of the locomotive in the transition zones
and in the section within the loop. As long as onl one of the two track
bus indicators in the transition zones detects "bus ", the locomotive is
about to drive into the loop. When the section within the loops detects
"bus " as well, the locomotive is going to drive out of the loop.
Procedure
Phase 1: The two transition zones are switched currentless initiall .
Phase 2: After a locomotive has come into one of the two transition
zones, the integrated track bus indicator sends a bus message to a
micro controller on the printed circuit board. The micro controller
controls a rela which sets the "right" polarit within the loop. There is
no short circuit occuring as the locomotive is within the transition zones
which initiall is currentless.
Phase 3: After having set the polarit within the loop "properl " the two
interruptions at the initiall currentless transition zone are closed b an
integrated switch and the transition zone is supplied with current.
As a rule, the short interruption of the power suppl at the locomotive
´s front axle when coming into the initiall currentless transition zone
has no visible effects on the locomotive´s driving characteristics.
Phase 4: Shortl after the locomotive has left the transition zone (and
there is not sent a "bus "-message from this zone an longer), the
transition zone is switched currentless again.
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