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Manual DINAMO Plug & Play Control your miniature world
Page 30 of 32 Version 1.2 – Dec 21
st
, 2017  2017 Leon van Perlo
7.4 Delivering Track-power to Turnouts via Relays
In paragraph
7.3 we explained that in some cases it is necessary to power the tracks on
turnout groups separately. If you don’t want to do that with an additional block-output or if
you cannot do that because your software does not support it, you can solve this with a
relay, controlled from an OC32 output. Since the track, the relay powers, is only occupied
while the train passes to or from the adjacent blocks there is functionally no disadvantage,
except that it requires an electromechanical component and it may be slightly more complex
to wire.
We look again at the example from paragraph
7.3, the crossing turnout. To deliver power to
the tracks you need a relay with two crossover contacts (DPCO = Dual Pole Cross Over).
Each contact has 3 terminals on the relay: C (common), B (break) and M (make). If the relay
is not activated, C is connected to B and M is isolated. If the relay is activated, C is
connected to M and B becomes isolated. Besides the 2 x 3 terminals, on the relay you’ll find
2 additional terminals for the relay activation-coil. On some models you will encounter an
ex (plus) and – (minus) pole, but in most cases it will be irrelevant in which direction
current flows through the coil.
The relay activation-coil is connected to an OC32 output with sink-driver. In the example
below (figure 35) both “C” terminals are wired to rail A and B of turnout T1. The “B”
terminals are wired to the A and B3 connections of block 1. The “M” terminals are wired to
the A and B3 connections of block 3. We assume in this example that sections B3 of blocks
1 and 3 are not in use by the block itself.
If you have wired the setup according to figure 35, you need to instruct your PC control
software when the relay shall be activated. When a train passes from or to block 1, the
relay shall
not be activated. When a train passes from or to block 3, the relay shall be
activated.
Fig 35: Connecting turnout tracks by relays
Relays for this application can be obtained from a regular electronics components store.
Types that are specified to switch 1Amp per contact are fine. Also the VPEB partners offer
ready-made modules with one or more relays, equipped with pluggable connectors or screw-
type terminals for easy wiring. Often you’ll find an additional LED, that shows whether the
relay is activated. Not absolutely necessary, but it may come in handy while troubleshooting.
1A
3B2 3B1
1B1 1B2
block 3
block 1
block 4
T1 block 2
M C B
M C B
+
-
3A
3B3
1B3
1A
3A
TM44
OC32
Vp
OC32 output, sink driver
1A
3B2 3B1
1B1 1B2
block 3
block 1
block 4
T1 block 2
M C B
M C B
+
-
M C B
M C B
+
-
3A
3B3
1B3
1A
3A
TM44
OC32
Vp
OC32 output, sink driver
Control your miniature world Manual DINAMO Plug & Play
 2017 Leon van Perlo Version 1.2 – Dec 21
st
, 2017 Page 3 of 32
Contents
1
Dinamo .................................................................................................................. 4
1.1 Principle .......................................................................................................... 4
1.2 Blocks and sections.......................................................................................... 4
1.3 Dinamo Plug & Play........................................................................................... 5
2 RM-C/1+................................................................................................................ 7
2.1 Introduction ..................................................................................................... 7
2.2 Communication, power supply and mounting ....................................................... 7
2.3 LED indicators ................................................................................................. 7
2.4 PC Connection ................................................................................................. 7
2.5 Testing using DinamoConfig (Windows) and learn some of the basics .................... 8
3 TM44................................................................................................................... 11
3.1 Functions ...................................................................................................... 11
3.2 Overview of the TM44 and location of connections and functions........................ 11
3.3 Mounting ....................................................................................................... 12
3.4 Connect Power Supply to the TM44................................................................. 12
3.5 Capacity and Choice of Power Supply ............................................................... 13
3.6 Safety ........................................................................................................... 13
3.7 Power Supply Cabling...................................................................................... 13
3.8 Connecting Blocks to the TM44....................................................................... 14
3.9 Cabling of Blocks ............................................................................................ 14
4 OC32/NG ............................................................................................................. 16
4.1 Introduction ................................................................................................... 16
4.2 Overview of the OC32/NG and location of connections and functions .................. 17
4.3 Mounting the OC32/NG .................................................................................. 17
4.4 OC32/NG Power Supply .................................................................................. 18
5 The Dinamo RS485 network ................................................................................. 19
5.1 Wiring the network......................................................................................... 19
5.2 Terminators ................................................................................................... 20
5.3 Addressing .................................................................................................... 22
5.3.1 TM44 Addressing .................................................................................... 22
5.3.2 TM44 Master/Slave ................................................................................. 23
5.3.3 OC32 Adressing ...................................................................................... 23
5.3.4 Changing Addresses ................................................................................ 24
6 Commissioning your Dinamo system ....................................................................... 25
6.1 Power-up your system .................................................................................... 25
6.2 Testing communication ................................................................................... 25
6.3 Some additional words on DinamoConfig ........................................................... 27
6.4 Configuring your OC32/NG’s............................................................................ 27
7 Turnouts .............................................................................................................. 28
7.1 Provide track power to turnouts ..................................................................... 28
7.2 Turnout groups, Block Separations, Section Separations .................................. 28
7.3 Addtitional Pseudo-blocks ............................................................................... 29
7.4 Delivering Track-power to Turnouts via Relays................................................... 30
Appendix A: TM44 Address Table .................................................................................. 31