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Silver Direct Locomotive decoder

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The DIGITAL plus SILVER locomotive decoder has a built in NMRA 8 pin plug and is suitable for
all DC locomotives with continuous current draw of 1.0 Amp. or less. That have a DCC Medium
plug socket. The characteristics of the decoder are:

Super smooth and silent high frequency back-emf motor control.

Asymmetrical DCC support including directional stopping.

Adjustable precision stopping control.

Low speed gear for switching operations.

Selectable for operation with 14/27, or 28/128 speed steps.

Operation on conventional DC layouts is possible or can be disabled.

Motor output = 1A continuous, 1.8A max, > 5 A stall.

Motor and function outputs protected.

Four function outputs rated at 100mA each with advanced function mapping.

Directional or independent lighting with dimming and special effects.

Support for Advanced Consist Control and Extended Addressing.

Support for programming on the mainline (operations mode programming).

Support for all form of programming as described in NMRA RP-9.2.3

Supports service mode decoder lock.

Size: L 0.71" x W 0.50"x H 0.14" L 18mm x W 12.9 mm x H 3.6mm
Silver Direct Silent
Back EMF DCC Decoder

Art. No. 10330

February 2007


Core software based on
NMRA Conforming
Silver MP Decoder Silver Direct Locomotive decoder
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SILVER Decoder feature set


The following contains a short introduction of the features of the SILVER decoder as
well as information on how to use them.
For more detailed information please refer to the "SILVER decoder" information which
can be downloaded from the Lenz Elektronik GmbH website: www.lenz.com.
Capacity and protection equipment
The motor output has a current-carrying capacity of up to 1A without any concern for
cooling! The short-term maximum current-carrying capacity is 1.8A. The decoder is
protected against overloading, short circuits and overheating. In case of a fault, a bit is
set in CV30 which will state the type of fault which has occurred. This bit can be
cleared via setting this CV to 0. Because of this protection the Silver decoder can work
with motors that have very high stall currents.
Maximum continuous current-
carrying capacity of total decoder
1.1 Amps
Motor output -
Continuous / peak motor / locked
rotor stall
1.0 Amps / 1.8 Amps / > 5 Amps
Function output A, B, C and D
100 mA each
Total current-carrying capacity of
function outputs
400 mA
High Frequency Back EMF Motor control
Silver decoders have a very smooth and quiet high-frequency motor control (23kHz). If
necessary, the performance of the decoder can be optimized to one of 6 specific motor
types in the locomotive using CV50. These motor types include parameter sets which
have been specially adapted to the respective models. In addition, it is possible to
perform additional fine-tuning via CV113 or CV114 when selecting motor types 4 or 5.
If desired you can switch off both the high-frequency drive as well as the control
system itself. You can still use CV9 to adjust the repetition rate.
The minimum (CV2), maximum (CV5) and mid (CV6) speeds can be set; the decoder
automatically adapts these desired speed parameters dynamically to ensure a steady,
smooth curve. It is also possible to program a user defined unique speed curve.
The decoder also has what we refer to as an EMF switch which makes it possible to
further adjust the decoder to different motor types. Depending on the motor type used,
it is possible that a digitally controlled locomotive cannot reach an adequate maximum
speed compared to a locomotive in conventional operation. If this is the case, activate
your EMF switch by setting Bit 6 in CV 50. The locomotive will then reach a higher
maximum speed while the minimum speed is also slightly increased.
Special Features Silver Direct Locomotive decoder

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Function for disabling of acceleration and deceleration delay
Use function F4 (function assignment can be altered in CV59) to disable the
acceleration and braking delay as well as the constant braking distance during
operation. The delays are disabled as long as the function is active.
Switching speed function
The switching speed halves the speed table. This facilitates particularly sensitive
control during the switching process. Use function 3 (function setting, can be altered in
CV58) to enable and disable the switching speed. If the shunting speed is enabled, the
constant braking distance is disabled. The switching speed is enabled as long as the
function is active
Constant braking distance
During the transition from an active speed step to speed step 0 (e.g. moving the speed
control knob to the left limit-stop), the locomotive/train will travel a settable, pre-defined
braking distance. This braking distance does not depend on the speed of the
locomotive/train.
Enable the constant braking distance function (this requires setting Bit 0(1) in CV51. If
this bit is not set, the decoder will use the normal speed-dependent braking delay).
The braking distance is defined by the value set in CV52. Since the motors and gear
ratios of locomotives vary, the braking distance differs from locomotive to locomotive
even if the same value is set in CV52.
Use a short test section to measure how long your locomotives braking distance will
be with a given value set in CV52. Start with the default value (100) in CV52.
Accelerate your locomotive until it has reached average speed.
At a chosen point in time, set the speed to 0. This requires moving the speed control to
the stop position, if you are using the LH100, keep pressing the < key until the speed is
set to 0 or until the locomotive address is displayed (if using the LH100, do not press
key
! This result in a locomotive-specific emergency stop and the delays in the
locomotive decoder will not be enabled!).
Measure the covered braking distance.
Increase or decrease the value in CV52, e.g. in steps of 10, and carry out another
measurement. You will thus create a table which will indicate the braking distances in
relation to the values set in CV52.
Important advice: The constant braking distance is only effective if the speed is
changed to 0. If the speed is decreased from e.g. 28 to 10, the speed-dependent delay
from CV4 becomes effective.
The constant braking distance is disabled while the switching speed function is
switched on (default setting F3), or if the function to disable acceleration/deceleration
is activated (default setting F4). Either of these two features can also be used if you
wish to interrupt a constant braking process prematurely. Silver Direct Locomotive decoder
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The constant braking distance does not function in analogue DC mode.
Mapping function outputs
Using function mapping (CVs 33-46) you can define which functions of the digital
system are used to control the A, B, C and D function outputs. The outputs A, B and C
can be allocated to function F0 (direction-dependent) or functions F1 to F8 as desired.
Output D can be allocated to function F0 (direction-dependent) or functions F1 to F12
as desired.
Lighting effect at function outputs
Special lighting effects can be assigned to each of the function outputs. The lighting
effects for the function outputs A and B are set in CV60 and for the function outputs C
and D in CV62. If you wish to switch the effects with a function of the digital system,
you can make the allocations to functions F1 to F8 in CV61 (for function outputs A and
B) and CV64 (for function outputs C and D). The effects available are shown in the CV
table defined later in this manual.
Asymmetrical DCC = Automatic Braking Control
simple signal stop and slow approach
You can carry out a particularly simple stop at a signal using the ABC braking module.
Depending on the signal position, this module creates an asymmetric track voltage in
the braking section in front of the signal. The decoder reacts to this. Combined with the
constant braking distance, precise on-the-spot stopping in front of red signals is not a
problem. Of course, passage in the opposite direction is also possible. The signal
indication "slow approach/caution" can be set using CV53.
You can operate all functions during the signal stop or slow approach you can even
reverse away again from the red signal! These special ABC modules can be used to
assemble a very simple block section.
Activate the ABC control by setting Bit 2 (1) in CV51.
Push-pull train control
A push-pull train control can be set if the ABC braking module is used. There are two
different options: push-pull operation with and without intermediate stops. The latter
also takes slow-approach sections into account.
The push-pull train control is activa