DAISY
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4. Analog system use
4.1 Power 2 as an analog layout control system
The Power2, along with a LocoNet throttle (e.g., a DAISY throttle, an
IB-Control, a FRED, a Profi-Control etc.), can be used to control an
analog layout.
The locomotives are controlled by a pulsed high voltage current (PWM
– Pulse Width Modulation). This allows for smoother operation at low
speeds. Furthermore, similarly to what occurs with digital layouts, it is
possible to control the acceleration/deceleration delay, to activate
switching speed (half speed), to select normal or Faulhaber motor
PWM frequency (low or high PWM frequency), etc. All these para-
meters can be individually set for every Power2 (every electric circuit,
i.e., every layout section).
Important
Digital locomotives (i.e., locomotives equipped with a digital decoder)
should not be used on an analog layout powered by a PWM power
supply (such as a Power2 in analog mode). Any digital locomotive used
in this manner will not function and even risks being damaged if the
PWM votlage is too high (which is not the case with a Power2).
Up to 63 isolated electric circuits (layout sections) can be controlled
through an equal number of Power2’s (powered by an equal number of
transformers). All Power2’s are connected together using a LocoNet
cable – we will shortly describe how to do this. Every throttle connected
to LocoNet can take control of each electric circuit (Power2) by using
an automatically assigned identification number. Crossing between
electric circuits is supported.
It is also possible to configure one Power2 to interpret the turnout/signal
commands issued by throttles or other devices (e.g., IB-Switch, Switch-
Control, etc.) and convert them to digital commands for DCC accessory
decoders. This allows analog train operation and digital turnout/signal
control.
The following Uhlenbrock devices can be used to control trains by
Power2’s in analog mode (of course, throttles from other manufacturers
can also be used): DAISY throttle (66 200), FRED throttle (66 000), IB-
Control (65 200) and Profi-Control (65 500).
4.2 How to connect a Power2 in analog mode
In order to control a section of an analog layout, each Power2 must be
connected to the rails (pertaining to the desired layout section) and to a
transformer.
The Power2’s are connected together as follows. The LocoNet con-
nector of the “previous” Power2 is connected to the “DAISY” connector
of the ”next” Power2. Implicitly, this defines an order among the
Power2’s: the first Power2 (the Power2 with number “1”) is the one
which does not have anything connected to its “DAISY” connector. The
next Power2 (the one which is connected, through its “DAISY” con-
nector, to the “LocoNet” connector of Power2 #1) is Power2 #2, etc.
Summary of Contents for DAISY
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