Lokommander II Next18 ECU
User Manual firmware 5.10.306
Version 0.5.07
Page 54 of 118
To connect the SPP modules, use the 3 soldering pads located on one of the Lokommander II sides (see
General description of Lokommander II decoders). Please refer to SPP user manual - installation instruction.
SPP sources work only in digital mode
(bit2 of CV29 = “0”)
, in combined analogue/digital mode (Bit2
of CV29 = “1”)
.
SPP startup delay is configurable with CV124. This setting is useful when several decoders with SPPs
are present on the track and if all SPPs will start charging immediately after power on, there will be a high
current peak that can be interpreted as a short circuit on the rails. The delay is expressed in seconds. The
factory default delay setting is 10s.
The SPP modules allow locomotives to run for up to 4 seconds without DCC power from rails
(depending on locomotive consumption and capacitor charge status). For safety reasons, this duration can be
defined in CV123 as a multiple of 16ms. The factory default value is 16 that means that the locomotive will
perform an emergency stop after 0.25s (16 * 16ms = 256ms) after the DCC power is not present on the rails.
The emergency stop will be performed even if the SPP capacitor is not completely discharged. The
locomotive will resume the motion only after the DCC signal is present again.
Note that the SPP will require about 300mA to fully charge. The full charging time is up to 2
minutes if the capacitor is completely discharged. Refer to the SPP user manual for more details.