16
7. LED signals
Track current switched on: LED permanently switched on
Track current switched off: LED flashes slowly
Short circuit at track exit: LED flashes quickly
Loco being programmed: LED flashes twice briefly with longer pause
Technical data
• Data format: DCC with 28 loco speed levels
• Loco addresses: 1-127, address 0 controls a loco without decoder on the digital circuit
(i.e. a conventional loco)
• Special loco functions: lights and f1-f8
• Accessory addresses (turnouts, signals etc): 1-256
• Refresh cycle: 12 locos
Refresh cycle: if the power to a loco is interrupted for more than 1 second, the decoder
switches to stop. Since this often happens on a layout, the data from the control centre
is sent to the locos repeatedly all of the time that the loco is operating. This is called
the refresh cycle. The PIKO Digi 1 refreshes a maximum of 12 locos. If more than 12
locos are on the layout it can happen that a 13th loco suddenly comes to a standstill
because it hasn't been refreshed. In this case it must be selected again and receive new
commands.
• Input voltage: from 12 V to 16V AC/DC
(N.B.: none of the power sources must exceed 16 V. If several mains adapters or trans-
formers are connected to the PIKO Digi 1 and the PIKO Digi 2, their voltages must be
within the range 14 V to 16 V.)
• Output current: max 1.8A
• Max. power pickup: 28VA
(N.B.: mains adapters or transformers of more than 45 VA capacity must not be connec-
ted to the PIKO Digi 1 or PIKO Digi 2. Doing so can lead to damage to the electronic
components.)
• Mains adapter included # 55010 in start sets : max 12 VA
• T3 Desk top transformer included in the PIKO digital basic set, # 55005: max. 28 VA
Maximum controllable locomotives: two
As described above up to 127 locomotives can be controlled using the PIKO Digi 1.
However, this does not mean that 127 locos can be driven using the mains adapter supplied with
the PIKO Digi 1.
Since each locomotive requires a certain amount of current, depending on its type between
300mA and 400mA, and some locos under load (i.e. when pulling a long train) use a lot more, no
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