roco Z21 switch DECODER User Manual

The Z21 is a FLEISCHMANN and ROCO innovation.
43
English
Colour Status Meaning
Blue
Red
Green
White
on
on
on
on
Wait for data/commands from zLink.
Bootloader mode active.
Blue
Red
Green
White
on
on
ashes briey
on
Data/commands are processed by the zLink.
Bootloader mode active.
Bootloader mode (e.g. during rmware update)
8. Troubleshooting
Error ashes red:
The outputs of the Z21 switch DECODER are electronically protected against overload and short circuits via permanent measurement of
the total current. The maximum switch output of the decoder is 2.0 A. In the short term, even up to 2.5 A are permitted for ≤100 ms. If
the total current of all outputs permanently exceeds 2.0 A, all outputs are switched off and the red “Error” LED ashes for 3 seconds.
During this time, the decoder does not accept any new switch commands. The decoder then resumes normal operation. The outputs
are not switched back on automatically here, however, to simplify troubleshooting: Then manually switch the outputs on individually
(multiMAUS, App, …) to nd the actual cause of the short circuit.
Track numbers are shifted by four:
Check that the set addressing mode matches your control centre. Operation on control centres from other manufacturers.
POM read (RailCom
®
) is not functioning:
Check the correct connection on the Z21 (P and N). See section Installing the Z21 switch DECODER.
It may be that other control centres are not compatible with RailCom
®
.
Connected LED is not lit:
Ensure that the polarity is correct. The central connection to the corresponding output is the common plus. See section Installing the
Z21 switch DECODER.

roco Z21 switch DECODER Specifications

General

Brand	roco
Model	Z21 switch DECODER
Category	Switch
Language	English