H0 Sound Decoder MX640 Page 3
Since the capacity and speed of such circuits is limited, the track voltage should not be selected unnecessarily
high; that is not higher than recommended for the rolling stock in question. The full adjustable range of a Zimo
command station (up to 24V) should only be utilized in special cases. Although ZIMO decoders are suitable for
24V operation, that may not be the case when interacting with some other equipment.
THERMAL PROTECTION:
All ZIMO decoders have the ability to measure their own operating temperature. Power to the motor
will be turned off once that temperature exceeds 100
0
C. The headlights start flashing rapidly, at
about 5 Hz, to make this state visible to the operator. Motor control will resume automatically after a
drop in temperature of about 20
0
C, typically in 30 to 60 seconds.
As with all other ZIMO decoders:
D O – I T – Y O U R S E L F S O F T W A R E U P D A T E
Beginning with production date September 2004 (MX620 since introduction), ZIMO DCC decoders
are equipped to handle a software update by the user. A
ZIMO decoder update module (e.g.
MXDECUP
or
MX31ZL),
a PC with Windows operating system, a serial port (or USB and converter)
and the program
ZIMO Service Tool "ZST"
is required. The update module is used independent of
the command station and can therefore be used with any DCC system!
The same hardware and software is also used for sound project installations to sound decoders.
There is
no need to remove the decoder or to open up the locomotive.
Just set the locomotive
on a section of track connected to the update module and start the update with the computer.
See the
chapter “Software Update”
in this manual for more information on updating decoders or
visit www.zimo.at
SW updates are of course still available for a small fee by sending decoders to ZIMO or your ZIMO
dealer.
