INSTRUCTION MANUAL CENTRAL COMMAND STATION MX10, MX10EC Page29
Overcurrent (short circuit) on track 1 or track 2
screen colour changes to
RED
,
or undervoltage on track 1 or track 2
STOPP & OFF screen.
Starting point in this example: Normal screen
BLUE
Overcurrent and undervoltage messages are shown on
every screen of the MX10 (e.g. LOCO, SERV PROG,...)
OVC = overcurrent
= current reached OVC threshold;
Turn-off because of overcurrent of the track on
which overcurrent (short circuit) was detected.
UND = undervoltage
= power supply unit cannot provide the necessary
primary voltage to enable the necessary running
voltage. The primary voltage has to be at least 3 V
higher than the configured running voltage!
Those screens are the same as after starting broadcast stop (
“BCS”
or
“OFF”
) (except the text
“
OVC”
or
“UND”
) from the MX10 or the controller. Therefore, also the procedure to re-start, etc. is the same:
Button 1
track-1
The states of track 1 and track 2 (independently
or
with individual keys each) can be switched cyclically:
Button 2
track 2
OVC
(overcurrent) ->
ON
(normal operation)
BCS
(broadcast stop)
OFF
(turned off)
ON
...
e.g. turning on again with
button
1
(
):
switches automatically
(after 1 sec) to normal
screen
BLUE
.
... in case both track outputs are turned on again, the normal operation is reinstalled.
If it is not possible to start the normal operation via turning on both track outputs, the error which
caused the OVC or UND is still not solved (principle of a FI). It is turned off again after the defined turn-
off time (VOLT & AMPERE detailed settings).
Described in the following: Reaction of the device and handling defects.
The notifications
“WOC”
and
“VTG”
described in the following, only occur in case the MX10 has a
hardware defect concerning the power supply circuits or if a power supply unit acts unexpectedly.
We recommend contacting ZIMO service (service@zimo.at)
and/or send it to repair.
Wrongly detected overcurrent on track 1 / track 2
screen colour changes to
RED
,
STOPP & OFF screen
WOC = “Wrongfully detected” overcurrent
= current reached “wrong” OVC threshold
This notification (
“WOC”
) means that the track output was turned off because of “overcurrent” (actually
“OVC”
) although the value defined in “VOLT & AMPERE” was not reached, and also the power supply
unit does not provide too little voltage (this would be
“UND”
). If this error occurs, the reason probably
is a defect in the current limiting circuit.
Voltage error on track 1 / track 2
screen colour changes to
RED
,
STOPP & OFF screen
VTG = Wrong (usually too high) voltage on the track
= the controlling voltage measurement on the
output detected a higher value.
This notification (
“VTG”
) means that the track output discharged a wrong voltage, usually higher than
defined in “VOLT & AMPERE”, and was therefore turned off automatically. This can lead back to a de-
fect or to an external voltage. The defect is potentially dangerous for the rolling stock, especially if it
has relatively low running voltages defined (and therefore the difference to the occurring overcurrent
may be relatively high).
These screens(
“WOC”
,
“VTG”
) and otherwise (except for the texts) are exactly the same as with
“BCS”
,
“OFF”
,
“OVC”
,
“UND”.
Therefore, also the procedure to re-start, etc. is the same: Therefore,
also the procedure to re-start, etc. is the same:
Button 1
track 1
The states of track 1 or 2 (independently
or
with individual keys each) can be switched cyclically:
Button 2
track 2
WOC
(overcurrent) ->
ON
(normal operation)
BCS
(broadcast stop)
OFF
(turned off)
ON
BCS
OFF
etc.
NOTE: OVP = Overcurrent on the programming track
