© 2015 Adolf Nissen Elektrobau GmbH + Co. KG
Construction and function
Variable Message Sign
24
3.4.5
Fault displays
Low voltage battery
The yellow LED on the right above the battery symbol signals that
the batteries of the light arrow are 80% depleted.
When using new GEL batteries with 210 Ah operating times* up to 2
hours can be reached after signalisation.
The LED also lights when the battery integrated in the radio remote
control Pro-Remote is depleted.
The remaining time can be significantly reduced for used and not
properly maintained batteries.
* operating time at 20°C
Fault on the device
In the case of all other malfunctions not related with a low voltage
supply, the red LED on the left above the Attention sign lights.
Calling up fault information
Information on all faults can be called up with the
[F1]
function key.
The first display after pressing
[F1]
indicates the component on
which the fault has occurred (e.g. "Remote control" or "Sign 1").
Further detailed information on the type of fault can be requested by
selecting with
[
]
,
[
]
and confirming with
[OK]
.
3.4.6
Maintenance
The battery of the remote control must be charged at regular intervals (see the battery symbol on the
display).
The operating time during radio operation with the integrated battery is 12 hours. As soon as the
remote control is placed on the charging station, it is charged by an automatic battery charger.
If there is a cable connection, the remote control is charged via the cable connection.
The charge status is indicated by an incremental battery symbol on the display. If the symbol is static at
100%, the battery is fully charged.
3.4.7
Error Messages
Occurring errors are transmitted directly to the remote control and displayed there on the LCD display.
WARNING!
An error in the SpeedSign SMD 750 can substantially affect public road safety and must therefore be
remedied immediately!
A current error is indicated by the red LED of the error display and the flashing information symbol
[F1]
.
In order to receive more detailed information regarding the respective error the
[F1]
key must be
pressed.
Error Message Undervoltage
:
When the voltage falls below 11,6 V the error indicator (red LED) lights in addition to the undervoltage
warning (yellow LED). Also the information symbol
[F1]
flashes on the display.
When key
[F1]
is pushed the error "undervoltage" is displayed.
When the voltage falls below 11,2 V the LED signs are deactivated in order to avoid switching errors.