056360/E
NAVITWIN IV
x
General Safety Information for Service Personnel
WARNING
Risk of electrical shock or burn
Always make sure that the power supplies for the NAVITWIN IV and
Switch-Over Unit are switched off and safeguarded against accidental
switching-on, when wiring up the system.
WARNING
Risk of electrical shock or burn
Hazardous voltage is present inside the NAVITWIN IV.
Danger of electrical shock or burn may occur when the CCFL inverter
connections are touched.
Disconnect power before opening the device.
Never touch the PCB when servicing the device without the back cover
installed and while power is applied to the board.
CAUTION
Risk of damage of electrostatic-discharge-sensitive components
The NAVITWIN IV system contains electrostatic sensitive components.
Electrostatic discharge may permanently damage components.
When servicing the NAVITWIN IV, take precautions to prevent electro-
static discharge. Avoid touching any of the electronic circuitry.
CAUTION
Risk of erroneous CAM handling
Selecting ALR for the ALARM SELECT setting of RS-422 output 2 AND 3
simultaneously, will result in erroneous CAM handling.
Newer select ALR for the ALARM SELECT setting of RS-422 output 2 AND
3 simultaneously.
Always make sure to either select ALR for the ALARM SELECT setting of
RS-422 output 2 OR RS-422 output 2, and to select OFF or PPLAA/PPLAB/
PPLAD for the remaining RS-422 output.
Note
For parallel usage of a Central Alarm Management System (CAM) and a
Central Dimming Device, a multiplexer device must be used for the
shared RS422 interface at J6.36 / J6.37 of the NAVITWIN IV.
All the central dimming input settings remain active with input baudrate
set to 4800 baud.
CAUTION
Risk of loss of parameter settings through software exchange
It cannot be guaranteed that parameter settings in the User and Setup
menus and the entries made in the Magnetic Compass Calibration table
are left intact during an exchange of the system software.
Before exchanging the flash-memory chip, IC 9, record all parameter set-
tings to be able to re-enter them manually, if required.
Содержание NAVITWIN IV
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Страница 112: ...056360 E NAVITWIN IV 8 8 Location of Parts on the Switch Over Unit PCB ...
Страница 124: ...056360 E NAVITWIN IV 10 2 Illustrated Parts List IPL Overview ...
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