Digital Channel - Furuno VR-3000 Instruction Manual

3.4 Digital channel

Digital signal is connected via Junction Box, IF-8530 (optional for VR-3000S).
Receivable signal: 10 to 32 V voltage signal or contact signal
When voltage signal is connected, connect A and B input terminals.
When Dry contact is connected, connect B and G input terminals. And be
short-circuited between the 24 and A input terminals by the use of the jumper wire.
Channel number corresponds to the label, DC00 to DC31 and DC32 to DC63, on the
DIGITAL IN terminal boards in the Junction Box.
In this menu, it is very important to enter the source name clearly in "Source" line so
that the channel is identified easily later on. Open/Closed text is modified according to
the connected sensor. For example, when Steering gear overload signal is connected,
the text in state boxes are "Normal" and "Overload." When "M/E start air low pressure
signal" is connected, "Normal" and "Low pressure" are entered into the boxes. To do so,
press Calibrate button in the Digital Channel menu.
Active/Inactive state of the sensor can be switched between "Close" (default) and
"Open" (default) in Digital Channel Monitor menu, using "Swap Active/Inactive State
values" button.
The signal being received is monitored at the lower part of the Digital Channel Monitor
menu.
Text entered in the "Channel id" line is shown on the playback
display automatically.
Fig.3.13 Digital Channel Monitor menu
IMPORTANT!
17