Checking The Can Bus With The Diagnostic Function Of Board Dx1; Jumper Positions In The Can Bus - Sirona GALILEOS Service Manual

6 Troubleshooting
6.2 Checking the CAN bus
V700 V701
Slow flashing Slow flashing
Fast flashing Off
Fast flashing Fast flashing
Off Fast flashing
Off Off
132
6.2.1 Checking the CAN bus with the diagnostic function of
board DX1

Checking the CAN bus with the diagnostic function of board DX1

Board DX1 features a diagnostic function for diagnosing malfunctions of
the CAN bus via LEDs V700 and V701 (see wiring diagrams). The
following table indicates the operating status of the CAN bus and the
recommended error correction measures:
CAN bus operation
CAN bus OK
CAN error, no communication with
board DX7, i.e. no display of error
messages
CAN error, no physical communication
with CAN bus possible; there is
probably a short circuit in the CAN
cable or on the board of a module.
CAN error, CAN bus TTP (time trigger
protocol) disturbed by defective,
constantly transmitting board (bus-
heavy).
System did not power up (DX11)
6.2.2

Jumper positions in the CAN bus

Jumper positions in the CAN bus
The jumpers are located on board DX1 at sockets X302, X303, X306,
X307, X309, X500, and X503 (see also wiring diagrams). If a cable is
connected to the socket, the corresponding jumpers must be set to the
outer position. If no cable is plugged in, the jumpers must be set to the
inner position. If a jumper is set to the inner position without a cable
plugged in, the CAN bus is interrupted at this location. Modules located
behind this location can no longer be connected to the CAN bus and,
therefore, do not function.
Sirona Dental Systems GmbH
Service Manual GALILEOS
Error correction
Not required
● Check cabling.
● Check CAN jumpers (Jumper
positions in the CAN bus [ → 132])
● Disconnect CAN cables one after the
other (set jumpers to inner position!)
until the CAN bus functions again
(V700 and V701 flash slowly).
Replace faulty module.
● Disconnect CAN cables one after the
other (set jumpers to inner position!)
until the CAN bus functions again
(V700 and V701 flash slowly).
Replace faulty module.
Switch unit off and on again and wait until
end of power-on time.
D3437.076.01.15.02 06.2012
61 25 665 D3437