Checking The Can Bus With The Diagnostic Function Of Board Dx1 - Sirona ORTHOPHOS XG 3Dready Service Manual

Tab 3
V700 V701
Slow flashing Slow flashing
Fast flashing OFF
Fast flashing Fast flashing
OFF Fast flashing
OFF OFF
59 38 399 D3352
D3352.076.01.26.02 09.2016
3.2.1 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:
Operating status of CAN bus
CAN bus OK
CAN error, no communication with
board DX7, i.e. no display of error
messages
CAN error, no physical communica-
tion 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* disturbed
by defective, constantly transmitting
board
(bus-heavy)
System did not power up (DX11)
*) TTP = Time Trigger Protocol
3.2 Check the CAN bus
Error correction measures
Not required
Check cabling
Check CAN jumper
(see Section 3.2.2)
Disconnect CAN cables succes-
sively (set jumper to inner posi-
tion!) until the CAN bus functions
again (V700 and V701 flash
slowly)
Replace defective module
Disconnect CAN cables succes-
sively (set jumper to inner posi-
tion!) until the CAN bus functions
again (V700 and V701 flash
slowly)
Replace defective module
Switch unit OFF and ON again
and wait until end of power-up
time
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