Sirona ORTHOPHOS XG 3 DS, Руководство по обслуживанию

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59 38 399 D3352
D3352.076.01.13.02
07.2008
3 – 9
Tab 3 3.2 Check the CAN bus
3.2
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:
*) TTP = Time Trigger Protocol
V700 V701 Operating status of CAN bus Error correction measures
Slow flashing Slow flashing CAN bus OK Not required
Fast flashing Off CAN error, no communication with
board DX7, i.e. no display of error
messages
z
Check cabling
z
Check CAN jumper
(see section 3.2.2)
Fast flashing Fast flashing 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
z
Disconnect CAN cables succes-
sively (set jumper to inner posi-
tion!) until the CAN bus functions
again (V700 and V701 flash
slowly)
z
Replace defective module
Off Fast flashing CAN error, CAN bus TTP* disturbed
by defective, constantly transmitting
board (bus-heavy)
z
Disconnect CAN cables succes-
sively (set jumper to inner posi-
tion!) until the CAN bus functions
again (V700 and V701 flash
slowly)
z
Replace defective module
Off Off System did not power up (DX11)
z
Switch unit OFF and ON again
and wait until end of power-up
time