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B+2 deviates
B+2 deviates
If B+2 deviates, check the fuse F14 and the emergency stops SE1 and SE2. Check
If B+2 deviates, check the fuse F14 and the emergency stops SE1 and SE2. Check
the voltage for contactors K11 and K12 to ensure that the coils are not short
the voltage for contactors K11 and K12 to ensure that the coils are not short
circuited and that the f
circuited and that the freewheel diodes across the coils are intact.
reewheel diodes across the coils are intact. Check also that
Check also that
the contactors' cable connections are tight.
the contactors' cable connections are tight.
B+3 deviates
B+3 deviates
If B+3 deviates, check the fuse
If B+3 deviates, check the fuse F6 and connections from the key relay connections
F6 and connections from the key relay connections
K3.30
K3.30 to K3.87
to K3.87, if
, if the relay
the relay does
does not clos
not close, check
e, check the coil
the coil resistance
resistance should
should be
be
around 300), the freewheel diode across both relays and cable connection to ATC
around 300), the freewheel diode across both relays and cable connection to ATC
XC1.17 and XC1.27. If the
XC1.17 and XC1.27. If the relay circuit is
relay circuit is OK, check that B+
OK, check that B+ 48V puts out on
48V puts out on A
ATC
TC
XC1.17 and that the output XC4.23 draws to 0V when logging on, if not, replace
XC1.17 and that the output XC4.23 draws to 0V when logging on, if not, replace
the ATC.
the ATC.
B+4 deviates
B+4 deviates
If B+4 deviates, make a check as set out above but on F7 and K6.30, K6.87.
If B+4 deviates, make a check as set out above but on F7 and K6.30, K6.87.
B+5 deviates
B+5 deviates
If B+5 deviates, go to trouble shooting electric servo steering.
If B+5 deviates, go to trouble shooting electric servo steering.
AGND deviates
AGND deviates
If AGND
If AGND deviates, check the connections between AGND measuremen
deviates, check the connections between AGND measurement point and
t point and
A
ATC XC1.10. If AGND
TC XC1.10. If AGND is broken it gives
is broken it gives a calibration error. If AGND is
a calibration error. If AGND is not put
not put
out by ATC, change the ATC.
out by ATC, change the ATC.
B5V deviates
B5V deviates
If B5V deviates, check that the cable connections between B5V and ATC XC1.11
If B5V deviates, check that the cable connections between B5V and ATC XC1.11
are intact. Ensure that nothing loads 5V by pulling out all ATC connectors except
are intact. Ensure that nothing loads 5V by pulling out all ATC connectors except
XC9, also disconnect the CAN bus, now me
XC9, also disconnect the CAN bus, now measure whether there is 5V
asure whether there is 5V on the
on the
measurement points or XC1.11, if not change the ATC.
measurement points or XC1.11, if not change the ATC.
B12V deviates
B12V deviates
If B12V
If B12V deviates, check the connections between B12V and
deviates, check the connections between B12V and A
ATC XC3.17. If
TC XC3.17. If B12V
B12V
is broken the indicating lamps will not light.
is broken the indicating lamps will not light. Ensure that nothing loads 12V by
Ensure that nothing loads 12V by
pulling out all AT
pulling out all ATC connectors except XC9, also disconnect the CAN
C connectors except XC9, also disconnect the CAN bus, now
bus, now
check whether the ATC puts 12V out on pin XC3.17, if not change the ATC.
check whether the ATC puts 12V out on pin XC3.17, if not change the ATC.
Ω
Ω
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