EElleeccttrriiccaal l ssyysstteemm 1100..5577
MMeennuu ttrreeee AATTCC AATTLLEETT SSEERRVVIICCEE MMAANNUUAALL
B+2 deviatesB+2 deviates
If B+2 deviates, check the fuse F14 and the emergency stops SE1 and SE2. CheckIf 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 shortthe voltage for contactors K11 and K12 to ensure that the coils are not short
circuited and that the fcircuited and that the freewheel diodes across the coils are intact. reewheel diodes across the coils are intact. Check also thatCheck also that
the contactors' cable connections are tight.the contactors' cable connections are tight.
B+3 deviatesB+3 deviates
If B+3 deviates, check the fuse If B+3 deviates, check the fuse F6 and connections from the key relay connectionsF6 and connections from the key relay connections
K3.30 K3.30 to K3.87to K3.87, if , if the relay the relay does does not closnot close, check e, check the coil the coil resistance resistance should should bebe
around 300), the freewheel diode across both relays and cable connection to ATCaround 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 AATCTC
XC1.17 and that the output XC4.23 draws to 0V when logging on, if not, replaceXC1.17 and that the output XC4.23 draws to 0V when logging on, if not, replace
the ATC.the ATC.
B+4 deviatesB+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 deviatesB+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 deviatesAGND deviates
If AGND If AGND deviates, check the connections between AGND measuremendeviates, check the connections between AGND measurement point andt point and
AATC 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 putnot put
out by ATC, change the ATC.out by ATC, change the ATC.
B5V deviatesB5V deviates
If B5V deviates, check that the cable connections between B5V and ATC XC1.11If 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 exceptare intact. Ensure that nothing loads 5V by pulling out all ATC connectors except
XC9, also disconnect the CAN bus, now meXC9, also disconnect the CAN bus, now measure whether there is 5V asure whether there is 5V on theon the
measurement points or XC1.11, if not change the ATC.measurement points or XC1.11, if not change the ATC.
B12V deviatesB12V deviates
If B12V If B12V deviates, check the connections between B12V and deviates, check the connections between B12V and AATC XC3.17. If TC XC3.17. If B12VB12V
is broken the indicating lamps will not light. is broken the indicating lamps will not light. Ensure that nothing loads 12V byEnsure that nothing loads 12V by
pulling out all ATpulling out all ATC connectors except XC9, also disconnect the CAN C connectors except XC9, also disconnect the CAN bus, nowbus, 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.
ΩΩ
To Next Page
Loading...