2122.6-0000010 OM
87
SCR parameters are set forth on four pages. By pressing button 2 (figure 2.27.4) the
pages with SCR parameters are turning:
- first page – clauses 18, 19, 23 of table 2.9.1;
- second page – clauses 20, 21, 24 of table 2.9.1;
- third page – clauses 22, 25 of table 2.9.1;
- fourth page – warning of torque limiting;
Clauses 17, 18, 19 of table 2.9.1 are available for look-up in mode of engine parame-
ters displaying.
Parameter “SCR status“(clause 25 of table 2.9.1), shown on figure 2.27.5, can have the
following conditions:
-
Dormant (sleep mode) – (is displayed after switching on of the instruments before
engine start and also at the running engine before exhaust gages reach the tem-
perature above 200 º
С
, necessary for warming up of neutralizer catalytic coating);
-
Preparing dosing readiness (is displayed after engine start, informs about SCR
actions before dosing – AdBlue reagent warming-up in cold season, pumping of Ad-
Blue reagent feeding system etc.);
-
Normal dosing operation – normal dosing;
-
Error – (indicates, that in engine operation or in SCR system operation there are
faults, to look up the fault it is necessary to press button 4 (figure 2.27.4);
-
System error pending – the system is waiting for error elimination.
Figure 2.27.5 – Parameter “SCR system status”
If there are faults or errors in SCR, on fourth page of SCR parameters (figure 2.30.6)
there is displayed a status of torque limiting and time remaining until torque limiting.
Figure 2.27.6 – Fourth page of SCR system parameters
When errors (faults) are detected in SCR system, time counters will turn on before
activation of engine torque limiting (easy limitation – 25% and heavy limitation -50%),
during this time the present faults shall be eliminated, if after this time the faults are not
eliminated, the engine torque limiting is activated, the following active errors (faults) ap-
pears in this case:
-SPN 520195, FMI 14 – heavy engine torque limitation by 50%;
-SPN 520196, FMI 14 – easy engine torque limitation by 25 %.
SCR system status
Error code
Time remaining to easy
torque limiting (25%)
Time remaining to heavy
torque limiting (50%)
Current status
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