ID–Lite-2.0 User guide, ©ComAp – January 2011                                                   15 
ID-Lite-2.0 User guide.pdf 
   
AUT mode: Engine load limitation – overview 
Functions below can reduce the engine load when is over adjusted limit.  
Two functions 1 = PI loop and 2 = Comparator with Hysteresis (CMPH) are available in this group. The 
function setup is done by corresponding setpoints in Load limit group.  Both functions can use 
different inputs from ECU (Engine Load or RPM) or from pickup (RPM) or value from Analog input. 
 
PI loop and Hysteresis comparator functions can be used for Engine Load Limitation or for any other 
control function.  
 
In table below see different operation conditions. 
 
Condition  Analog output 
LoadLimitAnOut 
Binary output 
Load switch 
OFF mode  =0  =0 
MAN mode  In operation  In operation 
AUT mode  In operation  In operation 
Running  In operation  In operation 
Stop = Not Running  In operation  In operation 
Sd protection  Bias   
LBI L Reg Disable = 1  Bias   
Functions 1 and 2 overview 
ECU
J1939
CAN
LoadLimit
AnOut
0-5V/20mA
ENGINE
Engine load
Hydr.
Valve
Percent Load
or RPM
PI
ID-Lite
+  I/O
Proportional
L Request1
L Request2
L Req Ramp
Up Limit
Dn Limit
Bias
LBI L Request2
LBI L Reg Disable
AIN
Up Limit
Down Limit
LoadSwitch
CMPH
LBO
On / Off
0 / 1
RPM Pick-up
RPM
AIN
1
2
 
Functions 1 and 2 I/O 
LBI                       Active input: