Engine Protect - ComAp IG-NT Reference Manual

Fuel solenoid
Selection of Fuel solenoid output function:
DIESEL ENGINE: In this mode of operation the output closes to energize the fuel solenoid and enable
the engine to start. The delay or advance of activation in relation to Starter output is
defined by FuelSol offset.
GAS ENGINE: In this mode of operation the output closes to open the gas valve and enable the
engine to start. The output closes only if RPM > 30 (i.e. the starter motor is engaged)
with FuelSol offset.
The output opens if there is any reason to stop the engine or in pause between repeated starts.
Hint:
In the case of gas engine, the underspeed protection cannot be blocked by the Sprinkler function.
For gas engines, it is strongly recommended to use the pick-up sensor, as non-zero RPM detection is
required during the start procedure.
FuelSol offset
This setpoint adjusts the Fuel solenoid output activation in relation to Starter output. Positive values mean
that fuel valve is opened after the Starter, negative values mean that it is open before. Negative values are
suppressed if Fuel solenoid = GAS ENGINE.
Step: 0,1 s
Range: -5,0 – 5,0 s
D+ function
DISABLED:The D+ terminal is not used.
CHRGFAIL:The D+ terminal is used for charge fail detection only.
ENABLED: The D+ terminal is used for both functions – "running engine" detection and charge fail detection.
Hint:
Expected behavior of the D+ terminal with regard to connection of the D+ alternator terminal, alternator type
and setting the D+ function setpoint:
1. If the D+ terminal is not connected, its voltage will be ~0V when the engine is not running, ~Ubat -4V
during the start and ~0V when the engine is running
2. If the D+ terminal is connected to a standard alternator D+ input, it will have ~0V when the engine is
not running, the voltage will increase from 0 to Ubat as the alternator speed increases during the
start and will have ~Ubat when the engine is running
3. There are some alternators equipped with electronic regulators, which are "self-excited" and do not
provide standard D+ terminal. They may provide other terminal ("L" or other), which is designed for
connection of a red bulb failure indication instead of D+ . However, this terminal can be "open
collector" only and it will not work with ComAp controllers as it does not provide voltage.
Bin selector 1-4
These setpoints are linked with binary outputs Bin selector X. Activity of these outputs depends on setpoint
state:
OFF: The corresponding binary output is not active.
ON: The corresponding binary output is active.
Force value possibility:Yes
The setpoints are intended for ECU control, e.g. nominal speed switching. The binary output values can be
transmitted to ECU and control particular functions.

Engine protect

Horn timeout
The maximum amount of time the Binary output Horn is closed (horn, buzzer will sound). OFF = the output
won't be activated, NO TIMEOUT = the output stays closed until the alarm has been reset.
Step: 1s
Range: OFF, 1 – 3600 s, NO TIMEOUT
Force value possibility:Yes
Inteli NT SPtM, SW Version 2.4, ©ComAp –December 2009
IGS-NT-SPtM-2.4-Reference Guide.PDF
[ DIESEL ENGINE / GAS ENGINE ]
[ s ]
[ DISABLED / CHRGFAIL / ENABLED ]
[ OFF / ON ]
[ s ] (FV)
(FV)
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