Inteli NT MINT, SW Version 2.6, ©ComAp – November 2011
IGS-NT-MINT-2.6-Reference Guide.PDF
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Input is inverted (= normally closed) in default configuration to achieve maximum security (broken wire).
Nominal speed
When this input is activate, the controller state is forced from Idle state to Running state, during the start of
the engine. This action is allowed only 5 seconds after the starter is disangaged ( = 5 seconds after
beginning of Idle time). This 5 seconds delay is caused by the fact, that 5 seconds after starter
disangagement, the Underspeed protection is not evaluated ( possible RPM swing).
So even if the LBI: Nominal speed is active all the time, the controller will be forced into the Running state 5
seconds after starter is disangaged.
This binary input is not working in Cooling state, the controller is not forced back to the running state neither
when Cooling speed = Nominal nor Idle.
Hint:
Use this input if you want to shorten the start-up procedure in an AMF situation.
PrestartBypass
If the input is closd, the controller bypasses the
Prestart time
and activates the Starter output immediately.
Hint:
Use this input to bypass the pre-glow / prelubrication time in the case that the engine has run a short time
before.
Oil press
Behavior for Inverted = Open to activate configuration:
Binary input must be closed when engine is not running and opened when it is running. "Sd Oil press B" is
activated when input is opened on not running engine (“still engine” condition) or when stays closed for time
period set by
Engine protect
:
RunOnlyBlkDel1
after engine start. "Sd Oil press B" protection is not active
when input is not configured.
Sd override
If the input is closed, all 2
nd
level protections are disabled to allow engine run in an emergency situation, e.g.
sprinkler devices power supply.
All protections are shown in Alarmlist and recorded into History, but the controller doesn’t stop the engine
due to their occurence. If the input is deactivated and some protections are still active or not yet reset, the
controller starts to take these protections into account and consequently stops the engine.
Hint:
All 2
nd
level protections are locked out, except of:
- Emergency stop
- Overspeed
- Underspeed (only if
Fuel solenoid
= GAS ENGINE)
Emerg. manual
This input is designed to allow the gen-set to be controlled externally, not by the controller.
This feature is especially designed for marine gen-sets, which are supposed to be started manually as the
controller has no power supply before the gen-set is started. It may be also useful in case of testing the gen-
set or in case of a failure, which does not allow the gen-set to be controlled by the controller, but the gen-set
itself is stays operational.
The controller behaves following way:
- Shows the text EmergMan in the engine status on the main screen.
- Stops all functions regarding the gen-set control, deactivates all outputs related to it.
- Stop Fail alarm is not beeing evaluated and stop solenoid is not activated if nonzero speed is detected.
- Voltage, current, power and other electric measurements are active.
- When the input is deactivated, the controller takes control over the gen-set according to the situation in
which the gen-set was in the moment of deactivation. I.e. the gen-set remains running loaded if it was
running and GCB was closed in the moment the input was deactivated.
Hint:
For successful recovery from a running state when the input is deactivated it is recommended to use pulse-
type control outputs instead of continous-type. E.g. Stop Solenoid for fuel supply control and GCB ON coil,
GCB OFF coil for breaker control.
