IGS-NT Combi, SW Version 3.0, ©ComAp – May 2013
IGS-NT-Combi-3.0 Reference Guide.PDF
Setpoint: Nominal RPM
The setpoint adjusts the nominal gen-set speed.
The nominal speed is used:
ï‚· As 100% for the overspeed protection (setpoint Overspeed)
ï‚· For current speed calculation if it is calculated from generator frequency.
See the setpoint Gear teeth.
NOTE:
The setpoints Nominal RPM and system frequency (Nominal Freq + Nom frq
offset) must correspond to each other, i.e. if the engine speed is at nominal value
then the generator frequency must be at nominal value as well.
Setpoint: ControllerMode
OFF, MAN, SEM, AUT, TEST [-]
This setpoint can be used to select the controller mode. It is equivalent to
selecting the mode by the buttons on the front panel. Currently active mode is
displayed on the controller main screen.
NOTE:
If any of the mode forcing inputs Remote OFF, Remote MAN, Remote AUT or
Remote TEST is active, then the currenly active mode can be different than the
mode selected by the setpoint (resp. panel buttons).
The GCB is opened and the engine is immediately stopped in this
mode without unloading and cooling. After that the controller is in
Not ready state and can not be started any way. The MCB is closed
permanently (MCB Opens On = GENRUN) or is open or closed
according to the mains is present or not (MCB Opens On =
MAINSFAIL).
The engine can be started and stopped manually using START and
STOP buttons (or external buttons wired to appropiate binary inputs)
in MAN mode. When the engine is running, GCB can be closed to a
dead bus or synchronizing can be started by the GCB button. Also
MCB can be closed and opened manually using the MCB button,
regardless the mains is present or not. No autostart is performed. No
reaction to the inputs Sys Start/Stop or Rem Start/Stop.
(IS-NT only) - The gen-set is started and stopped only manually
using START and STOP buttons (or external buttons wired to
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