Active Power Control Modes In Sptm - ComAp IG-NT Reference Manual

Internal Import export
ProcessControl: Load ctrl PtM = IMP/EXP
Process control: IE measurement = IM3 CT INPUT
Gen-set power is controlled to keep the import load at the level given by setpoint Process control: Import
load value.
Controller measures Import/Export value via the current transformer connected to In/Im3 terminal. The value
of L3 is then multiplied by 3 to give an estimation of the actual Imp/Exp.

Active Power control modes in SPtM

Mode Function
Warming The controller limits gen-set power for
requested time or until the water
temperature reach the requested value.
After warming the gen-set goes to the
requested (e.g. Baseload) power.
Baseload Genset power is constant - set by
Baseload setpoint.
ANEXT Baseload Gen-set power is set via Analog input.
Import / Export Import/Export value is constant – I/E
power is measured by controller.
ANEXT Import/Export value is constant – I/E
Import / Export power is measured via Analog input.
Peak shaving Automatic gen-set start/stop based on
object (load) consumption.
Export limit Limits export to the mains in the
Baseload mode.
Inteli NT SPtM, SW Version 2.4, ©ComAp –December 2009
IGS-NT-SPtM-2.4-Reference Guide.PDF
Setpoints
Engine params: Warming load;
Warming temp; Max warm time
ProcessControl: Load ctrl PtM=BASELOAD;
Base load
ProcessControl: Load ctrl ANEXT Baseload;
Analog input: LdCtrlAnextBld
ProcessControl: Load ctrl PtM=IM/EX;
Import load; I/E Pm-meas = IM3 CT INPUT
ProcessControl: Load ctrl PtM=IM/EX;
Import load; I/E Pm-meas = ANALOG INPUT
Analog input: LdCtrl:I/E-Pm
ProcessControl: PeakLevelStart;
PeakLevelStop; PeakAutS/S del
ProcessControl: Export limit = ENABLE
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