Generac Power Systems MGG155 Operating Manual page 48

Troubleshooting
Abbreviation
IM-NT InteliMains New Technology - Mains supervision controller; the same controller with a different SW
configuration can work as a bus-tie synchronizer
I-RB Relay Board
IS-AIN8 Extension module with 8 AI
IS-BIN8/16 Extension module with 8 BO and 16 BI
IS-NT InteliSys New technology genset controller
IS-NT-BB InteliSys New Technology Basic Box (without display)
KWP2000 Key Word Protocol of Scania S6 unit (for engine diagnostics)
LAI Logical Analog Inputs (card in GenConfig which is used to assign source signal to controller Logical
Analog Input functions, e.g. Oil press)
LBI Logical Binary Inputs (card in GenConfig which is used to assign source signal to
controller Logical Binary Input functions, e.g. Sys Start/Stop)
LS Load Sharing - analog load sharing line to interconnect gensets on site (for island parallel or mains
parallel operation of multiple gen-sets); IG/IS/IM-NT controllers use digital Load Sharing via the CAN2
bus
LSM Load Sharing Module
LT Option for Low Temperature modification (display equipped with heating foil)
MCB Main Circuit Breaker
MGCB Master Generator Circuit Breaker (sometimes used with multiple gensets in island parallel or mains
parallel operation)
MINT Multiple application with INTernal control loops - for multiple gensets in island
parallel or mains parallel operation; Load Sharing and VAr Sharing controlled internally; PMS avail-
able
MP Mains Protection
MultlslOp Multiple Island Operation (MCB is opened, GCB's are closed)
MultParOp Multiple Parallel Operation (MCB is closed, GCB's are closed)
NPU Mains protection relay (voltage, frequency, vector shift protections)
OC Occurrence Count (number of fault occurrences transmitted in diagnostic frame
from ECU)
OfL Off load - protection type (see application manual for details)
PF Power Factor
PGN Parameter Group Number (see SAE J1939-71)
PMS Power Management System - ensures optimization of running gensets on sites with multiple gen-sets;
based on kW/kVA spinning reserve or on relative (%) load;
no-master system ensures high reliability
Reverse synchroni- Synchronisation of loaded genset to mains (MCB closing process)
sation
RTC Real Time Clock
SG Speed Governor
SHAIN SHared (virtual) Analog INput module
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Table 7 - Digital Controller Alarm Abbreviations
MGG155/210 Operating Manual
Description
35319 C