EMS98R3 User Guide
4000-0042 EMS98R3V3.3 UG R00.doc
Page 1 of 22
4/03/2005
EMS98R3
Genset Controller
User Guide
This document applies to:
Build version
3600-0053
Software Version
5000-0410
EMS
www.ems.gen.nz
The information contained in this document is copyright,
and is not to be reproduced without the written authority
of EMS ©2004
EMS98R3 User Guide
4000-0042 EMS98R3V3.3 UG R00.doc
Page 2 of 22
4/03/2005
EMS98 Genset Controller
1
Introduction
Overview
The EMS98 is a controller suitable for use with Diesel powered Gensets, which are used for standby
or auxiliary power generation. It is very configurable and suitable for single or three phase gensets.
The unit controls the starting and stopping of a genset via a manual start button, an internal auto
mains failure system, an external autostart signal or the built in scheduler. Vital operating
parameters are monitored and displayed. If abnormal operation is detected, the unit alarms and
provides genset shutdown. Control for load transfer contactors is also provided.
Monitored Parameters:
Engine Parameters
Electrical parameters
• Engine Speed
• Generator Volts and Current
• Oil Pressure
• Generator Line to Line Volts
• Coolant Temperature
• Generator Frequency
• Oil Temperature or Fuel Level (optional)
• Generator KW and KVA
• Battery Voltage
• Generator Power Factor
• Engine Hours.
• Generator KWHr
• Operating Status
• Mains Voltage
• Operating Warnings and Alarms
• Mains frequency
Front Panel Features
3100-0161
Alarm
Chg-Fail
Low Batt
LOP
HWT
F-Start
F-Stop
O
I
The front panel comprises the following major features:
• Engine gauge set
• Engine display
• Engine start and stop buttons
• Generator display and selection button
• Alarm display
EMS98R3 User Guide
4000-0042 EMS98R3V3.3 UG R00.doc
Page 3 of 22
4/03/2005
Engine Gauge Set
The engine gauge set consists of two LED based gauges showing oil pressu