Murphy EMS-GC10 Operator's Manual
Genset Controller Unit
Model EMS -GC10
Operator’s Manual
00-02-0878
Section 75
2013-03-07
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our
specifications and designs at any time. The latest version of this manual can be found at www.fwmurphy.com.
BEFORE BEGINNING INSTALLATION OF THIS MURPHY
PRODUCT:
• Read and follow all installation instructions.
• Please contact your Murphy Master Distributor
immediately if you have any questions.
• A visual inspection of this product for damage during
shipping is recommended before installation.
• It is your responsibility to ensure that qualified
mechanical and electrical technicians install this product.
To locate your local distributor, go to
http://www.fwmurphy.com/dealer_search/
Table of Contents
About This Document ............................................................................................................... 1
General Purpose ........................................................................................................1
Intended Users ...........................................................................................................1
Address, Menu, Setting, Parameter ..........................................................................1
Warnings and Legal Information ............................................................................................. 2
Legal Information and Responsibility ......................................................................2
Disclaimer ...................................................................................................................2
Electrostatic Discharge Awareness .........................................................................2
Safety Issues ..............................................................................................................2
Factory Settings .........................................................................................................2
Warnings and Notes ..................................................................................................3
Introduction ................................................................................................................................. 4
Product Description ...................................................................................................4
Push-Buttons ..............................................................................................................5
LED Indicators ............................................................................................................6
Menu ............................................................................................................................7
Display ........................................................................................................................9
Status Line Text ....................................................................................................... 10
Running Modes ........................................................................................................ 12
Alarm and Logs ........................................................................................................ 12
Log List ..................................................................................................................... 13
Parameters—Only Available With USW ................................................................. 13
General Product Information .................................................................................................. 15
Functional Descriptions .......................................................................................... 15
Terminal
Strip
Overview
........................................................................................... 16
Measurement Systems ............................................................................................ 16
Applications .............................................................................................................. 18
Running Mode Description ...................................................................................... 20
Single-Line Diagrams .............................................................................................. 23
Flowcharts ................................................................................................................ 25
Sequences ................................................................................................................ 37
Display and Menu Structure ................................................................................................... 47
Passwords and Paramet er Access ......................................................................... 47
Engine Communication........................................................................................................... 49
Additional Functions ............................................................................................................... 50
Start Functions ......................................................................................................... 50
Mains Voltage Unbalance Detection ....................................................................... 54
Phase Sequence Error ............................................................................................. 54
Breaker Types and Feedback .................................................................................. 54
Breaker Spring Load Time ....................................................................................... 55
Alarm Inhibit ............................................................................................................. 58
Digital Mains Breaker Control ................................................................................. 62
Command Timers ..................................................................................................... 63
Running Output ........................................................................................................ 64
Idle Running ............................................................................................................. 65
Battery Test .............................................................................................................. 71
Not in Auto ................................................................................................................ 73
Fuel Pump Logic ...................................................................................................... 74
Fail Class .................................................................................................................. 75
Service Timers .......................................................................................................... 78
Wire Fail Detection ................................................................................................... 79
Digital Inputs ............................................................................................................ 80
Outputs ..................................................................................................................... 84
Multi-Inputs ............................................................................................................... 86
Text
in
Status
Line
..................................................................................................... 94
Counters ................................................................................................................... 96
M-Logic ..................................................................................................................... 96
Buzzer ....................................................................................................................... 97
USW Remote Communication ................................................................................. 98
Nominal Settings ...................................................................................................... 99
AC Voltage Scaling ................................................................................................ 100
Fan
Logic
................................................................................................................ 101
Differential Measurement ...................................................................................... 106
Protections ............................................................................................................................ 107
General ................................................................................................................... 107
Appendix I —Can Bus Engine Interface Communication ............................................... 109
Terminal Description for EMS-GC10 .................................................................... 109
Modbus Communication ....................................................................................... 109
Terminals ................................................................................................................ 109
Principle Diagram ................................................................................................... 109
Functional Description ......................................................................................................... 110
Electronic Control Module (ECM) ......................................................................... 110
Engine Types .......................................................................................................... 110
Communication System ........................................................................................ 111
EIC Unit ................................................................................................................... 111
Common for all Alarm Functions .......................................................................... 111
J1939 Measurement Tab le ..................................................................................... 111
Showing Engi ne Values in Display ....................................................................... 114
Verification of J1939 Objects ................................................................................ 115
Displaying Alarms - J1939 DM1/DM2, Scania KWP2000, Caterpillar/Perkins ... 116
Displaying Alarms - EMS-GC10 ............................................................................ 118
Control Commands Sent to the Engine ................................................................ 119
Specific Engine Type Descriptions .................................................................................... 122
About Type Descriptions ....................................................................................... 122
Caterpillar/Perkins (J1939) .................................................................................... 122
Cummins CM850-CM570 (J1939) .......................................................................... 123
Detroit Diesel DDEC (J1939) .................................................................................. 126
Deutz EMR 2 – EMR 3 (J1939) ............................................................................... 126
Generic J1939 (J1939) ........................................................................................... 127
Iveco (J1939) ........................................................................................................... 128
John Deere JDEC (1939) ........................................................................................ 129
MTU J1939 Smart Connect .................................................................................... 130
MTU ADEC (CANopen) ........................................................................................... 131
MTU MDEC Module 302/303 (MTU) ....................................................................... 134
Scania EMS (J1939) ............................................................................................... 135
Scania EMS 2 S6 (J1939) ....................................................................................... 135
Volvo Penta EMS (J1939) ....................................................................................... 138
Volvo Penta EMS 2 (J1939) .................................................................................... 139
Modbus Communication ...................................................................................................... 140
Additional Information ........................................................................................... 140
Readings ................................................................................................................. 140
Alarms ..................................................................................................................................... 147
Caterpillar/Perkins ................................................................................................. 147
Cummins
.............................................................................................................. 148
DDEC – Detroit Engines ......................................................................................... 149
EMR 2 – EMR 3 - Deutz Engines ........................................................................... 150
Generic J1939 ......................................................................................................... 151
Iveco ........................................................................................................................ 152
Mtu Smart Connect ................................................................................................ 154
MTU ADEC .............................................................................................................. 155
MTU MDEC Series - 2000/4000 - Module 302 & 303 ............................................. 157
Scania
Volvo
..................................................................................................................... 158
Penta
............................................................................................................ 160
Appendix II —M-Logic .......................................................................................................... 161
Introduction to M-Logic ......................................................................................... 161
Configuration
........................................................................................................................ 162
Starting the M-Logic .............................................................................................. 162
Basic
Functions
..................................................................................................... 164
Definitions ............................................................................................................... 167
Examples
............................................................................................................... 168
List of Events and Commands ............................................................................................ 170
About This Document
General Purpose
This document is the Operator’s Manual for Murphy’s Automatic Genset Controller, the
EMS-GC10.
The general purpose of the Inst al l ati o n Manual is to provide the information needed to
operate the unit.
WARNING: Please ma ke sure to read this document before w orking
with the EMS-GC10 controller and the Genset to be controlled.
Failure to do this could result in human injury or damage to the
equipment.
You may visit the Murphy website at http://www.fwmurphy.com/emsgc10 to download the
latest version of the configuration tool software and the EMS-GC10 Operator’s Manual part
number 00-02-0878.
You will need to purchase the TTL to USB cable (75000277) in order to use the Utility Software
(USW).
Intended Users
The document is intended for the person responsible for setup and operating the EMS-GC10
unit.
Address, Menu, S etting , Parameter
To promote consistently with the PC Configuration Tool called Utility Software (USW), this
document uses the word Parameter, where in some instances, may also be thought of as an
address, menu, or setting.
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Warnings and Legal Information
Legal Information and Responsibility
FW Murphy takes no responsibility for installation or operation of the generator set. If there is
any doubt about how to install or operate the engine/generator controlled by the EMS-GC10
unit, the company responsible for the installation or the operation of the set must be
contacted.
IMPORTANT: The EMS-GC10 unit is not to be opened by
unauthorized personnel. If this occurs, the warranty will be void.
Disclaimer
FW Murphy reserves the right to change any of the contents of this document without prior
notice.
Electrostatic Discharge Awareness
Sufficient care must be taken to protect the terminals against static discharges during the
installation. Once the unit is installed and connected, these precautions are no longer
necessary.
Safety Issues
Installing and operating the EMS-GC10 unit may imply work with dangerous currents and
voltages. Therefore, th e installation should only be carried out by authorized personnel
who understand the risks involved in working with live electrical equipment.
WARNING: Be aware of the hazardous live currents and voltages.
Do not touch any AC measurement inputs a s this could lead to
injury or death.
Factory Settings
The EMS-GC10 unit is delivered from the factory with certain factory settings. These are based
on average values and are not necessarily the correct settings for matching the
engine/generator set in question. Precautions must be taken to check the settings before
running the engine/generator set.
NOTE: When the controller unit operates for the first time after it has been
received from the factory, both mains and generator breakers alarms will
be activated to warn the user (shown as fault) , until they are connected to
the power system and reset accordingly.
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Warnings and Notes
Throughout this document, a number of notes and warnings will be presented. To ensure that
these are noticed, they will be highlighted in order to separate them from the general text.
Notes
NOTE: The notes provide general information which will be helpful for the
reader to bear in mind.
Warnings
WARNING: The warnings indicate a potentially dangerous situation
which could result in death, personal injury or damaged equipment,
if certain guidelines are not followed.
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Introduction
This Operator's Manual includes general product information, display readings, pushbutton, LED functions, alar m han dl i ng descr iptions, and presentation of the log list. This
manual is intended to help optimize the operator s daily use. On the basis of this
document, the operator will be able to carry out simple procedures such as start/stop
and control of the generator set.
As a Reference point: Please note that the "U" symbol is also used as an
indication for the voltage.
EMS-GC10 delivers field-adjustable oper ati ng par a met er s but may require further
configuration using the Utility Software. It can support both mechanical and J1939
electronic engines.
The EMS-GC10 is ideal for use with a remote modem or in a SCADA system offering
Modbus® RTU protocol on the RS485 port.
Product Description
The EMS-GC10 Genset Controller provides flexible control and monitoring for industrial
genset applications. Typical applications include backup power, power supply for
remote locations without a connection to power grid, and mobile power for remote
locations. The controller supports programmable logic, up to 40 expressions, and can
be configured for specific predefined functions unique to your application.
The EMS-GC10 supports Automat ic Mains Failure (AMF) and generator breaker
control.
The EMS-GC10 offers field-adjustable operating parameters that can be changed
through the controller or an easy to use PC configuration tool called Utility Software
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Normal display: Scrolls the display down once. Programming: Decreases
setpoint value.
Normal display: Scrolls the display up once. Programming: Increases setpoint
alarm list
Push-Buttons
value.
Resets horn relay. Extra function: Press and hold button 2 seconds to see
.
Enter menus/enter value/acknowledges alarm.
Jumps from parameter settings to display. Removes pop-up messages.
Initiates the test sequence.
Lamp test. One push will illuminate all LEDs for 3 seconds.
Manual/Block running mode selector. Press MAN twice to activate Block mode.
AUTO running mode selector.
Open breaker
Closed breaker
.
.
Stop engine (Manual, not aut o) running mode.
Start engine (Manual, not auto) running mode.
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Steady: active, acknowledged alarm(s) present.
LED Indicators
Power OK indicator.
Alarm LED: Flashing: active, non-acknowledged alarm(s) present.
`
Additional alarm indication LEDs: Flashing: active, non-acknowledged
alarm(s) where output A or B is configured to LED 1, 2, 3 or 4. Steady:
active, acknowledged alarm(s) where output A or B is configured to LED
1, 2, 3 or 4.
ON in Manual Mode. Flashing when in Block mode.
ON in AUTO Mode.
Generator breaker ON/Mains.
U/f OK, generator
Running feedback present.
Power comes from utilities/grid (Mains ok).
voltage/frequency.
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View Menu
The measured values are displayed from this view.
Used for setting up the unit, and detailed information.
Changing of parameter settings is password-protected.
This list shows active acknowledged and unacknowledged
acknowledged by pressing the ENTER button.
This menu contains input, output, M-Logic status, and data
about the unit
Menu
The Menu can be viewed without password entry.
Log Menu This menu displays the Event, Alarm, and Battery Logs.
Setup Menu
Alarm List
Service Menu
alarms. In addition, while in th is lis t the alarms can be
View Menu
The View Menu is used daily by the operator. There are up to 20 configurable display
views, with up to three configurable display lines in each view. View configuration is
done through the PC utility software (USW).
In the View Menu, var ious meas ur ed values are on the display.
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Menu Structure Diagram
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Display
The display indicates readings and alarms. Below are some examples of the display
views.
Display View Description and Notes
View Menu
The software version can be found in the Service Menu
Status of Generator P, Generator Q, Generator S, and
Run Hours
Status of Service Timer 1, Service Timer 2, and Run
Hours
Alarm Acknowledge
Press ENTER button to enter the list of active alarms
The alarm list shows the active alarms. Press ENTER
button to acknowledge alarm
Parameter Settings
Press the ENTER button to enter the Parameter
Settings
Select menu group, press ENTER button to edit
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Block
Block mode is activated
Simple Test
Full Test
Simple Test ###.#Min
Test mode activated and test timer
counting down
Full Test ###.#Min
Island Man
Genset stopped or r u n ni ng and no
other action taking place
Island Semi
Ready Island Auto
Genset stopped in Auto
Island Active
Genset running in Auto
AMF Man
Genset stopped or running and no
other action taking place (AMF mode)
AMF Semi
Ready AMF Auto
Genset stopped in Auto (AMF mode)
AMF Active
Genset running in Auto (AMF mode)
Load Takeover Man
Genset stopped or running and no
other action taking place (LTO mode)
Load Takeover Semi
Ready LTO Auto
Genset stopped in Auto (LTO mode)
LTO Active
Genset running in Auto (LTO mode)
DG Blocked For
Start
Generator stopped and active
alarm(s) on the generator
Generator running, GB open and an
alarm
Shutdown Override
The configurable input is active
The configurable input is activated,
of the blocked keys
Display View Description and Notes
Edit value with the UP and DOWN buttons and
save the value by pressing the ENTER button
NOTE: The available parameters depend on the set options. Some
parameters can only be changed using the PC utility software
(USW) for EMS-GC10.
Status Line Text
Below is a list of standard conditions with comments.
Condition Comment Note
Test mode is activated
GB On Blocked
Access Lock
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active "Trip GB"
and the operator tries to activate one
GB Trip Externally
An external trip is
log
The "Idle run" function is active. The
expired
The timer in the "Idle run"’ function is
active
Aux. Test ##.#V ####S
Battery test activated
Prepare, close, plus
delay
Start Relay On
The start relay is activated
The start relay is deactivated during
the start sequence
Mains failure and mains failure timer
expired
The timer shown is
seconds
MAINS U OK DEL
####S
Mains voltage is OK after a mains
failure
The timer shown is
the Mains OK delay
MAINS F OK DEL
####S
Mains frequency is OK after a mains
failure
The timer shown is
the Mains OK delay
When the timer runs
generator breaker
COOLING DOWN ###S
Cooling-down period is activated
Cooling-down period is activated and
infinite
Cooling down timer
is set to 0.0 s
This info is shown when cooling down
has finished
Ext. Stop Time ###S
There is no failure
this sequence
Condition Comment Note
Some external equipment has trip ped
MB Trip Externally
Idle Run
the breaker
genset will not stop until a timer has
Idle Run ###.#Min
Start Prepare The start prepare relay is activated
Start Relay Off
Mains Failure
Mains Failure In ###S
Frequency or voltage measurement is
outside the limits
logged in the event
the Mains failure
delay. Text in mains
units with time in
Hz/V OK IN ###S
Cooling Down
Genset Stopping
Ext. Start Order A planned AMF sequence is activated
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The voltage and frequency on the
genset is OK
out it is allowed to
operate the
on the mains during
In auto mode, the unit will operate automatically, and the operator cannot
initiate any sequences man uall y.
Test
The test sequence will start when the test mode is selected.
Manual means that the unit will not initiate any sequences automatically,
external signals are given.
When the block mode is selected, the unit is not able to initiate any
sequences, for example, the start sequence.
Running Modes
The unit has four different running modes and one block mode. The different running
modes are four to thre e via the display or the PC utility software.
Auto
Manual
Block
as is the case with the auto mode. It will only initiate sequences, if
NOTE: Block mode must be selected when maintenance work is
carried out on the Genset.
NOTE: The Genset will shut down if block mode is selected while
the Genset is running
NOTE: If the auto button is pressed twice, the controller will be in
the semi-auto mode. This mode is not supported, and is the same
as the manual mode. Pr ess eith er th e auto o r manual but t on onc e
to resume normal operation
Alarm and Logs
When an alarm occurs, the alarm is displayed and saved in the Alarm Log.
Press the ESC button to hide the alarm from the display.
Press the ENTER button to acknowledge the alarm.
NOTE: When you acknowledge an alarm, and the alarm condition
is no longer present, the alarm will no longer be displayed in the
Alarm Log.
Press the HORN button for 2 seconds to view the list of alarms stored in the alarm
log.
Press the UP and Down Buttons to view the list.
NOTE: The display will show one alarm at a time.
The alarm log contains both acknowledged and unacknowledged alarms provided that
they are still active (i.e. the alarm condition is still present).
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Parameter
Description
1340
Busbar voltage trip.
2774
EIC speed ramp.
4220
RMI fuel level multi input 6.
4230
RMI fuel level multi input 6.
4250
4-20ma. multi input 7.
4260
4-20ma. Multi input 7.
4350
RMI fuel level multi input 7.
4360
RMI fuel level multi input 7.
4380
4-20ma. multi input 8.
4390
4-20ma. multi input 8.
4440
RMI oil psi multi input 8.
4450
RMI oil psi multi input 8.
4460
RMI water temp. Multi input 8.
4470
RMI water temp. multi input 8.
4550
Magnetic pickup wire break.
4601
Delta analog 1, 2, 3.
5000
Relay 03.
If there are no alarms, the Alarm List (Log) will be empty.
The display example below indicates an unacknowledged alarm. Thi s means : Bus
Bar U > Settings Group 1
Log List
The log is divided into three different lists:
• Event Log – closing of breaker and starting of engine
• Alarm Log – overcurrent or high cooling water temperature
• Battery Test Log – test OK or test failed
The event log contains up to 50 events, the alarm log con tai ns up t o 30 hist or i cal
alarms and the battery test log contai ns up to 52 hist orical battery tests.
Parameters—Only A vailable With USW
Parameters need to be configured through the Utility Software (USW) and not locally
available to be configured from EMS-GC10 unit.
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Parameter
Description
5010
Relay 21.
5020
Relay 22.
5030
Relay 23.
5040
Relay 24.
5060
Relay 45.
5070
Relay 47.
6200
Shutdown override.
7000
Mains power.
7010
Daytime period.
7020
Start Generator. (peak shaving)
7030
Stop Generator. (peak s having)
7530
Internal communication ID.
8180
Mains configuration.
8190
Tie breaker.
9120
Service menu.
9180
Quick setup mains.
9190
Application broadcast.
GSM Settings
Calling phone numbers.
10390
Password language.
10400
Password log page.
10410
Password control page .
10460-10620
RMI configurable curves.
10970
Engineering units. (metric/English)
10980
Configuration multi input 6.
10990
Configuration multi input 7.
11000
Configuration multi input 8.
11010-1110
4-20ma. input scale.
12790-12940
External digital outputs
12950-12983
External module status
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General Product Information
Functional Descriptions
Standard
This chapter includes functional descriptions of standard functions as well as
illustrations of the relevant application types. Flowcharts and single-line diagrams will
be used in order to simplify the information.
The standard functions are listed in the following paragraphs.
Operation
Automatic Mains Failure (AMF)
Island operation (Island)
Load takeover (LTO)
Engine
Start/stop sequences
Run and stop coil
Multi-inputs (binary, 4-20 mA or VDO)
Digital inputs
Functions
Modes
Control
Generator Protect ion (A NSI)
Reverse power (32)
Overload (32)
Overcurrent (50/51)
Overvoltage (59)
Undervoltage (27)
Over-/underfrequency (81)
Current/voltage unbalance (60)
Busbar Protection (ANSI)
Overvoltage (59)
Undervoltage (27)
Overfrequency (81)
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Underfrequency (81)
Voltage unbalance (60)
Display
Push-buttons for start and stop
Push-buttons for breaker operations
Status texts
M-Logic
Simple logic configuration tool
Selectable input events
Selectable output comman ds
Terminal
Strip
Overview
Reference to Installation Instructions
Information about terminal strip overview and rear side controller view can be found in
the "Installation Instructions", which is located on FW Murphy website under
documentation for EM S-GC10.
Measurement Systems
EMS-GC10 unit is designed for measurement of voltages between 100 and
690Vpp AC. For further reference, the AC wiring diagrams are shown in the
Installation Instructions. In parameters 9130, 9131 the measuremen t pri nci pl e
can be changed between three-phase, single phase and split phase.
IMPORTANT: Configure EMS-GC10 to match the correct
measuring system. When there is a doubt, con tac t the
switchboard manufacturer for inf orma t ion abou t the required
adjustment.
NOTE: EMS-GC10 unit has four sets of nominal generator
settings, which can be enabled individually in the different
measurement systems.
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Parameter
Adjustment
Description
Adjust to
6004
G nom. voltage
Phase-neutral voltage of the generator
230V AC
6041
G transformer
Primary voltage of the G voltage transformer (if installed)
UNOM x √3
6042
G transformer
Secondary voltage of the G voltage transformer (if installed)
UNOM x √3
6051
BB transformer
Primary voltage of the BB voltage transf orm er (if instal led)
UNOM x √3
6052
BB transformer
Secondary voltage of the BB voltage transformer (if installed)
UNOM x √3
6053
BB nom. voltage
Phase-phase voltage of the busbar
UNOM x √3
Setting
Adjustment
Description
Adjust to
6004
G nom. voltage
Phase-phase voltage of the generator
400V AC
6041
G transformer
Primary voltage of the G voltage transformer (if installed)
UNOM
6042
G transformer
Secondary voltage of the G voltage transformer (if installed)
UNOM
6051
BB transformer
Primary voltage of the BB voltage transf orm er (if instal led)
UNOM
6052
BB transformer
Secondary voltage of the BB voltage transformer (if installed)
UNOM
6053
BB nom. voltage
Phase-phase voltage of the busbar
UNOM
Single Phase System
The single phase system consists of one phase and the neutral.
The following adjustments must be made to make the system ready for the single
phase measuring (example 230V AC):
value
NOTE: The voltage alarms refer to UNOM (230V AC).
NOTE: EMS-GC10 unit has two sets of BB transformer settings,
which can be enabled individually in this measurement system.
Split Phase System
When EMS-GC10 unit is delivered from the factory, the three-phase system is selected.
When this principle is used, all three phases must be connected to the EMS-GC10
controller unit.
The following adjustme nts must be ma de to m ak e the sy st em ready for the thre e-phase
measuring (example 400/230V AC):
value
NOTE: EMS-GC10 has two sets of BB transformer settings, which
can be enabled individually in this measurement system.
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Application
Engine Control
Automatic Mains Failure (no back sync.)
Island operation
Load takeover
Genset mode
Running mode
Auto
Semi
Test
Man
Block
Engine Controller
X X X X
Automatic Mains Failure (no back sync.)
X X X X X
Island operation
X X X X
Load takeover
X X X X X
Applications
Applications and Genset Modes
NOTE: This section about applications is to be used for reference
using the particular Gens et mo de as star ti ng poi nt. It is not sui table
for reading from beginning to end.
The unit can be used for the applications listed in the table below.
NOTE: For a general description of the available running modes,
please refer to the chapter "Running mode description".
AMF (No Back Synchronization)
Auto Mode Description:
The unit automatically starts the genset and switches to generator supply at a mains
failure after an adjustable delay time. It is possible to adjust the unit to change to genset
operation in two different ways:
1. The mains breaker will be opened at genset start-up.
2. The mains breaker will remain closed until the genset is running, and
the genset voltage and frequency is OK.
In both cases, the generator breaker will be closed when the generator voltage and
frequency is OK, and the mains breaker is open.
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When the mains returns, the unit will switch back to mains supply and cool down and
stop the genset. The switching back to mains supply is done when the adjusted "Mains
OK delay” has expired.
NOTE: For a general description of the available running modes,
please refer to the chapter "Running mode description".
Island Operation
Auto Mode Description:
The unit automatically starts the genset and closes the generator breaker at a digital
start command. When the stop command is given, the generator breaker is tripped, and
the genset will be stopped after a cooling down period. The start and stop commands
are used by activating and deactivating a digital input or with the time-dependent
start/stop commands. If the time-dependent start/stop commands are to be used, the
auto mode must also be used.
NOTE: For a general description of the available running modes,
please refer to the chapter "Running mode description".
Load Takeover
Auto Mode Description:
The purpose of the load takeover mode is to transfer the load imported from the mains
to the genset for operation on generator supply
The unit automatically starts the genset and closes the generator breaker at a digital
start command. When the stop command is given, the generator breaker is tripped, and
the genset will be stopped after a cooling-down period. The start and stop commands
are used by activating and deactivating a digital input or with the time-dependent
start/stop commands. If the time-dependent start/stop commands are to be used, then
the auto mode must also be used.
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Command
Description
Comment
Start
The start sequence is initiated and continues until the genset starts or
First start: include
Stop
The genset will be stopped. After disappearance of the running signal,
The cooling down
Close GB
The unit will close the generator breaker if the mains breaker is open
Open GB
The unit will open the generator breaker instant ly
Close MB
The unit will close the mains breaker if the generator breaker is open
Open MB
The unit opens the mains breaker instantly.
Running Mode Description
Manual Mode
The unit can be operated in manual mode (MAN). Manual means that the unit will not
initiate any sequences automatically, as is the case with the auto mode. It will only
initiate sequences, if external signals are given.
An external signal may be given in three ways:
1. Start and Stop and MAN push-buttons on the display are used
2. Digital inputs are used
3. Modbus command at service port or RS 485
NOTE: The standard EMS-GC10 is only equipped with a limited
number of digital inputs, please see "Digital inputs" in this
document for addition a l inform ati on ab out av ai l abi li ty.
The following sequences can be activated in manual mode:
the maximum number of start attempts has been reached.
the stop sequence will continue to be active in the ‘"extended stop
time" period. The genset is stopped with cooling down time.
preheat
Second start: cancel
preheat
time is cancelled if
the stop button is
activated twice.
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Test mode
The test mode function is activated by the TEST pus h-button on the display, the
Modbus, USW or by activating a digital input.
The settings for the test function are set up in parameter 7040 Test. Use the USW to
view the USW settings.
1. Timer: Period starts when U/f is ok. Engine stops when time runs out.
2. Return: When the test is completed, the unit will return to the selected
mode (manual or auto).
3. Type: Selection of one of the two types of tests: simple or full.
NOTE: If the timer is set to 0.0 min., the test sequence will be
infinite. The test will be cancelled by pushing TEST again.
NOTE: Test mode is not available in an island application
Simple Test
EMS-GC10 controller unit will go through the start seq ue nce and run the engine for the
time set in parameter 7041 without any breaker operation. This sequence is initiated by
a digital input or the TEST push-button on the front. The test will run until the timer
expires. When the timer runs out, the stop sequence including cooling down will be
carried out.
If the timer in parameter 7040 is set to 0, the test is infinite. The test will be interrupted if
the mode is changed to: manual, semi-auto, or auto.
Full T est
The full test will start the genset, open the mains breaker and close the generator
breaker. When the test timer expires or the test is cancelled by mode change, the
generator breaker is opened, the mains breaker closed, and the generator is stopped
after the cool-down time.
NOTE: To run the full test, it is required that EMS-GC10 is in AMF
or LTO mode.
NOTE: It is possible to open and close the generator breaker and
the mains breaker in manual mode.
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Block Mode
Block mode can be enabled by pressing the MAN button on the EMS-GC10 twice and
hold for 2 seconds, with M-Logic or a digital input. When block mode is selected, the
controller unit will be locke d for certain actions. This means that it cannot start the
genset or perform any breaker opera ti ons fr o m the buttons.
The purpose of the block mode is to make sure that the genset does not start for
instance during maintenance work.
WARNING: You should take care to follow OSHA equipment
lockout requirements and any other company safety
regulations, procedures, or requirements by authorities with
local jurisdiction.
NOTE: It is important to know that the input configured to block
mode is a constant signal. So, when it is ON, the unit is in a
blocked state, and when it is OFF, it returns to the mode it was in
before block mode was selected.
When EMS-GC10 unit goes into block mode, it will:
• Open GB, shut down the engine, show "BLOCK" in the display and
flash the MAN LED
• GB ON, GB OFF, MB ON, MB OFF and START buttons are locked
• Parameter 7065 set to Start Engine+Open MB: MB will switch on
every time voltage/frequency is within the limits and open when not
OK (used when the breaker is a contactor)
• Parameter 7065 set to Start Engine: MB will switch ON one time if the
voltage/frequency is within the limits and OFF otherwise. It respects
the "MB close delay" in 7082.
If block mode is selected using the display after the digital block input is activated, the
EMS-GC10 will stay in block mode after the block input is deactivated. The bl ock m ode
must now be changed using the push-buttons AUTO or MAN. The block mode can only
be changed locally by push-button or a digital input.
IMPORTANT: Before the running mode is changed, i t is
important to check that persons are clear of the genset and
that the genset is ready for ope ra t ion.
NOTE: Alarms are not influenced by block mode selection.
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WARNING: You should take care to follow OSHA equipment
lockout requirements and any other company safety
regulations, procedures, or requirement s by authorities with
local jurisdiction.
IMPORTANT: The genset will shut down if block mode is
selected while the genset is running.
Single-Line Diagrams
Application Illus tratio n
In the following, the various applications are illustrated in single-line diagrams.
Automatic Mains Failure (AMF)
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Island Operation
Load Takeover
Island Mode without breaker is possible.
NOTE: Synchronization is not supported by EMS-GC10
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