DKG-319 User Manual V-27
(14.04.2011)
Tel:
+90-216-466 84 60
Fax: +90-216 364 65 65
datakom@datakom.com.tr
http://www.datakom.com.tr
DKG
-319
MANUAL AND REMOTE START
UNIT
FEATURES
True RMS measurements
Engine control
Generator protection
Built in alarms and warnings
Dual genset mutual standby operation
Load shedding, dummy load
Gas engine support
Engine idle speed control
3 phase genset voltage inputs
3 phase genset CT inputs
Engine oil pressure measurement
Engine coolant temperature measurement
Fuel level measurement
Genset active power measurement
Genset power factor measurement
Engine rpm display
Periodic maintenance request indicator
Daily / weekly / monthly exerciser
Engine hours counter
Event logging with date-time stamp and complete
measurement values
Stores last 100 events
Statistical counters
Battery backed-up real time clock
Weekly operation schedule programs
3 level password protection
Programmable parameters
All parameters field adjustable
Return to factory settings enabled
RS-232 serial port
Firmware downloadable from serial port
Free MS-Windows Remote monitoring SW:
-local and modem connection
-monitoring, download of parameters
-networking via modems
GSM and PSTN modem support
GSM-SMS sending in case of alarm
Modem call in case of alarm
MODBUS communication
128x64 graphic LCD display
Triple language support
Customer logo display capability
Magnetic pickup input
Configurable analogue inputs: 3
Configurable digital inputs: 7
Configurable digital outputs: 2
Total digital outputs: 4
Output expansion capability
Remote Start operation available
Engine Idle speed control
Survives cranking dropouts
Sealed front panel
Plug-in connection system for easy replacement
Dimensions (165x125x48mm)
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TABLE OF CONTENTS
Section
1. INSTALLATION
1.1. Introduction to the Control Panel
1.2. Mounting the Unit
1.3. Wiring the Unit
2. INPUTS AND OUTPUTS
3. DISPLAYS
3.1. Led Displays
3.2. Language Selection
3.3. Digital Displays
4. ALARMS AND WARNINGS
5. MODES OF OPERATION
6. OTHER FEATURES
6.1. Remote start operation
6.2. Sender type selection
6.3. Engine heating operation
6.4. Engine Idle Speed Operation
6.5. Engine Block Heater
6.6. Fuel Pump Control
6.7. Mains Simulation (Disable Start)
6.8. Delayed Mains Simulation, Battery Charging
6.9. Dual Genset Mutual Standby Operation
6.10. Service Request Display
6.11. Engine Hours Meter
6.12. Date-Time Display
6.13. Display of Software Version
6.14. Modem connection
6.15. SMS message sending
6.16. Remote Monitoring and Programming
6.17. External Control of the Unit
6.18. Automatic Exerciser
6.19. Resuming to factory set parameters
6.20. Gas engine fuel solenoid control
6.21. Load Shedding / Dummy Load
6.22. Fuel Theft / Fuelling Messages
6.23. Firmware Update
6.24. Engine Control Mode
6.25. Dual Voltage and Frequency
6.26. Single Phase Operation
7. -
8. MODBUS COMMUNICATION
9. WEEKLY OPERATION SCHEDULE
10. EVENT LOGGING
11. STATISTICAL COUNTERS
12. MAINTENANCE
13. PROGRAMMING
14. TROUBLESHOOTING
15. DECLARATION OF CONFORMITY
16. TECHNICAL SPECIFICATIONS
17. CONNECTION DIAGRAM
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1. INSTALLATION
1.1 Introduction to the Control Panel
The unit is a control and protection panel used in gensets. It shows the measured values on its
displays. The unit is designed to provide user friendliness for both the installer and the user.
Programming is usually unnecessary, as the factory settings have been carefully selected to fit most
applications. However programmable parameters allow the complete control over the generating set.
Programmed parameters are stored in a Non Volatile Memory and thus all information is retained even
in the event of complete loss of power.
The measured parameters are:
Gen voltage phase L1 to neutral
Gen voltage phase L2 to neutral
Gen voltage phase L3 to neutral
Gen voltage phase L1-L2
Gen voltage phase L2-L3
Gen voltage phase L3-L1
Gen current phase L1
Gen current phase L2
Gen current phase L3
Gen frequency
Engine speed (rpm)
Gen KW phase L1
Gen KW phase L2
Gen KW phase L3
Gen total KW
Gen pf phase L1
Gen pf phase L2
Gen pf phase L3
Gen total pf
Battery voltage,
Coolant temperature
Oil pressure
Fuel level
Gen frequency
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1.2 Mounting the Unit
The unit is designed for panel mounting. The user should not be able to access parts of the
unit other than the front panel.
Mount the unit on a flat, vertical surface. Before mounting, remove the mounting brackets and
connectors from the unit, then pass the unit through the mounting opening. The unit will be maintained in
its position by the mounting brackets spring.
Engine body must be grounded for correct operation of
the unit, otherwise incorrect voltage and frequency
measurements may occur.
The output of the current transformers shall be 5 Amperes. The input current rating of the current
transformers may be selected as needed (between 10/5 and 9000/5 amps). Current transformer outputs
shall be connected by separate cable pairs from each transformer, to related inputs. Never use common
terminals or grounding. The power rating of the transformer should be at least 5 VA. It is recommended to
use 1% precision transformers.
If analogue senders (e.g. temperature, oil pressure or fuel level) are connected to the unit, it is not
possible to use auxiliary displays, otherwise the unit may be damaged. If temperature or oil pressure or
fuel level displays are already present on the generator control panel, do not connect the senders to the
unit. The unit is factory programmed for VDO type senders. However different types of senders are
selectable via programming menu. Please check the programming section.
The programmable digital inputs are compatible with both ‘normally open’ and ‘normally
closed’ contacts, switching either to BAT- or BAT+.
The charge alternator connection terminal provides also the excitation current, thus it is not
necessary to use an external charge lamp.
1.3 Wiring the Unit
WARNING: THE UNIT IS NOT FUSED.
Use external fuses for Mains phases: L1,L2,L3,
Generator phase: L1,L2,L3, Battery positive: BAT(+).
Install the fuses as nearly as possible to the unit in a
place easily accessible for the user.
The fuse rating should be 6 Amps.
WARNING: ELECTRICITY CAN KILL
ALWAYS disconnect the power BEFORE connecting the unit.
1) ALWAYS remove the plug connectors when inserting wires with a screwdriver.
2) An appropriate and readily accessible set of disconnection devices (e.g.
automatic fuses) MUST be provided as part of the installation.
3) The building mains supply MUST incorporate appropriate short-circuit backup
protection (e.g. a fuse or circuit breaker) of High Breaking Capacity (HBC, at
least 1500A).
4) Use cables of adequate current carrying capacity (at least 0.75mm2) and
temperature range.
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2. INPUTS AND OUTPUTS
RS-232 SERIAL PORT: This connector provides serial data input and output for various purposes like
remote monitoring and remote programming.
EXTENSION CONNECTOR: This connector is intended for the connection to output extension modules.
The optional relay extension module provides 8 programmable 16A relay outputs. The unit allows the use
of up to 2 I/O extension modules.
Term Function Technical data Description
1 2 GEN-L1
Generator phase
inputs, 0-300V-AC
Connect the generator phases to these inputs.
The generator phase voltages upper and
lower limits are programmable.
3 GEN-L2
4 GEN-L3
5 GENERATOR NEUTRAL
Input, 0-300V-AC
Neutral terminal for the generator phases.
6 7 8 -
9 10 -
11 GROUND
O VDC Power supply negative connection.
12 BATTERY POSITIVE
+12 or 24VDC The positive terminal of the DC Supply shall
be connected to this terminal. The unit
operates on both 12V and 24V battery
systems.
13 FUEL LEVEL SENDER
Input, 0-5000 ohms Analogue fuel level sender connection. Do not
connect the sender to other devices. The input
has programmable ohm value.
14 OIL PRESSURE SENDER
Input, 0-5000 ohms Analogue oil pressure sender connection. Do
not connect the sender to other devices. The
input has programmable characteristics and
connects to any kind of sender.
15 COOLANT TEMP. SENDER
Input, 0-5000 ohms Analogue high temperature sender
connection. Do not connect the sender to
other devices. The input has programmable
characteristics and connects to any kind of
sender.
16 CHARGE
Input and output Connect the charge alternator’s D+ terminal to
this terminal. This terminal will supply the
excitation current and measure the voltage of
the charge alternator.
17 RELAY-2 (HORN RELAY)
Output 1A/28VDC This relay has programmable function,
selectable from a list.
18 RELAY-1 (STOP RELAY)
Output 1A/28VDC This relay has programmable function,
selectable from a list.
19 START RELAY
Output 1A/28VDC This relay controls the engine cranking.
20 FUEL RELAY
Output 1A/28VDC This relay is used for fuel solenoid control. It is
internally connected to terminal 16 for
supplying the charge alternator’s excitation
current.
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Term Function
Technical data Description
21 EMERGENCY STOP
Digital inputs These inputs have programmable
characteristics selected via the program
menu. Each input may be driven by a
‘normally closed’ or ‘normally open’ contact,
switching either battery+ or battery-. The effect
of the switch is also selectable from a list. See
PROGRAMMING section for more details.
22 SPARE-2
23 PROGRAM LOCK
24 SPARE-1
25 COOLANT LEVEL
26 HIGH TEMP
27 LOW OIL PRESSURE
28 RECTIFIER FAIL
29 CURR_1+
Current transformer
inputs, 5A-AC
Connect the generator current transformer
terminals to these inputs. Do not connect the
same current transformer to other instruments
otherwise a unit fault will occur. Connect each
terminal of the transformer to the unit’s related
terminal. Do not use common terminals. Do
not use grounding. Correct polarity of
connection is vital. If the measured power is
negative, then change the polarity of each 3
current transformers. The rating of the
transformers should be the same for each of
the 3 phases. The secondary winding rating
shall be 5 Amperes. (For ex. 200/5 Amps).
30 CURR_1-
31 CURR_2+
32 CURR_2-
33 CURR_3+
34 CURR_3-
35 36 MAGNETIC PICKUP
Inputs, 1-30V
0-8KHz
Connect the magnetic pickup signal to these
inputs.
37 MAGNETIC PICKUP
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3. DISPLAYS
3.1 Led Displays
The unit has 8 LEDs, divided in 3 groups:
-Group_1: Operating mode: This group indicates the genset function.
-Group_2: Mimic diagram: This group indicates the current status of the mains and genset
voltages and contactors.
-Group_3: Warnings and alarms: This group indicates the existence of abnormal conditions
encountered during operation.
Function Color Description
MAINS ON
Green The LED will turn on when all 3 mains phase voltages
are within the limits.
MAINS OFF
Red The LED will turn on when at least one of the mains
phase voltages is outside limits.
LOAD MAINS
Green
It turns on when the mains contactor is activated.
LOAD GENERATOR
Yellow
It turns on when the generator contactor is activated.
GENERATOR
Yellow The LED will flash when the engine is running. It will
turn on steadily when all 3 generator phase voltages
are within the programmed limits.
TEST
Yellow It turns on when the related operation mode is
selected. One of these LEDs is always on and
indicates which operation mode is selected.
If the operation of the genset is disabled by the
weekly operation schedule, then the AUTO led will
flash.
OFF
Yellow
AUTO
Green
ALARM
Red If a fault condition resulting to the engine shutdown
has occurred, the alarm led turns on steadily. If a
loaddump condition occurs, this led will flash. Alarms
work on a first occurring basis. The occurrence of a
fault will disable other faults of lower or equal priority.
WARNING
Red If a warning condition has occurred, this led turns on
steadily. The warnings work on a first occurring basis.
The occurrence of a warning will disable other
warnings, however shutdown and loaddump alarms
are still allowed.
SERVICE REQUEST
Red Engine periodic maintenance request indicator. It
turns on when the preset engine hours or time
duration after previous service has elapsed.
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3.2 Language Selection
The unit is able to display information in 3 languages. Language selection is made through
program parameter CONTROLLER CONFIGURATION > LANGUAGE SELECTION. Below selections
are available:
0: English language
1: Turkish language
2: Chinese language
3: ask selection at power-up
If language is set to 3, below screen will come at power on:
Left / Up / Down arrow pushbuttons will select the screen language. The language will be asked
everytime power is turned on.
With selections of 0,1,2 this screen will not appear and the selected language is enabled.
3.3 Digital Display
The unit has a graphical 128x64 pixel LCD display. It shows:
-Measured parameters,
-The company logo,
-The alarm list,
-Software version and date-time information,
-Statistical counters,
-Event records,
-Program parameters.
Navigation between different screens s made with the ◄MENU and MENU► buttons. Each
depression of the MENU► button switches the display to the next screen. Each depression of the
◄
MENU button switches the display to the previous screen.
During operation, the unit will switch automatically between different screens, displaying
always the most important parameters for the current operating status.
If an alarm or warning occurs during operation, in other then programming mode, the display
will automatically switch to ALARM LIST position. The ◄MENU or MENU► buttons will not function.
To enable display navigation and mute the internal buzzer, press ALARM MUTE button first. If there is
more than one alarm, the next alarm is displayed by pressing the ▼ button. Thus all existing alarms
can be scanned. ‘END OF ALARM LIST’ will be displayed when there is no more alarm to display.
The display has a backlight illumination feature. The backlight turns on with the depression
of any button or when the genset runs. It turns off after 4 hours to allow power economy.
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Scre
en Description
Contents
1
Genset parameters
(phase to neutral)
Genset status
Genset Current L1, Genset Frequency
Genset Current L2, Genset Active Power (KW)
Genset Current L3, Genset Volts L1
2
Genset parameters
(phase to phase)
Genset status
Genset Current L1, Genset Frequency
Genset Current L2, Genset Active Power (KW)
Genset Current L3, Genset Volts L1-L2
3
Engine parameters
Genset status
Oil Pressure, Engine rpm
Coolant Temperature, Battery Voltage
Fuel Level,
4
Complete Genset
parameters
(phase to neutral)
Genset status
Genset Volts L1, Genset Volts L2, Genset Volts L3
Genset Curr
ent L1, Genset Current L2, Genset Current L3,
Genset Frequency, Oil Pressure
Genset Active Power (KW), Coolant Temperature
Genset power factor, Fuel Level
Engine rpm, Battery Voltage
5
Complete Genset
parameters
(phase to phase)
Genset status
Genset Volts L1-L2, Genset Volts L2-L3, Genset Volts L3-L1
Genset Current L1, Genset Current L2, Genset Current L3
Genset Frequency, Oil Pressure
Genset Active Power (KW), Coolant Temperature
Genset power factor, Fuel Level
Engine rpm, Battery Voltage
6
Graphical Genset
parameters
(phase to neutral)
Genset status
Genset Current L1
Genset Volts L1
Genset Active Power (%), Genset Frequency
Oil Pressure
Coolant Temperature
Fuel Level
7
Graphical Genset
parameters
(phase to phase)
Genset status
Genset Current L1
Genset Volts L1-L2
Genset Active Power (%), Genset Frequency
Oil Pressure
Coolant Temperature
Fuel Level
8
Genset Phase Power
parameters
Genset status
Genset Phase L1 : Active Power(KW) / Power Factor
Genset Phase L2 : Active Power(KW) / Power Factor
Genset Phase L3 : Active Power(KW) / Power Factor
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Screen
Description
Contents
9
Company Logo
10
Alarm List
If no alarm exists, ‘END OF ALARM LIST’ will be displayed.
Existing alarms, load_dumps, warnings will be displayed as
one screen for each entry. Switching to the next entry will be
made with the ▼ button.
11
Date-Time,
Software Version
Date and time.
Operating software version.
12
Statistical Counters 1 / 3 Engine Hours Run
Total Genset Active Power (KW-h)
13
Statistical Counters 2/ 3 Engine Hours to Service
Time to Service
14
Statistical Counters 3 / 3 Total Engine Cranks
Total Engine Runs
15
Event Records
The unit provides information about last
100
events, starting
from the most recent one.
Please review chapter 10 for detailed information about event
logging.
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4. ALARMS AND WARNINGS
Alarms indicate an abnormal situation in the generating set are divided into 3 priority levels:
1- ALARMS: These are the most important fault conditions and cause:
- The ALARM led to be on steadily,
- The genset contactor to be released immediately,
- The engine to be stopped immediately,
- The Horn, Alarm, Alarm+Load_dump and Alarm+Load_dump+Warning digital
outputs to operate, (if selected via programming menu)
2- LOAD_DUMPS: These fault conditions cause:
- The ALARM led to flash,
- The genset contactor to be released immediately,
- The engine to be stopped after Cooldown period,
- The Horn, Alarm+Load_dump and Alarm+Load_dump+Warning digital outputs to
operate, (if selected via programming menu)
3- WARNINGS: These conditions cause:
- The WARNING led to be on steadily,
- The Horn and Alarm+Load_dump+Warning digital outputs to operate, (if selected
via programming menu)
If the ALARM MUTE button is pressed, the Horn output will be deactivated; however the
existing alarms will persist and disable the operation of the genset.
Alarms operate in a first occurring basis:
-If an alarm is present, following alarms, load_dumps and warnings will not be accepted,
-If a load_dump is present, following load_dumps and warnings will not be accepted,
-If a warning is present, following warnings will not be accepted.
Alarms may be of LATCHING type following programming. For latching alarms, even if the alarm
condition is removed, the alarms will stay on and disable the operation of the genset. The existing alarms
may be canceled by pressing one of the operating mode buttons (LOAD TEST / TEST / OFF / AUTO).
Most of the alarms have programmable trip levels. See the programming chapter for adjustable
alarm limits.
LOW OIL PRESSURE: Set if a signal is detected at the Low Oil Pressure Switch input or the oil
pressure value measured from the sender is below the programmed limit. Warning and alarm limits are
separately programmable for the oil pressure sender input. This fault will be monitored with Holdoff
Timer delay after the engine is running. Also if the oil pressure switch is open at the beginning of a start
attempt, then the engine will not be started and “Oil Pressure Exists!” information is displayed. When
the oil pressure switch closes, normal operation will be resumed.
HIGH TEMPERATURE: Set if a signal is detected at the High Temperature Switch input or the coolant
temperature value measured from the sender is above the programmed limit. Warning and alarm limits
are separately programmable for the temperature sender input.
LOW TEMPERATURE (warning) : Set if the coolant temperature value measured from the sender is
blow the Engine Heating Temperature limit.
LOW FUEL: Set if a signal is detected at the low fuel level input or the the fuel level measured from the
sender is below the programmed limit. Warning and alarm limits are separately programmable for the
fuel level sender input.
RECTIFIER FAIL: Set if a signal is detected at the rectifier fail input. This input is only monitored when
mains voltages are present.
EMERGENCY STOP: Set if a signal is detected at the emergency stop input.
SPARE-1 / SPARE-2: Set if a signal is detected from the related spare fault input.
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LOW SPEED / HIGH SPEED: Set if the generator frequency is outside programmed limits. These faults
will be monitored with Holdoff Timer delay after the engine is running. Low and high limits for warning
and alarm are separately programmable. Another high frequency shutdown limit which is 12% above the
high limit is always monitored and stops the engine immediately.
START FAIL (alarm): Set if the engine is not running after programmed number of start attempts.
STOP FAIL (warning): Set if the engine has not stopped before the expiration of the Stop Timer.
OVERLOAD (load_dump): Set if at least one of the genset phase currents goes over the Overcurrent
Limit for Overload Timer. If currents goes below the limit before expiration of the timer then no alarm will
be set.
EXCESS POWER (load_dump): Set if the genset power (KW) supplied to the load goes over the
Excess Power limit for Overload Timer. If the power goes below the limit before expiration of the timer
then no alarm will be set.
GENSET LOW VOLTAGE: Set if any of the generator phase voltages goes outside programmed limits
for Overload Timer. This fault will be monitored with holdoff timer delay after the engine is running.
GENSET HIGH VOLTAGE: Set if any of the generator phase voltages goes outside programmed limits
for Overload Timer. This fault will be monitored with holdoff timer delay after the engine is running.
LOW BATTERY VOLTAGE (warning): Set if the battery voltage goes below the programmed limit.
During engine cranking this fault is not monitored.
HIGH BATTERY VOLTAGE: Set if the battery voltage goes above programmed limits. Both warning and
alarm levels for high battery voltage are programmable.
CHARGE: Set if a charge alternator failure (or broken belt) occurs. This fault condition may result to a
warning or alarm following programming.
MAINS PHASE ORDER FAIL (warning): Set if the mains phase order checking is enabled, mains
phases are present and mains phase order is reversed. This fault prevents the Mains Contactor to close.
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5. MODES OF OPERATION
The modes of operation are selected by pushing the front panel keys. Changing the operation
mode while the genset is running will result into a behavior suitable for the new operating mode. For
example, if the AUTO mode is selected when genset is running at TEST mode, if the REMOTE START
signal is not present then the genset will stop.
OFF: If this mode is selected the engine will be stopped immediately.
AUTO: It is used for the automatic genset operation. If the REMOTE START signal arrives, the engine will
be started for programmed times after the preheat timer. When the engine runs, the crank relay will be
immediately deactivated. The engine will run without load during engine heating period. After this, if
alternator phase voltages and frequency are within limits, then the unit will wait for the generator contactor
period and the generator contactor will be energized.
Any of the spare digital outputs can be programmed as the generator contactor signal.
When the REMOTE START signal goes off, the engine will continue to run for the mains waiting period.
At the end of this period the generator contactor is deactivated. If a cooldown period is given, the
generator will continue to run during cooldown period. At the end of the period, the fuel solenoid will be
de-energized and the diesel will stop. The unit will be ready for the next REMOTE START signal.
If the operation of the genset is disabled by the WEEKLY SCHEDULE,
then the AUTO led will flash, and the genset operates as in the OFF
mode.
TEST: It is used to run the genset when the REMOTE START signal is off, or keep the generator running
in the emergency backup mode. The operation of the generator is similar to the AUTO mode. If the
REMOTE START signal arrives, the generator contactor will be activated. If the REMOTE START signal
goes off, the generator contactor will release, but the engine will run until another mode is selected. To
stop the engine, select AUTO or OFF mode.
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6. OTHER FEATURES
6.1 Remote Start Operation
The unit offers the possibility of REMOTE START mode of operation. Any digital input may be
assigned as Remote Start Input using Input Function Select program parameters.
The REMOTE START signal may be a NO or NC contact, switching to either battery positive or
battery negative. These selections are made using programming menu.
It is also necessary to set the ACTION program parameter of the related input to 3 in order to
prevent any alarm from this input.
In this mode the mains phases are not monitored. If the REMOTE START signal is present
then the mains will be supposed to fail, inversely if the REMOTE START signal is absent, then mains
voltages will be supposed to be present. The front panels mimic diagram’s mains LEDs will reflect the
status of the REMOTE START input.
6.2 Sender type Selection
The unit has the ability to adapt to any type of oil pressure and temperature senders. The
commonly used standard sender characteristics are recorded in memory and selectable from a list.
However non standard senders may also be used by entering their characteristics to the table.
Oil Pressure Sender Type Selection:
Selectable sender types are:
0: Sender characteristics are defined in Sender Characteristics table.
1: VDO 0-7 bars (10-180 ohms)
2: VDO 0-10 bars (10-180 ohms)
3: DATCON 0-7 bars (240-33 ohms)
4: DATCON 0-10 bars (240-33 ohms)
5: DATCON 0-7 bars (0-90 ohms)
6: DATCON 0-10 bars (0-90 ohms)
7: DATCON 0-7 bars (75-10 ohms)
Temperature Sender Selection:
Selectable sender types are:
0: Sender characteristics are defined in Sender Characteristics table.
1: VDO
2: DATCON DAH type
3: DATCON DAL type
Fuel Level Sender Selection:
The Fuel Level Sender Ohms is also programmable.
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6.3 Engine Heating Operation
Especially on engines without a body heater, or with a failing one, it may be desired that the
genset should not take the load before reaching a suitable temperature. The unit offers 2 different
ways of engine heating.
1. Timer controlled heating:
This operation mode is selected when the Engine Heating Method parameter is set to 0. In this
mode, the engine will run during parameter Engine Heating Timer, and then the generator contactor
will be activated.
2. Timer and temperature controlled heating:
This operation mode is selected when the Engine Heating Method parameter is set to 1. In this
mode, at first the engine will run during parameter Engine Heating Timer, then it will continue to run
until the measured coolant temperature reaches the limit defined in parameter Engine Heating
Temperature. When the requested temperature is reached, the generator contactor will be operated.
This operation mode may be used as a backup to the engine body heater. If the engine body is warm
the heating will be skipped.
6.4 Engine Idle Speed Operation
It may be required that the engine runs at the idle speed for a programmed duration for engine
heating. The idle operation duration is adjusted with the parameter Idle Speed Timer. The idle speed
will be set by the governor control unit of the engine.
Any of the spare relay outputs may be assigned as IDLE output using Relay Definition
program parameters. Also relays on an extension module may be assigned to this function.
The Idle speed operation is performed both in engine start-up and cool-down sequences.
Speed and voltage protections are disabled during idle speed operation.
6.5 Engine Block Heater
The unit is able to provide a relay output in order to drive the block heater resistor.
The temperature reference is the coolant temperature measured from the the analog sender
input.
The block heater relay function may be assigned to spare relays using Relay Definition
program parameters. Also relays on an extension module may be assigned to this function.
The engine body temperature limit is adjusted using the parameter Engine Heating
Temperature. The same parameter is used for engine heating operation.
The relay will become active if the body temperature falls to 4 degrees below the limit set by
Engine Heating Temperature. It turns off when the body temperature exceeds Engine Heating
Temperature.
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6.6 Fuel Pump Control
The unit is able to provide a relay output in order to drive the fuel pump motor. The fuel pump
is used in order to transfer fuel from the large capacity main tank (if exists) to the genset daily tank
which is generally integrated in the chassis and has a limited capacity.
The fuel level reference is measured through the analog fuel level sender. When the
measured fuel level falls below Fuel Pump Low Limit parameter, the fuel pump relay output will
operate. When the fuel level reaches Fuel Pump High Limit parameter, the relay will turn off. Thus
the chassis fuel tank level will be always kept between Fuel Pump Low Limit and Fuel Pump High
Limit parameters.
The fuel pump relay function may be assigned to spare relays using Relay Definition program
parameters. Also relays on an extension module may be assigned to this function.
6.7 Mains Simulation (Disable Start)
The unit offers an optional SIMULATE MAINS signal input. Any digital input may be assigned
as Simulate Mains using Input Function Select program parameters.
It is also necessary to set the ACTION program parameter of the related input to 3 in order to
prevent any alarms generated from this input.
The SIMULATE MAINS signal may be a NO or NC contact, switching to either battery positive or
battery negative. These selections are made using the programming menu.
If the Simulate Mains input is defined and the input signal is active, the mains phases are not
monitored and supposed to be inside limits. This will prevent the genset from starting even in case of a
mains failure. If the genset is running when the signal is applied, then usual Mains Waiting and
Cooldown cycles will be performed before engine stop. When the SIMULATE MAINS signal is present,
the front panels mimic diagram’s mains LEDs will reflect the mains voltages as present.
When the signal is passive, the unit will revert to normal operation and monitor the mains
voltage status.
The REMOTE START operation overrides SIMULATE MAINS and FORCE
TO START operations.
DKG-319 User Manual V-27
(14.04.2011)
- 17 -
6.8 Delayed Mains Simulation, Battery Charging
The Delayed Mains Simulation feature is used in battery backed up telecom systems where
batteries are able to supply the load during a certain period. The genset is requested to run only when
battery voltage drops below the critical level.
Once the engine runs, the rectifier system starts charging the batteries and the battery voltage
goes up immediately. Thus the engine should continue to run a programmed period for effective
charging.
The critical battery voltage level will be detected by an external unit which provides the digital
Simulate Mains signal for the genset control unit.
The unit offers an optional SIMULATE MAINS signal input. Any digital input may be assigned
as Simulate Mains using Input Function Select program parameters.
It is also necessary to set the ACTION program parameter of the related input to 3 in order to
prevent any alarms generated from this input.
The SIMULATE MAINS signal may be a NO or NC contact, switching to either battery positive or
battery negative. These selections are made using the programming menu.
If the Delayed Simulate Mains program parameter is set to 1 and the input signal is active
when the genset is not feeding the load, then the genset will not run. This will prevent the genset from
starting when the simulate mains signal is present (batteries charged). The genset will start when the
simulate mains signal disappears.
If the genset is running when the signal is applied, then MAINS SIMULATION will be
prevented during Flashing Relay Timer program parameter. After this, usual Mains Waiting and
Cooldown cycles will be performed before engine stop. When the SIMULATE MAINS signal is present,
the front panels mimic diagram’s mains LEDs will reflect the mains voltages as present.
When the signal is passive, the unit will revert to normal operation and monitor the mains
voltage status.
The REMOTE START operation overrides DELAYED SIMULATE MAINS
operation. When both parameters “Remote Start Operation” and
“Delayed Simulate Mains” are set then REMOTE START operation m
ode
is performed.
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