DSE 720 Operating Manual

COMPLEX SOLUTIONS
MADE SIMPLE

DEEP SEA ELECTRONICS PLC

DSE720

AUTOSTART CONTROL MODULE

OPERATING MANUAL

http://bestgenerator.spb.ru/?page_id=6765

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Deep Sea Electronics Plc
Highfield House
Hunmanby
North Yorkshire
YO14 0PH
ENGLAND

Sales Tel: [phone]
Sales Fax: [phone]

E-mail: [e-mail]

Website: www.deepseaplc.com

DSE Model 720 Control and Instrumentation System Operators Manual
© Deep Sea Electronics Plc

All rights reserved. No part of this publication may be reproduced in any material form (including photocopying
or storing in any medium by electronic means or other) without the written permission of the copyright holder
except in accordance with the provisions of the Copyright, Designs and Patents Act 1988.
Applications for the copyright holder’s written permission to reproduce any part of this publication should be
addressed to Deep Sea Electronics Plc at the address above.

Any reference to trademarked product names used within this publication is owned by their respective
companies.

Deep Sea Electronics Plc reserves the right to change the contents of this document without prior notice.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 3 -

TABLE OF CONTENTS

1 INTRODUCTION .............................................................................................. 4

2 CLARIFICATION OF NOTATION USED WITHIN THIS PUBLICATION. ........ 4

3 OPERATION .................................................................................................... 5

3.1 MANUAL OPERATION ........................................................................................................ 6

3.2 TEST OPERATION .............................................................................................................. 7

3.3 AUTOMATIC OPERATION .................................................................................................. 8

3.4 PROTECTIONS .................................................................................................................... 9

3.5 WARNINGS .......................................................................................................................... 9

3.6 SHUTDOWNS .................................................................................................................... 10

4 FRONT PANEL CONFIGURATION ............................................................... 11

4.1 ACCESSING THE FRONT PANEL CONFIGURATION EDITOR ..................................... 11

4.2 EDITING A PARAMETER .................................................................................................. 11

5 INSTALLATION INSTRUCTIONS ................................................................. 16

5.1 PANEL CUTOUT ............................................................................................................... 16

5.2 CABLE GUIDES ................................................................................................................ 16

5.3 COOLING ........................................................................................................................... 16

5.4 UNIT DIMENSIONS AND REAR PANEL LAYOUT .......................................................... 17

5.5 FRONT PANEL LAYOUT .................................................................................................. 17

6 ELECTRICAL CONNECTIONS ..................................................................... 18

6.1 CONNECTION DETAILS ................................................................................................... 18

6.1.1 CONNECTOR A .......................................................................................................... 18

6.1.2 CONNECTOR B .......................................................................................................... 19

6.1.3 CONNECTOR C .......................................................................................................... 19

6.2 ORDERING REPLACEMENT CONNECTORS FROM DSE ............................................. 19

7 SPECIFICATION ............................................................................................ 20

8 COMMISSIONING .......................................................................................... 21

8.1 PRE-COMMISSIONING ..................................................................................................... 21

9 FAULT FINDING ............................................................................................ 22

10 TYPICAL WIRING DIAGRAM ..................................................................... 23

11 SOLID STATE OUTPUTS ........................................................................... 24

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1 INTRODUCTION

The DSE 720 automatic mains failure module has been primarily designed to monitor the mains
(utility) supply, starting the generator automatically should it fall out of limits, transferring the load
automatically to the generator. Once the mains (utility) has returned the load is automatically
transferred back to the mains (utility) and the generator cooled down before it stops. If required the
generator can be started and stopped manually.

The DSE 720 module monitors the mains (utility) supply indicating the status of the mains via an
LED. Additionally the module monitors the engine, indicating that the generator is running via an
LED. An LCD display is used to indicate further status and alarm conditions. When a fault is
detected the generator is automatically shut down, giving a true first up fault condition.

Using the module’s front panel configuration editor it is possible to alter selective operational
sequences, timers and alarm trips. Comprehensive configuration and monitoring is also available
using the 700 series PC configuration software for Windows™.

The module is housed in a fully enclosed robust plastic case for front panel mounting, offering a
high IP rating of 56 with the optional gasket. Connections to the module are via locking plug and
sockets.

2 CLARIFICATION OF NOTATION USED WITHIN THIS

PUBLICATION.

NOTE:

Highlights an essential element of a procedure to ensure correctness.

CAUTION!

Indicates a procedure or practice which, if not strictly observed, could result
in damage or destruction of equipment.

WARNING!

Indicates a procedure or practice, which could result in injury to personnel
or loss of life if not followed correctly.

©

Deep Sea Electronics Plc owns the copyright to this manual, which cannot
be copied, reproduced or disclosed to a third party without prior written
permission.

Compliant with BS EN 60950 Low Voltage Directive
Compliant with BS EN 50081-2 EMC Directive
Compliant with BS EN 50082-2 EMC Directive

C US

UL Registered Component for USA & Canada

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 5 -

3 OPERATION

The following description details the sequences followed by a module containing the standard
‘factory configuration’. Always refer to your configuration source for the exact sequences and
timers observed by any particular module in the field.

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3.1 MANUAL OPERATION

This mode is activated by pressing the pushbutton. An LED indicator beside the button
confirms this action.

Press the

button to begin the start sequence.

NOTE:- There is no Start Delay in this mode of operation.

If the pre-heat output option is selected this timer is then initiated, and the auxiliary output selected
is energised.

After the above delay the Fuel Solenoid is energised, then the Starter Motor is engaged.
The engine is cranked for a configurable period. If the engine fails to fire during this cranking

attempt then the starter motor is disengaged for the configurable rest period. Should this sequence
continue beyond the 3 cranking attempts, the start sequence will be terminated and Fail to Start

fault will be displayed.

When the engine fires, the starter motor is disengaged and locked out at 20Hz measured from the
Alternator output.

After the starter motor has disengaged, the Safety On delay is activated.
‘Delayed’ alarms (underspeed, low oil pressure etc) will be monitored after the end of the Safety
On delay.

The generator will run off load, unless the mains (utility) supply fails or a Remote Start on load
signal is applied, at which point the load will be transferred to the generator so long as the
Warmup Timer (if configured) has expired.

The generator will continue to run on load regardless of the state of the mains (utility) supply or
remote start input until the Auto mode is selected.

If Auto mode is selected, and the mains supply is healthy with the remote start on load signal not
active, then the Remote Stop Delay Timer begins, after which, the load is transferred to the mains
(utility). The generator will then run off load allowing the engine a cooling down period.

Selecting STOP (O) de-energises the FUEL SOLENOID, bringing the generator to a stop.

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3.2 TEST OPERATION

This mode is activated by pressing the pushbutton. An LED indicator beside the button
confirms this action.

Press the

button to begin the test sequence.

If the pre-heat output option is selected then the pre-heat timer is initiated, and the corresponding
auxiliary output (if configured) will energise.

After the above delay the Fuel Solenoid is energised, then ½ second later, the Starter Motor is
engaged.

The engine is cranked for a configurable period. If the engine fails to fire during this cranking
attempt then the starter motor is disengaged for the configurable rest period. Should this sequence
continue beyond the 3 cranking attempts, the start sequence will be terminated and Fail to Start

fault will be displayed.

When the engine fires, the starter motor is disengaged and locked out at 20Hz measured from the
Alternator output.

After the starter motor has disengaged, the Safety On delay is activated.
‘Delayed’ alarms (underspeed, low oil pressure etc) will be monitored after the end of the Safety
On delay.

The Warmup timer (if configured) is then followed.

NOTE:- The set will not be allowed to load until all delayed alarms indicate “normal”
operation. This prevents excessive wear on the damage that could be caused by loading
an engine with low oil pressure.

The load will be transferred to the generator and the set will run on load until Auto mode is selected
or STOP is pressed.

Selecting STOP (O) de-energises the FUEL SOLENOID, bringing the generator to a stop.

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3.3 AUTOMATIC OPERATION

This mode is activated by pressing the pushbutton. An LED indicator beside the button
confirms this action.

Should the mains (utility) supply fall outside the configurable limits for longer than the period of the
delay start timer, the mains (utility) is healthy indicator will extinguish. Additionally, while in AUTO
mode, the remote start input is monitored.

Whether the start sequence is initiated by mains (utility) failure, or by remote start input, the
following sequence is followed :

To allow for short term mains supply transient conditions or false remote start signals, the Start
Delay timer is initiated. After this delay, if the pre-heat output option is selected then the pre-heat
timer is initiated, and the corresponding auxiliary output (if configured) will energise.

NOTE:- If the mains supply returns within limits, (or the Remote Start signal is
removed if the start sequence was initiated by remote start) during the Start Delay timer,
the unit will return to a stand-by state.

After the above delays the Fuel Solenoid is energised, then ½ second later, the Starter Motor is
engaged.

The engine is cranked for a configurable period. If the engine fails to fire during this cranking
attempt then the starter motor is disengaged for the configurable rest period. Should this sequence
continue beyond the 3 cranking attempts, the start sequence will be terminated and Fail to Start

fault will be displayed.

When the engine fires, the starter motor is disengaged and locked out at 20Hz measured from the
Alternator output.
After the starter motor has disengaged, the Safety On delay is activated.
‘Delayed’ alarms (underspeed, low oil pressure etc) will be monitored after the end of the Safety
On delay.

The Warmup timer (if configured) is then followed.

NOTE:- The set will not be allowed to load until all delayed alarms indicate “normal”
operation. This prevents excessive wear on the damage that could be caused by loading
an engine with low oil pressure.

If the remote start is being used and has been configured to Remote start is on load, or the mains
(utility) has failed, the load will be transferred to the generator.

On the return of the mains supply, (or removal of the Remote Start signal if the set was started by
remote signal), the Stop delay timer is initiated, once it has timed out, the load is transferred back
to the mains (utility). The Cooling timer is then initiated, allowing the engine a cooling down period
off load before shutting down. Once the Cooling timer expires the Fuel Solenoid is de-energised,
bringing the generator to a stop.

Should the mains supply fall outside limits again (or the Remote Start signal be re-activated)
during the cooling down period, the load will be immediately transferred to the generator.

Selecting STOP (O) de-energises the FUEL SOLENOID, bringing the generator to a stop.

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3.4 PROTECTIONS

The module will indicate that an alarm has occurred by illuminating the relevant LED.

3.5 WARNINGS

Warnings are used to warn the operator of an impending fault but the engine continues to run.
BATTERY CHARGE FAILURE, if the module does not detect a voltage from the warning light

terminal on the auxiliary charge alternator, the icon will illuminate. (Either 8 Volts or 16 Volts
depending on the configuration of Nominal DC Voltage).

LOW PLANT BATTERY ALARM The module’s DC supply is monitored and if it falls below the
configurable level an alarm is generated and the

icon will illuminate.

INPUTS 1 AND 2 can be configured as warnings or shutdowns. The relevant icon will be
illuminated when the input is active.

The item is indication only (not an alarm). For instance this could indicate “System in Auto”
The item has generated a Warning alarm condition.

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3.6 SHUTDOWNS

Shutdowns are latching and stop the Generator. The alarm must be cleared, and the fault removed
to reset the module. In the event of a shutdown the appropriate icon will be illuminated

NOTE:- The alarm condition must be rectified before a reset will take place. If the
alarm condition remains it will not be possible to reset the unit (The exception to this is the
Low Oil Pressure alarm and similar ‘delayed alarms’, as the oil pressure will be low with
the engine at rest). Any subsequent warnings or shutdowns that occur will be displayed
steady, therefore only the first-up shutdown will appear flashing.

FAIL TO START, if the engine does not fire after the pre-set 3 attempts at starting, a shutdown will
be initiated.

The

icon will illuminate.

LOW OIL PRESSURE, if the module detects that the engine oil pressure has fallen below the low
oil pressure setting after the Safety On timer has expired, a shutdown will occur.

The

icon will illuminate.

HIGH ENGINE TEMPERATURE if the module detects that the engine coolant temperature has
exceeded the high engine temperature setting after the Safety On timer has expired, a shutdown
will occur.

The icon will illuminate.
OVERSPEED / OVERFREQUENCY, if the engine speed exceeds the pre-set trip a shutdown is

initiated. Overspeed is not delayed, it is an immediate shutdown.
The icon will illuminate.

NOTE:- During the start-up sequence the overspeed trip level is extended to 24%
above the normal frequency for the duration of the safety timer to allow an extra trip level
margin. This is used to prevent nuisance tripping on start-up.

UNDERSPEED / UNDERFREQUENCY, if the engine speed falls below the pre-set trip after the
Safety On timer has expired, a shutdown is initiated.

The icon will illuminate.
INPUTS 1 AND 2 can be configured as warnings or shutdowns. The relevant icon will be

illuminated when the input is active.

The item is indication only (not an alarm). For instance this could indicate “System in Auto”
(Flashing) The item has generated a Shutdown alarm condition.

FAILED TO REACH LOADING VOLTAGE, If the engine fires but the generator fails to reach the
loading voltage before the end of the Safety On timer a shutdown is initiated.

The icon will illuminate.
FAILED TO REACH LOADING FREQUENCY, If the engine fires but the generator fails to reach

the loading frequency before the end of the Safety On timer a shutdown is initiated.
The icon will illuminate.

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4 FRONT PANEL CONFIGURATION

The DSE 720 module is fully configurable from the front panel or from the 7xx PC configuration
software.

4.1 ACCESSING THE FRONT PANEL CONFIGURATION EDITOR

NOTE:- Configuration mode can ONLY be entered when the module is in the STOP

mode and the engine is at rest.

Press the DOWN and STOP buttons to enter
configuration mode.

and

The first configurable parameter is displayed.
In this example, the Start delay timer
(parameter 0) is currently set to 5s.

Parameter
(Start delay)

Current value
(5 seconds)

4.2 EDITING A PARAMETER

• Enter the editor as described above.

• Press + / - to scroll through the parameters to the one you want to change.

• Press 9 to enter edit mode. The symbol will flash on the

display to indicate that edit mode has been entered.

• Press + / - to change the value to the desired parameter.

• Press 9 to save the value and exit edit mode for this parameter.

• The symbol will be removed from the display to indicate that edit mode has been exited.

• To select another value to edit, press the + / - buttons. Continuing to press the + and –

buttons will cycle through the adjustable parameters as shown in the following lists.

NOTE: To exit the front panel configuration editor at any time, press the Stop/Reset

button.

Ensure you have saved any changes you have made by pressing the 9 button first.

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Parameter Minimum Maximum Default

Timers

0 - Start Delay 0 secs 60 mins 5 secs
1 - Preheat 0 secs 60 secs 0 secs
2 - Cranking Time 3 secs 60 secs 10 secs
3 - Crank Rest Time 3 secs 60 secs 10 secs
4 - Safety On Delay 8 secs 60 secs 8 secs
5 - Warm Up Time 0 secs 10 mins 0 secs
6 - Frequency Alarm Delay (gen transient delay) 0 secs 10 secs 0 secs
7 - Remote Stop Delay Time 0 secs 60 mins 30 secs
8 - Cooling Time 0 secs 30 mins 1 min
9 - ETS Hold Time 0 secs 60 secs 0 secs
10 - Fail To Stop Delay Time 10 secs 60 secs 60 secs
11 - Low DC Voltage Alarm Delay 0 secs 60 mins 5 mins

Generator

12 - Under Frequency 0 60Hz 40Hz
13 - Loading Frequency 20Hz 60Hz 47Hz
14 - Over Frequency 50Hz 72Hz 57Hz
15 - Loading Voltage 50V 333V 212V
16 - Over Current Alarm Limit 50% 120% 110%
17 - Over Current Alarm Type 0 2 1

Possible selections 0 - Warning
1 - Shutdown
2 - Electrical Trip

Engine

18 - Low DC Voltage Alarm Limit 0 25V 8V
19 - Charge Fail Voltage Alarm Limit 0V 25V 8V

Input settings

20 - Low Oil Pressure 5 PSI 150 PSI 15 PSI
21 - High Engine Temperature

90°C 150°C 95°C

22 - Remote Start / Simulated Mains input 0 3 0

Possible selections : 0 - Remote start, close to activate
1 - Remote start, open to activate
2 - Simulated mains, close to activate
3 - Simulated mains, open to activate
23 - Aux Input 1 (see note 5) 0 9 8

Possible selections : 0 - Delayed, warning, close to activate
1 - Delayed, warning, open to active
2 - Immediate, warning, close to activate
3 - Immediate, warning, open to activate
4 - Delayed, shutdown, close to activate
5 - Delayed, shutdown. Open to activate
6 - Immediate, shutdown, close to activate
7 - Immediate, shutdown, open to activate
8 - Lamp test, close to activate
9 - Lamp test, open to activate
24 - Aux Input 1 delay 0 secs 10.0 secs 0
25 - Aux Input 2 (see note 6) 0 9 0

Possible selections : 0 - Delayed, warning, close to activate
1 - Delayed, warning, open to active
2 - Immediate, warning, close to activate
3 - Immediate, warning, open to activate
4 - Delayed, shutdown, close to activate
5 - Delayed, shutdown. Open to activate
6 - Immediate, shutdown, close to activate
7 - Immediate, shutdown, open to activate
8 - Electrical trip, close to activate
9 - Electrical trip, open to activate
26 - Aux Input 2 delay 0 sec 10.0 secs 0

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 13 -

Parameter Minimum Maximum Default

Outputs

27 - Aux Output 1 0 15 1

Possible selections : 0 - Unused
1 - Preheat Mode 0
2 - Air Flap
3 - Close Generator
4 - Energise to stop
5 - Engine Running
6 - Shutdown Alarm
7 - System in auto
8 - Auxiliary input 1 active
9 - Auxiliary input 2 active
10 - Preheat mode 1
11 - Preheat mode 2
12 - Preheat mode 3
13 - Warning Alarm
14 - Common Alarm
15 - Fail to start
28 - Aux Output 2 0 15 14

Possible selections : 0 - Unused
1 - Preheat Mode 0
2 - Air Flap
3 - Close Generator
4 - Energise to stop
5 - Engine Running
6 - Shutdown Alarm
7 - System in auto
8 - Auxiliary input 1 active
9 - Auxiliary input 2 active
10 - Preheat mode 1
11 - Preheat mode 2
12 - Preheat mode 3
13 - Warning Alarm
14 - Common Alarm
15 - Fail to start

NOTE:- The ‘preheat modes’ selectable for configurable outputs and LCD indicators

perform the following actions :

Preheat mode 0 - Preheat during preheat timer, ceasing at end of preheat timer.
Preheat mode 1 - Preheat during preheat timer and continue until engine stops cranking.
Preheat mode 2 - Preheat during preheat timer and continue until the safety delay timer
has expired.
Preheat mode 3 - Preheat during preheat timer and continue until the warming timer has
expired.

In addition, in all preheat modes, preheat takes place during the crank rest timer between
crank cycles.

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Parameter Minimum Maximum Default

LCD Indicators

29 - LCD indicator 1 0 15 8

Possible selections : 0 - Unused
1 - Preheat Mode 0
2 - Air Flap
3 - Close Generator
4 - Energise to stop
5 - Engine Running
6 - Shutdown Alarm
7 - System in auto
8 - Auxiliary input 1 active
9 - Auxiliary input 2 active
10 - Preheat mode 1
11 - Preheat mode 2
12 - Preheat mode 3
13 - Warning Alarm
14 - Common Alarm
15 - Fail to start
30 - LCD indicator 2 0 15 9

Possible selections : 0 - Unused
1 - Preheat Mode 0
2 - Air Flap
3 - Close Generator
4 - Energise to stop
5 - Engine Running
6 - Shutdown Alarm
7 - System in auto
8 - Auxiliary input 1 active
9 - Auxiliary input 2 active
10 - Preheat mode 1
11 - Preheat mode 2
12 - Preheat mode 3
13 - Warning Alarm
14 - Common Alarm
15 - Fail to start

NOTE:- The ‘preheat modes’ selectable for configurable outputs and LCD indicators

perform the following actions :

Preheat mode 0 - Preheat during preheat timer, ceasing at end of preheat timer.
Preheat mode 1 - Preheat during preheat timer and continue until engine stops cranking.
Preheat mode 2 - Preheat during preheat timer and continue until the safety delay timer
has expired.
Preheat mode 3 - Preheat during preheat timer and continue until the warming timer has
expired.

In addition, in all preheat modes, preheat takes place during the crank rest timer between
crank cycles.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 15 -

Parameter Minimum Maximum Default

Misc

31 - Full Load Current Rating 5A 6000A 500A
32 - Current Transformer Primary 5A 6000A 500A
33 - Alternator Poles 2 8 4
34 - AC Topology (see note 1) 0 1 0

Possible selections : 0 - 3 phase, 4 wire
1 - Single phase, 2 wire
35 - Oil Pressure Display Units 0 1 0

Possible selections : 0 - Bar / PSI
1 - Kpa
36 - Oil pressure sender type 0 - Not used
1 - Digital closed for low oil pressure
2 - Digital open for low oil pressure
3 - VDO 5 bar
4 - VDO 10 bar
5 - Datcon 5 bar
6 - Datcon 10 bar
7 - Datcon 7 bar
8 - Murphy 7 bar
9 - User configured
37 - Coolant temperature sender type 0 – Not used
1 - Digital closed for high temperature
2 - Digital open for high temperature

3 - VDO 120°C

4 - Datcon high
5 - Datcon low
6 - Murphy
7 - Cummins
8 - PT100
9 - User configured

Mains

38 - Immediate Mains Dropout 0 1 1

Possible selections : 0 - No
1 - Yes
39 - Mains Undervolt Trip 50V 333V 184V
40 - Mains Undervolt Return 50V 333V 207V
41- Mains Overvolt Return 50V 333V 253V
42 - Mains Overvolt Trip 50V 333V 276V
43 - Mains transient Delay 0 sec 30 sec 0 sec

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5 INSTALLATION INSTRUCTIONS

The model DSE 720 Module has been designed for front panel mounting. Fixing is by 4 x 4mm
screws into the panel fascia.

5.1 PANEL CUTOUT

182mm x 137mm (7.17” x 5.39”)
Maximum panel thickness – 8mm (0.3”)

In conditions of excessive vibration the module should be mounted on suitable anti-vibration
mountings.

5.2 CABLE GUIDES

The model 720 has integral cable clamp/guides fitted to the rear of the module.
These enable the panel wiring to be tethered to the clamps helping to guide the cables neatly
around the panel. The clamps are designed for cable tie attachments and are spaced to match the
sticky backed cable tie bases commonly used in this type of application.

HINT!:- The cables can be placed in three different positions, above the clamps,

between the clamps and below the clamps.

Showing rear view of module without cables

Showing cable between the

clamps

5.3 COOLING

The module has been designed to operate over a wide temperature range -30ºC to +70ºC.
Allowances should be made for the temperature rise within the control panel enclosure. Care
should be taken NOT to mount possible heat sources near the module unless adequate ventilation
is provided. The relative humidity inside the control panel enclosure should not exceed 93%.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 17 -

5.4 UNIT DIMENSIONS AND REAR PANEL LAYOUT

Mounting holes suitable for 4 x 4mm screws

5.5 FRONT PANEL LAYOUT

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6 ELECTRICAL CONNECTIONS

6.1 CONNECTION DETAILS

The following describes the connections and recommended cable sizes to the 3 plugs and sockets
on the rear of the Module.
Termination at the plug is by screw terminal : Tightening torque 0.8Nm (7 lb-in)

6.1.1 CONNECTOR A

PIN
No

DESCRIPTION CABLE SIZE NOTES

1 Plant supply negative 2.5mm

2

(13 AWG)

2 Plant supply positive 2.5mm

2

(13 AWG) Fuse at 2A anti-surge

3 Emergency stop input 1.0mm

2

(18 AWG) Switch to battery positive, OPEN to

STOP the set.

4 Fuel output 1.0mm

2

(18 AWG) Connect to Fuel slave relay coil

5 Start output 1.0mm

2

(18 AWG) Connect to Start slave relay coil

6 Configurable output 1 1.0mm

2

(18 AWG)

7 Configurable output 2 1.0mm

2

(18 AWG)

8 Mains loading switch output 1.0mm

2

(18 AWG) Connect to Mains slave relay coil

9 Generator loading switch output 1.0mm

2

(18 AWG) Connect to Gen slave relay coil

10 Charge Fail / Excite 2.5mm

2

(13 AWG) Do not connect to ground (battery -ve)

11 LOP input 0.5mm

2

(20 AWG) Sender / Switch( to plant supply

negative) input

12 HET input 0.5mm

2

(20 AWG) Sender / Switch( to plant supply

negative) input

13 Sender/Switch common 0.5mm

2

(20 AWG) Requires a contact to plant supply

negative.

NOTE:- Emergency stop input is normally closed to positive, open to STOP the set. If
Emergency Stop is not required you must connect a permanent positive signal onto
terminal 3.

NOTE:- Fuel, Start, configurable output 1, configurable output 2, mains loading switch
and generator loading switch outputs are Solid State Outputs that switch to battery
positive when active. See section entitled “Solid State Outputs” elsewhere in this manual
for further details.

NOTE:- The Close Mains Slave relay should be NORMALLY CLOSED when de­energised for fail safe reasons. Should the DC supply fail the mains will always be
available. The output from the DSE solid state output will energise to OPEN the relay and
isolate the mains supply from the load.

NOTE:- Terminal 13, sender common must be connected to a sound earth point on the
engine block, or battery negative. The connection to terminal 13 must not be used for any
other purpose.

NOTE:- When using Switches instead of senders (oil pressure / coolant temp) connect
the switch from T13 to the relevant input (T11 = oil press, T12 = coolant temp) AND
connect T13 to battery negative.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 19 -

6.1.2 CONNECTOR B

PIN
No

DESCRIPTION CABLE SIZE NOTES

14 Remote Start / Simulated Mains

input

0.5mm

2

(20 AWG) Requires a contact to plant supply

negative.

15 Configurable input 1 0.5mm

2

(20 AWG) Requires a contact to plant supply

negative.

16 Configurable input 2 0.5mm

2

(20 AWG) Requires a contact to plant supply

negative.

17 Functional Earth 2.5mm

2

(13 AWG) Connect to a good, clean Earth point

18 Generator Current L1 i/p 2.5mm

2

(18 AWG) Connect to Gen L1 CT

19 Generator Current L2 i/p 2.5mm

2

(18 AWG) Connect to Gen L2 CT

20 Generator Current L3 i/p 2.5mm

2

(18 AWG) Connect to Gen L3 CT

21 Generator Current Common i/p 2.5mm

2

(18 AWG) Connect to Gen CT common

NOTE:- Remote Start / Simulated Mains function is configurable using either the front

panel configuration editor or the 72x PC configuration software.

NOTE:- Current inputs are rated at 5A maximum. If it is required to measure overload,
then the CT should be sized to cater for this. Ie for 100A set, fit 120A:5A CTs to allow the
module to measure 20% overload without exceeding the module’s 5A specification.

6.1.3 CONNECTOR C

PIN
No

DESCRIPTION CABLE SIZE NOTES

22 Mains(Utility)voltage L1 i/p 1.0mm

2

(18 AWG) Connect to Mains L1

23 Mains(Utility)voltage L2 i/p 1.0mm

2

(18 AWG) Connect to Mains L2

24 Mains(Utility)voltage L3 i/p 1.0mm

2

(18 AWG) Connect to Mains L3

25 Mains(Utility)voltage Neutral i/p 1.0mm

2

(18 AWG) Connect to Mains Neutral

26 Generator voltage L1 i/p 1.0mm

2

(18 AWG) Connect to Generator L1 output

27 Generator voltage Neutral i/p 1.0mm

2

(18 AWG) Connect Generator Neutral

6.2 ORDERING REPLACEMENT CONNECTORS FROM DSE

Connector Description DSE Part No.

A (1-13) BL13 PCB connector 5.08mm plug 007-104
B (14-22) BL08 PCB connector 5.08mm plug 007-125
C (23-27) BL06 PCB connector 7.62mm plug 007-432

- 20 - 057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM

7 SPECIFICATION

DC Supply 8.0V to 35V Continuous.
Cranking Dropouts Able to survive 0V for 50mS, providing supply was at least 10V before

dropout and supply recovers to 5V. This is achieved without the need

for internal batteries.

Typical Standby Current 145mA at 12V. 150mA at 24V
Max. Operating Current 180mA at 12V. 190mA at 24V
Alternator / Mains (Utility) Input
Range
Single phase 2 wire system 35V AC - 277V AC (ph-N) (+20%)
3Phase 4Wire System 35V AC - 277V AC (ph-N) 3 Phase 4wire (+20%)

(Must be at least 15V during engine cranking)
Alternator / Mains (Utility) Input
Frequency

50Hz - 60 Hz at rated engine speed
Start Output 2.4 Amp DC at supply voltage.

Fuel Output 2.4 Amp DC at supply voltage.
Auxiliary Outputs 1.2 Amp DC at supply voltage.
Dimensions 209mm x 146mm (8.23” x 5.75”)
Panel cut-out 182mm x 137mm (7.17” x 5.39”)

Maximum panel thickness – 8mm (0.3”)
Charge Fail / Excitation Range 12 Volts nominal = 8 Volts Charge fail

24 Volts nominal = 16 Volts Charge fail
Current Transformer Specification 5A 0.5VA secondary winding
Operating Temperature Range -30°C to +70°C
Electromagnetic Compatibility BS EN 50081-2 EMC Generic Emission Standard (Industrial)

BS EN 50082-2 EMC Generic Immunity Standard (Industrial)
Electrical Safety BS EN 60950 Safety of I.T. equipment, including electrical business

equipment.
Cold Temperature

BS EN 60068-2-1 to –30°C
Hot Temperature

BS EN 60068-2-2 to +70°C
Humidity

BS2011-2-1 to 93% RH @ 40°C for 48 Hours
Vibration BS EN60068-2-6

10 sweeps at 1 octave/minute in each of 3 major axes.

5Hz to 8Hz @ +/-7.5mm constant displacement

8Hz to 500Hz @ 2gn constant acceleration
Shock BS EN 60068-2-27

3 Half sine shocks in each of 3 major axes

15gn amplitude, 11mS duration
Applicable Standards

Compliant with BS EN 60950 Low Voltage Directive

Compliant with BS EN 50081-2: 1992 EMC Directive

Compliant with BS EN 61000-6-4: 2000 EMC Directive

Compliance to European Legislation

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 21 -

8 COMMISSIONING

8.1 PRE-COMMISSIONING

Before the system is started, it is recommended that the following checks are made:­The unit is adequately cooled and all the wiring to the module is of a standard and rating

compatible with the system.
The unit DC supply is fused and connected to the battery and that it is of the correct polarity.

To check the start cycle operation take appropriate measures to prevent the engine from starting
(disable the operation of the fuel solenoid). After a visual inspection to ensure it is safe to proceed,
connect the battery supply. Select “MANUAL” and press the START button. The unit start
sequence will commence.

The starter will engage and operate for the pre-set crank period. After the starter motor has
attempted to start the engine for the pre-set number of attempts the LCD will display ‘Failed to
start’.

Restore the engine to operational status (reconnect the fuel solenoid), again select “MANUAL” and
press the START button. This time the engine should start and the starter motor should disengage
automatically. If not then check the engine is fully operational (fuel available, etc.) and that the fuel
solenoid is operating. The engine should now run up to operating speed. If not, and an alarm is
present, check the alarm condition for validity, then check input wiring. The engine should continue
to run for an indefinite period.

Select “AUTO” on the front panel, the engine will run for the pre-set cooling down period, then stop.
The generator should stay in the standby mode. If not check that there is not a signal present on
the Remote start input and that the mains (utility) supply is healthy and available.

Initiate an automatic start by supplying the remote start signal or failing the mains (utility) supply.
The start sequence will commence and the engine will run up to operational speed. Once the
generator is available a load transfer will take place, the Generator will accept the load. If not,
check the wiring to the Generator switching device.

Remove the remote start signal and/or ensure the mains (utility) supply is healthy, the return
sequence will start. After the pre-set time period, the load will be removed from the generator. The
generator will then run for the pre-set cooling down period, then shutdown into it’s standby mode.

If despite repeated checking of the connections between the 720 and the customer’s system,
satisfactory operation cannot be achieved, then the customer is requested to contact the factory for
further advice on:-

INTERNATIONAL TEL: [phone]
INTERNATIONAL FAX: [phone]

E-mail:

[e-mail]

Website : www.deepseaplc.com

- 22 - 057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM

9 FAULT FINDING

SYMPTOM POSSIBLE REMEDY

Unit is inoperative Check the battery and wiring to the unit. Check the DC supply. Check the DC fuse.
Unit shuts down Check DC supply voltage is not above 35 Volts or below 9 Volts

Check the operating temperature is not above 70 °C. Check the DC fuse.
Low oil Pressure fault operates after
engine has fired

Check engine oil pressure. Check oil pressure switch and wiring. Check switch

polarity is correct (i.e. Normally Open or Normally Closed).
High engine temperature fault
operates after engine has fired.

Check engine temperature. Check switch and wiring. Check switch polarity is

correct (i.e. Normally Open or Normally Closed).
Shutdown fault operates Check relevant switch and wiring of fault indicated by the illuminated LED. Check

configuration of input.
Warning fault operates Check relevant switch and wiring of fault indicated by the illuminated LED. Check

configuration of input.
Fail to Start is activated after pre-set
number of attempts to start

Check wiring of fuel solenoid. Check fuel. Check battery supply. Check battery

supply is present on the Fuel output of the module. Refer to engine manual.
Continuous starting of generator
when in AUTO

Check that mains (utility) supply is healthy and check that it’s protection fuses are in

place and are not blown.

Check that there is no signal present on the “Remote Start” input.
Generator fails to start on receipt of
Remote Start signal or mains (utility)
supply failure.

If remote start fault, check signal is on “Remote Start” input. Confirm that the input

is configured to be used as “Remote Start”.
Pre-heat inoperative Check wiring to engine heater plugs. Check battery supply. Check battery supply is

present on the Pre-heat output of module. Check pre-heat has been selected in

your configuration.
Starter motor inoperative Check wiring to starter solenoid. Check battery supply. Check battery supply is

present on the Starter output of module. NB all the outputs are negative switching.
Fuel solenoid inoperative Check wiring to fuel solenoid. Check battery supply. Check battery supply is present

on the fuel output of module. NB all the outputs are negative switching.
Engine runs but generator will not
take load

Check that the output is working, NB all outputs are negative switching.

NOTE:- The above fault finding is provided as a guide check-list only. As it is possible
for the module to be configured to provide a wide range of different features always refer
to the source of your module configuration if in doubt.

NOTE:- All the outputs are solid state and switch to battery positive when active.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 23 -

10 TYPICAL WIRING DIAGRAM

- 24 - 057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM

11 SOLID STATE OUTPUTS

DSE’s utilisation of Solid State Outputs gives many advantages, the main points being:
No Moving Parts
Fully Overload / Short Circuit Protected.
Smaller dimensions hence lighter, thinner and cheaper than conventional relays.
Less power required making them far more reliable.

This type of output is normally used with an automotive or plug in relay.

B attery neg at i ve (-)

S olid state out put from DS E m od ule

eg. Term i nal 4 o f 720 - F U EL

Fuel S ole noi d
(+ t ermin al)

* Observe polarity when using
relays fitted with integ ral di odes!

*

AD

B

C

B attery pos iti ve (+ )

A
B
C
D

Solid State Output

from DSE Module Pin

Automotive

relay Pin

8 Pin Plugin relay Function

4 86 7 Fuel Output

85 2 To Negative supply
30 1 To Positive supply via fuse
87 3 To Fuel Solenoid

Example of relay pins connected to DSE solid state output to drive a fuel solenoid.

NOTE:- The Close Mains Relay should be NORMALLY CLOSED when de-energised for
fail safe operation. Should the DC supply fail the mains will always be available. The output
from the DSE solid state output when energised will OPEN the relay therefore isolating the
mains supply.

057-001 720 Operating Instructions Issue 3.1 20/12/2005 AM - 25 -

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