DEEP SEA ELECTRONICS

DSE335 MKII Operator Manual

Document Number: 057-368

Author: Ian Roberts

057-368 ISSUE: 1
 DSE335 MKII Operator Manual

Deep Sea Electronics Ltd.

Highfield House
Hunmanby
North Yorkshire
YO14 0PH
England

Sales Tel: +44 (0) 1723 890099

E-mail: sales@deepseaelectronics.com
Website: www.deepseaelectronics.com

DSE335 MKII Operator Manual

© Deep Sea Electronics Ltd.

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
must be addressed to Deep Sea Electronics Ltd. at the address above.

The DSE logo and the names DSEGenset®, DSEATS®, DSEPower® and DSEControl® are UK
registered trademarks of Deep Sea Electronics Ltd.

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

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

Amendments Since Last Publication

Amd. Comments Date

No.
1 Initial Release 01/08/2023

Typeface: The typeface used in this document is Arial. Care must be taken not to mistake the upper case letter I with the numeral 1. The numeral
1 has a top serif to avoid this confusion.

057-368 ISSUE: 1 Page 2 of 95

 DSE335 MKII Operator Manual

TABLE OF CONTENTS
Section Page
1 INTRODUCTION .................................................................................................. 6
1.1 CLARIFICATION OF NOTATION ............................................................................................ 7
1.2 GLOSSARY OF TERMS .......................................................................................................... 7
1.3 BIBLIOGRAPHY ...................................................................................................................... 8
1.3.1 INSTALLATION INSTRUCTIONS ..................................................................................... 8
1.3.2 MANUALS ......................................................................................................................... 8
1.3.3 TRAINING GUIDES .......................................................................................................... 9
1.3.4 THIRD PARTY DOCUMENTS .......................................................................................... 9
2 SPECIFICATION................................................................................................ 10
2.1 OPERATING TEMPERATURE .............................................................................................. 10
2.2 REQUIREMENTS FOR UL .................................................................................................... 10
2.3 TERMINAL SPECIFICATION ................................................................................................ 11
2.4 POWER SUPPLY REQUIREMENTS ..................................................................................... 11
2.4.1 MODULE SUPPLY INSTRUMENTATION DISPLAY ...................................................... 11
2.5 S1 & S2 VOLTAGE / FREQUENCY SENSING .................................................................... 12
2.6 CURRENT SENSING ............................................................................................................. 12
2.6.1 VA RATING OF THE CTS ............................................................................................... 13
2.6.2 CT POLARITY ................................................................................................................. 14
2.6.3 CT PHASING................................................................................................................... 14
2.6.4 CT CLASS ....................................................................................................................... 14
2.7 INPUTS ................................................................................................................................... 15
2.7.1 DIGITAL INPUTS ............................................................................................................ 15
2.8 CONFIGURABLE VOLT FREE RELAY OUTPUTS .............................................................. 16
2.8.1 CONFIGURABLE VOLT-FREE RELAY OUTPUTS A & E ............................................. 16
2.8.2 CONFIGURABLE VOLT-FREE RELAY OUTPUTS OUTPUTS B & F ........................... 16
2.8.3 CONFIGURABLE OUTPUTS VOLT-FREE RELAY OUTPUTS C & D ........................... 16
2.8.4 CONFIGURABLE OUTPUTS G, H, I, J, K & L ................................................................ 16
2.9 COMMUNICATION PORTS ................................................................................................... 17
2.10 COMMUNICATION PORT USAGE .................................................................................... 18
2.10.1 USB B PORT (PC CONFIGURATION) ........................................................................... 18
2.10.2 USB A PORT ................................................................................................................... 18
2.10.3 RS485 PORT................................................................................................................... 19
2.10.3.1 CABLE SPECIFICATION ......................................................................................... 19
2.10.3.2 RECOMMENDED PC RS485 SERIAL PORT ADD-ONS ....................................... 20
2.10.4 ETHERNET PORT .......................................................................................................... 20
2.10.5 DSENET® (EXPANSION MODULES) ............................................................................. 21
2.11 SOUNDER .......................................................................................................................... 22
2.11.1 ADDING AN EXTERNAL SOUNDER ............................................................................. 22
2.12 ACCUMULATED INSTRUMENTATION ............................................................................ 22
2.13 DIMENSIONS AND MOUNTING ........................................................................................ 23
2.13.1 FIXING CLIPS ................................................................................................................. 24
2.13.2 CABLE TIE FIXING POINTS........................................................................................... 24
2.13.3 SILICON SEALING GASKET .......................................................................................... 25
2.13.3.1 FITTING THE GASKET ........................................................................................... 25
2.14 APPLICABLE STANDARDS ............................................................................................. 27
2.14.1 ENCLOSURE CLASSIFICATIONS ................................................................................. 29
2.14.1.1 IP CLASSIFICATIONS ............................................................................................. 29
2.14.1.2 NEMA CLASSIFICATIONS ...................................................................................... 30
3 INSTALLATION ................................................................................................. 31
3.1 USER CONNECTIONS .......................................................................................................... 31
3.2 CONNECTION DESCRIPTIONS ........................................................................................... 32
3.2.1 DC SUPPLY & OUTPUTS G TO L.................................................................................. 32
3.2.2 CONFIGURABLE DIGITAL INPUTS A TO I ................................................................... 32
3.2.3 CONFIGURABLE DIGITAL INPUTS T TO L & DSENET® ............................................. 33

Page 3 of 95 057-368 ISSUE: 1

 DSE335 MKII Operator Manual

3.2.4 CONFIGURABLE VOLT-FREE OUTPUTS E & F .......................................................... 33

3.2.5 LOAD SWITCHING AND S2 VOLTAGE SENSING ........................................................ 33
3.2.6 S1 VOLTAGE SENSING ................................................................................................. 34
3.2.7 CURRENT TRANSFORMERS ........................................................................................ 34
3.2.7.1 CT CONNECTIONS ................................................................................................. 35
3.2.8 CONFIGURABLE VOLT-FREE CHANGEOVER OUTPUTS C & D ............................... 36
3.2.9 RS485 .............................................................................................................................. 36
3.2.10 USB B PORT (PC CONFIGURATION) CONNECTOR................................................... 37
3.2.11 USB A PORT CONNECTOR .......................................................................................... 37
3.2.12 ETHERNET ..................................................................................................................... 38
3.3 TYPICAL SCHEMATIC DIAGRAM ........................................................................................ 39
3.3.1 3 PHASE 4 WIRE ............................................................................................................ 40
3.3.2 EARTH SYSTEMS .......................................................................................................... 41
3.3.2.1 NEGATIVE EARTH .................................................................................................. 41
3.3.2.2 POSITIVE EARTH ................................................................................................... 41
3.3.2.3 FLOATING EARTH .................................................................................................. 41
3.4 TYPICAL ARRANGEMENT OF DSENET® .......................................................................... 42
3.5 ALTERNATIVE TOPOLOGY SCHEMATIC DIAGRAMS ...................................................... 43
3.5.1 SINGLE PHASE 2 WIRE ................................................................................................. 43
3.5.2 2 PHASE (L1 & L2) 3 WIRE ............................................................................................ 44
3.5.3 2 PHASE (L1 & L3) 3 WIRE ............................................................................................ 45
3.5.4 3 PHASE 3 WIRE DELTA ............................................................................................... 46
3.5.5 3 PHASE 4 WIRE ............................................................................................................ 47
4 DESCRIPTION OF CONTROLS ........................................................................ 48
4.1 CONTROL PUSH-BUTTONS ................................................................................................ 50
4.2 VIEWING THE INSTRUMENT PAGES .................................................................................. 52
4.2.1 STATUS .......................................................................................................................... 53
4.2.2 S1 .................................................................................................................................... 54
4.2.3 S2 .................................................................................................................................... 55
4.2.4 MODULE ......................................................................................................................... 56
4.2.5 EXPANSION.................................................................................................................... 57
4.2.6 ALARMS .......................................................................................................................... 57
4.2.7 EVENT LOG .................................................................................................................... 58
4.2.8 SCHEDULE ..................................................................................................................... 59
4.2.9 ABOUT ............................................................................................................................ 60
4.3 VIEWING LATEST TRANSFER INFORMATION PAGE....................................................... 60
4.4 USER CONFIGURABLE INDICATORS ................................................................................ 61
5 OPERATION ...................................................................................................... 62
5.1 QUICKSTART GUIDE ............................................................................................................ 62
5.1.1 STARTING S2 ................................................................................................................. 62
5.1.2 STOPPING S2................................................................................................................. 63
5.2 START INHIBIT MODE .......................................................................................................... 64
5.3 MANUAL MODE .................................................................................................................... 64
5.3.1 STARTING SEQUENCE ................................................................................................. 64
5.3.2 S2 AVAILABLE ................................................................................................................ 65
5.3.3 STOPPING SEQUENCE ................................................................................................. 65
5.4 AUTOMATIC MODE .............................................................................................................. 66
5.4.1 WAITING IN AUTO MODE .............................................................................................. 66
5.4.2 STARTING SEQUENCE ................................................................................................. 66
5.4.3 S2 AVAILABLE ................................................................................................................ 67
5.4.4 STOPPING SEQUENCE ................................................................................................. 67
5.5 MODE SELECTION ............................................................................................................... 68
5.5.1 TEST ON LOAD .............................................................................................................. 68
5.5.1.1 STARTING SEQUENCE .......................................................................................... 68
5.5.1.2 S2 AVAILABLE ........................................................................................................ 68
5.5.1.3 STOPPING SEQUENCE ......................................................................................... 68
5.5.2 TEST OFF LOAD ............................................................................................................ 69
5.5.2.1 STARTING SEQUENCE .......................................................................................... 69
5.5.2.2 S2 AVAILABLE ........................................................................................................ 69

057-368 ISSUE: 1 Page 4 of 95

 DSE335 MKII Operator Manual

5.5.2.3 STOPPING SEQUENCE ......................................................................................... 69

5.5.3 PROHIBIT RETURN ....................................................................................................... 70
5.5.3.1 WAITING IN PROHIBIT RETURN ........................................................................... 70
5.5.3.2 STARTING SEQUENCE .......................................................................................... 70
5.5.3.3 S2 AVAILABLE ........................................................................................................ 71
5.5.3.4 STOPPING SEQUENCE ......................................................................................... 71
5.6 SCHEDULER ......................................................................................................................... 72
5.6.1 START INHIBIT MODE ................................................................................................... 72
5.6.2 MANUAL MODE .............................................................................................................. 72
5.6.3 AUTO MODE ................................................................................................................... 72
5.7 CHANGEOVER FUNCTIONALITY ........................................................................................ 73
5.7.1 OPEN TRANSITION WITHOUT CHECK SYNC ............................................................. 73
5.7.2 OPEN TRANSITION WITH CHECK SYNC .................................................................... 74
5.7.3 CLOSED TRANSITION WITH CHECK SYNC ................................................................ 75
5.7.4 MANUAL LOAD SHED INPUT ........................................................................................ 76
5.7.5 AUTOMATIC LOAD SHEDDING CONTROL .................................................................. 76
6 PROTECTIONS ................................................................................................. 77
6.1 ALARMS ................................................................................................................................ 77
6.2 INDICATIONS ........................................................................................................................ 78
6.3 WARNING ALARMS .............................................................................................................. 79
6.4 ELECTRICAL TRIP ALARMS ............................................................................................... 81
7 FRONT PANEL CONFIGURATION................................................................... 83
7.1 ACCESSING THE FRONT PANEL EDITOR ......................................................................... 84
7.1.1 ENTERING PIN ............................................................................................................... 84
7.1.2 EDITING A PARAMETER ............................................................................................... 85
7.1.3 EXITING THE MAIN CONFIGURATION EDITOR .......................................................... 85
7.1.4 MAIN CONFIGURATION EDITOR PARAMETERS ........................................................ 86
8 COMMISSIONING ............................................................................................. 87
9 FAULT FINDING ................................................................................................ 88
9.1 STARTING ............................................................................................................................. 88
9.2 LOADING ............................................................................................................................... 88
9.3 ALARMS ................................................................................................................................ 88
9.4 COMMUNICATIONS .............................................................................................................. 88
9.5 INSTRUMENTS ...................................................................................................................... 89
9.6 MISCELLANEOUS................................................................................................................. 89
10 MAINTENANCE, SPARES, REPAIR AND SERVICING ................................ 90
10.1 PURCHASING ADDITIONAL CONNECTOR PLUGS FROM DSE ................................... 90
10.1.1 PACK OF PLUGS ........................................................................................................... 90
10.1.2 INDIVIDUAL PLUGS ....................................................................................................... 90
10.2 PURCHASING ADDITIONAL FIXING CLIPS FROM DSE ................................................ 90
10.3 PURCHASING ADDITIONAL SEALING GASKET FROM DSE ....................................... 90
10.4 DSENET EXPANSION MODULES .................................................................................... 91
11 WARRANTY ................................................................................................... 92
12 DISPOSAL ...................................................................................................... 92
12.1 WEEE (WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT) ................................. 92

Page 5 of 95 057-368 ISSUE: 1

 Introduction

1 INTRODUCTION
This document details the installation and operation requirements of the DSE335 MKII module, part of
the DSEATS®range of products.

It is essential to keep this manual for the entire lifespan of the product. If the product is passed on or
supplied to another party, please ensure that this document is included for their reference.
This document is not considered a controlled document. Please note that updates to this document
are not automatically communicated. Any future updates to this document can be found on the DSE
website at www.deepseaelectronics.com.

The module has been designed to offer different levels of functionality on a shared platform. This
allows the original equipment manufacturer (OEM) to have greater flexibility in selecting the
appropriate controller for a specific application.

The module has been designed to allow the operator to control the transfer of the load from Source 1
(S1) to Source 2 (S2), typically the mains supply and a standby generator either manually (via fascia
mounted pushbuttons) or automatically upon S1 failure. Additionally, if configured, the module can
automatically start and stop the generator set (S2) based on the status of S1.

The user also has the ability to monitor the system's operating parameters and view them on the LCD
display. This allows for the observation of power supplies and indicates the operational status and any
fault conditions of the module.

The powerful ARM microprocessor contained within the module allows for incorporation of a range of
complex features:

• Text based LCD display

• True RMS Voltage
• Current and Power monitoring
• USB and RS485 Communications
• Fully configurable inputs for use as alarms or a range of different functions.
• Open and closed transition with Check sync option.
• Integral PLC to help provide customisation where required
• Data Logging

The DSE Configuration Suite PC Software allows alteration of selected operational sequences,
timers, alarms, and operational sequences. Additionally, the module’s integral front panel
configuration editor allows adjustment of this information.

Access to critical operational sequences and timers for use by qualified engineers, can be protected
by a security code. Module access can also be protected by PIN code. Selected parameters can be
changed from the module’s front panel.

The module is housed in a robust plastic case suitable for panel mounting. Connections to the module
are via locking plug and sockets.

Page 6 of 95 057-368 ISSUE: 1

 Introduction

1.1 CLARIFICATION OF NOTATION

Clarification of notation used within this publication.

Highlights an essential element of a procedure to ensure correctness.

NOTE:

Indicates a procedure or practice, which, if not strictly observed, could

CAUTION! result in damage or destruction of equipment.

Indicates a procedure or practice, which could result in injury to

WARNING! personnel or loss of life if not followed correctly.

1.2 GLOSSARY OF TERMS

Term Description
DSE335 MKII DSE335 MKII module/controller
ATS Automatic Transfer Switch.
An Automatic Transfer Switch is a type of transfer panel used with a diesel
generator to automatically switch between the mains and generator in the
event of a power failure.
CAN Controller Area Network.
Vehicle standard to allow digital devices to communicate to one another.
HMI Human Machine Interface.
A device that provides a control and visualisation interface between a human
and a process or machine.
LCD Liquid Crystal Display.
A flat-panel display or other electronically modulated optical device that uses
the light-modulating properties of liquid crystals combined with polarizers.
LED Light Emitting Diode.
A semiconductor device that emits light when an electric current passes
through it.
OEM Original Equipment Manufacturer.
A company that produces parts and equipment that may be used and
marketed by another manufacturer.
PCI Peripheral Component Interconnect.
A local computer bus for attaching hardware devices in a computer and is
part of the PCI Local Bus standard.
PIN PIN number.
A four digit number used to access the modules Main Front Panel
Configuration Editor.
PLC Programmable Logic Controller.
A programmable digital device used to create logic for a specific purpose.
RTD Resistance Temperature Detector.
A sensor whose resistance changes as its temperature changes. The
resistance increases as the temperature of the sensor increases.
SCADA Supervisory Control And Data Acquisition.
A system that operates with coded signals over communication channels to
provide control and monitoring of remote equipment
TCP Transmission Control Protocol.
An industry standard that defines how to establish and maintain a network
conversation via which application programs can exchange data.
USB Universal Serial Bus.
An industry standard that allows data exchange and delivery of power
between many various types of electronics.

Page 7 of 95 057-368 ISSUE: 1

 Introduction

1.3 BIBLIOGRAPHY
This document refers to, and is referred by the following DSE publications which are obtained from
the DSE website: www.deepseaelectronics.com or by contacting DSE technical support:
support@deepseaelectronics.com.

1.3.1 INSTALLATION INSTRUCTIONS

Installation instructions are supplied with the product in the box and are intended as a ‘quick start’
guide only.

DSE Part Description

053-032 DSE2548 LED Expansion Annunciator Installation Instructions
053-033 DSE2130 Input Expansion Installation Instructions
053-034 DSE2157 Output Expansion Installation Instructions
053-272 DSE335 MKII Installation Instructions

1.3.2 MANUALS

Product manuals are obtained from the DSE website: www.deepseaelectronics.com or by contacting
DSE technical support: support@deepseaelectronics.com.

DSE Part Description

N/A DSEGencomm (MODBUS protocol for DSE controllers)
057-082 DSE2130 Input Expansion Operator Manual
057-083 DSE2157 Output Expansion Operator Manual
057-084 DSE2548 Annunciator Expansion Operator Manual
057-151 DSE Configuration Suite PC Software Installation & Operation Manual
057-175 PLC Programming Guide For DSE Controllers
057-220 Options for Communications with DSE Controllers
057-312 DSEAssistant PC Software Manual
057-314 Advanced PLC Programming Guide for DSE Controllers
057-367 DSE335 MKII Configuration Suite PC Software Manual

057-368 ISSUE: 1 Page 8 of 95

 Introduction

1.3.3 TRAINING GUIDES

Training guides are provided as ‘hand-out’ sheets on specific subjects during training sessions and
contain specific information regarding to that subject.

DSE Part Description

056-005 Using CTs With DSE Products
056-006 Introduction to Comms
056-022 Switchgear Control
056-026 kVA, kW, kvar and Power Factor
056-030 Module PIN Codes
056-036 DSE Module Expansion
056-043 Sync Process
056-051 Sending DSEGencomm Control Keys
056-069 Firmware Update
056-075 Adding Language Files
056-076 Reading DSEGencomm Alarms
056-079 Reading DSEGencomm Status
056-080 MODBUS
056-082 Override Gencomm PLC Example
056-091 Equipotential Earth Bonding
056-092 Best Practices for Wiring Restive Sensors
056-095 Remote Start Input Functions
056-097 USB Earth Loops and Isolation
056-099 Digital Output to Digital Input Connection

1.3.4 THIRD PARTY DOCUMENTS

The following third party documents are also referred to:

Reference Description
IEEE Std C37.2-1996 IEEE Standard Electrical Power System Device
ISBN 1-55937-879-4 Function Numbers and Contact Designations. Institute of Electrical and
Electronics Engineers Inc
ISBN 0-7506-1147-2 Diesel Generator Handbook. L.L.J.Mahon
ISBN 0-9625949-3-8 On-Site Power Generation. EGSA Education Committee.

Page 9 of 95 057-368 ISSUE: 1

 Specification

2 SPECIFICATION
2.1 OPERATING TEMPERATURE
Module Specification
Operating Temperature -22 ºF to +158 ºF (-30 ºC to +70 ºC)
Storage Temperature -40 ºF to +185 ºF (-40 ºC to +85 ºC)

2.2 REQUIREMENTS FOR UL

Description Specification
Screw Terminal
• 4.5 lb-in (0.5 Nm)
Tightening Torque
• Terminals suitable for connection of conductor size 12 AWG to 26 AWG
(0.5 mm² to 2.0 mm²).
• Conductor protection must be provided in accordance with NFPA 70,
Article 240
• Low voltage circuits (35 V or less) must be supplied from the engine
Conductors
starting battery or an isolated secondary circuit.
• The communication, sensor, and/or battery derived circuit conductors
shall be separated and secured to maintain at least ¼ ” (6 mm)
separation from the generator and mains connected circuit conductors
unless all conductors are rated 600 V or greater.
• Must be connected through UL Listed or Recognized isolating current
Current Inputs
transformers with the secondary rating of 5 A maximum.
Communication
• Must be connected to communication circuits of UL Listed equipment
Circuits
• Suitable for use in type 1 Enclosure Type rating with surrounding air
temperature -22 ºF to +122 ºF (-30 ºC to +50 ºC)
• Suitable for pollution degree 3 environments when voltage sensing
Mounting
inputs do not exceed 300 V. When used to monitor voltages over 300 V,
a device is to be installed in an unventilated or filtered ventilation
enclosure to maintain a pollution degree 2 environment.
Maximum Operating
• 158 ºF (70 ºC)
Temperature
VTs • When using voltage transformers (VTs) they must be fitted to both S1
and S2 voltage sensing, have the same ratio from the primary to
secondary windings, and a 0° phase offset between the primary and
secondary windings.

057-368 ISSUE: 1 Page 10 of 95

 Specification

2.3 TERMINAL SPECIFICATION

NOTE: For purchasing additional connector plugs from DSE, refer to the section entitled
Maintenance, Spares, Repair And Servicing elsewhere in this document.

Description Specification
Two-part connector.
Male part fitted to module
Connection Type Female part supplied in module
packing case - Screw terminal,
rising clamp, no internal spring.
Minimum Cable Size 0.5 mm² (AWG 20)
Example showing cable entry and
Maximum Cable Size 2.5 mm² (AWG 13) screw terminals of a 10-way connector
Tightening Torque 0.5 Nm (4.5 lb-in)
Wire Strip Length 7 mm (9/32 ”)

2.4 POWER SUPPLY REQUIREMENTS

Description Specification
Minimum Supply Voltage 8 V continuous
Able to survive 0 V for 50 ms providing the supply was at least 10 V
Cranking Dropouts
before the dropout and recovers to 5V afterwards.
Maximum Supply Voltage 35 V continuous (60 V protection)
Reverse Polarity Protection -35 V continuous
Maximum Operating 216 mA at 24 V
Current 396 mA at 12 V

2.4.1 MODULE SUPPLY INSTRUMENTATION DISPLAY

Description Specification
0 V to 70 V DC
Range
Maximum continuous operating voltage of 35 V DC
Resolution 0.1 V
Accuracy 1% full scale (±0.7 V)

Page 11 of 95 057-368 ISSUE: 1

 Specification

2.5 S1 & S2 VOLTAGE / FREQUENCY SENSING

NOTE: When using voltage transformers (VTs) they must be fitted to both S1 and S2
sensing, have the same ratio from the primary to secondary windings, and a 0° phase offset
between the primary and secondary windings.

Description Specification
Measurement Type True RMS conversion
Sample Rate 10 kHz
Harmonics Up to 21st or better
Input Impedance 300 k ph-N
Phase To Neutral 15 V (minimum required for sensing frequency) to 415 V AC
(absolute maximum)
Suitable for 345 V AC nominal
(±20 % for under/overvoltage detection)
Phase To Phase 25 V (minimum required for sensing frequency) to 720 V AC
(absolute maximum)
Suitable for 600 V AC nominal
(±20 % for under/overvoltage detection)
Common Mode Offset From Earth 100 V AC (max)
Resolution 1V AC phase to neutral
2V AC phase to phase
Accuracy ±1% of full scale phase to neutral
±2% of full scale phase to phase
Minimum Frequency 3.5 Hz
Maximum Frequency 75.0 Hz
Frequency Resolution 0.1 Hz
Frequency Accuracy ±0.2 Hz

2.6 CURRENT SENSING

Description Specification
Measurement Type True RMS conversion
Sample Rate 10 kHz
Harmonics Up to 21st or better
Nominal CT Secondary Rating 1 A or 5 A
Maximum Continuous Current 5A
Overload Measurement 3 x Nominal Range setting
Absolute Maximum Overload 50 A for 0.2 second
40 A for 1 second
Burden 0.5 VA (0.02  current shunts)
Common Mode Offset ±2 V peak plant ground to CT common terminal
Resolution 25 mA
Accuracy ±1 % of Nominal (5 A) excluding CT error

057-368 ISSUE: 1 Page 12 of 95

 Specification

2.6.1 VA RATING OF THE CTS

NOTE: Details for 4 mm² cables are shown for reference only. The connectors on the DSE
modules are only suitable for cables up to 2.5 mm².

The VA burden of the module on the CTs is 0.5 VA. However, depending upon the type and length of
cabling between the CTs and the module, CTs with a greater VA rating than the module are required.

The distance between the CTs and the

measuring module should be
estimated and cross-referenced
against the chart opposite to find the
VA burden of the cable itself.

If the CTs are fitted within the

alternator top box, the star point
(common) of the CTs should be
connected to system ground (earth) as
close as possible to the CTs. This
minimises the length of cable used to
connect the CTs to the DSE module.

Example:
If 1.5 mm² cable is used and the
distance from the CT to the measuring
module is 20 m, then the burden of the
cable alone is approximately 15 VA.
As the burden of the DSE controller is
.5 VA, then a CT with a rating of at
least 15 VA + 0.5 VA = 15.5 VA must
be used. 0.5 VA, then a CT with a rating of at least 15 VA + 0.5 VA = 15.5 VA must be used. If 2.5
mm² cables are used over the same distance of 20 m, then the burden of the cable on the CT is
approximately 7 VA. CT’s required in this instance is at least 7.5 VA (7 + 0.5).

Page 13 of 95 057-368 ISSUE: 1

 Specification

2.6.2 CT POLARITY

NOTE: Take care to ensure correct polarity of the CT primary as shown above. If in doubt,
check with the CT supplier.

Take care to ensure the correct polarity of the CTs. Incorrect CT orientation leads to negative kW
readings when the set is supplying power. Take note that paper stick-on labels on CTs that show the
orientation are often incorrectly placed on the CT (!). It is more reliable to use the labelling in the case
moulding as an indicator to orientation (if available).

To assess orientation, it is recommended to activate the source in island mode (if generator is
applicable) and gradually load the source to approximately 10% of the specified rating. It is important
to verify that the DSE module displays positive kilowatt (kW) readings for each of the three individual
phases.

Labelled as p1, Labelled as p2,

k or K l or L

TO SUPPLY TO LOAD

POLARITY OF CT PRIMARY

2.6.3 CT PHASING

Take particular care that the CTs are connected to the correct phases. For instance, ensure that the
CT on phase 1 is connected to the terminal on the DSE module intended for connection to the CT for
phase 1.

Additionally ensure that the voltage sensing for phase 1 is actually connected to generator phase 1.
Incorrect connection of the phases as described above results in incorrect power factor (PF)
measurements, which in turn results in incorrect kW measurements.

One way to check for this is to make use of a single-phase load. Place the load on each phase in turn,
run the generator and ensure the kW value appears in the correct phase. For instance if the load is
connected to phase 3, ensure the kW figure appears in phase 3 display and not in the display for
phase 1 or 2.

2.6.4 CT CLASS

Ensure the correct CT type is chosen. For instance if the DSE module is providing overcurrent
protection, ensure the CT is capable of measuring the overload level required to be protected against,
and at the accuracy level required.

For instance, this may mean fitting a protection class CT (P10 type) to maintain high accuracy while
the CT is measuring overload currents.

Alternatively, if the DSE module is solely utilizing the CT for instrumentation purposes, such as when
the current protection feature is deactivated or the controller is not equipped with it, measurement
class CTs are suitable for implementation. Again, bear in mind the accuracy required. The DSE
module is accurate to better than 1% of the full-scale current reading. To maintain this accuracy fit
Class 0.5 or Class 1 CTs.
Check with the CT manufacturer for further advice on selecting the CTs.

057-368 ISSUE: 1 Page 14 of 95

 Specification

2.7 INPUTS

2.7.1 DIGITAL INPUTS

Description Specification
12 Configurable negative or positive switching inputs in banks of 3
Number
through PC Software
Arrangement Contact between input terminal and the module’s plant supply
negative or positive terminal.

Negative Switching Configuration

Description Specification
Arrangement Contact between input terminal and module supply negative
Closed Voltage Threshold Less than 3.2 V
Open Voltage Threshold Greater than 8.1 V
Maximum Input Voltage +60 V DC with respect to module negative terminal
Minimum Input Voltage -2 V DC with respect to module negative terminal.
Contact Wetting Current 6 mA ±1 mA
Open Circuit Voltage 12 V ±1 V

Positive Switching Configuration

Description Specification
Arrangement Contact between input terminal and module supply positive
Closed Voltage Threshold Greater than 8.1 V
Open Voltage Threshold Less than 3.2 V
Maximum Input Voltage +60 V DC with respect to module negative terminal
Minimum Input Voltage -2 V DC with respect to module negative terminal.
Contact Wetting Current 6 mA ±1 mA
Open Circuit Voltage 0 V ±1 V

Page 15 of 95 057-368 ISSUE: 1

 Specification

2.8 CONFIGURABLE VOLT FREE RELAY OUTPUTS

NOTE: For further details on configuring and controling different types of load switching
devices refer to DSE Publication: 056-022 Switchgear Control.

There are twelve outputs fitted to the controller.

2.8.1 CONFIGURABLE VOLT-FREE RELAY OUTPUTS A & E

Description Specification
Number 2
Type Fully configurable normally closed volt-free contacts.
DC Rating 5 A resistive at 30 V
AC Rating 8 A resistive at 250 V

2.8.2 CONFIGURABLE VOLT-FREE RELAY OUTPUTS OUTPUTS B & F

Description Specification
Number 2
Type Fully configurable normally open volt-free contacts.
DC Rating 5 A resistive at 30 V
AC Rating 8 A resistive at 250 V

2.8.3 CONFIGURABLE OUTPUTS VOLT-FREE RELAY OUTPUTS C & D

Description Specification
Number 2
Type Fully configurable volt-free changeover contacts.
DC Rating 5 A resistive at 30 V
AC Rating 8 A resistive at 250 V

2.8.4 CONFIGURABLE OUTPUTS G, H, I, J, K & L

Description Specification
Number 6
Type Fully configurable, supplied from DC positive terminal 2
Rating 2 A resistive at plant supply

057-368 ISSUE: 1 Page 16 of 95

 Specification

2.9 COMMUNICATION PORTS

Description Specification
Type B USB 2.0
USB B Port For connection to PC running DSE Configuration Suite
Max distance 5m (16 feet)
USB A Port
NOTE: The USB A port is not currently supported.
Type A USB 2.0.
RS485 Isolated
Serial port Data connection 2 wire + common
Half Duplex
Data direction control for Transmit (by s/w protocol)
Max Baud Rate 115200
External termination required (120 )
Max common mode offset 70 V (on board protection transorb)
Max distance 1.2 km (¾ mile)
Ethernet
NOTE: The Ethernet port is not currently supported.
Auto detecting 10/100 Mbit Ethernet port.
Non-isolated
Data connection 2 wire + common
Half Duplex
DSENet®
Data direction control for Transmit (by s/w protocol)
(Expansion
Baud Rate of 115 kbaud
Comms) Port
Internal termination fitted (120 )
Max common mode offset ±5 V
Max distance 1.2 km (¾ mile)

Page 17 of 95 057-368 ISSUE: 1

 Specification

2.10 COMMUNICATION PORT USAGE

2.10.1 USB B PORT (PC CONFIGURATION)

NOTE: DSE stock 2 m (6.5 feet) USB type A to type B cable, DSE Part Number: 016-125.
Alternatively, they are purchased from any PC or IT store.

NOTE: The DC supply must be connected to the module for configuration by PC.

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

The USB B port is provided to give a simple means of connection between a PC and the controller.
Using the DSE Configuration Suite Software, the operator is then able to control the module, starting
or stopping the generator, selecting operating modes, etc.

Additionally, the various operating parameters (such as output volts, oil pressure, etc.) of the remote
generator are available to be viewed or changed.

To connect a module to a PC by USB, the following items are required:

DSE335 MKII Controller

DSE Configuration Suite PC Software

(Available from www.deepseaelectronics.com).

USB cable Type A to Type B.

(This is the same cable as often used between a PC and a USB
printer)

DSE is able to supply this cable if required:

PC Configuration interface lead (USB type A – type B)
DSE Part No 016-125

2.10.2 USB A PORT

NOTE: The USB A port is not currently supported but is accessible in a future software
update.

057-368 ISSUE: 1 Page 18 of 95

 Specification

2.10.3 RS485 PORT

NOTE: For a single module to PC connection and distances up to 5 m (16 feet) the USB
connection method is more suitable and provides for a lower cost alternative to RS485 (which
is more suited to longer distance connections).

The RS485 port on the controller supports the MODBUS RTU protocol and is for connection to a
single MODBUS master device only.

The DSE MODBUS register table for the controller is available upon request from the DSE Technical
Support Department.

RS485 is used for point-to-point cable connection of more than one device (maximum 32 devices) and
allows for connection to PCs, PLCs, and Building Management Systems (to name just a few devices).

One advantage of the RS485 interface is the large distance specification (1.2 km when using Belden
9841 (or equivalent) cable. This allows for a large distance between the module and a PC running the
DSE Configuration Suite software. The operator is then able to control the module, starting or
stopping the engine, selecting operating modes, etc.

The various operating parameters (such as coolant temperature, oil pressure, etc.) of the remote
engine are viewed or changed.

Many PCs are not fitted with an internal RS485 serial port. DSE DOES NOT recommend the use of
USB to RS485 convertors but is able to recommend PC add-ons to provide the computer with an
RS485 port.

2.10.3.1 CABLE SPECIFICATION

NOTE: DSE recommend Belden 9841 (or equivalent) cable for RS485 communication. This
is rated to a maximum cable length of 1.2 km. DSE Stock Belden 9841 cable, DSE Part Number:
016-030.

Description Specification
Cable Type Two core screened and shielded twisted pair
120  impedance
Cable Characteristics
Low capacitance
Belden 9841
Recommended Cable
Belden 9271
1.2 km (¾ mile) when using Belden 9841 or direct equivalent.
Maximum Cable Length
600 m (656 yards) when using Belden 9271 or direct equivalent.
RS485 Topology “Daisy Chain” Bus with no stubs (spurs)
120 . Not fitted internally to module. Must be fitted externally to the
RS485 Termination
‘first’ and ‘last’ device on the RS485 link.

Page 19 of 95 057-368 ISSUE: 1

 Specification

2.10.3.2 RECOMMENDED PC RS485 SERIAL PORT ADD-ONS

NOTE: DSE have no business tie to Brainboxes. Over many years, our own engineers
have used these products and are happy to recommend them.

NOTE: For further details of setting up the devices below, refer to the manufacture whose
details are below.

Remember to check these parts are suitable for your PC. Consult your PC supplier for further advice.

Brainboxes PM154 PCMCIA RS485 card (for laptops PCs)

Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’

Brainboxes UC320 PCI Velocity RS485 card (for desktop PCs)

Set to ‘Half Duplex, Autogating” with ‘CTS True’ set to ‘enabled’

Brainboxes PX-324 PCI Express 1 Port RS422/485 (for desktop PCs)

Supplier:
Brainboxes
Tel: +44 (0)151 220 2500
Web: http://www.brainboxes.com
Email: sales@brainboxes.com

2.10.4 ETHERNET PORT

NOTE: The Ethernet port is not currently supported but is accessible in a future software
update.

057-368 ISSUE: 1 Page 20 of 95

 Specification

2.10.5 DSENET® (EXPANSION MODULES)

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

NOTE: As a termination resistor is internally fitted to the controller, the controller must be
the ‘first’ unit on the DSENet® link. A termination resistor MUST be fitted to the ‘last’ unit on
the DSENet® link. For connection details, refer to section entitled Typical Arrangement of
DSENet.

NOTE: DSE recommend Belden 9841 (or equivalent) cable for DSENet® communication.
This is rated to a maximum cable length of 1.2 km. DSE Stock Belden 9841 cable, DSE Part
Number: 016-030.

DSENet® is the interconnection cable between the host controller and the expansion module(s) and
must not be connected to any device other than DSE equipment designed for connection to the
DSENet®

Description Specification
Cable Type Two core screened and shielded twisted pair
120  impedance
Cable Characteristics
Low capacitance
Belden 9841
Recommended Cable
Belden 9271
1200 m (¾ mile) when using Belden 9841 or direct equivalent.
Maximum Cable Length
600 m (656 yards) when using Belden 9271 or direct equivalent.
DSENet® Topology “Daisy Chain” Bus with no stubs (spurs)
120 . Fitted internally to host controller. Must be fitted externally to the
DSENet® Termination
‘last’ expansion module.
Total 6 devices made up of DSE2130 (up to 2), DSE2157 (up to 2),
DSE2548 (up to 2).

Maximum Expansion This gives the possibility of:

Modules • Maximum 16 additional relay outputs (DSE2157)
• Maximum 16 additional LED indicators (DSE2548)
• Maximum 16 additional inputs (Are configured as either digital, or
resistive when using DSE2130).

Page 21 of 95 057-368 ISSUE: 1

 Specification

2.11 SOUNDER

NOTE: The unit does not come with an internal sounder, therefore an external sounder or
indicator must be installed if an audible indication is necessary.

2.11.1 ADDING AN EXTERNAL SOUNDER

Should an external alarm or indicator be required, this is achieved by using the DSE Configuration
Suite PC software to configure an auxiliary output for Audible Alarm, and by configuring an auxiliary
input for Alarm Mute (if required).

The audible alarm output activates and de-activates at the same time as the module’s internal
sounder. The Alarm mute input and internal Lamp Test / Alarm Mute button activate ‘in parallel’
with each other. Either signal mutes both the internal sounder and audible alarm output.

Example of configuration to achieve external sounder with external alarm mute button:

2.12 ACCUMULATED INSTRUMENTATION

NOTE: When an accumulated instrumentation value exceeds the maximum number as

listed below, the value is reset and begins counting from zero again.

Description Specification
Accumulated Power 999999 kWh / kvarh / kVAh

057-368 ISSUE: 1 Page 22 of 95

 Specification

2.13 DIMENSIONS AND MOUNTING

Parameter Specification
Panel Cutout 220 mm x 160 mm (8.66 ” x 6.30 ”)
Overall Size 245.0 mm x 183.5 mm x 50.5 mm (9.65 ” x 7.23 ” x 1.99 ”)
Case Material Polycarbonate
Keypad Material Silicone
Protection Category IP65 panel mounted with gasket. IP42 panel mounted with no gasket.
Weight 0.70 kg (1.54 lb)
Panel Mounting.
Mounting Type Base mounted to a vertical surface with connection terminals to the
rear.
Fixing Clip Torque 0.2 Nm

Page 23 of 95 057-368 ISSUE: 1

 Specification

2.13.1 FIXING CLIPS

NOTE: In conditions of excessive vibration, mount the module on suitable anti-vibration

mountings.

The module is held into the panel fascia using the supplied fixing clips.
• Withdraw the fixing clip screw (turn anticlockwise) until only the pointed end is protruding from
the clip.
• Insert the three ‘prongs’ of the fixing clip into the slots in the side of the module case.
• Pull the fixing clip backwards (towards the back of the module) ensuring all three prongs of
the clip are inside their allotted slots.
• Turn the fixing clip screws clockwise until they contact the panel fascia.
• Tighten the screws to a torque setting of 0.2 Nm to secure the module into the panel fascia.
Care must be taken not to over tighten the fixing clip screws.

Fixing clip fitted

to module Fixing clip

2.13.2 CABLE TIE FIXING POINTS

Integral cable tie fixing points are included on the rear of the module’s case to aid wiring. This
additionally provides strain relief to the cable loom by removing the weight of the loom from the screw
connectors, thus reducing the chance of future connection failures.
Care is to be taken not to over tighten the cable tie (for instance with cable tie tools) to prevent the risk
of damage to the module case.

Cable tie fixing point With cable and tie in place

057-368 ISSUE: 1 Page 24 of 95

 Specification

2.13.3 SILICON SEALING GASKET

The supplied silicon gasket provides improved sealing between module and the panel fascia.
The gasket is fitted to the module before installation into the panel fascia. The sealing gasket has
locating holes for the locating pins on the plastic housing.
Take care to ensure the gasket is correctly fitted to the module to maintain the integrity of the seal.

Gasket fitted
to module

Sealing gasket

2.13.3.1 FITTING THE GASKET

The gasket is secured in its position by locating pins and is installed in a single orientation.

• Locate the positioning pins on the

rear of the module.

Locating pin.

• Fit the gasket ensuring it sits flush

to the back of the module.

Gasket fitted.

Page 25 of 95 057-368 ISSUE: 1

 Specification

Fitting Example

• Poorly fitted gasket -The seal is trapped

behind the module and does not provide Gasket trapped.
ingress protection.

• Correctly fitted gasket -The gasket is flush to

the panel and provides ingress protection.

Gasket sitting
flush to the
panel.

057-368 ISSUE: 1 Page 26 of 95

 Specification

2.14 APPLICABLE STANDARDS

Standard Description
BS EN 60068-2-1
-30 C (-22 F)
(Minimum temperature)
BS EN 60068-2-2
+70 C (158 F)
(Maximum temperature)
BS EN 60068-2-6 Ten sweeps in each of three major axes.
(Vibration) 5 Hz to 8 Hz at +/-7.5 mm, 8 Hz to 500 Hz at 2 gn.
BS EN 60068-2-27
Three shocks in each of three major axes 15 gn in 11 ms.
(Shock)
BS EN 60068-2-30
Db Damp Heat Cyclic 20/55° C at 95% RH 48 Hours.
(Humidity)
BS EN 60068-2-78
Cab Damp Heat Static 40° C at 93% RH 48 Hours.
(Humidity)
BS EN 61010-1 Safety requirements for electrical equipment for measurement, control,
and laboratory use.
BS EN 61000-6-2 EMC Generic Immunity Standard (Industrial)
BS EN 61000-6-4 EMC Generic Emission Standard (Industrial)
BS EN 60529 IP65 (front of module when installed into the control panel with the
(Degrees of protection optional sealing gasket)
provided by enclosures) IP42 (front of module when installed into the control panel WITHOUT
being sealed to the panel)
UL508 12 (Front of module when installed into the control panel with the
NEMA rating supplied sealing gasket).
(Approximate) 2 (Front of module when installed into the control panel WITHOUT
being sealed to the panel)
IEEE C37.2 Under the scope of IEEE 37.2, function numbers can also be used to
(Standard Electrical represent functions in microprocessor devices and software programs.
Power System Device The controller is device number 11L-8000 (Multifunction device
Function Numbers and protecting Line (generator) –module).
Contact Designations)
As the module is configurable by the generator OEM, the functions
covered by the module vary. Under the module’s factory configuration,
the device numbers included within the module are :

2 – Time Delay Starting Or Closing Relay

3 – Checking Or Interlocking Relay
8 – Control Power Disconnecting Device
11 – Multifunction Device
23 – Temperature control device (USING EXPANSION MODULE)
26 – Apparatus thermal device (USING EXPANSION MODULE)
27AC – AC Undervoltage Relay
27DC – DC Undervoltage Relay
29 – Isolating Contactor Or Switch
30 – Annunciator Relay
37 – Undercurrent Or Underpower Relay (USING INTERNAL PLC
EDITOR)
42 – Running Circuit Breaker
44 – Unit sequence relay
48 – Incomplete Sequence Relay

Continued overleaf...

Page 27 of 95 057-368 ISSUE: 1

 Specification

Standard Description
IEEE C37.2 Continued…
(Standard Electrical
Power System Device 49 – Machine Or Transformer Thermal Relay (USING EXPANSION
Function Numbers and MODULE)
Contact Designations) 50 – Instantaneous Overcurrent Relay
52 – AC Circuit Breaker
55 – Power Factor Relay (USING INTERNAL PLC EDITOR)
59AC – AC Overvoltage Relay
59DC – DC Overvoltage Relay
62 – Time Delay Stopping Or Opening Relay
63 – Pressure Switch
71 – Level Switch
74 – Alarm Relay
78 – Phase-angle measuring relay
79 – Reclosing relay (USING INTERNAL PLC EDITOR)
81 – Frequency Relay
83 – Automatic Selective Control Or Transfer Relay
86 – Lockout Relay

In line with our policy of continual development, Deep Sea Electronics, reserve the right to change specification without notice.

057-368 ISSUE: 1 Page 28 of 95

 Specification

2.14.1 ENCLOSURE CLASSIFICATIONS

2.14.1.1 IP CLASSIFICATIONS

The modules specification under BS EN 60529 Degrees of protection provided by enclosures

IP65 (Front of module when module is installed into the control panel with the optional sealing gasket).
IP42 (front of module when module is installed into the control panel WITHOUT being sealed to the panel)

First Digit Second Digit

Protection against contact and ingress of solid objects Protection against ingress of water
0 No protection 0 No protection
1 Protected against ingress solid objects with a 1 Protection against dripping water falling vertically. No
diameter of more than 50 mm. No protection harmful effect must be produced (vertically falling drops).
against deliberate access, e.g., with a hand, but
large surfaces of the body are prevented from
approach.
2 Protected against penetration by solid objects with 2 Protection against dripping water falling vertically. There
a diameter of more than 12 mm. Fingers or similar must be no harmful effect when the equipment
objects prevented from approach. (enclosure) is tilted at an angle up to 15° from its normal
position (drops falling at an angle).
3 Protected against ingress of solid objects with a 3 Protection against water falling at any angle up to 60°
diameter of more than 2.5 mm. Tools, wires etc. from the vertical. There must be no harmful effect (spray
with a thickness of more than 2.5 mm are water).
prevented from approach.
4 Protected against ingress of solid objects with a 4 Protection against water splashed against the equipment
diameter of more than 1 mm. Tools, wires etc. with (enclosure) from any direction. There must be no harmful
a thickness of more than 1 mm are prevented from effect (splashing water).
approach.
5 Protected against harmful dust deposits. Ingress 5 Protection against water projected from a nozzle against
of dust is not totally prevented but the dust must the equipment (enclosure) from any direction. There
not enter in sufficient quantity to interface with must be no harmful effect (water jet).
satisfactory operation of the equipment. Complete
protection against contact.
6 Protection against ingress of dust (dust tight). 6 Protection against heavy seas or powerful water jets.
Complete protection against contact. Water must not enter the equipment (enclosure) in
harmful quantities (splashing over).

Page 29 of 95 057-368 ISSUE: 1

 Specification

2.14.1.2 NEMA CLASSIFICATIONS

NOTE: There is no direct equivalence between IP / NEMA ratings. IP figures shown are
approximate only.

12 (Front of module when module is installed into the control panel with the optional sealing gasket).
2 (Front of module when module is installed into the control panel WITHOUT being sealed to the panel)

1 Provides a degree of protection against contact with the enclosure equipment and against a limited amount of
falling dirt.
IP30
2 Provides a degree of protection against limited amounts of falling water and dirt.

IP31
3 Provides a degree of protection against windblown dust, rain, and sleet; undamaged by the formation of ice on the
enclosure.
IP64
3R Provides a degree of protection against rain and sleet:; undamaged by the formation of ice on the enclosure.

IP32
4 (X) Provides a degree of protection against splashing water, windblown dust and rain, hose directed water,
undamaged by the formation of ice on the enclosure. (Resist corrosion).
IP66
12/12K Provides a degree of protection against dust, falling dirt and dripping non-corrosive liquids.

IP65
13 Provides a degree of protection against dust and spraying of water, oil, and non-corrosive coolants.

IP65

057-368 ISSUE: 1 Page 30 of 95

 Installation

3 INSTALLATION
The module is designed to be mounted on the panel fascia. For dimension and mounting details, refer
to the section entitled Accumulated Instrumentation

NOTE: When an accumulated instrumentation value exceeds the maximum number as

listed below, the value is reset and begins counting from zero again.

Description Specification
Accumulated Power 999999 kWh / kvarh / kVAh

Page 31 of 95 057-368 ISSUE: 1

 Installation

Dimensions and Mounting elsewhere in this document.

3.1 USER CONNECTIONS

NOTE: Availability of some terminals depends upon module version.The Ethernet and
USB Host ports are currentlty unavailable with the current firmware release.

To aid user connection, icons are used on the rear of the module to help identify terminal functions.
An example of this is shown below.

Terminals Terminals Terminals Terminals USB Terminals

30 to 37 54 to 56 38 to 41 42 to 47 A Port 48 to 53

Ethernet
Port

Terminals Terminals UL Terminals Terminals USB

1 to 8 9 to 17 Ratings 18 to 24 25 to 29 B Port

057-368 ISSUE: 1 Page 32 of 95

 Installation

3.2 CONNECTION DESCRIPTIONS

3.2.1 DC SUPPLY & OUTPUTS G TO L

NOTE: For further details of module configuration, refer to DSE Publication: 057-237
DSE335 Configuration Suite Software Manual.

Pin Cable
Description Notes
No Size
DC Plant Supply Input 2.5 mm²
1 Connect to ground where applicable.
(Negative) AWG 13
DC Plant Supply Input 2.5 mm²
2 Supplies the module and DC Outputs G, H, I, J, K & L
(Positive) AWG 13
1.0 mm²
3 DC Output G Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18
1.0 mm²
4 DC Output H Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18
1.0 mm²
5 DC Output I Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18
1.0 mm²
6 DC Output J Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18
1.0 mm²
7 DC Output K Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18
1.0 mm²
8 DC Output L Plant Supply Positive from terminal 2. 2 Amp rated.
AWG 18

3.2.2 CONFIGURABLE DIGITAL INPUTS A TO I

Pin Cable
Description Notes
No Size
0.5 mm²
9 Configurable Digital Input A Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
10 Configurable Digital Input B Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
11 Configurable Digital Input C Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
12 Configurable Digital Input D Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
13 Configurable Digital Input E Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
14 Configurable Digital Input F Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
15 Configurable Digital Input G Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
16 Configurable Digital Input H Switch to negative or positive depending on configuration
AWG 20
0.5 mm²
17 Configurable Digital Input I Switch to negative or positive depending on configuration
AWG 20

Page 33 of 95 057-368 ISSUE: 1

 Installation

3.2.3 CONFIGURABLE DIGITAL INPUTS T TO L & DSENET®

NOTE: Terminal 24 is not used, do not connect.

Pin Cable
Description Notes
No Size
0.5 mm² Switch to negative or positive depending on
18 Configurable Digital Input J
AWG 20 configuration
0.5 mm² Switch to negative or positive depending on
19 Configurable Digital Input K
AWG 20 configuration
0.5 mm² Switch to negative or positive depending on
20 Configurable Digital Input L
AWG 20 configuration
0.5 mm²
21 DSENet® Expansion B Use only 120  RS485 approved cable
AWG 20
0.5 mm²
22 DSENet® Expansion A Use only 120  RS485 approved cable
AWG 20
0.5 mm²
23 DSENet® Expansion SCR Use only 120  RS485 approved cable
AWG 20

3.2.4 CONFIGURABLE VOLT-FREE OUTPUTS E & F

NOTE: Terminal 27 is not used, do not connect.

Pin Cable
Description Notes
No. Size
1.0 mm² Normally closed volt-free relay user configured (8 A
25
Normally Closed Volt-Free Output AWG 18 resistive at 250 V AC rated)
Relay E 1.0 mm² Normally closed volt-free relay user configured (8 A
26
AWG 18 resistive at 250 V AC rated)
1.0 mm² Normally open volt-free relay user configured (8 A
28
Normally Open Volt-Free Output AWG 18 resistive at 250 V AC rated)
Output Relay F 1.0 mm² Normally open volt-free relay user configured (8 A
29
AWG 18 resistive at 250 V AC rated)

3.2.5 LOAD SWITCHING AND S2 VOLTAGE SENSING

NOTE: The below table describes connections to a three phase, four wire S2 supply. For
alternative wiring topologies, please see the ALTERNATIVE AC TOPOLOGIES section of this
manual.

Pin Cable
Description Notes
No. Size
1.0 mm² Normally configured to control S1 contactor coil
30
AWG 18 (Recommend 10A fuse)
Normally Closed Output Relay A
1.0 mm²
31 Normally configured to control S1contactor coil
AWG 18
1.0 mm² Normally configured to control S2 contactor coil
32
AWG 18 (Recommend 10A fuse)
Normally Open Output Relay B
1.0 mm²
33 Normally configured to control S2 contactor coil
AWG 18
1.0 mm² Connect to S2 L1 (U) output (AC)
34 S2 L1 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
1.0 mm² Connect to S2 L2 (V) output (AC)
35 S2 L2 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
S2 1.0 mm² Connect to S2 L3 (W) output (AC)
36 S2 L3 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
1.0 mm²
37 S2 Neutral Input Connect to S2 Neutral terminal (AC)
AWG 18

057-368 ISSUE: 1 Page 34 of 95

 Installation

3.2.6 S1 VOLTAGE SENSING

NOTE: For details on alternative wirirng configurations, see section entitled Alternative
Topology Schematic Diagrams elsewhere in this document.

Pin Cable
Description Notes
No. Size
1.0 mm² Connect to S1 L1 (R) incoming supply (AC)
38 S1 L1 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
1.0 mm² Connect to S1 L1 (S) incoming supply (AC)
39 S1 L2 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
S1 1.0 mm² Connect to S1 L1 (T) incoming supply (AC)
40 S1 L3 Voltage Sensing Input
AWG 18 (Recommend 2A fuse)
1.0 mm²
41 S1 Neutral Input Connect to S1 N incoming supply (AC)
AWG 18

3.2.7 CURRENT TRANSFORMERS

WARNING!: Do not disconnect this plug when the CTs are carrying current.
Disconnection does open circuit the secondary of the C.T.’s and dangerous voltages may then
develop. Always ensure the CTs are not carrying current and the CTs are short circuit
connected before making or breaking connections to the module.

NOTE: The module has a burden of 0.5 VA on the CT. Ensure the CT is rated for the
burden of the controller, the cable length being used and any other equipment sharing the CT.
If in doubt, consult your CT supplier.

NOTE: Take care to ensure correct polarity of the CT primary as shown below. If in doubt,
consult with the CT supplier.

Pin Cable
Description Notes
No. Size
2.5 mm²
42 CT Secondary for Load L1 Connect to s1 secondary of L1 monitoring CT
AWG 13
2.5 mm²
43 CT Secondary for Load L2 Connect to s1 secondary of L2 monitoring CT
AWG 13
2.5 mm²
44 CT Secondary for Load L3 Connect to s1 secondary of L3 monitoring CT
AWG 13
45 DO NOT CONNECT DO NOT CONNECT
2.5 mm²
46 CT Common Common for CTs
AWG 13
47 DO NOT CONNECT DO NOT CONNECT

Page 35 of 95 057-368 ISSUE: 1

 Installation

3.2.7.1 CT CONNECTIONS

p1, k or K is the primary of the CT that ‘points’ towards the SUPPLY

p2, l or L is the primary of the CT that ‘points’ towards the LOAD

s1 is the secondary of the CT that connects to the DSE Module’s input for the CT measuring

s2 is the secondary of the CT that must be commoned with the s2 connections of all the other CTs
and connected to the CT common terminal of the module.

Labelled as p1, Labelled as p2,

k or K l or L

TO SUPPLY TO LOAD

POLARITY OF CT PRIMARY

057-368 ISSUE: 1 Page 36 of 95

 Installation

3.2.8 CONFIGURABLE VOLT-FREE CHANGEOVER OUTPUTS C & D

NOTE: For further details of module configuration, refer to DSE Publication: 057-237
DSE335 MKII Configuration Suite Software Manual.

Pin Cable
Description Notes
No. Size
1.0 mm²
48 Output C Normally Open
AWG 18
1.0 mm² Volts free relay change-over relay user configured (8A
49 Output C Common
AWG 18 resistive at 250V AC rated)
1.0 mm²
50 Output C Normally Closed
AWG 18
1.0 mm²
51 Output D Normally Open
AWG 18
1.0 mm² Volts free relay change-over relay user configured (8A
52 Output D Common
AWG 18 resistive at 250V AC rated)
1.0 mm²
53 Output D Normally Closed
AWG 18

3.2.9 RS485

NOTE: For further details of module configuration, refer to DSE Publication: 057-237
DSE335 MKII Configuration Suite PC Software Manual.

NOTE: A 120 Ω termination resistor must be fitted across terminals A and B if the DSE
module is the first or last device on the R485 link.

NOTE: Screened 120  impedance cable specified for use with RS485 must be used for
the RS485 link.
DSE stock and supply Belden cable 9841 which is a high quality 120  impedance cable
suitable for CAN use (DSE part number 016-030)

Pin Cable
Description Notes
No. Size
54 RS485 Port Screen Shield Use only 120  CAN or RS485 approved cable

RS485 0.5 mm² Connect to RXD+ and TXD+

55 RS485 Port B (+)
AWG 20 Use only 120  CAN or RS485 approved cable
0.5 mm² Connect to RXD+ and TXD+
56 RS485 Port A (-)
AWG 20 Use only 120  CAN or RS485 approved cable

Page 37 of 95 057-368 ISSUE: 1

 Installation

3.2.10 USB B PORT (PC CONFIGURATION) CONNECTOR

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite Software Manual.

NOTE: The USB connection cable between the PC and the module must not be extended
beyond 5m (16 feet). For distances over 6m, it is possible to use a third party USB extender.
Typically, they extend USB up to 50m (55 yards). The supply and support of this type of
equipment is outside the scope of Deep Sea Electronics PLC.

CAUTION!: Care must be taken not to overload the PCs USB system by connecting more
than the recommended number of USB devices to the PC. For further information, consult the
PC supplier.

Cable
Description Notes
Size

Socket for connection to PC with DSE 0.5 mm² This is a standard USB type
Configuration Suite Software AWG 20 A to type B connector.

3.2.11 USB A PORT CONNECTOR

NOTE: The USB A port is not currently supported but is accessible in a future software
update.

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

Storage
Description Notes
Size

Socket for connection to USB. N/A

057-368 ISSUE: 1 Page 38 of 95

 Installation

3.2.12 ETHERNET

NOTE: The Ethernet port is not currently supported but is accessible in a future software
update.

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

Cable
Description Notes
Size

Socket for connection to Ethernet

0.1 mm² This is a standard
used for point-to-point cable
AWG 26 Ethernet cable
connection.

Page 39 of 95 057-368 ISSUE: 1

 Installation

3.3 TYPICAL SCHEMATIC DIAGRAM

As every system has different requirements, these diagrams show only a typical system and do not
intend to show a complete system.

Genset manufacturers and panel builders may use these diagrams as a starting point; however
always refer to the completed system diagram provided by the system manufacturer for complete
wiring detail.

Further wiring suggestions are available in the following DSE publications, available at
www.deepseaelectronics.com to website members.

DSE Part Description

056-022 Switchgear Control (Training guide)
056-005 Using CTs With DSE Products
056-091 Equipotential Earth Bonding

057-368 ISSUE: 1 Page 40 of 95

 Installation

3.3.1 3 PHASE 4 WIRE

Page 41 of 95 057-368 ISSUE: 1

 Installation

3.3.2 EARTH SYSTEMS

3.3.2.1 NEGATIVE EARTH

The typical wiring diagrams located within this document show connections for a negative earth
system (the battery negative connects to Earth)

3.3.2.2 POSITIVE EARTH

When using a DSE module with a Positive Earth System (the battery positive connects to Earth), the
following points must be followed:

Follow the typical wiring diagram as normal for all sections EXCEPT the earth points
All points shown as Earth on the typical wiring diagram must connect to BATTERY NEGATIVE (not
earth).

3.3.2.3 FLOATING EARTH

Where neither the battery positive nor battery negative terminals are connected to earth the following
points must be followed

Follow the typical wiring diagram as normal for all sections EXCEPT the earth points
All points shown as Earth on the typical wiring diagram must connect to BATTERY NEGATIVE (not
earth).

057-368 ISSUE: 1 Page 42 of 95

 Installation

3.4 TYPICAL ARRANGEMENT OF DSENET®

Six (6) devices can be connected to the DSENet®, made up of the following devices :

Device Max Number Supported

DSE2130 Input Expansion 2
DSE2157 Relay Output Expansion 2
DSE2548 LED Expansion 2

For part numbers of the expansion modules and their documentation, see section 10.4 entitled
DSENet Expansion Modules.

Page 43 of 95 057-368 ISSUE: 1

 Installation

3.5 ALTERNATIVE TOPOLOGY SCHEMATIC DIAGRAMS

3.5.1 SINGLE PHASE 2 WIRE

057-368 ISSUE: 1 Page 44 of 95

 Installation

3.5.2 2 PHASE (L1 & L2) 3 WIRE

Page 45 of 95 057-368 ISSUE: 1

 Installation

3.5.3 2 PHASE (L1 & L3) 3 WIRE

057-368 ISSUE: 1 Page 46 of 95

 Installation

3.5.4 3 PHASE 3 WIRE DELTA

Page 47 of 95 057-368 ISSUE: 1

 Installation

3.5.5 3 PHASE 4 WIRE

057-368 ISSUE: 1 Page 48 of 95

 Description of Controls

4 DESCRIPTION OF CONTROLS

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

CAUTION: The module may instruct an engine start event due to external influences.
Therefore, it is possible for the engine to start at any time without warning. Prior to performing
any maintenance on the system, it is recommended that steps are taken to remove the battery
and isolate supplies.

Control of the module is via push buttons mounted on the front of the module with
Start Inhibit Mode , Manual Mode , Auto , Mode , Alarm Mute , Latest Transfer
Information , Close/Open S1 and Close/Open S2 functions. For normal operation, these
are the only controls which need to be operated. Details of their operation are provided later in this
document.

Menu navigation Main status and

buttons instrumentation display

Four configurable
LEDs

Open/Close S2
Open/Close S1 (manual mode only)
(manual mode only)

Latest Transfer
Information (Info)

Select Start
Inhibit mode

Select Manual Select Select mode: Test On Alarm Mute /

mode Auto mode Load, Test Off Load & Lamp Test
Prohibit Return modes

Page 49 of 95 057-368 ISSUE: 1

 Description of Controls

S2 status LED.
S1 status LED.
Illuminated when S2 is
Illuminated when S1 is
supplying the load.
supplying the load.

S1 available LED. S2 available LED.

Illuminated when the S1 is within Illuminated when the S2 is within
limits and able to take load. limits and able to take load.

057-368 ISSUE: 1 Page 50 of 95

 Description of Controls

4.1 CONTROL PUSH-BUTTONS

Icon Description
Start Inhibit Mode
This button places the module into its Start Inhibit Mode . This clears any
alarm conditions for which the triggering criteria have been removed. If a source
is on load and the module is placed into Start Inhibit Mode , the module
automatically instructs the changeover device to transfer from the Standby
source to the Prioirty source.
If a Remote Start signal is present while operating in this mode, the remote start
does not occur.

Manual Mode
This button places the module into its Manual Mode to allow manual control
of the ATS functions. This starts S2 when configured as a generator and runs it
off load.

For further details, please see section entitled Manual Mode elsewhere in this
document.

Auto Mode
This button places the module into its Auto Mode . This mode allows the
module to control the function of S1 and S2 automatically. The module monitors
the remote start input and S1 supply status and once a start request is made, a
start request is given to S2 if configured to a generator and once available,
placed on load.
Upon removal of the starting signal, the module automatically transfers the load
from S2 and remove the start signal to the generator observing the return delay
timer and cooling timer as necessary. The module then waits for the next start
event.
For further details, please see section entitled Automatic Mode elsewhere in this
document.

Mode
This button allows the user to cycle through different operating modes.
Pressing the Tick button accepts the mode change.

The modes available are:

Test On Load: This mode allows the module to start and load S2 for test
purposes.

Test Off Load: This mode allows the module to start S2 and leave off load for
test purposes.

Prohibit Return: This mode is used to prevent the module from returning load the
S1 until instructed.

For further details, please see section entitled Mode Selection elsewhere in this
document.

Page 51 of 95 057-368 ISSUE: 1

 Description of Controls

Icon Description
Mute / Lamp Test

This button silences the audible alarm if it is sounding and illuminates all of the
LEDs as a lamp test feature.

Latest Transfer Information

Whilst pressing this button, the module displays the reason, time, date, and
duration for the latest transfer that occurred, holding this button cycles between
the last S1 transfer and the last S2 transfer.

For further details, please see section entitled Viewing Latest Transfer
Information Page elsewhere in this document.
Close / Open to S1

NOTE: This button only operates in manual mode.

Pressing the Close / Open S1 button when S1 is on load, opens the S1 load
switch.
Pressing the Close / Open S1 button when S2 is on load and S1 is healthy,
the S2 load switch opens, wait for the duration of the transfer delay, then closes
the S1 load switch.

For further details, please see section entitled Manual Mode elsewhere in this
document.

Close/Open to S2

NOTE: This button only operates in manual mode.

Pressing the Close / Open S2 button when S2 is on load, opens the S2 load
switch.
Pressing the Close / Open S2 button when S1 is on load and S2 is healthy,
the S1 load switch opens, wait for the duration of the transfer delay, then closes
the S2 load switch.

For further details, please see section entitled Manual Mode elsewhere in this
document.

Menu navigation

Used for navigating the instrumentation, event log and configuration screens.

057-368 ISSUE: 1 Page 52 of 95

 Description of Controls

4.2 VIEWING THE INSTRUMENT PAGES

NOTE: Depending upon the module’s configuration, some display screens may be
disabled. For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

It is possible to scroll to display the different pages of information by repeatedly operating the Next /

Previous page buttons .

If you want to view one of the
instrument pages towards the
end of the list, it may be quicker
to scroll left through the pages
rather than right!
Example

Further presses of the Next Page Button

Status S1 S2
returns the display to the Status page.

The complete order and contents of each information page are given in the following sections
Once selected the page remains on the LCD display until the user selects a different page, or after an
extended period of inactivity (LCD Page Timer), the module reverts to the status display.
If no buttons are pressed upon entering an instrumentation page, the instruments are displayed
automatically subject to the setting of the LCD Scroll Timer.
The LCD Page and LCD Scroll timers are configurable using the DSE Configuration Suite Software or
by using the Front Panel Editor.

The screenshot shows the factory

settings for the timers, taken from
the DSE Configuration Suite
Software.

Alternatively, to scroll manually

through all instruments on the

currently selected page, press the scroll buttons. The ‘autoscroll’ is disabled.

If you want to view one of the

instruments towards the end of the list,
it may be quicker to scroll up through
the instruments rather than down!

To re-enable ‘autoscroll’ press the scroll buttons to scroll to the ‘title’ of the instrumentation
page (i.e. S1). A short time later (the duration of the LCD Scroll Timer), the instrumentation display
begins to autoscroll.

When scrolling manually, the display automatically returns to the Status page if no buttons are
pressed for the duration of the configurable LCD Page Timer.
If an alarm becomes active while viewing the status page, the display shows the Alarms page to draw
the operator’s attention to the alarm condition.

Page 53 of 95 057-368 ISSUE: 1

 Description of Controls

4.2.1 STATUS

NOTE: Press the Instrumentation Scroll buttons on the Status Page to view other
Configurable Status Screens if configured. For further details of module configuration, refer to
DSE Publication: 057-367 DSE335 MKII Configuration Suite PC Software Manual.

This is the ‘home’ page, which is displayed when no other page has been selected, and the page that
is automatically displayed after a period of inactivity (LCD Page Timer) of the module control buttons.

Contains summary information of both supplies along with different module status display.

• Main Summary (Backup source)

• Main Summary (Primary source)
• Source supply summary
• Supervisors summary
• Monitors summary

This page changes with the action of the controller, when S1 is on load, S1 parameters are seen and
when changing to S2 on load, the S2 parameters are shown.

No Start Request Example of the main summary screen showing no start request to
S1 Closed S2 and S1 closed supplying the load.
L-N 230V 40A
L-L 400V 50.0Hz

S2 Available Example screen showing S2 on load.

S2 Closed
L-N 229V 40A
L-L 399V 50.1Hz

S1 250A Example screen showing source supply summary.This screen

230V 50.1Hz provides information on the voltage, current, and frequency of
S2 125A each source.
229V 50Hz

Start Inhibit 10:52 Example screen displaying supervisor summary. This screen
S1 Failed provides information on the state of the two sources, the start and
No Start Request return delays, and start and stop requests.
S1 Failed to Close

Start Inhibit 10:52 Example screen displaying monitor summary. This screen provides
Offline information on the state of the two sources, e.g. whether the
Failed source is offline etc.
S2 Failed to Open

057-368 ISSUE: 1 Page 54 of 95

 Description of Controls

4.2.2 S1

NOTE: Press the Instrumentation Scroll buttons on the S1 Page to view other
Configurable S1 Screens if configured. For further details of module configuration, refer to
DSE Publication: 057-367 DSE335 MKII Configuration Suite PC Software Manual.

Contains electrical values of S1 measured or derived from the module’s voltage and current inputs.

• S1 Setup

S1 Setup Example of the S1 Setup screen. The primary source for power
has been designated as S1, which has been connected to the
Mains mains.
Primary Source

• S1 State

S1 State Example of the S1 State screen. S1 has currently failed due to

S1 Failed Under Voltage.
Failed
Under Voltage

• S1 Summary
• S1 Voltage (ph-N)
• S1 Voltage (ph-ph)
• S1 Frequency
• S1 Phase Sequence
• S1 Load (ph-N kW)
• S1 Load (Total kW)
• S1 Load (ph-N kV A)
• S1 Load (Total kV A)
• S1 Power Factor
• S1 Power Factor Average
• S1 Load (ph-N kvar)
• S1 Load (Total kvar)
• S1 Load (kW h, kV A h, kvar h)

Page 55 of 95 057-368 ISSUE: 1

 Description of Controls

4.2.3 S2

NOTE: Press the Instrumentation Scroll buttons on the S1 Page to view other
Configurable S2 Screens if configured. For further details of module configuration, refer to
DSE Publication: 057-367 DSE335 MKII Configuration Suite PC Software Manual.

Contains electrical values of S2 measured or derived from the module’s voltage and current inputs.

• S2 Setup

S2 Setup Example of the S1 Setup screen. The primary source for power is
S1, which has been designated to mains.
Mains
Primary Source

• S1 State

S2 State Example of the S1 State screen. S1 has currently failed due to

S1 Failed Under Voltage.
Failed
Under Voltage

• S2 Summary
• S2 Voltage (ph-N)
• S2 Voltage (ph-ph)
• S2 Frequency
• S2 Phase Sequence
• S2 Load (ph-N kW)
• S2 Load (Total kW)
• S2 Load (ph-N kV A)
• S2 Load (Total kV A)
• S2 Power Factor
• S2 Power Factor Average
• S2 Load (ph-N kvar)
• S2 Load (Total kvar)
• S2 Load (kW h, kV A h, kvar h)
• Load Control

057-368 ISSUE: 1 Page 56 of 95

 Description of Controls

4.2.4 MODULE

NOTE: Press the Instrumentation Scroll buttons on the S1 Page to view other
Configurable S2 Screens if configured. For further details of module configuration, refer to
DSE Publication: 057-367 DSE335 MKII Configuration Suite PC Software Manual.

Provides information on primary and secondary sources and their definitions.

S1 S1 source type and priority.

Mains
Primary Source

S2 S2 source type and prioirity.

Generator
Backup Source

Current Date and Time Current date and time.

14 Jan 2024,13:24:55

Battery Voltage Battery voltage.

Battery 21.4 v

Page 57 of 95 057-368 ISSUE: 1

 Description of Controls

4.2.5 EXPANSION

NOTE: Depending upon the module’s configuration, some display screens may be
disabled. For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

Contains measured values from various input expansion modules that are connected to the DSE
module.

Press the Instrumentation Scroll buttons scroll through the Expansion parameters if
configured.

Oil Temperature

80 °C
176 °F
DSE2130 Analogue Inputs (Only appears if configured)
DSE2157 Analogue Inputs (Only appears if configured)
DSE2548 Analogue Inputs (Only appears if configured)

4.2.6 ALARMS

When an alarm is active, the LCD display jumps from the ‘Information page’ to display the Alarm Page
and the Common Alarm output if configured, activates.

Number of active alarms. This is

1/2 Alarms alarm 1 of a total of 2 active alarms

S1 Failed
The cause of alarm, e.g. Unlatched
Unlatched
Warning
The type of alarm, e.g. Warning

The LCD displays multiple alarms such as “Failed to Close” etc. These automatically scroll in the

order that they occurred or press the Instrumentation Scroll buttons to scroll through
manually.

In the event of an alarm, the LCD displays the appropriate text. If an additional alarm then occurs, the
module displays the appropriate text.

Example:

1/2 Alarms 2/2 Alarms

S1 Failed S1 Failed to Close
Unlatched Start Inhibit: Failed to Close
Warning Warning

057-368 ISSUE: 1 Page 58 of 95

 Description of Controls

4.2.7 EVENT LOG

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

The module maintains a log of past alarms and/or selected status changes.
The log size has been increased in the module over past module updates and is always subject to
change. At the time of writing, the modules log is capable of storing the last 250 log entries.

Under default factory settings, the event log is configured to include all possible options; however, this
is configurable by the system designer using the DSE Configuration Suite software.

Example showing the

possible configuration of the
modules event log (DSE
Configuration Suite Software)
This also shows the factory
settings of the module.

When the event log is full, any subsequent event overwrites the oldest entry. Hence, the event log
always contains the most recent events. The module logs the event type, along with the date and time
(or engine running hours if configured to do so).

To view the event log, repeatedly press the next page button until the LCD screen displays the
Event log :

1 Event log 11:33

This is event 1. S1 Failure
Warning
23 Mar 2014, 08:25:46

Press the Scroll Down button to view the next most recent event.

Continuing to press the Scroll Down button cycles through the past events after which, the
display shows the most recent alarm, and the cycle begins again.

To exit the event log and return to viewing the instruments, press the Next or Previous Page
buttons to select the next instrumentation page.

Page 59 of 95 057-368 ISSUE: 1

 Description of Controls

4.2.8 SCHEDULE

NOTE: For further details on the operation of the inbuilt scheduler feature, refer to section
entitled Scheduler in the Operation section of this document.

NOTE: For further details of module configuration, refer to DSE Publication: 057-367
DSE335 MKII Configuration Suite PC Software Manual.

The controller contains an inbuilt exercise run scheduler, capable of automatically starting and
stopping the set or inhibiting the set from starting. Up to 16 scheduled (in two banks of 8)
start/stop/inhibiting start sequences may be configured to repeat on a 7-day or 28-day cycle.

Scheduled runs may be on load or off load depending upon module configuration.

This section of the module’s display shows how exactly the scheduler (if enabled) is configured.
Under default factory settings the Schedule is not viewable. It is enabled by the system designer using
the DSE Configuration Suite software.

Indicates which bank

and schedule entry is
being displayed. Indicates if the scheduled
action occurs weekly or
1:7 Schedule 11:33 only during a specific
Indicates the type of the week in a month.
Do Not Transfer Weekly
scheduled action which
could be Do Not On 12:30 Run Time 01:00
transfer,Off Load or M T W T F S Indicates the duration of
Transfer. the scheduled action.

Indicates the start time Indicates day of the week

of the scheduled action. for the scheduled action.

057-368 ISSUE: 1 Page 60 of 95

 Description of Controls

4.2.9 ABOUT

Contains important information about the module and the firmware versions. This information may be
asked for when contacting DSE Technical Support Department for advice.

About • Variant – 335

Variant 335 • Application Version – The version of the module’s main
Application V1.0.7 firmware file (Updatable using the Firmware Update
USB ID 12CC340F8 Wizard in the DSE Configuration Suite Software).
• USB ID – Unique identifier for PC USB connection

Press to access more information about the module.

About

Bootloader V1.2.12 • Bootloader - Firmware Update bootloader software version

4.3 VIEWING LATEST TRANSFER INFORMATION PAGE

It is possible to view the reason, time, date, and duration of the latest transfer by pressing and holding
the Latest Transfer Information . Holding this button cycles between the last S1 transfer and the
last S2 transfer.

S1 Latest Transfer 16:53 Example of the Latest Transfer page which shows that there
S2 Under Voltage was a transfer cause by an S1 Under Voltage failure which
22 Oct 2014, 12:59:47 lasted for 27 minutes and 13 seconds.
00:27:13

Page 61 of 95 057-368 ISSUE: 1

 Description of Controls

4.4 USER CONFIGURABLE INDICATORS

These LEDs are capable of being configured by the user to indicate any one of 100+ different functions
based around the following:

• Indications - Monitoring of a digital input and indicating associated functioning user’s equipment -
Such as Battery Charger On or Louvres Open, etc.

• Warning & Electrical Trips - Specific indication of a particular warning or electrical trip condition,
backed up by LCD indication - Such as S2 Under Voltage Trip, Transformer Over Temperature, etc.

• Status Indications - Indication of specific functions or sequences derived from the modules operating
state - Such as, Panel Locked, S2 Available, etc.

User configurable LEDs

057-368 ISSUE: 1 Page 62 of 95

 Operation

5 OPERATION

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

5.1 QUICKSTART GUIDE

This section provides a quick start guide to the module’s operation.

5.1.1 STARTING S2

NOTE: This only applies when S2 is configured as a generator supply.

…when S2 becomes
available, press the
S2 Breaker button to
transfer the load.

First, select Manual

Mode , this gives
the start request to
the external
generator control.

Page 63 of 95 057-368 ISSUE: 1

 Operation

5.1.2 STOPPING S2

NOTE: This only applies when S2 is configured as a generator supply.

Select Start Inhibit Mode S2 breaker is

opened, and the start request is removed
from S2. The load transfers to the priority
source (if set as S1) and close the breaker
on that source.

057-368 ISSUE: 1 Page 64 of 95

 Operation

5.2 START INHIBIT MODE

NOTE: If a digital input configured to Panel Lock is active, changing module modes is not
possible. Viewing the instruments and event logs is NOT affected by panel lock.

Start Inhibit Mode is activated by pressing the Start Inhibit Mode button.
The LED above the Start Inhibit Mode button illuminates to indicate Start Inhibit Mode
operation.

In Start Inhibit Mode , the module removes S2 or S1 from load (whichever is set as a priority)
and removes the start signal given to the generator controller (if S2 is configured as a generator and it
is running).
A S2 start request is initiated if it is set up as a generator regardless of S1's configuration. However,
there is no need for a Start Request for S1 if it is configured as a generator, as S1 functions as a
priority source and is anticipated to operate seamlessly without necessitating a start request.
If S2 is configured as a generator and it does not stop after the cooling down time, the Fail To Stop
alarm is activated (subject to the Fail To Stop timer being enabled and its duration). To detect the
generator (S2) is at rest the following must occur:

• S2 Frequency must be zero

• S2 Voltage must be zero

Any latched alarms that have been cleared are reset when Start Inhibit Mode is entered.

The standby source is not placed on load (or started if configured as a generator) when in Start
Inhibit Mode . If remote start signals are given, the input is ignored until Auto Mode is
entered.

5.3 MANUAL MODE

NOTE: If a digital input configured to Panel Lock is active, changing module modes is not
possible. Viewing the instruments and event logs is NOT affected by panel lock.

Manual Mode is activated by pressing the Manual Mode button.

In Manual Mode , the module actives an output to give a start signal to an external generator
controller (if S2 is configured as a generator supply), and if required, change the state of the load
switching devices. An LED indicator beside the button confirms this action.

5.3.1 STARTING SEQUENCE

NOTE: There is no start delay in this mode of operation.

As soon as the Manual Mode button is pressed, the output to give a start signal to an external
generator controller is activated (if S2 is configured as a generator)

If the generator fails to start during the ‘S2 Fail Delay’ timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved loading voltage and frequency (if configured as a generator).

Page 65 of 95 057-368 ISSUE: 1

 Operation

5.3.2 S2 AVAILABLE

NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.

In Manual Mode , the load is not transferred to S2 unless a ‘loading request’ is made and the S2
supply is within limits (if configured as a mains supply) or achieve Loading Voltage and Loading
Frequency (if configured as a generator).
A loading request may originate from various sources.
• Pressing the Close/Open S2 button
• S1 supply out of limits
• Activation of an auxiliary input that has been configured to remote start on load
• Activation of the inbuilt exercise scheduler if configured for ‘on load’ runs.

As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section entitled Error! Reference source not found. elsewhere in this document.

Once the load has been transferred to S2, it is not automatically transferred back to the S1 supply. To
manually transfer the load back to the mains either:

• Pressing the Close/Open S1 button

• Pressing the Auto Mode button to return to automatic mode.
• Pressing the Start Inhibit Mode button to return to start inhibit mode.

For further details of breaker control, see the section entitled Error! Reference source not found.
elsewhere in this document.

5.3.3 STOPPING SEQUENCE

In manual mode, S2 continues to run until either:

• Pressing the Start Inhibit Mode button to return to start inhibit mode.
• Pressing the Auto Mode button to return to automatic mode.

057-368 ISSUE: 1 Page 66 of 95

 Operation

5.4 AUTOMATIC MODE

NOTE: If a digital input configured to Panel Lock is active, changing module modes is not
possible. Viewing the instruments and event logs is NOT affected by panel lock.

Auto mode is activated by pressing the Auto Mode button.

In Auto Mode mode, the module operates fully automatically, changing between the two supplies
in case of failure without user intervention. An LED indicator beside the button confirms this action.

5.4.1 WAITING IN AUTO MODE

If a starting/loading request is made, the starting sequence begins.

Starting/loading requests may originate from the following sources:

• S1 supply out of limits

• Activation of an auxiliary input that has been configured to remote start on load or remote
start off load.
• Activation of the inbuilt exercise scheduler.
• Instruction from external remote telemetry devices using the RS485 interface

5.4.2 STARTING SEQUENCE

To allow for ‘false’ start/load requests such as S1 brownouts, the Start Delay timer begins. There are
individual start delay timers for each of the different start/load request types.

When all start/load requests are removed during the Start Delay timer, the unit returns to a stand-by
state.

If a start/load request is still present at the end of the Start Delay timer, an output to give a start signal
to an external generator controller is activated (if S2 is configured as a generator).

If the generator fails to start during the ‘S2 Fail Delay’ timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved Loading Voltage and Loading Frequency (if configured as a generator).

If a start/load request is currently in place but the starting sequence has not yet commenced, it is
possible that there is an active input configured for Auto Start Inhibit.

Page 67 of 95 057-368 ISSUE: 1

 Operation

5.4.3 S2 AVAILABLE

In Auto Mode mode, the load is automatically transferred to S2 when it is within limits (if
configured as a mains supply) or achieve loading voltage and frequency (if configured as a
generator).

If a start/load request is detected but S2 fails to go on load, it is possible that there is an active input
configured for S2 Load Inhibit.

A loading request may originate from a number of sources.

• S1 supply out of limits

• Activation of an auxiliary input that has been configured to remote start on load
• Activation of the inbuilt exercise scheduler if configured for ‘on load’ runs.

NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.

As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section entitled Error! Reference source not found. elsewhere in this document.

If all start/load requests are removed, the stopping sequence begins.

5.4.4 STOPPING SEQUENCE

The Return Delay timer operates to ensure that the start/load request has been permanently removed
and isn’t just a short term removal. In case another start request is made during the Return Delay (or
cooling down period when S2 is configured as a generator), the set returns on load.

If there are no starting requests at the end of the Return Delay timer, the load is transferred back from
the S2 to the S1 supply, and the Cooling timer is initiated (when S2 is configured as a generator).

The Cooling timer allows S2 (when configured as a generator) to run off load and cool sufficiently
before the start signal to the external generator control unit is removed. This is particularly important
where turbo chargers are fitted to the engine.

After the Cooling timer has expired, the start signal given to the external generator controller is
removed..

057-368 ISSUE: 1 Page 68 of 95

 Operation

5.5 MODE SELECTION

NOTE: If a digital input configured to Panel Lock is active, changing module modes is not
possible. Viewing the instruments and event logs is NOT affected by panel lock.

Pressing the Mode button sets which of the three modes below to leave the controller in.

5.5.1 TEST ON LOAD

Activate by pressing the Mode button repeatedly until Test on Load is shown on the display, then
press the Tick button to confirm the change. An LED indicator beside the button confirms this
action.

The Test on Load mode starts S2 (if configured as a generator) and transfers the load to S2.

5.5.1.1 STARTING SEQUENCE

As soon as the Mode is selected and confirmed by pressing the Tick button is pressed, the
output to give a start signal to an external generator controller is activated (if S2 is configured as a
generator)

If the generator fails to start during the ‘S2 Fail Delay’ timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved Loading Voltage and Loading Frequency (if configured as a generator).

5.5.1.2 S2 AVAILABLE

In Test on Load mode, the load is automatically transferred to S2 when it is within limits (if configured
as a mains supply) or had achieved loading voltage and frequency (if configured as a generator).

If a start/load request is detected but S2 fails to go on load, it is possible that there is an active input
configured for S2 Load Inhibit.

NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.

As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section Error! Reference source not found. elsewhere in this document.

5.5.1.3 STOPPING SEQUENCE

In Test on Load mode, S2 continues to run on load until either:

• Pressing the Start Inhibit Mode button to return to Start Inhibit mode.
• Pressing the Auto Mode button to return to automatic mode.

Page 69 of 95 057-368 ISSUE: 1

 Operation

5.5.2 TEST OFF LOAD

Activate by pressing the Mode button repeatedly until Test off Load is shown on the display, then
press the Tick button to confirm the change. An LED indicator beside the button confirms this
action.

The Test off Load mode only starts S2 (if configured as a generator) and leave it off load.

5.5.2.1 STARTING SEQUENCE

As soon as the Mode is selected and confirmed by pressing the Tick button is pressed, the
output to give a start signal to an external generator controller is activated (if S2 is configured as a
generator)

If the generator fails to start during the S2 Fail Delay timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved Loading Voltage and Loading Frequency (if configured as a generator).

5.5.2.2 S2 AVAILABLE

In Test Off Load mode, the load is not transferred to S2 unless a ‘loading request’ is made and the S2
supply is within limits (if configured as a mains supply) or has achieved loading voltage and frequency
(if configured as a generator).
A loading request may originate from a number of sources.

• S1 supply out of limits

• Activation of an auxiliary input that has been configured to remote start on load
• Activation of the inbuilt exercise scheduler if configured for ‘on load’ runs.

NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.

As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section Error! Reference source not found. elsewhere in this document.

5.5.2.3 STOPPING SEQUENCE

In Test off Load mode, S2 continues to run on load until either:

• Pressing the Start Inhibit Mode button to return to Start Inhibit mode.
• Pressing the Auto Mode button to return to Automatic mode.

057-368 ISSUE: 1 Page 70 of 95

 Operation

5.5.3 PROHIBIT RETURN

Activate by pressing the Mode button repeatedly until Prohibit Return is shown on the display,
then press the Tick button to confirm the change. An LED indicator beside the button confirms
this action.

The Prohibit Return mode prevents the load being transfer back to the S1 from the S2 supply until the
module is instructed to do so.

5.5.3.1 WAITING IN PROHIBIT RETURN

If a starting/loading request is made, the starting sequence begins.

Starting/loading requests may originate from the following sources:

• S1 supply out of limits

• Activation of an auxiliary input that has been configured to Remote Start On Load or Remote
Start Off Load.
• Activation of the inbuilt exercise scheduler.
• Instruction from external remote telemetry devices using the RS485 interface

5.5.3.2 STARTING SEQUENCE

To allow for ‘false’ start/load requests such as S1 brownouts, the Start Delay timer begins. There are
individual Start Delay timers for each of the different start/load request types.

When all start/load requests are removed during the Start Delay timer, the unit returns to a stand-by
state.

If a start/load request is still present at the end of the Start Delay timer, an output to give a start signal
to an external generator controller is activated (if S2 is configured as a generator).

If the generator fails to start during the ‘S2 Fail Delay’ timer, an alarm appears on the display which
shows Fail to Start. S2 is seen as available once the supply is within limits (if configured as a mains
supply) or had achieved Loading Voltage and Loading Frequency (if configured as a generator).

If a start/load request is present but the starting sequence has not begun, an input configured to ‘Auto
Start Inhibit’ may be active.

Page 71 of 95 057-368 ISSUE: 1

 Operation

5.5.3.3 S2 AVAILABLE

In Prohibit Return mode, the load is automatically transferred to S2 when it is within limits (if
configured as a mains supply) or has achieved Loading Voltage and Loading Frequency (if configured
as a generator).

If a start/load request is present but S2 does not go on load, an input configured to ‘S2 Load Inhibit’
may be active.

A loading request may originate from a number of sources.

• S1 supply out of limits

• Activation of an auxiliary input that has been configured to Remote Start On Load
• Activation of the inbuilt exercise scheduler if configured for ‘on load’ runs.

NOTE: The load transfer signal remains inactive until S2 is seen as available. This
prevents loading to a supply that has failed or is not yet available.

As the load increases and decreases, the module may (depending upon configuration) remove non-
essential loads. This is configured as part of the Load Shedding control settings in the DSE
Configuration Suite Software.
See section Error! Reference source not found. elsewhere in this document.

If all start requests are removed the return delay commences. The status display shows “Waiting for
Manual Restore” after the return delay, and the load remains on the standby source.The user must
transfer the load back, either by changing to Auto mode (which causes the load to transfer and the
cooldown timer to start if the standby source is a generator) or changing to start inhibit mode (which
causes the load to transfer or immediately stop if the standby source is a generator).

5.5.3.4 STOPPING SEQUENCE

In Return Inhibit mode, S2 continues to run on load even if S1 has return until either:

• Pressing the Start Inhibit Mode button to return to start inhibit mode.
• Pressing the Auto Mode button to return to automatic mode.

057-368 ISSUE: 1 Page 72 of 95

 Operation

5.6 SCHEDULER
The controller contains an inbuilt exercise run scheduler, capable of automatically starting and
stopping the set. Up to 16 scheduled start/stop sequences may be configured in banks of 8 to either
repeat on a 7-day or 28-day cycle.
Scheduled runs may be on load or off load depending upon module configuration.

Example

Screen capture from DSE

Configuration Suite
Software showing the
configuration of the
Exercise Scheduler.

In this example the set

starts at 09:00 on the first
Monday of each month
and run for 5 hours, then
start at 13:30 on every
Tuesday and run for 30
minutes.

5.6.1 START INHIBIT MODE

• Scheduled runs do not occur when the module is in Start Inhibit Mode .

5.6.2 MANUAL MODE

• Scheduled runs do not occur when the module is in Manual Mode .

• Activation of a Scheduled Run ‘On Load’ when the module is operating Off Load in Manual
mode has no effect, the set continues to run Off Load

5.6.3 AUTO MODE

• Scheduled runs operate ONLY if the module is in Auto Mode with no Electrical Trip alarm
present.
• If the module is in Start Inhibit Mode or Manual Mode when a scheduled run begins,
S2 is not started (if configured as generator). However, if the module is moved into Auto
Mode during a scheduled run, S2 is called to start.
• Depending upon configuration by the system designer, an external input may be used to
inhibit a scheduled run.
• If S2 is Off Load in Auto Mode and a scheduled run configured to ‘Transfer to S2’
begins, S2 is placed On Load for the duration of the Schedule.

Page 73 of 95 057-368 ISSUE: 1

 Operation

5.7 CHANGEOVER FUNCTIONALITY

The changeover functionality between S1 and S2 is dependent on how the DSE module is configured.
A brief description of the operation of each scheme is detailed in the following sections.

5.7.1 OPEN TRANSITION WITHOUT CHECK SYNC

NOTE: When using Open Transition, it is recommended that digital inputs are configured
for S2 Closed Auxiliary and S1 Closed Auxiliary to provide additional interlock protection.

By default, the DSE module performs an open transition without check sync, with a pre-configured
transfer delay between opening one load switch and closing the other. When changing over from S1
to S2, the module requests that the S1 load switch opens. Once the S1 Closed Auxiliary indicates the
mains load switch has opened, the Transfer Time begins. After the Transfer Time expires, the module
attempts to close the S2 load switch. The operating philosophy is the same when going from S2 to S1
and the complete transition is shown below in the timing diagram.

Transition Transition
Request Request

Output State Transfer Time Transfer Time

On
Close S1
Off

Close S1 On
Pulse Off Breaker Close
Pulse Time
On
Open S1
Off

Open S1 On
Pulse Off Breaker Trip
Pulse Time
S1 On
Closed
Auxiliary Off

Close On
Gen Off
Close On
Gen
Pulse Off Breaker Close
Pulse Time
Open On
Gen Off
Open On
Gen
Pulse Off Breaker Trip
Pulse Time
Gen On
Closed
Auxiliary Off

057-368 ISSUE: 1 Page 74 of 95

 Operation

5.7.2 OPEN TRANSITION WITH CHECK SYNC

NOTE: When using Open Transition, it is recommended that digital inputs are configured
for S2 Closed Auxiliary and S1 Closed Auxiliary to provide additional interlock protection.

NOTE: It is advised that the Return to Open Transition is enabled when Check Sync is
enabled. If Return to Open Transition is enabled, the module performs an open transition
without check sync if the supplies fail to drift into synchronism within the configured time. For
further details of module configuration, refer to DSE Publication: 057-367 DSE335 MKII
Configuration Software Manual.

It is possible to configure the DSE module to perform an open transition with check sync, with a pre-
configured transfer delay between opening one load switch and closing the other. When changing
over from S1 to S2, the module waits for the two supplies to become in sync (by passive or actively
synchronising depending on configuration). After the supplies become in sync, the module requests
that the S1 load switch opens. Once the S1 Closed Auxiliary indicates the S1 load switch has opened,
the Transfer Time begins. After the Transfer Time expires, the module attempts to close the S2 load
switch. The operating philosophy is the same when going from S2 to S1 and the complete transition is
shown below in the timing diagram.

Transition Supplies Transition Supplies

Request In Sync Request In Sync

Synchronising
Output State Transfer Time Synchronising Transfer Time
On
Close S1
Off

Close S1 On
Pulse Off Breaker Close
Pulse Time
On
Open S1
Off

Open S1 On
Pulse Off Breaker Trip
Pulse Time
S1 On
Closed
Auxiliary Off

Close On
Gen Off
Close On
Gen
Pulse Off Breaker Close
Pulse Time
Open On
Gen Off
Open On
Gen
Pulse Off Breaker Trip
Pulse Time
Gen On
Closed
Auxiliary Off

Page 75 of 95 057-368 ISSUE: 1

 Operation

5.7.3 CLOSED TRANSITION WITH CHECK SYNC

NOTE: When using Closed Transition With Check Sync, digital inputs must be configured
for S2 Closed Auxiliary and S1 Closed Auxiliary.

NOTE: When using Closed Transition With Check Sync, mechanical interlock must not be
fitted. It is recommended that external electrical interlock provided but overridden using and
output configured as Interlock Override.

NOTE: It is advised that the Return to Open Transition is enabled when Check Sync is
enabled. If Return to Open Transition is enabled, the module performs an open transition
without check sync if the supplies fail to drift into synchronism within the configured time. For
further details of module configuration, refer to DSE Publication: 057-367 DSE335 MKII
Configuration Software Manual.

It is possible to configure the DSE module to perform a closed transition with check sync, with a pre-
configured parallel time when both load switches are closed. When changing over from S1 to S2, the
module waits for the two supplies to become in sync (by passive or actively synchronising depending
on configuration). After the supplies become in sync, the module requests that the S2 load switch
closes. Once the S2 Closed Auxiliary indicates the S2 load switch has closed, the Paralleling Time
begins. After the Paralleling Time expires, the module attempts to open the S1 load switch. The
operating philosophy is the same when going from S2 to S1 and the complete transition is shown in
the timing diagram overleaf.

Transition Supplies Supplies Transition Supplies Supplies

Request In Sync In Parallel Request In Sync In Parallel

Paralleling
Synchronising Time
Output State
On
Close S1
Off Paralleling Synchronising
Time
Close S1 On
Pulse Off
Breaker Close
On Pulse Time
Open S1
Off
Open S1 On
Pulse Off Breaker Trip
S1 Pulse Time
On
Closed
Auxiliary Off
Close On
Gen Off
Close On
Gen
Pulse Off Breaker Close
Pulse Time
Open On
Gen Off
Open On
Gen
Pulse Off Breaker Trip
Pulse Time
Gen On
Closed
Auxiliary Off

057-368 ISSUE: 1 Page 76 of 95

 Operation

5.7.4 MANUAL LOAD SHED INPUT

When the Load Shed input is activated while S2 is closed the Open S2 output energises, it then de-
energises when the S2 Closed Auxiliary input indicates that it has successfully opened, or after 1s
whichever occurs first.

When the Load Shed input is activated while S1 is closed the Open S1 output energises, it then de-
energises when the S1 Closed Auxiliary input indicates that it has successfully opened, or after 1s
whichever occurs first.

When the Load shed input is de-energised the load is returned to the supply that was disconnected,
providing that supply is healthy.

5.7.5 AUTOMATIC LOAD SHEDDING CONTROL

The Load Shedding Control feature (if enabled) allows for a maximum of five load shedding steps.
When S2 is selected as a generator source and is about to take load, the configured number of Load
Shedding Control Outputs at Start are energised. This allows certain none-essential loads to be
removed prior to the generator’s load switch being closed. This is used to ensure the initial loading of
the generator is kept to a minimum, below the Load Acceptance specification of the generator.

The generator is then placed on load. The Load Shedding Control scheme begins.
When the generator loading exceeds the Load Shedding Trip level the Trip Delay timer starts. If the
generator loading is still high when the timer expires, the first Load shedding Control output energises.
When the generator loading been above the trip level for the duration of the timer the ‘next’ Load
Shedding Control output energises and so on until all Load Shedding Control outputs are energised.

When the generator loading falls below the Load Shedding Return level, the Return Delay Time starts.
If the generator load remains below the Load Shedding Return level when the timer has expired, the
‘highest’ Load Shedding Control output de-energises. This process continues until all outputs have
been de-energised.

When the generator enters a stopping sequence for any reason, all the Load Shedding Control
outputs de-energise at the same time as the generator load switch is signalled to open.

Example screen shot of Load Shedding Control setup in the DSE Configuration Suite:

Page 77 of 95 057-368 ISSUE: 1

 Protections

6 PROTECTIONS
6.1 ALARMS
When an alarm is active, the LCD display jumps from the ‘Information page’ to display the Alarm Page
and the Common Alarm output if configured, activates.

Number of present alarms. This is

alarm 1 of a total of 2 present
alarms

1/2 Alarms The nature of alarm, e.g. S1 Failure

S1 Failure
Latched
Warning
If the alarm
automatically resets
(unlatched) or needs to
The type of alarm. E.g.
be manually reset
Electrical Trip or warning
(latched).

The LCD displays multiple alarms E.g. “S1 Failure Warning”, “Fail to Stop Warning” and “Digital Input
A Electrical Trip”. These automatically scroll in the order that they occurred.

In the event of a warning alarm, the LCD displays the appropriate text. If an electrical trip then occurs,
the module again displays the appropriate text.
Example:-

1/2 Alarms
S1 Failed
Unlatched
Warning

2/2 Alarms
S1 Failed to Close
Start Inhibit: Failed to Close
Warning

057-368 ISSUE: 1 Page 78 of 95

 Protections

6.2 INDICATIONS
Indications are non-critical and often status conditions. They do not appear on the LCD display of the
module as a text message in the Status, Event Log or Alarms pages. However, an output or LED
indicator is configured to draw the operator’s attention to the event.

Example:

• Input configured for

indication.

• The LCD text does not

appear on the module
display but may be added
in the configuration to
remind the system designer
what the input is used for.

• As the input is configured to

Indication there is no alarm
generated.

• LED Indicator 1 illuminates

when Digital Input A is
active.

• The Insert Card Text allows

the system designer to print
an insert card detailing the
LED function.

• Example showing operation

of the LED.

Page 79 of 95 057-368 ISSUE: 1

 Protections

6.3 WARNING ALARMS

Warnings are non-critical alarm conditions and do not affect the operation of the system, they serve to
draw the operators attention to an undesirable condition.

Example
1/2 Alarm
S1 Failure
Latched
Warning

In the event of an alarm the LCD jumps to the alarms page and scroll through all active warnings and
alarms.

By default, warning alarms are self-resetting when the fault condition is removed. However, enabling
All Warnings Are Latched causes warning alarms to latch until reset manually. This is enabled using
the DSE Configuration Suite in conjunction with a compatible PC.

Fault Description

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
2130 ID 1 to 4 Analogue module configuration, refer to DSE Publication: 057-367 DSE335
Input E to H High MKII Configuration Suite PC Software Manual.

The module detected that an analogue input value of a DSE2130 had

risen above the Flexible Sensor High Pre-Alarm Trip level.

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
2130 ID 1 to 4 Analogue module configuration, refer to DSE Publication: 057-367 DSE335
Input E to H Low MKII Configuration Suite PC Software Manual.

The module detected that an analogue input value of a DSE2130 had

fallen below the Flexible Sensor Low Pre-Alarm Trip level.

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
module configuration, refer to DSE Publication: 057-367 DSE335
2130 ID1 to 4 Digital Input MKII Configuration Suite PC Software Manual.
A to H
The module detected that a digital input configured to create a fault
condition on a DSE2130 expansion module became active and the
appropriate LCD message displayed.
Battery Over Voltage The DC supply has risen above the high volts setting level for the
IEEE 37.2 – 59 DC Overvoltage duration of the high battery volts timer
Relay
Battery Under Voltage The DC supply has fallen below the low volts setting level for the
IEEE 37.2 – 27 DC Undervoltage duration of the low battery volts timer
Relay
Digital Input A To L The module detected that a digital input configured to create a fault
condition became active and the appropriate LCD message is
displayed.

Continued over page…

057-368 ISSUE: 1 Page 80 of 95

 Protections

Fault Description
Fail To Start S2 has not reached the configured limits or loading voltage and
frequency before the S2 Fail Delay timer has expired.
Fail To Stop The module has detected a condition that indicates that S2 is present
when it has been instructed to stop.
Loading Frequency Not Indicates that the S2 frequency is not above the configured loading
Reached frequency. S2 does not take load when the alarm is present after the
safety timer.

NOTE: Only applicable when S2 is configured as a generator

supply.
Loading Voltage Not Indicates that the S2 voltage is not above the configured loading
Reached voltage. S2 does not take load when the alarm is present after the
safety timer.

NOTE: Only applicable when S2 is configured as a generator

supply.
PLC Functions 1 To 20 If a PLC Function has been configured as a warning the appropriate
LCD message is displayed and the COMMON ALARM LED
illuminates.
S1 Fail Latched The module has detected that S1 has failed for an under/over
voltage/frequency condition. The latched alarm is not automatically
cleared and must be reset manually before S1 is returned to an
available state.
S1 Failed To Close The module detected that the generator load switch had failed to close
IEEE C37.2 – 52b AC Circuit as the S1 Closed Auxiliary input did not activate within the Fail to
Breaker Position (Contact Open
Close Delay time after the Close Gen Output activated.
when Breaker Closed)
S1 Failed To Open The module detected that the generator load switch had failed to open
IEEE C37.2 – 52b AC Circuit as the S1Closed Auxiliary input stayed activate for the Fail to Open
Breaker Position (Contact Open
Delay time after the Open Gen Output activated.
when Breaker Closed)
S2 Fail Latched The module has detected that S2has failed for an under/over
voltage/frequency condition. The latched alarm is not automatically
cleared and must be reset manually before S2 is returned to an
available state.
S2 Failed To Close The module detected that the generator load switch had failed to close
IEEE C37.2 – 52b AC Circuit as the S2 Closed Auxiliary input did not activate within the Fail to
Breaker Position (Contact Open
Close Delay time after the Close Gen Output activated.
when Breaker Closed)
S2 Failed To Open The module detected that the generator load switch had failed to open
IEEE C37.2 – 52b AC Circuit as the S2 Closed Auxiliary input stayed activate for the Fail to Open
Breaker Position (Contact Open
Delay time after the Open Gen Output activated.
when Breaker Closed)

Page 81 of 95 057-368 ISSUE: 1

 Protections

6.4 ELECTRICAL TRIP ALARMS

NOTE: The fault condition must be resolved before the alarm is allowed to be reset. If the
fault condition remains, it is not possible to reset the alarm (the exception to this is the
Coolant Temp High alarm and similar Active From Safety On alarms, as the coolant
temperature could be high with the engine at rest).

Electrical Trip Alarms are latching and unload S1 and S2 but in a controlled manner. On initiation of
the electrical trip condition the module de-activates the Close S1 Output and the Close S2 Output
to remove the load from the generator. Once this has occurred the module starts the Cooling Timer
and allows the engine to cool off-load before shutting down the engine. To restart the generator the
fault must be cleared, and the alarm reset.

Example
1/2 Alarms
Digital Input A
Latched
Electrical Trip

In the event of an alarm the LCD jumps to the alarms page and scrolls through all active alarms.

Electrical Trip Alarms are latching alarms and to remove the fault, press the Start Inhibit Mode
button on the module.

Fault Description

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
2130 ID 1 to 4 Analogue module configuration, refer to DSE Publication: 057-367 DSE335
Input E to H High MKII Configuration Suite PC Software Manual.

The module detected that an analogue input value of a DSE2130 had

risen above the Flexible Sensor High Alarm Trip level.

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
2130 ID 1 to 4 Analogue module configuration, refer to DSE Publication: 057-367 DSE335
Input E to H Low MKII Configuration Suite PC Software Manual.

The module detected that an analogue input value of a DSE2130 had

fallen below the Flexible Sensor Low Alarm Trip level.

NOTE: Due to module configuration the alarm message that

appears on the display may be different. For further details of
module configuration, refer to DSE Publication: 057-367
2130 ID1 to 4 Digital Input DSEx335 MKII Configuration Suite PC Software Manual.
A to H
The module detected that a digital input configured to create a fault
condition on a DSE2130 expansion module became active and the
appropriate LCD message displayed.

Continued over page…

057-368 ISSUE: 1 Page 82 of 95

 Protections

Fault Description
Auxiliary Inputs If an auxiliary input has been configured as an electrical trip, the
appropriate LCD message is displayed and the COMMON ALARM
LED illuminates.
Calibration Lost The module has lost its calibration settings and must be sent back to
DSE to be re-calibrated.
PLC Functions If a PLC Function has been configured as an electrical trip, the
appropriate LCD message is displayed and the COMMON ALARM
LED illuminates.
S1 Phase Rotation The module has detected a wrong phase sequence for S1.
S2 Phase Rotation The module has detected a wrong phase sequence for S2.

Page 83 of 95 057-368 ISSUE: 1

 Front Panel Configuration

7 FRONT PANEL CONFIGURATION

This configuration mode allows the operator to fully configure the module through its display without
the use of the DSE Configuration Suite PC Software.

Use the module’s facia buttons to traverse the menu and make value changes to the parameters:

Next Parameter /
Increase Value

Next
Section
Previous
Section

Previous Parameter /
Decrease Valvue
Edit / Save
Parameter

057-368 ISSUE: 1 Page 84 of 95

 Front Panel Configuration

7.1 ACCESSING THE FRONT PANEL EDITOR

NOTE: Depending upon module configuration, some parameters in the Main Editor may
not be available. For more information refer to DSE publication 057-367 DSE335 MKII
Configuration Suite PC Software Manual available from www.deepseaelectronics.com

• Ensure the engine is at rest and the module by pressing the Start Inhibit Mode button.

• Press the Start Inhibit Mode and Tick buttons together to enter the main configuration
editor.

7.1.1 ENTERING PIN

NOTE: The PIN is not set by DSE when the module leaves the factory. If the module has a
PIN code set, the generator supplier has entered this. Contact the generator supplier if the
code is required. If the code has been ‘lost’ or ‘forgotten’, the module must be returned to the
DSE factory to have the PIN removed. A charge is made for this procedure. This procedure
cannot be performed away from the DSE factory.

NOTE: The PIN is automatically reset when the editor is exited (manually or automatically)
to ensure security.

• If a module security PIN has been set, the PIN request is then shown.

• Press the Tick button, the first ‘#’ changes to ‘0’. Press the Up or Down buttons to
adjust it to the correct value.

• Press the Right button when the first digit is correctly entered. The digit previously entered
now shows as ‘#’ for security.

• Repeat this process for the other digits of the PIN number. Press the Left button to move
back to adjust one of the previous digits.

• When the Tick button is pressed after editing the final PIN digit, the PIN is checked for
validity. If the number is not correct, the PIN must be re-entered.

• If the PIN has been successfully entered (or the module PIN has not been enabled), the editor is
displayed.

Page 85 of 95 057-368 ISSUE: 1

 Front Panel Configuration

7.1.2 EDITING A PARAMETER

NOTE: The editor automatically exits after 5 minutes of inactivity to ensure security.

NOTE: The PIN number is automatically reset when the editor is exited (manually or
automatically) to ensure security.

NOTE: For more information refer to DSE publication 057-367 DSE335 MKII Configuration
Suite PC Software Manual.

• Enter the editor as described above.

• Press the (left) or (right) buttons to cycle to the section to view/change.

• Press the (up or down) buttons to select the parameter to view/change within the
currently selected section.

• To edit the parameter, press the Tick button to enter edit mode. The parameter begins to
flash to indicate that value is being edited.

• Press the (up or down) buttons to change the parameter to the required value.

• Press the Tick button to save the value. The parameter ceases flashing to indicate that it has
been saved.

7.1.3 EXITING THE MAIN CONFIGURATION EDITOR

NOTE: The editor automatically exits after 5 minutes of inactivity to ensure security.

• Press and hold the Start Inhibit Mode button to exit the editor without saving changes.

• Press and hold the Tick button to exit the editor and save the changes.

057-368 ISSUE: 1 Page 86 of 95

 Front Panel Configuration

7.1.4 MAIN CONFIGURATION EDITOR PARAMETERS

NOTE: For more information refer to DSE publication 057-367 DSE335 MKII Configuration
Suite PC Software Manual.

Section Parameter As Shown On Display Values

Display Contrast 0%
Language English
LCD Page Delay 0h0m0s
LCD Scroll Delay 0h0m0s
Current Date And Time DD:MM:YY, hh:mm:ss
S1 S1 Option Generator, Mains
Immediate S1 Dropout Active / Inactive
Under Voltage Trip 0V
Over Voltage Trip 0V
Under Frequency Trip 0.0 Hz
Over Frequency Trip 0.0 Hz
S2 S2 Option Generator, Mains
Immediate S2 Dropout Active / Inactive
Under Voltage (Generator Option) 0V
Over Voltage (Generator Option) 0V
Under Frequency (Generator Option) 0.0 Hz
Over Frequency (Generator Option) 0.0 Hz
Timers S1 Transient Delay 0m0s
S2 Start Delay 0h0m0s
S2 Warming 0h0m0s
S2 Fail To Start Delay 0m0s
Elevator Delay 0m0s
Non-Sync Transfer Time 0m0s
Check-Sync Transfer Time 0m0s
S2 Return Delay 0h0m0s
S2 Cooling 0h0m0s
S2 Fail To Stop Delay 0m0s
S2 Transient Delay 0.0 s
Schedule Schedule Active / Inactive
Schedule Bank 1 Period Weekly / Monthly,
Do Not transfer,Off Load or Transfer, Press the Tick button to begin
Week, Start Time, Run Time, and Day. editing then up or down when
Selection (1 to 8) selecting the different parameters.
Schedule Bank 2 Period Weekly / Monthly,
Do Not transfer,Off Load or Transfer, Press the Tick button to begin
Week, Start Time, Run Time, and Day. editing then up or down when
Selection (1 to 8) selecting the different parameters.

Page 87 of 95 057-368 ISSUE: 1

 Commissioning

8 COMMISSIONING
Before the system is started, it is recommended that the following checks are made:-

1. The unit is adequately cooled and all the wiring to the module is of a standard and rating
compatible with the system. Check all mechanical parts are fitted correctly and that all electrical
connections (including earths) are sound.

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

3. To check the start cycle operation, take appropriate measures to prevent S2 from starting (if
configured as a generator by disconnecting the start output) and press the Manual mode
button. Check to see if the start signal energises.

4. Set the modules internal clock/calendar to ensure correct operation of the scheduler and event
logging functions.

5. Customers who are facing difficulties in obtaining desired operational results despite conducting
multiple checks on the connections between the controller and their respective system are
encouraged to contact DSE Technical Support for assistance.

6. Remove the remote start signal. The return sequence begins. After the pre-set time, the generator
is unloaded. The generator then runs for the pre-set cooling down period, then shutdown into its
standby mode.

7. Set the modules internal clock/calendar to ensure correct operation of the scheduler and event
logging functions.

057-368 ISSUE: 1 Page 88 of 95

 Fault Finding

9 FAULT FINDING
9.1 STARTING

Symptom Possible Remedy

Unit is inoperative Check the battery and wiring to the unit. Check the DC supply.
Check the DC fuse.
Read/Write configuration
does not operate
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.
Fail to Start is activated Check wiring of the S2 sensing cables. Check the start output is
correctly wired into the generator controller.
Continuous starting of S2 Check that there is no signal present on the “Remote Start” input.
when in Auto Mode . Check configured polarity is correct.
Check the S2 supply available and within configured limits
S2 fails to start or go on load Check S2 Fail Delay timer has timed out.
on receipt of Remote Start
signal. Check signal is on “Remote Start” input. Confirm correct
configuration of input is configured to be used as “Remote Start”.

9.2 LOADING

Symptom Possible Remedy

S2 supply present runs but Ensure S2 is available and within configured limits and a load
does not take load inhibit signal is not present on the module inputs. Check
connections to the switching device.
Note that S2 does not take load in Manual Mode unless there
is an active remote start on load signal.

9.3 ALARMS

Symptom Possible Remedy

Electrical Trip fault operates Check relevant switch and wiring of fault indicated on LCD display.
Check configuration of input.
Warning fault operates Check relevant switch and wiring of fault indicated on LCD display.
Check configuration of input.

9.4 COMMUNICATIONS

Symptom Possible Remedy

RS485 inoperative Check :
• Connection cable – Belden 9841 or equivalent
• 120  termination resistors are correctly fitted
• Baud rate of controller and of client device are the same
• Server ID of the controller is the same as configured in the
client device
DSENet Check :
• Connection cable – Belden 9841 or equivalent
• 120  termination resistors are correctly fitted
• DSENet ID on the expansion module is correct.

Page 89 of 95 057-368 ISSUE: 1

 Fault Finding

9.5 INSTRUMENTS

Symptom Possible Remedy

Inaccurate S1 & S2 Check that the CT primary, CT secondary and VT ratio settings are
measurements on controller correct for the application.
display
Check that the CTs are wired correctly with regards to the direction
of current flow (p1,p2 and s1,s2) and additionally ensure that CTs
are connected to the correct phase (errors occur if CT1 is connected
to phase 2).

Remember to consider the power factor. i.e. (kW = kV A x

powerfactor)

The controller is true RMS measuring so gives more accurate

display when compared with an ‘averaging’ meter such as an
analogue panel meter or some lower specified digital multimeter.

Accuracy of the controller is better than 1% of full scale. i.e. S1 volts

full scale is 333 V ph-n so accuracy is ±3.33 V (1% of 333 V).

9.6 MISCELLANEOUS

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

Symptom Possible Remedy

Module appears to ‘revert’ to When editing a configuration using the PC software it is vital that
an earlier configuration the configuration is first ‘read’ from the controller before editing it.
This edited configuration must then be “written” back to the
controller for the changes to take effect.

When editing a configuration using the fascia editor, be sure to

press the Tick button to save the change before moving to
another item or exiting the fascia editor

057-368 ISSUE: 1 Page 90 of 95

 Maintenance, Spares, Repairs and Servicing

10 MAINTENANCE, SPARES, REPAIR AND SERVICING

The controller is Fit and Forget. As such, there are no user serviceable parts within the controller.
In the case of malfunction, contact the original equipment manufacturer (OEM).

10.1 PURCHASING ADDITIONAL CONNECTOR PLUGS FROM DSE

If additional plugs are required from DSE, please contact our sales department using the part numbers below.

10.1.1 PACK OF PLUGS

Module type Plug Pack Part Number

DSE335 MKII 007-827

10.1.2 INDIVIDUAL PLUGS

Module Terminal Designation Plug Description Part No.

1 to 8 8 way 5.08 mm 007-164
9 to 17 9 way 5.08 mm 007-167
18 to 24 7 way 5.08 mm 007-447
25 to 29 5 way 7.62 mm 007-473
30 to 37 S2 8 way 7.62 mm 007-454
38 to 41 S1 4 way 7.62 mm 007-171
42 to 47 6 way 5.08 mm 007-446
48 to 53 6 way 7.62 mm 007-162
54 to 56 RS485 3 way 5.08 mm 007-174
PC Configuration interface lead
(USB type A to USB type B)

10.2 PURCHASING ADDITIONAL FIXING CLIPS FROM DSE

Item Description Part No.

Module fixing clips (packet of 4) 020-294

10.3 PURCHASING ADDITIONAL SEALING GASKET FROM DSE

Item Description Part No.

Module silicon sealing gasket 020-564

Page 91 of 95 057-368 ISSUE: 1

 Maintenance, Spares, Repairs and Servicing

10.4 DSENET EXPANSION MODULES

NOTE: A maximum of six (6) expansion modules can be connected to the DSENet®.

NOTE: DSENet® utilises an RS485 connection. Using Belden 9841 (or equivalent) cable
allows for the expansion cable to be extended to a maximum of 1.2 km.
DSE Stock and supply Belden 9841 cable. DSE Part Number 016-030.

DSE Part Numbers

Model
Max No. order Sales Operator Installation
Item supported Description number literature manual Instructions

Model DSE2130 input module provides

2 additional analogue and digital inputs 2130-001-00 055-060 057-082 053-033
for use with the controller.

Model DSE2157 expansion relay

module provides eight additional
2 voltage free relays for use with the
2157-001-00 055-061 057-083 053-034
controller

Model DSE2548 expansion LED

module provides additional LED
2 indications, internal sounder, and 2548-001-00 055-062 057-084 053-032
remote lamp test/alarm mute for use
with the controller.

057-368 ISSUE: 1 Page 92 of 95

 Warranty and Disposal

11 WARRANTY
DSE provides limited warranty to the equipment purchaser at the point of sale. For full details of any
applicable warranty, refer to the original equipment supplier (OEM).

12 DISPOSAL
12.1 WEEE (WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT)
If you use electrical and electronic equipment you must store, collect, treat, recycle,
and dispose of WEEE separately from your other waste.

Page 93 of 95 057-368 ISSUE: 1

This Page is Intentionally Blank
This Page is Intentionally Blank