DEEP SEA ELECTRONICS DSE327 User manual

057-286 ISSUE: 3
DEEP SEA ELECTRONICS
DSE327 Operator Manual
Document Number: 057-286
Author: Matt Simpson

DSE327 Operator Manual
057-286 ISSUE: 3
Page 2 of 24
Deep Sea Electronics Ltd
Highfield House
Hunmanby
North Yorkshire
YO14 0PH
ENGLAND
Sales Tel: [phone]
E-mail: [e-mail]
Website: www.deepseaelectronics.com
DSE327 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®, DSEControl® and DSEPower®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. No.
Comments
1
Initial Release
2
Added Section Configuration Mode
3
Updated to include Product Variants section.

DSE327 Operator Manual
Page 3 of 24
057-286 ISSUE: 3
TABLE OF CONTENTS
Section
Page
1INTRODUCTION..................................................................................................4
1.1 CLARIFICATION OF NOTATION............................................................................................5
1.2 GLOSSARY OF TERMS..........................................................................................................5
1.3 BIBLIOGRAPHY ......................................................................................................................5
1.3.1 INSTALLATION INSTRUCTIONS.....................................................................................5
1.3.2 TRAINING DOCUMENTS.................................................................................................5
1.3.3 THIRD PARTY DOCUMENTS..........................................................................................5
2SPECIFICATIONS...............................................................................................6
2.1 PRODUCT VARIANTS.............................................................................................................6
2.2 TEMPERATURE SPECIFICATION .........................................................................................6
2.3 TERMINAL SPECIFICATION ..................................................................................................6
2.4 POWER SUPPLY REQUIREMENTS.......................................................................................7
2.4.1 230 V VARIANT.................................................................................................................7
2.4.2 110 V VARIANT.................................................................................................................7
2.5 VOLTAGE AND FREQUENCY SENSING...............................................................................8
2.5.1 230 V VARIANT.................................................................................................................8
2.5.2 110 V VARIANT.................................................................................................................8
2.6 OUTPUTS.................................................................................................................................8
2.6.1 S1 AND S2 CLOSE RELAY..............................................................................................8
2.6.2 RUN RELAY......................................................................................................................8
2.7 DIMENSIONS AND MOUNTING .............................................................................................9
2.7.1 WEIGHT............................................................................................................................9
2.8 APPLICABLE STANDARDS.................................................................................................10
3INSTALLATION.................................................................................................11
3.1 USER CONNECTIONS..........................................................................................................11
3.2 CONNECTION DESCRIPTIONS ...........................................................................................12
3.3 TYPICAL WIRING DIAGRAM................................................................................................13
3.3.1 SINGLE PHASE, 2 WIRE (L1 & N).................................................................................13
3.3.2 3 PHASE, 4 WIRE (L1, L2, L3 & N) ................................................................................14
4OPERATION......................................................................................................15
4.1 LED INDICATORS .................................................................................................................16
4.1.1 S1 / S2 AVAILABLE LED ................................................................................................16
4.1.2 S1 / S2 BREAKER LED ..................................................................................................16
4.2 TIMERS ..................................................................................................................................17
4.3 TIMING DIAGRAM.................................................................................................................18
4.3.1 S1 FAILURE....................................................................................................................18
4.3.1.1 ABOVE POWER SUPPLY LIMIT.............................................................................18
4.3.1.2 BELOW POWER SUPPLY LIMIT............................................................................18
4.3.2 S1 RETURN....................................................................................................................19
5PROTECTIONS .................................................................................................20
6CONFIGURATION MODE .................................................................................21
6.1 ENTERING CONFIGURATION MODE..................................................................................21
6.2 SELECTING THE CONFIGURATION ...................................................................................22
6.3 SAVING THE CONFIGURATION ..........................................................................................22
7MAINTENANCE, SPARES, REPAIR AND SERVICING ...................................23
8WARRANTY ......................................................................................................23
9DISPOSAL.........................................................................................................23
9.1 WEEE (WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT).....................................23

Introduction
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Page 4 of 24
1 INTRODUCTION
This document details the installation and operational requirements of the DSE327 module, part of the
DSEATS ® range of products.
The manual forms part of the product and should be kept for the entire life of the product. If the
product is passed or supplied to another party, ensure that this document is passed to them for
reference purposes.
This is not a controlled document. You will not be automatically informed of updates. Any future
updates of this document will be included on the DSE website at www.deepseaelectronics.com.
The DSE327 is housed within robust plastic case designed for DIN rail mounting. Connections to the
module are via screw terminals.
The module has been designed to automatically transfer the load from one supply to another, typically
the mains supply (S1) and a standby generator (S2), or alternatively two mains supplies where S1 is
always the priority.
It monitors the two supply voltages, indicating the supply status and breaker conditions via the facia
LEDs. The module automatically transfers the load to S2 in case of an S1 supply failure.
The module’s fascia allows adjustment of the Breaker Delay timers. For more information see the
section entitled Timers elsewhere in this manual.

Introduction
Page 5 of 24
057-286 ISSUE: 3
1.1 CLARIFICATION OF NOTATION
Clarification of notation used within this publication.
NOTE:
Highlights an essential element of a procedure to ensure correctness.
CAUTION!
Indicates a procedure or practice, which, if not strictly observed, could
result in damage or destruction of equipment.
WARNING!
Indicates a procedure or practice, which could result in injury to personnel
or loss of life if not followed correctly.
1.2 GLOSSARY OF TERMS
Term
Description
DSE3XX
All modules in the DSE3xx.
ATS
Automatic Transfer Switch
S1
Supply 1, normally connected to the mains supply
S2
Supply 2, normally connected to the generator supply
1.3 BIBLIOGRAPHY
This document refers to and is referred to by the following DSE publications which can be obtained
from the DSE website www.deepseaelectronics.com.
1.3.1 INSTALLATION INSTRUCTIONS
DSE Part
Description
053-237
DSE327 Installation Instructions
1.3.2 TRAINING DOCUMENTS
DSE Part
Description
056-022
Switchgear Control
056-091
Equipotential Earth Bonding
1.3.3 THIRD PARTY DOCUMENTS
The following third party documents are also referred to:
ISBN
Description
1-55937-879-4
IEEE Std C37.2-1996 IEEE Standard Electrical Power System Device Function
Numbers and Contact Designations. Published by Institute of Electrical and
Electronics Engineers Inc

Specifications
057-286 ISSUE: 3
Page 6 of 24
2 SPECIFICATIONS
2.1 PRODUCT VARIANTS
CAUTION! Always ensure that the DSE327 ATS is the correct variant for the application.
For more information on Product Variants please contact DSE Technical Support;
[e-mail]
The DSE327 is supplied with varying hardware and configuration parameters depending on the
application requirements. The product hardware and configuration variant are referenced within the
Product Part Number found on the rear of the module as shown below;
Product Part Number
2.2 TEMPERATURE SPECIFICATION
Status
Specification
Operating
-30 ºC to 70 ºC (-22 ºF to 158 ºF )
Storage
-40 ºC to 80 ºC (-40 ºF to 176 ºF )
2.3 TERMINAL SPECIFICATION
Description
Specification
Connection Type
Screw terminal, rising clamp, no internal spring
Example showing cable entry
Minimum Cable Size
0.5 mm² (AWG 20)
Maximum Cable Size
2.5 mm² (AWG 13)
Tightening Torque
0.5 Nm (4.5 lb-in)
Wire Strip Length
7 mm (9/32”)
Product Part
Number

Specifications
Page 7 of 24
057-286 ISSUE: 3
2.4 POWER SUPPLY REQUIREMENTS
NOTE: As the power supply is between L1 and N, topologies without a neutral connection
are not supported.
2.4.1 230 V VARIANT
Description
Specification
Power Supply Terminals
L1 and N from S1 / S2 supplies
Nominal Frequency
50 Hz
Nominal Voltage
230 V
Minimum S1 Power Supply Voltage
50 V to activate S1 LEDs
184 V to close the Close S1 output
Minimum S2 Power Supply Voltage
70 V to activate S2 LEDs
184 V to close the Close S2 output
Maximum Power Supply Voltage
300 V
Maximum Operating Power
Auto mode with all LEDs illuminated
1 W (S1), 0.7 W (S2)
Maximum Standby Power
1 W (S1), 0.7 W (S2)
Frequency Range
40 Hz to 60 Hz
2.4.2 110 V VARIANT
Description
Specification
Power Supply Terminals
L1 and N from S1 / S2 supplies
Nominal Frequency
60 Hz
Nominal Voltage
110 V
Minimum S1 Power Supply Voltage
25 V to activate S1 LEDs
88 V to close the Close S1 output
Minimum S2 Power Supply Voltage
30 V to activate S2 LEDs
88 V to close the Close S2 output
Maximum Power Supply Voltage
150 V
Maximum Operating Power
Auto mode with all LEDs illuminated
1 W (S1), 0.7 W (S2)
Maximum Standby Power
1 W (S1), 0.7 W (S2)
Frequency Range
50 Hz to 70 Hz

Specifications
057-286 ISSUE: 3
Page 8 of 24
2.5 VOLTAGE AND FREQUENCY SENSING
NOTE: Frequency failure detection is not supported within this module. However, the
module only supports AC supplies in the range of 40 Hz to 70 Hz.
NOTE: Voltage phase to phase failure detection is not supported within this module.
However, the module supports a maximum phase to phase AC supply of 520 V.
2.5.1 230 V VARIANT
Description
Specification
Measurement Type
True RMS conversion
Sample Rate
1 Hz
Harmonics
Up to the 10th
Phase To Neutral
180 V to 300 V
Phase To Phase
520 V Maximum
Resolution
1 V phase to neutral
Accuracy
±5% of full scale phase to neutral
Minimum Frequency
40 Hz
Maximum Frequency
60 Hz
2.5.2 110 V VARIANT
Description
Specification
Measurement Type
True RMS conversion
Sample Rate
1 Hz
Harmonics
Up to the 10th
Phase To Neutral
85 V to 150 V
Phase To Phase
520 V Maximum
Resolution
1 V phase to neutral
Accuracy
±5% of full scale phase to neutral
Minimum Frequency
50 Hz
Maximum Frequency
70 Hz
2.6 OUTPUTS
2.6.1 S1 AND S2 CLOSE RELAY
Description
Specification
Type
Normally Open Volt-Free Relay.
Rating
8 A at 250 Vac
5 A at 30 Vdc
2.6.2 RUN RELAY
Description
Specification
Type
Normally Closed Volt-Free Relay.
Rating
8 A at 250 Vac
5 A at 30 Vdc

Specifications
Page 9 of 24
057-286 ISSUE: 3
2.7 DIMENSIONS AND MOUNTING
NOTE: In conditions of excessive vibration, mount the panel on suitable anti-vibration
mounting
Description
Specification
Mounting Type
DIN rail or chassis mounting
DIN Rail Width
EN 50022: 35 mm (1.4 “)
Dimensions Mounted on DIN Rail
72 mm X 94.5 mm X 64.5 mm
(2.83 ” X 3.72 ” X 2.54 ”)
Dimensions Using Mounting Holes
72 mm X 112 mm X 64.5 mm
(2.83 ” X 4.41 ” X 2.54 ”)
Chassis Mounting Holes
M4 (0.25 ")
Chassis Mounting Hole Centres
100.5 mm (3.96 ”) at the module centre line
2.7.1 WEIGHT
Description
Specification
Module Weight
0.20 kg (230 V variant)
0.22 kg (110 V variant)
Shipped Weight
Includes all packaging and installation instructions
0.16 kg (230 V variant)
0.18 kg (110 V variant)

Specifications
057-286 ISSUE: 3
Page 10 of 24
2.8 APPLICABLE STANDARDS
Standard
Description
BS 4884-1
This document conforms to BS4884-1 1992 Specification for presentation of
essential information.
BS 4884-2
This document conforms to BS4884-2 1993 Guide to content
BS 4884-3
This document conforms to BS4884-3 1993 Guide to presentation
BS EN 60068-2-1
(Minimum
temperature)
-30 C (-22 F)
BS EN 60068-2-2
(Maximum
temperature)
+70 C (158 F)
BS EN 60950
Safety of information technology equipment, including electrical business
equipment
BS EN 60068-2-30
(Damp heat cyclic)
20°C to 55 °C at 95% relative humidity for 48 hours
BS EN 60068-2-78
(Damp heat static)
40 °C at 95% relative humidity for 48 hours
BS EN 60950
(Electrical safety)
Safety of information technology equipment, including electrical business
equipment
BS EN 61000-6-2
(Electro-magnetic
Compatibility)
EMC Generic Immunity Standard (Industrial)
BS EN 61000-6-4
(Electro-magnetic
Compatibility)
EMC Generic Emission Standard (Industrial)
BS EN 61000-6-2
EMC Generic Immunity Standard (Industrial)
BS EN 61000-6-4
EMC Generic Emission Standard (Industrial)
BS EN 60529
(Degrees of protection
provided by
enclosures)
IP20
UL508
NEMA rating
(Approximate)
1
IEEE C37.2
(Standard Electrical
Power System Device
Function Numbers
and Contact
Designations)
Under the scope of IEEE 37.2, function numbers can also be used to
represent functions in microprocessor devices and software programs.
The controller is device number 11L-8000 (Multifunction device protecting
Line (generator) –module).
As the module is configurable by the generator OEM, the functions covered
by the module vary. Depending on module configuration, the device
numbers included within the module could be:
2 –Time-delay Starting or Closing Relay
3 –Checking or Interlocking Relay
6 –Starting Circuit Breaker
10 –Unit Sequence Switch
11 –Multifunction Device
27 –AC Under Voltage Relay
29 –Isolating Contactor
59 –AC Overvoltage Relay
In line with our policy of continual development, Deep Sea Electronics Ltd, reserve the right to change specification without
notice.

Installation
Page 11 of 24
057-286 ISSUE: 3
3 INSTALLATION
3.1 USER CONNECTIONS
To aid user connection, terminal descriptions are applied on the front of the module to help identify
terminal functions. An example of this is shown below.
Breaker Delay
Timers
S1 Supply
Close S1
Output
Close S2
Output
S2 Supply
S2 Run
Output
LED
Indicators

Installation
057-286 ISSUE: 3
Page 12 of 24
3.2 CONNECTION DESCRIPTIONS
Name
PIN
No
Description
Cable
Size
Notes
Close
S2
1
Normally Open Volt-Free
Relay
1.0 mm²
AWG 18
Used to control the S2 breaker coil.
2
S2
3
S2 Neutral Voltage
monitoring
1.0 mm²
AWG 18
Connect to S2 N.
(Recommend 2 A fuse)
Power supply for module in event of S1 failure.
4
S2 L1 Voltage monitoring
1.0 mm²
AWG 18
Connect to S2 L1.
(Recommend 2 A fuse)
Power supply for module in event of S1 failure.
Run
5
Normally Closed Volt-Free
Relay
1.0 mm²
AWG 18
Used to issue a Start command to S2 (generator) Upon
S1 (mains) failure the contact becomes closed.
6
Close
S1
7
Normally Open Volt-Free
Relay
1.0 mm²
AWG 18
Used to control the S1 breaker coil.
8
S1
9
S1 L3 Voltage monitoring
1.0 mm²
AWG 18
Connect to S1 L3.
(Recommend 2 A fuse)
10
S1 L2 Voltage monitoring
1.0 mm²
AWG 18
Connect to S1 L2.
(Recommend 2 A fuse)
11
S1 L1 Voltage monitoring
1.0 mm²
AWG 18
Connect to S1 L1.
(Recommend 2 A fuse)
Power supply for module.
12
S1 Neutral Voltage
monitoring
1.0 mm²
AWG 18
Connect to S1 N.
(Recommend 2 A fuse)
Power supply for module.

Installation
Page 13 of 24
057-286 ISSUE: 3
3.3 TYPICAL WIRING DIAGRAM
As every system has different requirements, these diagrams show only a TYPICAL system and do not
intend to show a complete system.
Manufacturers and panel builders may use these diagrams as a starting point, however you are
referred to the completed system diagram provided by your system manufacturer for complete wiring
detail.
Further wiring suggestions are available in the following DSE publications, available at
www.deepseaelectronics.com.
DSE Part
Description
056-022
Switchgear Control
056-091
Equipotential Earth Bonding
3.3.1 SINGLE PHASE, 2 WIRE (L1 & N)

Installation
057-286 ISSUE: 3
Page 14 of 24
3.3.2 3 PHASE, 4 WIRE (L1, L2, L3 & N)

Operation
Page 15 of 24
057-286 ISSUE: 3
4 OPERATION
The DSE327 only offers protection for phase to neutral voltage failure and has one mode of automatic
operation with two user configurable Breaker Delays for S1 and S2.
If the S1 supply is out of limits on any of the phases, the S1 Available LED flashes twice every second
for the S1 Transient Delay (5 seconds). Upon the S1 Transient Delay ending, if the S1 supply voltage
is above the minimum supply voltage (25 V to 50 V), the S1 Available LED flashes once every 4
seconds for the duration of the failure. At the same time, the Run output closes to start/run the S2
supply. During this time the Close S1 output remains closed.
However, if the S1 supply voltage is below the minimum supply voltage (25 V to 50 V), the S1 Close
output opens immediately, and all S1 LEDs extinguish. The Run output also activates at this time to
start/run S2.
Upon sensing S2 within limits, the S2 Available LED flashes every second for the duration of the S2
Breaker Delay. Upon the S2 Breaker Delay ending, the LED remains lit and the Close S1 output
opens. After the Transfer Delay (1 second), the Close S2 output closes.
If the S2 supply goes out of limits on the sensed phase, the S2 Available LED flashes twice every
second for the S2 Transient Delay (5 seconds). Upon the S2 Transient Delay ending if the S1 supply
voltage is above the minimum supply voltage (30 V to 70 V), the S2 Available LED flashes once every
4 seconds for the duration of the failure. At the same time, the Run output remains closed to
restart/run the S2 supply. During this time the Close S2 output remains closed.
However, if the S2 supply voltage is below the minimum supply voltage (30 V to 70 V), the S2 Close
output opens immediately, and all S2 LEDs extinguish. The Run output remains active at this time to
restart/run S2.
Upon sensing S1 within limits, the S1 Available LED flashes every second for the duration of the S1
Breaker Delay. Upon the S1 Breaker Delay ending, the LED remains lit and the Close S2 output
opens. After the Transfer Delay (1 second), the Close S1 output closes and the S2 Cooling time (6
seconds) begins. Once the S2 Cooling time has completed, the Run output opens to stop S2.

Operation
057-286 ISSUE: 3
Page 16 of 24
4.1 LED INDICATORS
4.1.1 S1 / S2 AVAILABLE LED
Two Available LEDs are shown on the module panel. The LEDs indicate if the AC supply is Available.
For further information on Protection values refer to section entitled Protection section elsewhere in
this manual.
S1 / S2 Available LED
Description
Blink Twice per second





(2 Hz)
Supply Failing, Transient Delay in progress
Under Voltage: ~25% of Nominal < Supply < 80% of Nominal
Over Voltage: 120% of Nominal < Supply
Blink Once every four seconds


(0.25 Hz)
Supply Failed
Under Voltage: ~25% of Nominal < Supply < 80% of Nominal
Over Voltage: 120% of Nominal < Supply
Blink Once every second





(1 Hz)
Breaker Delay in progress
Lit
Supply Available
90% of Nominal < Supply < 110% of Nominal
Unlit
Supply Unavailable
Supply < ~25% of Nominal
4.1.2 S1 / S2 BREAKER LED
Two Breaker LEDs are shown on the module panel. The LEDs indicate the Breaker status for each
supply.
S1 / S2 Breaker LED
Description
Lit
Breaker Close Request
Unlit
Breaker Open Request

Operation
Page 17 of 24
057-286 ISSUE: 3
4.2 TIMERS
Timer
Time Range
S1 Breaker Delay
1 s to 40 s ±3%
S2 Breaker Delay
1 s to 40 s ±3%
S1 Transient Delay
5 s ±3%
S2 Transient Delay
4 s ±3%
Transfer Delay
NOTE: For Product Part Number 0327-001-03 the Transfer Delay Timer
is fixed at 10 seconds. For all other hardware variants, the timer is fixed to
1 second.
1 s ±3%
S2 Cooling
6 s ±3%
S1 / S2 Breaker Delay
The S1 / S2 Breaker Delay defines the length of time between S1 / S2 becoming Available and the
Close S1 / S2 output closing. This timer is used to ensure the S1 / S2 supply is stable and has
reached its nominal before placing S1 / S2 on load.
S1 / S2 Transient Delay
The S1 / S2 Transient Delay defines the length of time between the supply failing and a S1 / S2
Failure becoming active. This allows for fluctuations in load which may cause the supply to
temporarily fall below their protection values.
Transfer Delay
The Transfer Delay defines the length of time for an S1 / S2 transfer to take place. During this time
both Close S1 and Close S2 outputs remain open.
S2 Cooling
The S2 Cooling defines the length of time that the Run output remains closed after a transfer from S2
to S1. This timer is used to allow the generator (S2) to cooldown after being on load.

Operation
057-286 ISSUE: 3
Page 18 of 24
4.3 TIMING DIAGRAM
The following Timing Diagrams detail the sequence of events during a typical S1 to S2 transfer in
various scenarios. In all scenarios, the S1 / S2 Breaker Delays have been configured to 5 seconds.
4.3.1 S1 FAILURE
4.3.1.1 ABOVE POWER SUPPLY LIMIT
In this example, the S1 supply voltage has risen above the S1 Breaker Over Voltage Trip or fallen
below the S1 Breaker Under Voltage Trip whilst remaining above the range of the module’s power
supply.
Output
Switch State
Open
Close
S1
Close
Open
Run
Close
Open
Close
S2
Close
4.3.1.2 BELOW POWER SUPPLY LIMIT
In this example, the S1 supply voltage has or fallen below the S1 Breaker Under Voltage Trip and
below the range of the module’s power supply.
Output
Switch State
Open
Close
S1
Close
Open
Run
Close
Open
Close
S2
Close
S1 Failure
S2 Available
S2 Breaker
Delay
complete
Transfer
Delay
complete
S2 Breaker Delay
S1 Failure
S2 Available
S2 Breaker
Delay
complete
Transfer
Delay
complete
S1 Transient
Delay
complete
S1 Transient Delay
S2 Breaker Delay
Transfer Delay
Transfer Delay

Operation
Page 19 of 24
057-286 ISSUE: 3
4.3.2 S1 RETURN
In this example, the S1 supply voltage has risen above the S1 Breaker Under Voltage Return or fallen
below the S1 Breaker Over Voltage Return.
Output
Switch State
Open
Close
S1
Close
Open
Run
Close
Open
Close
S2
Close
S1 Available
Transfer
Delay
complete
S1 Breaker
Delay
complete
S2 Cooling
complete.
S1 Breaker Delay
S2 Cooling
Transfer Delay

Protections
057-286 ISSUE: 3
Page 20 of 24
5 PROTECTIONS
NOTE: The DSE327 only provides phase to neutral voltage failure detection, frequency
failure detection is not supported within this module.
NOTE: See section entitled Configuration Mode elsewhere in this document for further
details on how to configure the module’s nominal voltage.
Fault
110 V Variant
230 V Variant
S1/S2 Breaker Under Voltage Trip
80% of Selected Nominal
Voltage
80% of Selected Nominal
Voltage
S1/S2 Breaker Under Voltage
Return
90% of Selected Nominal
Voltage
90% of Selected Nominal
Voltage
S1/S2 Breaker Over Voltage
Return
110% of Selected Nominal
Voltage
110% of Selected Nominal
Voltage
S1/S2 Breaker Over Voltage Trip
120% of Selected Nominal
Voltage
120% of Selected Nominal
Voltage