Woodward LS-5 Series User manual

37540_C
User Manual
Software Version 1.0202
Manual 37540_C
LS-5 Series |LS-521 V2 (Option K12)
Circuit Breaker Control

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
Page 2/125 © Woodward
WARNING
Read this entire manual and all other publications pertaining to the work to be performed before in-
stalling, operating, or servicing this equipment. Practice all plant and safety instructions and precau-
tions. Failure to follow instructions can cause personal injury and/or property damage.
The engine, turbine, or other type of prime mover should be equipped with an overspeed (overtempera-
ture, or overpressure, where applicable) shutdown device(s), that operates totally independently of the
prime mover control device(s) to protect against runaway or damage to the engine, turbine, or other
type of prime mover with possible personal injury or loss of life should the mechanical-hydraulic gov-
ernor(s) or electric control(s), the actuator(s), fuel control(s), the driving mechanism(s), the linkage(s),
or the controlled device(s) fail.
Any unauthorized modifications to or use of this equipment outside its specified mechanical, electrical,
or other operating limits may cause personal injury and/or property damage, including damage to the
equipment. Any such unauthorized modifications: (i) constitute "misuse" and/or "negligence" within
the meaning of the product warranty thereby excluding warranty coverage for any resulting damage,
and (ii) invalidate product certifications or listings.
CAUTION
To prevent damage to a control system that uses an alternator or battery-charging device, make sure
the charging device is turned off before disconnecting the battery from the system.
Electronic controls contain static-sensitive parts. Observe the following precautions to prevent dam-
age to these parts.
Discharge body static before handling the control (with power to the control turned off, contact a
grounded surface and maintain contact while handling the control).
Avoid all plastic, vinyl, and Styrofoam (except antistatic versions) around printed circuit boards.
Do not touch the components or conductors on a printed circuit board with your hands or with
conductive devices.
OUT-OF-DATE PUBLICATION
This publication may have been revised or updated since this copy was produced. To verify that you
have the latest revision, be sure to check the Woodward website:
http://www.woodward.com/pubs/current.pdf
The revision level is shown at the bottom of the front cover after the publication number. The latest
version of most publications is available at:
http://www.woodward.com/publications
If your publication is not there, please contact your customer service representative to get the latest
copy.
Important definitions
WARNING
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, could result in damage to equipment.
NOTE
Provides other helpful information that does not fall under the warning or caution categories.
Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be
correct and reliable. However, Woodward assumes no responsibility unless otherwise expressly undertaken.
© Woodward
All Rights Reserved.

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
© Woodward Page 3/125
Revision History
Rev.
Date
Editor
Changes
C
2017-09
GG
Manual
Table of content had German wording
B
2017-06-26
GG
(Same) software version 1.0202 but new hardware version 2
New device features & updates
Six current transformers/CT input terminals
Manual
Hardware related information updated for new version 2; e.g. Front Foil colors and
six instead of four CT terminals.
A
2013-03-01
GG
New device features & updates
Undesired breaker close for synchronization when one system is configured to
1Ph2Wandthe other system to 3Ph4W: problem solved.
Manual
New overview table for synchronization matches System A with Sytem B.
Refer to “Synchronization Of System A and System B”on page 118 for details.
NEW
2012-08-30
GG
Release
Content
CHAPTER 1GENERAL INFORMATION ........................................................................................ 9
Document Overview.................................................................................................................................9
CHAPTER 2INSTALLATION..................................................................................................... 10
Electrostatic Discharge Awareness .......................................................................................................10
Marine Usage.........................................................................................................................................11
Application ...................................................................................................................................11
Housing Type.........................................................................................................................................12
Plastic Housing ............................................................................................................................13
Wiring Diagram ......................................................................................................................................17
Connections ...........................................................................................................................................18
Power Supply.........................................................................................................................................19
Voltage Measuring.................................................................................................................................20
Voltage Measuring: System A .....................................................................................................20
Voltage Measuring: System B .....................................................................................................27
Current Measuring .................................................................................................................................33
System A Current.........................................................................................................................33
Power Measuring ...................................................................................................................................35
Power Factor Definition..........................................................................................................................35
Discrete Inputs .......................................................................................................................................37
Discrete Inputs: Signal Polarity....................................................................................................37
Discrete Inputs: Operation Logic .................................................................................................38
Relay Outputs (LogicsManager) ............................................................................................................39
Interfaces................................................................................................................................................41
Service Port .................................................................................................................................41
CAN Bus Interface.......................................................................................................................43
Bus Shielding...............................................................................................................................44

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
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CHAPTER 3CONFIGURATION..................................................................................................45
Configuration Via Front Panel ............................................................................................................... 45
Configuration Via PC ............................................................................................................................. 46
Install ToolKit Configuration and Visualization Software............................................................. 46
Install ToolKit Software................................................................................................................ 46
Install ToolKit Configuration Files................................................................................................ 47
Starting ToolKit Software............................................................................................................. 48
Configure ToolKit Software ......................................................................................................... 49
Connect ToolKit and the LS-5 Unit.............................................................................................. 50
View LS-5 Data with ToolKit........................................................................................................ 52
Configure the LS-5 with ToolKit................................................................................................... 53
Parameters ............................................................................................................................................ 54
Language / Clock Configuration.................................................................................................. 54
Display Configuration .................................................................................................................. 56
Enter Password........................................................................................................................... 57
System Management................................................................................................................... 58
System Management: Password System ................................................................................... 59
Configuration............................................................................................................................... 60
CHAPTER 4OPERATION.........................................................................................................82
Screen Structure.................................................................................................................................... 85
Navigation.............................................................................................................................................. 86
Alarm List..................................................................................................................................... 86
Parameter.................................................................................................................................... 86
Main Menu................................................................................................................................... 88
Display Messages.................................................................................................................................. 92
Status Messages......................................................................................................................... 92
Alarm Messages.......................................................................................................................... 92
CHAPTER 5INTERFACE..........................................................................................................93
Interfaces Overview............................................................................................................................... 93
CAN Interface.............................................................................................................................. 93
Serial Interfaces........................................................................................................................... 94
Protocols Overview................................................................................................................................ 95
CANopen..................................................................................................................................... 95
CHAPTER 6TECHNICAL DATA ................................................................................................96
Environmental Data............................................................................................................................... 99
Accuracy.............................................................................................................................................. 100
APPENDIX A. USEFUL INFORMATION..................................................................................... 101
Connecting 24 V Relays...................................................................................................................... 101
APPENDIX B. MISCELLANEOUS ............................................................................................103
Alarm Classes...................................................................................................................................... 103
APPENDIX C. LOGICSMANAGER ...........................................................................................104
Logical Symbols................................................................................................................................... 106
Logical Outputs.................................................................................................................................... 107
Logical Outputs: Internal Functions........................................................................................... 107
Logical Outputs: Relay Outputs................................................................................................. 107
Logical Command Variables................................................................................................................ 108
Logical Command Variables: Group 00: Flags Condition 1...................................................... 109
Logical Command Variables: Group 01: Alarm System............................................................ 110
Logical Command Variables: Group 02: Systems Condition.................................................... 111
Logical Command Variables: Group 04: Applications Condition .............................................. 112
Logical Command Variables: Group 05: Device Related Alarms ............................................. 113
Logical Command Variables: Group 06: System B Related Alarms......................................... 113
Logical Command Variables: Group 07: System A Related Alarms......................................... 113
Logical Command Variables: Group 08: System Related Alarms ............................................ 113
Logical Command Variables: Group 09: Discrete Inputs.......................................................... 114
Logical Command Variables: Group 13: Discrete Outputs ....................................................... 114

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
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APPENDIX D. DATA PROTOCOLS.......................................................................................... 115
CANopen ...................................................................................................................................115
APPENDIX E. ADDITIONAL INFORMATION .............................................................................. 118
Synchronization Of System A and System B ............................................................................118
APPENDIX F. EVENT HISTORY .............................................................................................. 119
Resetting the Event History.......................................................................................................119
SERVICE OPTIONS............................................................................................................... 122
Product Service Options ......................................................................................................................122
Returning Equipment For Repair .........................................................................................................122
Packing A Control......................................................................................................................123
Return Authorization Number RAN............................................................................................123
Replacement Parts...............................................................................................................................123
Engineering Services ...........................................................................................................................123
How To Contact Woodward.................................................................................................................123
Technical Assistance ...........................................................................................................................124

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Figures and Tables
Figures
Figure 2-1: Housing - panel-board cutout................................................................................................................................. 13
Figure 2-2: Plastic housing LS-521 V2 –dimensions............................................................................................................... 14
Figure 2-3: Plastic housing - drill plan...................................................................................................................................... 16
Figure 2-4: LS-521 V2 (Option K12) - wiring diagram............................................................................................................ 17
Figure 2-5: Power supply.......................................................................................................................................................... 19
Figure 2-6: Power supply - crank waveform at maximum load................................................................................................ 19
Figure 2-7: Voltage measuring –system A............................................................................................................................... 20
Figure 2-8: Voltage measuring –system A windings, 3Ph 4W OD.......................................................................................... 21
Figure 2-9: Voltage measuring –system A measuring inputs, 3Ph 4W OD............................................................................. 21
Figure 2-10: Voltage measuring –system A windings, 3Ph 4W .............................................................................................. 22
Figure 2-11: Voltage measuring –system A measuring inputs, 3Ph 4W.................................................................................. 22
Figure 2-12: Voltage measuring –system A windings, 3Ph 3W .............................................................................................. 23
Figure 2-13: Voltage measuring –system A measuring inputs, 3Ph 3W.................................................................................. 23
Figure 2-14: Voltage measuring –system A windings, 1Ph 3W .............................................................................................. 24
Figure 2-15: Voltage measuring –system A measuring inputs, 1Ph 3W.................................................................................. 24
Figure 2-16: Voltage measuring –system A windings, 1Ph 2W (phase-neutral)...................................................................... 25
Figure 2-17: Voltage measuring –system A measuring inputs, 1Ph 2W (phase-neutral)......................................................... 25
Figure 2-18: Voltage measuring –system A windings, 1Ph 2W (phase-phase)........................................................................ 26
Figure 2-19: Voltage measuring –system A measuring inputs, 1Ph 2W (phase-phase)........................................................... 26
Figure 2-20: Voltage measuring –system B............................................................................................................................. 27
Figure 2-21: Voltage measuring –system B PT windings, 3Ph 4W......................................................................................... 28
Figure 2-22: Voltage measuring –system B measuring inputs, 3Ph 4W.................................................................................. 28
Figure 2-23: Voltage measuring –system B PT windings, 3Ph 3W......................................................................................... 29
Figure 2-24: Voltage measuring –system B measuring inputs, 3Ph 3W.................................................................................. 29
Figure 2-25: Voltage measuring –system B PT windings, 1Ph 3W......................................................................................... 30
Figure 2-26: Voltage measuring - mains system B measuring inputs, 1Ph 3W ........................................................................ 30
Figure 2-27: Voltage measuring –system B PT windings, 1Ph 2W (phase-neutral)................................................................ 31
Figure 2-28: Voltage measuring –system B measuring inputs, 1Ph 2W (phase-neutral)......................................................... 31
Figure 2-29: Voltage measuring –system B PT windings, 1Ph 2W (phase-phase).................................................................. 32
Figure 2-30: Voltage measuring –system B measuring inputs, 1Ph 2W (phase-phase)........................................................... 32
Figure 2-31: Current measuring –System A............................................................................................................................. 33
Figure 2-32: Current measuring –system A, L1 L2 L3............................................................................................................ 34
Figure 2-33: Current measuring –system A, L1 L2 L3............................................................................................................ 34
Figure 2-34: Current measuring –system A, phase Lx............................................................................................................. 34
Figure 2-35: Power measuring - direction of power ................................................................................................................. 35
Figure 2-36: Discrete inputs - alarm/control input - positive signal.......................................................................................... 37
Figure 2-37: Discrete inputs - alarm/control input - negative signal......................................................................................... 37
Figure 2-38: Discrete inputs - alarm/control inputs - operation logic ....................................................................................... 38
Figure 2-39: Relay outputs........................................................................................................................................................ 39
Figure 2-40: Service port connector (RJ-45)............................................................................................................................. 41
Figure 2-41: DPC-USB wiring - schematic .............................................................................................................................. 41
Figure 2-42: DPC-RS-232 wiring - schematic.......................................................................................................................... 42
Figure 2-43: Interfaces - CAN bus - termination ...................................................................................................................... 43
Figure 2-44: Interfaces –shielding (external RC element) ....................................................................................................... 44
Figure 3-1: ToolKit - visualization screen ................................................................................................................................ 52
Figure 3-2: ToolKit - analog value trending screen .................................................................................................................. 52
Figure 3-3: ToolKit - configuration screen ............................................................................................................................... 53
Figure 3-4: Configure display................................................................................................................................................... 56
Figure 4-1: Front panel and display .......................................................................................................................................... 82
Figure 4-2: Screen structure...................................................................................................................................................... 85
Figure 5-1: Interface ovierview................................................................................................................................................. 93
Figure 5-2: CAN interface 1 ..................................................................................................................................................... 93
Figure 5-3: RS-232 interface..................................................................................................................................................... 94
Figure 6-1: Interference suppressing circuit - connection....................................................................................................... 101
Figure 6-2: LogicsManager - function overview .................................................................................................................... 104
Figure 6-3: LogicsManager - display in ToolKit .................................................................................................................... 106
Figure 6-4: LogicsManager - display on LCD screen............................................................................................................. 106

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
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Tables
Table 1-1: Manual - overview..................................................................................................................................................... 9
Table 2-1: Plastic housing - panel cutout.................................................................................................................................. 13
Table 2-2: Conversion chart - wire size .................................................................................................................................... 18
Table 2-3: Power supply - terminal assignment........................................................................................................................ 19
Table 2-4: Voltage measuring - terminal assignment –system A voltage ................................................................................ 20
Table 2-5: Voltage measuring - terminal assignment –system A, 3Ph 4W OD........................................................................ 21
Table 2-6: Voltage measuring - terminal assignment –system A, 3Ph 4W .............................................................................. 22
Table 2-7: Voltage measuring - terminal assignment –system A, 3Ph 3W .............................................................................. 23
Table 2-8: Voltage measuring - terminal assignment –system A, 1Ph 3W .............................................................................. 24
Table 2-9: Voltage measuring - terminal assignment –system A, 1Ph 2W (phase-neutral) ..................................................... 25
Table 2-10: Voltage measuring - terminal assignment –system A, 1Ph 2W (phase-phase)..................................................... 26
Table 2-11: Voltage measuring - terminal assignment –system B voltage............................................................................... 27
Table 2-12: Voltage measuring - terminal assignment –system B, 3Ph 4W ............................................................................ 28
Table 2-13: Voltage measuring - terminal assignment –system B, 3Ph 3W ............................................................................ 29
Table 2-14: Voltage measuring - terminal assignment –system B, 1Ph 3W ............................................................................ 30
Table 2-15: Voltage measuring - terminal assignment –system B, 1Ph 2W (phase-neutral).................................................... 31
Table 2-16: Voltage measuring - terminal assignment –system B, 1Ph 2W (phase-phase) ..................................................... 32
Table 2-17: Current measuring - terminal assignment –system A current ............................................................................... 33
Table 2-18: Current measuring - terminal assignment –system A, phase Lx........................................................................... 34
Table 2-19: Discrete input - terminal assignment ..................................................................................................................... 37
*1 = default value / configurable via LogicsManager ...................................................................................................................................... 37
Table 2-20: Relay outputs - terminal assignment...................................................................................................................... 39
Table 2-21: CAN bus - pin assignment..................................................................................................................................... 43
Table 2-22: Maximum CAN bus length.................................................................................................................................... 44
Table 2-23: Bus shielding ......................................................................................................................................................... 44
Table 3-1: Daylight saving time - configuration example......................................................................................................... 56
Table 3-2: Daylight saving time - examplary dates................................................................................................................... 56
Table 3-3: Calculation of the phase angle deviation ................................................................................................................. 63
Table 3-4: Discrete inputs - parameter IDs ............................................................................................................................... 66
Table 3-5: Relay outputs - assignment...................................................................................................................................... 67
Table 3-6: Discrete outputs - parameter IDs ............................................................................................................................. 67
Table 4-1: Measuring values..................................................................................................................................................... 84
Table 4-2: Message IDs for discrete inputs............................................................................................................................... 92
Table 6-1: Interference suppressing circuit for relays............................................................................................................. 102
Table 6-2: LogicsManager - command overview ................................................................................................................... 105
Table 6-3: LogicsManager - logical symbols.......................................................................................................................... 106
Table 6-4: Relay outputs - terminal assignment...................................................................................................................... 107
Table 6-5: Synchronization of two systems ............................................................................................................................ 118
Table 6-6: Event history - event list........................................................................................................................................ 121

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Glossary And List Of Abbreviations
CB Circuit Breaker
CL Code Level
CT Current Transformer
DI Discrete Input
DO Discrete (Relay) Output
ECU Engine Control Unit
FMI Failure Mode Indicator
GCB Generator Circuit Breaker
I Current
IOP Isolated Operation in Parallel
LDSS Load-Dependent Start/Stop operation
MCB Mains Circuit Breaker
MOP Mains Operation in Parallel
MPU Magnetic Pickup Unit
N.C. Normally Closed (break) contact
N.O. Normally Open (make) contact
OC Occurrence Count
P Real power
P/N Part Number
PF Power Factor
PF Power factor
PID Proportional Integral Derivative controller
PLC Programmable Logic Control
PT Potential (Voltage) Transformer
Q Reactive power
S Apparent power
S/N Serial Number
SPN Suspect Parameter Number
V Voltage

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Chapter 1
General Information
Document Overview
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
This manual describes the LS-521 V2 (Option K12) circuit breaker control.
Type
English
German
LS-5
LS-521 V2 (Option K12) –User Manual
this manual 
37540
-
Table 1-1: Manual - overview
Intended Use
The unit must only be operated in the manner described by this manual. The prerequisite for a proper and safe
operation of the product is correct transportation, storage, and installation as well as careful operation and
maintenance.
NOTE
This manual has been developed for a unit fitted with all available options. Inputs/outputs, functions,
configuration screens, and other details described, which do not exist on your unit, may be ignored.
The present manual has been prepared to enable the installation and commissioning of the unit. Due to
the large variety of parameter settings, it is not possible to cover every combination. The manual is
therefore only a guide. In case of incorrect entries or a total loss of functions, the default settings may
be taken from the Parameter List which can be found in the appendix or from ToolKit and the respec-
tive *.SID file.

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Chapter 2
Installation
Electrostatic Discharge Awareness
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
All electronic equipment is static-sensitive, some components more than others. To protect these components
from static damage, you must take special precautions to minimize or eliminate electrostatic discharges.
Follow these precautions when working with or near the control.
1. Before doing maintenance on the electronic control, discharge the static electricity on your body to ground
by touching and holding a grounded metal object (pipes, cabinets, equipment, etc.).
2. Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials.
Wear cotton or cotton-blend materials as much as possible because these do not store static electric charg-
es as easily as synthetics.
3. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam cups, cigarette packages, cello-
phane wrappers, vinyl books or folders, plastic bottles, etc.) away from the control, modules, and work ar-
ea as much as possible.
4. Opening the control cover may void the unit warranty.
Do not remove the printed circuit board (PCB) from the control cabinet unless absolutely necessary. If you
must remove the PCB from the control cabinet, follow these precautions:
Ensure that the device is completely voltage-free (all connectors have to be disconnected).
Do not touch any part of the PCB except the edges.
Do not touch the electrical conductors, connectors, or components with conductive devices or with
bare hands.
When replacing a PCB, keep the new PCB in the plastic antistatic protective bag it comes in until you
are ready to install it. Immediately after removing the old PCB from the control cabinet, place it in the
antistatic protective bag.
CAUTION
To prevent damage to electronic components caused by improper handling, read and observe the pre-
cautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed
Circuit Boards, and Modules.

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Marine Usage
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CAUTION
The following notes are very important for marine usage of the LS-5 circuit breaker control and have to
be followed.
Application
The LS-5 Series has no internally isolated power supply.
For marine applications an EMI filter (i.e. SCHAFFNER - FN 2070-3-06) must be connected ahead of the power
supply input.
To meet the functional safety requirements of the application, the rules of marine classification independent protec-
tive devices must be applied.

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Housing Type
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
The LS-521 V2 (Option K12) control is available with the following housing type.
LS-521 V2 - Plastic housing with LCD display.
Front panel mounting.

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Plastic Housing
Panel Cutout
Figure 2-1: Housing - panel-board cutout
Measure
Description
Tolerance
H
Height
Total
171 mm
---
h
Panel cutout
138 mm
+ 1.0 mm
h'
Housing dimension
136 mm
W
Width
Total
219 mm
---
w
Panel cutout
186 mm
+ 1.1 mm
w'
Housing dimension
184 mm
Depth
Total
61 mm
---
Table 2-1: Plastic housing - panel cutout
The maximum permissible corner radius is 3.5 mm.
Refer to Figure 2-3 on page 16 for a cutout drawing.

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Dimensions
Figure 2-2: Plastic housing LS-521 V2 –dimensions

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Clamp Fastener Installation
For installation into a panel door with the fastening clamps, please proceed as follows:
1.
Panel cutout
Cut out the panel according to the dimensions in Figure 2-1.
Note: It is not necessary to drill the holes if the fastening clamps are used.
2.
Remove terminals
Loosen the wire connection terminal screws on the back of the unit and
remove the wire connection terminal strip if required.
3.
Insert screws in clamps
Insert the four clamping screws into the clamp inserts from the shown
side (opposite of the nut insert) until they are almost flush. Do not com-
pletely insert the screws into the clamp inserts.
4.
Insert unit into cutout
Insert the unit into the panel cutout. Verify that the unit fits correctly in
the cutout. If the panel cutout is not big enough, enlarge it accordingly.
5.
Attach clamp inserts
Re-install the clamp inserts by tilting the insert to a 45° angle. (1) Insert
the nose of the insert into the slot on the side of the housing. (2) Raise the
clamp insert so that it is parallel to the control panel.
6.
Tighten clamping screws
Tighten the clamping screws (1) until the control unit is secured to the
control panel (2). Over tightening of these screws may result in the clamp
inserts or the housing breaking. Do not exceed the recommended tighten-
ing torque of 0.1 Nm (0.9 pound-force inches).
7.
Reattach terminals
Reattach the wire connection terminal strip (1) and secure them with the
side screws.

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Screw Kit Installation
In order to enhance the protection of the front to IP 65, it is possible to fasten the unit with a screw kit instead of
the clamp fastener hardware.
Proceed as follows to install the unit using the screw kit:
1. Cut out the panel and drill the holes according to the dimensions in Figure 2-3.
2. Insert the unit into the panel cutout. Verify that the unit fits correctly in the cutout. If the panel cutout is
not big enough, enlarge it accordingly.
3. Insert the screws and tighten to 0.6 Nm (5.3 pound inches) of torque. Tighten the screws with a cross-
wise pattern to ensure even pressure distribution.
NOTE
If the thickness of the panel sheet exceeds 2.5 mm, be sure to use screws with a length of the panel
sheet thickness + 4 mm.
Figure 2-3: Plastic housing - drill plan

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Wiring Diagram
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Figure 2-4: LS-521 V2 (Option K12) - wiring diagram

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Connections
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WARNING
All technical data and ratings indicated in this chapter are not definite! Only the values indicated in
Chapter 6: Technical Data on page 96 are valid!
The following chart may be used to convert square millimeters [mm²] to AWG and vice versa:
AWG
mm²
AWG
mm²
AWG
mm²
AWG
mm²
AWG
mm²
AWG
mm²
30
0.05
21
0.38
14
2.5
4
25
3/0
95
600MCM
300
28
0.08
20
0.5
12
4
2
35
4/0
120
750MCM
400
26
0.14
18
0.75
10
6
1
50
300MCM
150
1000MCM
500
24
0.25
17
1.0
8
10
1/0
55
350MCM
185
22
0.34
16
1.5
6
16
2/0
70
500MCM
240
Table 2-2: Conversion chart - wire size

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Power Supply
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WARNING –Protective Earth / Function Earth
Protective Earth (PE) / Function Earth must be connected to the unit to avoid the risk of electric shock.
The conductor providing the connection must have a wire larger than or equal to 2.5 mm² (14 AWG).
The connection must be performed properly.
This function earth connection will be made using the screw-plug-terminal 55.
Figure 2-5: Power supply
Figure
Terminal
Description
Amax
A
55
Function earth
2.5 mm²
B
53
12/24Vdc (8 to 40.0 Vdc)
2.5 mm²
C
54
0 Vdc
2.5 mm²
Table 2-3: Power supply - terminal assignment
Figure 2-6: Power supply - crank waveform at maximum load
NOTE
Woodward recommends to use one of the following slow-acting protective devices in the supply line to
terminal 53:
Fuse NEOZED D01 6A or equivalent
or
Miniature Circuit Breaker 6A / Type C (for example: ABB type: S271C6 or equivalent)

Manual 37540_C LS-521 V2 (Option K12) - Circuit Breaker Control
Page 20/125 © Woodward
Voltage Measuring
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NOTE
DO NOT use both sets of voltage measuring inputs. The control unit will not measure voltage correctly
if the 120 V and 480 V inputs are utilized simultaneously.
NOTE
Woodward recommends protecting the voltage measuring inputs with slow-acting fuses rated for 2 to
6 A.
Voltage Measuring: System A
Figure 2-7: Voltage measuring –system A
Figure
Terminal
Description
Amax
A
14
System A Voltage L1
120 Vac
2.5 mm²
B
15
480 Vac
2.5 mm²
C
16
System A Voltage L2
120 Vac
2.5 mm²
D
17
480 Vac
2.5 mm²
E
18
System A Voltage L3
120 Vac
2.5 mm²
F
19
480 Vac
2.5 mm²
G
20
System A Voltage N
120 Vac
2.5 mm²
H
21
480 Vac
2.5 mm²
Table 2-4: Voltage measuring - terminal assignment –system A voltage
NOTE
If parameter 1800 ("SyA. PT sec. rated voltage", refer to Chapter 3: Configuration is configured with a
value between 50 and 130 V, the 120 V input terminals must be used for proper measurement.
If parameter 1800 ("SyA. PT sec. rated voltage", refer to Chapter 3: Configuration is configured with a
value between 131 and 480 V, the 480 V input terminals must be used for proper measurement.