Woodward MFR 15 User manual

37143A
Manual
Software Version 1.9xx / 2.0xx / 2.1xx / 3.0xx / 3.1xx
Manual 37143A
MFR 15
Protection Relay & Control

Manual 37143A MFR 15 - Protection Relay & Control
Page 2/119 © Woodward
WARNING
Read this entire manual and all other publications pertaining to the work to be performed before install-
ing, operating, or servicing this equipment. Practice all plant and safety instructions and precautions.
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OUT-OF-DATE PUBLICATION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 37143A MFR 15 - Protection Relay & Control
© Woodward Page 3/119
Revision History
Rev. Date Editor Changes
NEW 03-05-08 Tr Release
A 07-07-17 TP Update to reflect new format, minor corrections, and language revision, MFR 14 references removed
INACTIVE – FOR REFERENCE ONLY
The information in this publication is no longer current, and may not reflect changes or safety issues
that have occurred since the publication was originally released.
Refer to the MFR 15 Packages manual 37354 for more recent information about the MFR 15 unit.
Contents
CHAPTER 1. GENERAL INFORMATION.........................................................................................7
Introduction .............................................................................................................................................7
Measurement Value Logging..................................................................................................................8
Extent of Functions .................................................................................................................................9
CHAPTER 2. ELECTROSTATIC DISCHARGE AWARENESS...........................................................10
CHAPTER 3. INSTALLATION .....................................................................................................11
Wiring Diagram up to Version 1.9xx / 2.0xx..........................................................................................11
Wiring Diagram from Version 3.0xx / 3.1xx ..........................................................................................12
Power Supply (Standard)......................................................................................................................13
Wide Range Power Supply (Option N) .................................................................................................13
Measuring Inputs...................................................................................................................................14
Generator Voltage ......................................................................................................................14
Synchronizing Voltage (Option Y) ..............................................................................................14
Current ........................................................................................................................................15
Auxiliary and Control Inputs ..................................................................................................................16
Discrete Inputs............................................................................................................................16
Analog Inputs (Options X,B) ......................................................................................................16
Auxiliary and Control Outputs ...............................................................................................................17
Relay Outputs .............................................................................................................................17
Pulse Output (Option M) .............................................................................................................17
Analog Outputs (Option A1 to A8) ..............................................................................................18
Controller Outputs.......................................................................................................................19
Interface (Options SU/SB/SF)...............................................................................................................20
CAN Bus Shielding .....................................................................................................................20
CAN Bus Topology .....................................................................................................................21
DPC - Direct Configuration Interface ..........................................................................................22

Manual 37143A MFR 15 - Protection Relay & Control
Page 4/119 © Woodward
CHAPTER 4. FUNCTIONAL DESCRIPTION.................................................................................. 23
Control Inputs ....................................................................................................................................... 23
General Control Inputs ............................................................................................................... 23
Control Inputs (Option Y)............................................................................................................ 24
Control Inputs (Option G [GU/GF])............................................................................................. 24
Control Outputs..................................................................................................................................... 25
Functional Table ................................................................................................................................... 26
Definition of the Operating Modes (Option Y) ...................................................................................... 27
No-Load Control ......................................................................................................................... 27
Isolated Operation ...................................................................................................................... 27
Synchronization of Circuit Breaker............................................................................................. 27
Dead Bus Closure of Circuit Breaker (Close CB Without Synchronization) .............................. 27
Power Control (Option B) and Power Factor Control (Option C) ............................................... 27
Direction of power................................................................................................................................. 28
Power Factor Definition ........................................................................................................................ 29
Alarms................................................................................................................................................... 31
Alarm Messages......................................................................................................................... 31
Alarm Acknowledgement............................................................................................................ 31
CHAPTER 5. DISPLAY AND OPERATING ELEMENTS .................................................................. 32
Brief Description of LEDs and Push Buttons........................................................................................ 32
LEDs ..................................................................................................................................................... 33
Push Buttons ........................................................................................................................................ 34
LCDisplay ............................................................................................................................................. 35
Display in Automatic Mode (First Line of the Display: Measured Values) ................................. 35
Display in Automatic Mode (Second Line of the Display: Measured Values)............................ 35
Display in Automatic Mode (Second Line of the Display: Alarm Indication) .............................. 36
CHAPTER 6. CONFIGURATION ................................................................................................. 37
Basic Data ............................................................................................................................................ 38
Configuration Access............................................................................................................................ 38
Sealing (Until Version 1.9xx)...................................................................................................... 38
Password (Starting with Version 2.0xx / 3.0xx).......................................................................... 40
Change Passwords .................................................................................................................... 41
Direct Configuration (from Version 3.0xx) ............................................................................................ 42
Measurement........................................................................................................................................ 43
Voltage Measurement ................................................................................................................ 43
Potential Transformer Configuration .......................................................................................... 43
Current Measurement ................................................................................................................ 44
Rated Values.............................................................................................................................. 44
Power Measurement .................................................................................................................. 45
Control Functions ................................................................................................................................. 46
Synchronization (Option Y) ........................................................................................................ 46
Dead Bus Closure (Option Y)..................................................................................................... 48
No-Load Control ......................................................................................................................... 49
Frequency Controller (Option Y/G/GF) ...................................................................................... 49
Active Power Controller (Option B) ............................................................................................ 51
Voltage Controller (Option Y/G/GU)........................................................................................... 54
Power-Factor Controller (Option C) ........................................................................................... 56
Shutdown.................................................................................................................................... 59
Active Power Distribution (Option W)......................................................................................... 60
Reactive Power Distribution (Option O) ..................................................................................... 61
Type of Monitoring................................................................................................................................ 62
Protection.............................................................................................................................................. 63
Overvoltage Monitoring (Option U) ............................................................................................ 63
Undervoltage Monitoring (Option U) .......................................................................................... 64
Voltage Asymmetry Monitoring (Option U)................................................................................. 65
Overfrequency Monitoring (Option U) ........................................................................................ 66
Underfrequency Monitoring (Option U) ...................................................................................... 67

Manual 37143A MFR 15 - Protection Relay & Control
© Woodward Page 5/119
Vector / Phase Shift Monitoring (Option V).................................................................................68
df/dt (ROCOF) Monitoring (Option D).........................................................................................69
Independent Time-Overcurrent Monitoring (Option IS/IZ)..........................................................70
Overload Monitoring (Option PM)...............................................................................................72
Reverse/Reduced Power Monitoring (Option PM) .....................................................................73
Unbalanced Load Monitoring (Option PS)..................................................................................74
Power Factor Monitoring (option ZC) .........................................................................................75
Reactive Power Monitoring (Option ZQ).....................................................................................76
Load Shift Monitoring (Option ZW) .............................................................................................77
Power Limit Monitoring (Option PZ) ...........................................................................................78
Busbar Voltage Monitoring (Option US) .....................................................................................79
Busbar Frequency Monitoring (Option US) ................................................................................80
Relay Configuration...............................................................................................................................81
Auto Acknowledgement of the Relays........................................................................................82
Auto Acknowledgement of Messages ........................................................................................83
Changing the Relay Assignment (Relay Manager) ....................................................................83
Pulse Output of the Positive Active Energy (Option M) ........................................................................85
Analog Outputs (Options A1/2/3/4/6/8).................................................................................................86
Interface (Options SU/SB) ....................................................................................................................88
Screens for Protocol DK3964 (Option SU).................................................................................88
Screens for Protocol Profibus DP Slave (Option SU).................................................................88
Screens for Protocol Modbus RTU Slave (Option SU/SB).........................................................88
Screens for Protocol CAN Bus (Options SU/SB) .......................................................................89
General Screens for All Interfaces (Option SB)..........................................................................90
CHAPTER 7. COMMISSIONING ..................................................................................................91
APPENDIX A. DIMENSIONS ......................................................................................................93
APPENDIX B. TECHNICAL DATA ...............................................................................................94
APPENDIX C. MEASURED QUANTITIES AND ACCURACY ............................................................96
APPENDIX D. INTERFACE TELEGRAM .......................................................................................97
Communication Interface Addresses....................................................................................................97
Transmission Message...............................................................................................................97
Receive Message .....................................................................................................................100
Description of the Data Format ...........................................................................................................101
Examples ..................................................................................................................................102
Bit Change at Tripping of a Watchdog Function.......................................................................102
Framework Data for the Interfaces .....................................................................................................103
Framework Data for Procedure 3964 (TTY, RS-232, RS-485) ................................................103
Framework Data for Hardware Handshaking RTS/CTS (RS-232, RS-422) ............................103
Framework Data for Modbus RTU Slave..................................................................................103
Framework Data for CAN Bus ..................................................................................................104
Framework Data for Profibus DP..............................................................................................105
APPENDIX E. LIST OF PARAMETERS ......................................................................................106
APPENDIX F. SERVICE OPTIONS ............................................................................................114
Product Service Options .....................................................................................................................114
Returning Equipment for Repair .........................................................................................................114
Packing a Control .....................................................................................................................115
Return Authorization Number RAN ..........................................................................................115
Replacement Parts..............................................................................................................................115
How to Contact Woodward .................................................................................................................116
Engineering Services ..........................................................................................................................117
Technical Assistance ..........................................................................................................................118

Manual 37143A MFR 15 - Protection Relay & Control
Page 6/119 © Woodward
Illustrations and Tables
Illustrations
Figure 3-1: Wiring diagram up to version 1.9xx / 2.0xx..........................................................................................................11
Figure 3-2: Wiring diagram from version 3.0xx / 3.1xx..........................................................................................................12
Figure 3-3: Power supply.........................................................................................................................................................13
Figure 3-4: Wide range power supply......................................................................................................................................13
Figure 3-5: Measuring inputs - voltage....................................................................................................................................14
Figure 3-6: Measuring inputs - synchronizing voltage ............................................................................................................14
Figure 3-7: Measuring inputs - current ....................................................................................................................................15
Figure 3-8: Discrete inputs.......................................................................................................................................................16
Figure 3-9: Relay outputs ........................................................................................................................................................17
Figure 3-10: Pulse output.........................................................................................................................................................17
Figure 3-11: Analog outputs....................................................................................................................................................18
Figure 3-12: Interfaces.............................................................................................................................................................20
Figure 3-13: Interface - CAN bus shielding.............................................................................................................................20
Figure 3-14: Interfaces - CAN bus topology............................................................................................................................21
Figure 4-1: 'Direction of power................................................................................................................................................28
Figure 5-1: Front panel............................................................................................................................................................32
Figure 6-1: Diagram for independent time-overcurrent monitoring ........................................................................................70
Figure 7-1: Dimensions............................................................................................................................................................93
Figure 7-2: Interface, cosphi scaling......................................................................................................................................101
Figure 7–3: Interface - Modbus connection........................................................................................................................... 103
Figure 7-4: Interface, Profibus DP slave................................................................................................................................105
Tables
Table 3-1: Conversion chart - wire size...................................................................................................................................13
Table 3-2: Maximum CAN bus length.....................................................................................................................................21
Table 4-1: Operating modes - functional table ........................................................................................................................26
Table 4-2: Operating mode conditions.....................................................................................................................................26
Table 4-3: Alarms....................................................................................................................................................................31
Table 5-1: Alarms....................................................................................................................................................................36
Table 6-1: Release delay of the relays.....................................................................................................................................82
Table 6-2: Protective device output to relay............................................................................................................................84
Table 6-3: Analog outputs, table of values..............................................................................................................................86
Table 7-1: Analog outputs, table of values............................................................................................................................113

Manual 37143A MFR 15 - Protection Relay & Control
© Woodward Page 7/119
Chapter 1.
General Information
Introduction
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
The MFR 15 model combines a synchronizer, load (kW) and power factor control via discrete outputs, and gen-
erator protection and control into one unit. Different packages offer additional functionality.
The detailed model description for the MFR 15 reads as follows:
MFR1515-h0000B/
A
BDEF..Z
Options according to list of options.
These options can be found in the manual. Each chapter headline points out
if the described function is standard or has to be ordered optionally.
Mounting [B].. Flush-mounting
[M].. DIN-rail/rear panel mounting
Hardware variation
non-standard models; e.g. additional relays
Current transformer, secondary
[0] = not available
[1] = ../1 A
[5] = ../5 A
Voltage transformer/PT's, secondary
[0] = not available
[1] = 100 Vac
[4] = 400 Vac
Type
Example:
•MFR1541B/A3BCIZMPMPSUXYZQ (flush mounted, standard unit with 400 Vac PT and ../1A CT inputs
with Options A3 [3 analog outputs], B [constant real power control], C [power factor control], IZ [independ-
ent time-overcurrent monitoring], M [pulse output for kWh], PM [reverse/reduced load and overload moni-
toring], PS [unbalanced load monitoring], U [over-/undervoltage, over-/underfrequency, and voltage asym-
metry monitoring], X [analog input for external set point], Y [synchronisation], and ZQ [reactive power
monitoring])
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 op-
eration and maintenance.
NOTE
This manual has been developed for all available packages. 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 list of parameters enclosed at the rear of this manual.

Manual 37143A MFR 15 - Protection Relay & Control
Page 8/119 © Woodward
Measurement Value Logging
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Voltage
Voltage is displayed as three-phase r.m.s measurement of the phase-neutral and/or phase-phase voltages.
Option Y utilizes single-phase r.m.s. measurement of the synchronizing voltage VL1-L2.
This device can be ordered with the following measuring voltage input ranges (rated voltages). Please indi-
cate the measuring voltage input required when ordering (refer to Technical Data on page 94):
• 66 V/115 V.................... [1]
• 230 V/400 V.................... [4]
Frequency
Frequency measurement is extracted from the digitally filtered measuring voltages. The frequency is meas-
ured three-phase if the measured voltage exceeds 15% of the nominal voltage. This ensures rapid and precise
measurement of the frequency. However the frequency is still measured correctly even if voltage is only ap-
plied to one phase.
Current
Three-phase measurement of the r.m.s. value.
- ../1 A...................................... [1]
- ../5 A...................................... [5]
Active power
The active power is measured though real time multiplication of either the three phase-to-neutral voltages and
the three-phase conductor currents or single-phase measurement of voltage V12 and the current I1.
Reactive power
The reactive power is calculated from the measured single-phase voltage V12 and the single-phase current I1.
Power factor
Power factor is calculated time difference between the digitally filtered voltage V12 and current I1. The power
factor is accurately measured for both clockwise and counter-clockwise phase sequences.
Active energy
Active energy combines a time measurement with the measured positive active load. The counter is incorpo-
rated in the non-volatile memory and only computes positive energy. The memory is updated every 3 minutes
with a resolution of 0.1 kWh. The unit automatically increases the engineering unit of measure when the
maximum value has been reached. This permits a measuring range up to 4,290 GWh. This counter is not
Physikalisch-Technische Bundesanstalt (PTB) calibrated.

Manual 37143A MFR 15 - Protection Relay & Control
© Woodward Page 9/119
Extent of Functions
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Depending on the model, the unit is equipped with the following functions:
Function Option Package
SY SYN SYN-I
General functions
2 relay outputs, freely configurable (change-over contacts) Standard 999
1 ready for operation relay output (normally open contact) Standard 999
Discrete input for blocking or acknowledgment Standard 999
Sealing function (software, up to version 1.9xx) Standard 999
Password system (software, starting version 2.0xx) Standard 999
3 analog outputs - 20/0/4 to +20 mA A3 99
Open-collector pulse output for kWh M 99
Interface, bi-directional SB 9#
4-digit maximum control inputs G/Y 999
#= RS485/MOD-Bus RTU Slave
Protective functions
Three phase over / under voltage monitoring (2 levels) V>, V< U 999
Three-phase over / under frequency monitoring (2 levels) f>, f< U 999
Voltage asymmetry monitoring Vas> U 999
Overload monitoring P> PM 999
Reverse/reduced power monitoring -P<, P< PM 999
Unbalanced load monitoring Ias> PS 999
Reactive power monitoring (loss of excitation monitoring) -Q<, Q> ZQ 999
Independent time-overcurrent monitoring I>, I>>, I>>> IZ 999
Control / synchronization functions
Synchronization of a power circuit breaker with voltage and frequency balancing Y 999
Closing to a de-energized busbar (dead bus start) with a separate release signal Y 999
Controlling a separate network at constant voltage and frequency G/Y 999
Constant active power controlling B 999
Power factor controlling C 999
Active power sharing W 999
Analog input 0/4 to 20 mA for external set point X 999
Packages
MFR 15 with Options A3-B-C-IZ-M-PM-PS-U-X-Y-ZQ 9
MFR 15 with Options A3-B-C-IZ-M-PM-PS-U-W-X-Y-ZQ
9
MFR 15 with Options B-C-IZ-PM-PS-SB-U-W-X-Y-ZQ
9

Manual 37143A MFR 15 - Protection Relay & Control
Page 10/119 © Woodward
Chapter 2.
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 char-
ges 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
area 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.

Manual 37143A MFR 15 - Protection Relay & Control
© Woodward Page 11/119
Chapter 3.
Installation
Wiring Diagram up to Version 1.9xx / 2.0xx
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
G / Y YG / Y StandardYStandard
43
not measured
Printed 07/2001; subject to technical modifications.
3
5 7 86 7170
CB
72 323130 7473 75 40 41 42
Synchronization voltage L2
Synchronization voltage L1
0 V DC
24 V DC
Synchronization voltage L3
Generator currrent L2
Generator currrent L1
Y: Isolated operation
G: Setpoint higher
Y: Release CB
G: Release Controller
Common
Common
Reply: CB is open
Y: [<2.0xx] free, [>2.1xx] Remote ack.
G: Setpoint lower
Measuring voltage
three-wire or
four-wire system
x1
x2
Engine
20
3
G
44 445 1 32 1923 24 25 26 27 28 2921 22
SPEED
ACTIVE POWER
Three-position
controller
Analog controller
(PID characteristic)
(Generator voltage N)
Generator currrent L3
alternatively:
00 V
a
raise
201923 24 25 26
Three-position
controller
raise lower
Generator voltage L1
Generator voltage L2
Generator voltage L3
II 0I
aa a
EXCITATION
VOLTAGE
REACTIVE POWER
Analog controller
(PID characteristic)
SYNCHRONIZATION
Impulse or holding relay
alternatively:
V
a
21 22
lower
a
I 0
Possible combinations: A1/A2/A3/A4+S.., A6, A8, S..
52
Analog output 2
A8 A4
+/- 10 V
Reference point terminal 4
+/- 10 V
Auxiliary voltage
75 to 265 V AC or 90 to 300 V DC
Input/output Psum
Analog input (20 mA)
N
NC
W/O X
MFR 15 (until version 1.9xx/2.1xx)
E (open collector)
C (kWh or kvarh impulse)
A1
Relay 2
Relay 1
M
Relay 3
Analog output 1
Common 1 + 2
2001-07-25 MFR 15 Anschlußplan r15leo-2901-ap.skf
17
0
5956 57 5818
20 mA
60 1261 11109
50 51
0
13 161514
+/- 20 mA
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 10 V
+/- 10 V
+/- 20 mA
Analog output 5
A2
A6 A3
A6A8
Common 3 + 4
Analog output 3
Analog output 4
Analog output 1
Analog output 2
Analog output 3
Analog output 5
Analog output 6
Analog output 7
Analog output 8
Analog output 4
Common 5 + 6
Common 7 + 8
S.. S..
Analog output 6
Interface
RS-232, RS-422, RS-485
TTY, MOD bus slave
CAN bus, modem
Profi bus DP
84
Alternatively
53
0
5254 55 50 51 53 54 55
0
0
0
Alternatively
81 82 8381 82 83 84 85 86
0
0
00
0
X1 X2 X386 87 X4 X5
0
X6
[>2.1xx] Blocking of watchdog funct.
[<2.0xx/G] Blocking of watchdog funct. /
remote acknowledgment
x2
x1
x2
x1
Figure 3-1: Wiring diagram up to version 1.9xx / 2.0xx

Manual 37143A MFR 15 - Protection Relay & Control
Page 12/119 © Woodward
Wiring Diagram from Version 3.0xx / 3.1xx
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
G / Y YG / Y StandardY
43
not measured
Printed 07/2001; subject to technical modifications.
3
5 7 86 7170
CB
72 323130 7473 75 40 41 42
[>3.1xx] Blocking of watchdog funct.
[<3.0xx] Blocking of watchdog funct. /
remote acknowledgment
Synchronization voltage L2
Synchronization voltage L1
Synchronization voltage L3
Generator currrent L2
Generator currrent L1
Y: Isolated operation
G: Setpoint higher
Y: Release CB
G: Release Controller
Common
Common
Reply: CB is open
Measuring voltage
three-wire or
four-wire system
x1
x2
Engine
20
3
G
44 445 1 32 1923 24 25 26 27 28 2921 22
SPEED
ACTIVE POWER
Three-position
controller
Analog controller
(PID characteristic)
(Generator voltage N)
Generator currrent L3
alternatively:
00 V
a
raise
201923 24 25 26
Three-position
controller
raise lower
Generator voltage L1
Generator voltage L2
Generator voltage L3
II 0I
aa a
EXCITATION
VOLTAGE
REACTIVE POWER
Analog controller
(PID characteristic)
SYNCHRONIZATION
Impulse or holding relay
alternatively:
V
a
21 22
lower
a
I 0
Possible combinations: A1/A2/A3/A4+S.., A6, A8, S..
52
Analog output 2
A8 A4
+/- 10 V
Reference point terminal 4
+/- 10 V
Input/output Psum
Analog input (20 mA)
NC
W/O X
E (open collector)
C (kWh or kvarh impulse)
A1
Relay 2
Relay 1
M
Relay 3
Analog output 1
Common 1 + 2
2001-07-25 MFR 15 Anschlußplan r15leo-2901-ap.skf
17
0
5956 57 5818
20 mA
60 1261 11109
50 51
0
13 161514
+/- 20 mA
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 10 V
+/- 10 V
+/- 20 mA
Analog output 5
A2
A6 A3
A6A8
Common 3 + 4
Analog output 3
Analog output 4
Analog output 1
Analog output 2
Analog output 3
Analog output 5
Analog output 6
Analog output 7
Analog output 8
Analog output 4
Common 5 + 6
Common 7 + 8
S.. S..
Analog output 6
Interface
RS-232, RS-422, RS-485
TTY, MOD bus slave
CAN bus, modem
Profi bus DP
84
Alternatively
53
0
5254 55 50 51 53 54 55
0
0
0
Alternatively
81 82 8381 82 83 84 85 86
0
0
00
0
X1 X2 X386 87 X4 X5
0
X6
The socket for the PC parameterization is situated
on the side of the unit. This is where the direct
parameterizing cable DPC has to be plugged in.
Std./Opt.N
24 V DC
Option N: 75 to 265 V AC + 90 to 300 V DC
0 V
MFR 15 (from version 3.0xx)
Y: [<3.0xx] free, [>3.1xx] Remote ack.
G: Setpoint lower
x2
x1
x2
x1
Figure 3-2: Wiring diagram from version 3.0xx / 3.1xx

Manual 37143A MFR 15 - Protection Relay & Control
© Woodward Page 13/119
WARNING
All technical data and ratings indicated in this chapter are not definite! Only the values indicated under
Technical Data on page 94 are valid!
CAUTION
A circuit breaker must be provided near to the unit and in a position easily accessible to the operator.
This must also bear a sign identifying it as an isolating switch for the unit.
NOTE
Inductive devices connected to the system (such as operating current coils, undervoltage tripping
units, or auxiliary/power contacts) must be connected to a suitable interference suppressor.
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 3-1: Conversion chart - wire size
Power Supply (Standard)
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
18 to 30 Vdc
7 8
0 V
18 to 30 Vdc
Standard
Power supply
Figure 3-3: Power supply
Terminal Description Amax
Standard power supply unit (Standard)
8 18 to 30 Vdc 2.5 mm²
7 0 V reference point 2.5 mm²
Wide Range Power Supply (Option N)
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
7 8
Wide-range power supply
- / N
+ / L
Power supply
90 to 265 Vac/dc
Figure 3-4: Wide range power supply
Terminal Description Amax
from Version 3.xxx - Wide range power supply unit (Option N)
8 90 to 265 Vac/dc 2.5 mm²
7 0 V reference point 2.5 mm²
up to Version 1.xxx / 2.xxx - Wide range power supply unit (Option N)
17 90 to 265 Vac/dc 2.5 mm²
18 0 V reference point 2.5 mm²

Manual 37143A MFR 15 - Protection Relay & Control
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Measuring Inputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Generator Voltage
Measuring
voltage
L3
L2
L1
N
G
1 2 3 4
L3
L2
L1
N
Figure 3-5: Measuring inputs - voltage
Terminal Measurement Description Amax
1 Measuring voltage L1 2.5 mm²
2 Measuring voltage L2 2.5 mm²
3 Measuring voltage L3 2.5 mm²
4
400V direct
or trans-
former
../100V Neutral point of the 3-phase system/transformer 2.5 mm²
Synchronizing Voltage (Option Y)
NOTE
Connection of the phase voltage L3 to terminal 72 (synchronizing voltage) is necessary if
•the generator voltage is connected as a three-wire-system and
•the power measurement of the generator power must be three-phase.
If the input for balancing the measuring system is not connected, minor inaccuracies will occur during
the three-phase power measurement. Functionality will not be affected if the voltage L3 is not con-
nected and the power measurement is configured as single-phase.
L3
L2
L1
N
G
L3
L2
L1
Synchronizing
voltage
CB
70 71 72
a)
a) not measured
Figure 3-6: Measuring inputs - synchronizing voltage
Terminal Measurement Description Amax
70 Synchronizing voltage L1 2.5 mm²
71 Synchronizing voltage L2 2.5 mm²
72
400V direct
or via transf.
../100V Synchronizing voltage L3 (not measured) 2.5 mm²

Manual 37143A MFR 15 - Protection Relay & Control
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Current
WARNING
Prior to disconnecting the current transformer connections or the connections of the transformer
which are located at the unit, make sure that the transformer is short-circuited.
NOTE
Grounding of the secondary of a current transformer must always be single-sided.
Detail:
Connection of the transducers
Generator
current
../1 A or ../5 A
L3
L2
L1
N
G
S2 S1
s2 (l)
s1 (k)
s2
L..
.. ..
s1
L.. s1 (k)
s2 (l)
s1 (k)
s2 (l) L2
s1 (k)
s2 (l)
4243 40414445
L1
L3
G
Figure 3-7: Measuring inputs - current
Terminal Measurement Description Amax
40 Generator current L1, transformer terminal s1 (k) 4 mm²
41 Generator current L1, transformer terminal s2 (l) 4 mm²
42 Generator current L2, transformer terminal s1 (k) 4 mm²
43 Generator current L2, transformer terminal s2 (l) 4 mm²
44 Generator current L3, transformer terminal s1 (k) 4 mm²
45
Transformer
../1 A or
../5 A
Generator current L3, transformer terminal s2 (l) 4 mm²

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Auxiliary and Control Inputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Discrete Inputs
18 to 250 Vac/dc
Signal device
Discrete input
AB
Figure 3-8: Discrete inputs
Terminal Associated
common Description (according to DIN 40 719 Part 3, 5.8.3) Amax
A B
with Option Y
5 6
up to Version 2.0xx/3.0xx:
Blocking of protective device / remote acknowl-
edgement
starting with Version 2.1xx/3.1xx:
Blocking of protective device
2.5 mm²
31 Enable power circuit breaker 2.5 mm²
32 30 Generator power circuit breaker is open 2.5 mm²
74 Isolated operation 2.5 mm²
75 73 up to Version 2.0xx/3.0xx:
free
starting with Version 2.1xx/3.1xx:
Remote acknowledgement
2.5 mm²
with Option G
5 6 Blocking of protective device / remote acknowledgement 2.5 mm²
31 Enable controller 2.5 mm²
32 30 Reply power circuit breaker 2.5 mm²
74 Raise set point value 2.5 mm²
75 73 Lower set point value 2.5 mm²
Analog Inputs (Options X,B)
0 V
B
A
I
A
Analog input
20 mA
Terminal Description Amax
A B
IA0 V
58 59
Analog input 0 to 20 mA
for power set point value specification Option X 2.5 mm²
57 -
Input/output P-sum for power distribution
(reference point is terminal 4) Option B 2.5 mm²

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Auxiliary and Control Outputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Relay Outputs
AB
Relay output
Relay output
external device
external device
external device
CDE
max. 250 V AC
Figure 3-9: Relay outputs
Description
Form A contact Amax
main make
A B
9 10 Relay 1 (ready for operation) 2.5 mm²
Form C contact
make main break
C D E
11 12 13 Relay 2 2.5 mm²
14 15 16 Relay 3 2.5 mm²
27 28 29 Synchronization (pulse/holding relay) Option Y 2.5 mm²
Pulse Output (Option M)
B A
Pulse output
Open collector
+
-
24 V DC
R > 1 kOhm
V
Figure 3-10: Pulse output
Terminal Description Amax
A 60
B 61
Pulse output (Open Collector) 2.5 mm²

Manual 37143A MFR 15 - Protection Relay & Control
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Analog Outputs (Option A1 to A8)
Possible combination The analog outputs and the interface may be combined as follows:
Option ... S A1 to A4 A6 to A8
••-
simultaneous
use of ... - -•
NOTE
All 20 mA outputs are electrically isolated from each other; the 10 V-outputs 1 to 4 are electrically iso-
lated from outputs 5 to 8.
I
D
0 V
C
A
U
AB
0 V
A
Analog output
Analog output
Figure 3-11: Analog outputs
Description Amax
0 to 20 / 4 to 20
-20 to +20 mA
IA0 V
A B
51 50 Analog output 1 Option A2/3/6 1.5 mm²
53 52 Analog output 2 Option A3/6 1.5 mm²
55 54 Analog output 3 Option A3/6 1.5 mm²
82 81 Analog output 4 Option A6 1.5 mm²
84 83 Analog output 5 Option A6 1.5 mm²
87 86 Analog output 6 Option A6 1.5 mm²
0 to 10 / -10 to +10 V
VA0 V
C D
51 Analog output 1 Option A1/4/8 1.5 mm²
52 50 Analog output 2 Option A4/8 1.5 mm²
54 Analog output 3 Option A4/8 1.5 mm²
55 53 Analog output 4 Option A4/8 1.5 mm²
82 Analog output 5 Option A8 1.5 mm²
83 81 Analog output 6 Option A8 1.5 mm²
85 Analog output 7 Option A8 1.5 mm²
86 84 Analog output 8 Option A8 1.5 mm²

Manual 37143A MFR 15 - Protection Relay & Control
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Controller Outputs
The controllers are configured as three-position controllers in the standard version (made of a form C contact and
a form A contact). If the Options QU or QF are equipped, they are configured as a quasi-continuous controller
with analog outputs. Refer to the following descriptions of the different controller outputs. Additional parameter
screens will be included in the control at apply to the controller outputs.
Three-Position Controller
max. 250 V AC
Speed / power
controller
19202122
Lower
Raise
Common
Lower
Raise
Common
Voltage / power
factor controller
f / P controller
V / power factor contr.
V / power factor contr.
f / P controller
23242526
Terminal Assignment Description Amax
19 raise 2.5 mm²
20 common 2.5 mm²
21 common 2.5 mm²
22 lower
Speed/active-power controller
2.5 mm²
23 raise 2.5 mm²
24 common 2.5 mm²
25 common 2.5 mm²
26 lower
Voltage/power-factor ϕcontroller
reactive power 2.5 mm²
Analog Controller Output (Options QF, QU)
0 V
A
I
I
0 V
I
A
I
A
0 V
A
A
A
0 V
Excitation /
voltage /
reactive power
controller
26
A
0 V
I
21
I
0 V
232425
I
A
I
A
22
A
A
0 V
20
A
19
0 V
Speed /
active power
controller
V V
V V
Terminal Assignment Description Amax
I V
19 - 0 V 2.5 mm²
20 I- 2.5 mm²
21 I- 2.5 mm²
22 0 V VA
Speed/power controller
2.5 mm²
23 - 0 V 2.5 mm²
24 I- 2.5 mm²
25 I- 2.5 mm²
26 0 V VA
Voltage/power-factor ϕcontroller
2.5 mm²

Manual 37143A MFR 15 - Protection Relay & Control
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Interface (Options SU/SB/SF)
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
ACA B D E B DC E A B C D E CEA B C D A B D E
GND
Interface RS422 interface Interface RS232 interface
A (non-inverted)
B (inverted)
GND
RTS
RxD
CTS
TxD
Interface RS485 interface MOD bus RTU slave
Z (inverted)
Y (non-inverted)
B (inverted)
A (non-inverted)
GND
Interface CAN bus Interface TTY interface The transmitter drives the current.
RxD +
RxD -
TxD +
TxD -
Termination
NC
GND
CAN-H
CAN-L
DA B C
Interface Profi bus DP
Screen
A-Line
GND
+5 V
E F
B-Line
RTS
Figure 3-12: Interfaces
Terminal Description
A(X1) B(X2) C(X3) D(X4) E(X5)
RxD RTS GND CTS TxD RS-232
A B
GND Z RS-422
GND B A
RS-485, Modbus RTU Slave
RxD- RxD+ NC TxD- TxD+ TTY (transmitter drives current)
GND CAN-H CAN-L CAN bus
A(X1) B(X2) C(X3) D(X4) E(X5) F (X6)
Screen +5 V GND A-Line B-Line RTS Profibus DP (the file
LEON00D9.GSD has to be used)
NOTE
Please note that the CAN bus must be terminated with an impedance which corresponds to the wave
impedance of the cable (e.g. 120 Ohm, ¼ W resistor).
CAN Bus Shielding
Interface
CAN bus
CAN-L
CAN-H
GND
Shield
1 M Ohm
0.01 µ F
400 Vac
Figure 3-13: Interface - CAN bus shielding