GE Multilin 469 Instruction Manual

Digital Energy

Multilin

Software Revision: 5.0x

Manual P/N: 1601-0122-A8
Manual Order Code: GEK-106474G

Copyright © 2009 GE Multilin

469 Motor Management
Relay
Instruction Manual

GE Multilin

215 Anderson Avenue, Markham, Ontario

Canada L6E 1B3

Tel: [phone] Fax: [phone]

Internet: http://www.GEmultilin.com

*1601-0122-A8*

GE Multilin's Quality Management

System is registered to

ISO9001:2000

QMI # 005094

UL # A3775

© 2009 GE Multilin Incorporated. All rights reserved.

GE Multilin 469 Motor Management Relay instruction manual for revision 5.0x.

469 Motor Management Relay, is a registered trademark of GE Multilin Inc.

The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.

Part numbers contained in this manual are subject to change without notice, and should
therefore be verified by GE Multilin before ordering.

Part number: 1601-0122-A8 (September 2009)

TOC TABLE OF CONTENTS

Table of Contents

1: GETTING STARTED IMPORTANT PROCEDURES ............................................................................. 1-1

C

AUTIONS AND WARNINGS ............................................................................................... 1-1

I

NSPECTION CHECKLIST ...................................................................................................... 1-1

M

ANUAL ORGANIZATION ................................................................................................... 1-2

USING THE RELAY ............................................................................................ 1-3

M

ENU NAVIGATION ............................................................................................................. 1-3

P

ANEL KEYING EXAMPLE .................................................................................................... 1-8

CHANGING SETTINGS ...................................................................................... 1-9

I

NTRODUCTION .....................................................................................................................1-9

T

HE HELP KEY .................................................................................................................... 1-10

N

UMERICAL SETTINGS ........................................................................................................ 1-10

E

NUMERATION SETTINGS ................................................................................................... 1-11

O

UTPUT RELAY SETTINGS .................................................................................................. 1-15

T

EXT SETTINGS ..................................................................................................................... 1-15

APPLICATION EXAMPLE ................................................................................. 1-17

D

ESCRIPTION ........................................................................................................................ 1-17

I

NSTRUMENT TRANSFORMER DATA ................................................................................... 1-25

M

OTOR PROTECTION .......................................................................................................... 1-25

S2 S

YSTEM SETTINGS ......................................................................................................... 1-30

S3 D

IGITAL INPUTS SETTINGS ........................................................................................... 1-32

S5 T

HERMAL MODEL .......................................................................................................... 1-33

S6 C

URRENT ELEMENTS ..................................................................................................... 1-33

S7 M

OTOR STARTING ......................................................................................................... 1-35

S8 RTD T
O

INSTALLATION .................................................................................................. 1-38

T

ESTING ................................................................................................................................ 1-38

EMPERATURE ...................................................................................................... 1-35

THER SETTINGS ................................................................................................................. 1-36

2: INTRODUCTION OVERVIEW .......................................................................................................... 2-1

ESCRIPTION ........................................................................................................................ 2-1

D
O

RDERING INFORMATION ................................................................................................... 2-4

O

RDER CODES ..................................................................................................................... 2-5

E

XAMPLE ORDER CODES ....................................................................................................2-5

A

CCESSORIES ....................................................................................................................... 2-5

SPECIFICATIONS ............................................................................................... 2-6

I

NPUTS .................................................................................................................................. 2-6

O

UTPUTS ...............................................................................................................................2-7

P

ROTECTION ......................................................................................................................... 2-8

D

IGITAL INPUTS ................................................................................................................... 2-10

M

ONITORING ........................................................................................................................ 2-11

P

OWER SUPPLY ................................................................................................................... 2-13

CPU ...................................................................................................................................... 2-13

T

ESTING ................................................................................................................................ 2-13

C

ERTIFICATION ..................................................................................................................... 2-14

P

HYSICAL .............................................................................................................................. 2-15

E

NVIRONMENTAL ................................................................................................................. 2-15

L

ONG-TERM STORAGE ........................................................................................................ 2-15

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–I

TABLE OF CONTENTS

3: INSTALLATION MECHANICAL INSTALLATION ....................................................................... 3-1

D

ESCRIPTION ........................................................................................................................ 3-1

P

RODUCT IDENTIFICATION .................................................................................................. 3-2

I

NSTALLATION ....................................................................................................................... 3-3

U

NIT WITHDRAWAL AND INSERTION ................................................................................3-5

E

THERNET CONNECTION .................................................................................................... 3-7

D

EVICENET CONNECTION .................................................................................................. 3-8

T

ERMINAL LOCATIONS ........................................................................................................ 3-9

T

ERMINAL LIST ..................................................................................................................... 3-9

ELECTRICAL INSTALLATION ......................................................................... 3-11

T

YPICAL WIRING .................................................................................................................. 3-11

D

ESCRIPTION ........................................................................................................................ 3-12

C

ONTROL POWER ................................................................................................................ 3-12

C

URRENT INPUTS ................................................................................................................. 3-13

V

OLTAGE INPUTS ................................................................................................................. 3-17

D

IGITAL INPUTS ................................................................................................................... 3-18

A

NALOG INPUTS ..................................................................................................................3-19

A

NALOG OUTPUTS ..............................................................................................................3-19

RTD S

ENSOR CONNECTIONS ............................................................................................ 3-20

O

UTPUT RELAYS ..................................................................................................................3-22

D

RAWOUT INDICATOR ........................................................................................................3-24

RS485 C
D
2-S

OMMUNICATIONS PORTS ................................................................................... 3-24

IELECTRIC STRENGTH .......................................................................................................3-25

PEED MOTOR WIRING .................................................................................................. 3-27

4: INTERFACES FACEPLATE INTERFACE .................................................................................. 4-1

D

ESCRIPTION ........................................................................................................................ 4-1

D

ISPLAY ................................................................................................................................. 4-1

LED I

NDICATORS .................................................................................................................4-2

RS232 P
K
S
D
S
F

ORT ....................................................................................................................... 4-3

EYPAD ................................................................................................................................. 4-4

ETTINGS ENTRY .................................................................................................................. 4-6

IAGNOSTIC MESSAGES ..................................................................................................... 4-7

ELF-TEST WARNINGS ....................................................................................................... 4-8

LASH MESSAGES ................................................................................................................4-9

ENERVISTA 469 SETUP SOFTWARE INTERFACE ....................................... 4-10

O

VERVIEW ............................................................................................................................ 4-10

H

ARDWARE ........................................................................................................................... 4-11

I

NSTALLING THE ENERVISTA 469 SETUP SOFTWARE .................................................... 4-13

CONNECTING ENERVISTA 469 SETUP TO THE RELAY ............................. 4-16

C

ONFIGURING SERIAL COMMUNICATIONS .......................................................................4-16

U

SING THE QUICK CONNECT FEATURE ............................................................................ 4-17

C

ONFIGURING ETHERNET COMMUNICATIONS .................................................................4-18

C

ONNECTING TO THE RELAY .............................................................................................. 4-19

WORKING WITH SETTINGS AND SETTINGS FILES .................................... 4-22

E

NGAGING A DEVICE ........................................................................................................... 4-22

E

NTERING SETTINGS ............................................................................................................ 4-22

F

ILE SUPPORT ...................................................................................................................... 4-23

U

SING SETTINGS FILES ....................................................................................................... 4-23

UPGRADING RELAY FIRMWARE ................................................................... 4-35

D

ESCRIPTION ........................................................................................................................ 4-35

S

AVING SETTINGS TO A FILE .............................................................................................. 4-35

TOC–II 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

TOC TABLE OF CONTENTS

LOADING NEW FIRMWARE ................................................................................................. 4-35

ADVANCED ENERVISTA 469 SETUP FEATURES ........................................ 4-38

T

RIGGERED EVENTS ............................................................................................................. 4-38

W

AVEFORM CAPTURE (TRACE MEMORY) ......................................................................... 4-38

P

HASORS .............................................................................................................................. 4-40

T

RENDING (DATA LOGGER) ................................................................................................4-42

E

VENT RECORDER ............................................................................................................... 4-45

M

ODBUS USER MAP ........................................................................................................... 4-46

V

IEWING ACTUAL VALUES ................................................................................................. 4-46

USING ENERVISTA VIEWPOINT WITH THE 469 ......................................... 4-49

P

LUG AND PLAY EXAMPLE ................................................................................................. 4-49

5: SETTINGS OVERVIEW .......................................................................................................... 5-1

ETTINGS MESSAGE MAP ................................................................................................... 5-1

S
T

RIPS, ALARMS, AND BLOCKS ............................................................................................ 5-6

R

ELAY ASSIGNMENT PRACTICES ........................................................................................ 5-7

S1 469 SETUP ....................................................................................................... 5-8

P

ASSCODE ............................................................................................................................ 5-8

P

REFERENCES ....................................................................................................................... 5-9

C

OMMUNICATIONS .............................................................................................................. 5-10

R

EAL TIME CLOCK ............................................................................................................... 5-13

D

EFAULT MESSAGES ...........................................................................................................5-13

M

ESSAGE SCRATCHPAD ...................................................................................................... 5-14

C

LEAR DATA ......................................................................................................................... 5-15

I

NSTALLATION ....................................................................................................................... 5-16

S2 SYSTEM SETUP ............................................................................................. 5-17

C

URRENT SENSING .............................................................................................................. 5-17

V

OLTAGE SENSING .............................................................................................................. 5-19

P

OWER SYSTEM ................................................................................................................... 5-19

C

OMMUNICATIONS CONTROL ............................................................................................ 5-20

R

EDUCED VOLTAGE ............................................................................................................. 5-21

S3 DIGITAL INPUTS ........................................................................................... 5-24

D

ESCRIPTION ........................................................................................................................ 5-24

S

TARTER STATUS ................................................................................................................. 5-25

A

SSIGNABLE INPUTS 1(4) ................................................................................................... 5-25

S4 OUTPUT RELAYS .......................................................................................... 5-34

D

ESCRIPTION ........................................................................................................................ 5-34

R

ELAY RESET MODE ............................................................................................................ 5-34

F

ORCE OUTPUT RELAY .......................................................................................................5-35

S5 THERMAL MODEL ....................................................................................... 5-36

M

OTOR THERMAL LIMITS ................................................................................................... 5-36

T

HERMAL MODEL ................................................................................................................ 5-38

O

VERLOAD CURVE SETUP .................................................................................................. 5-39

S6 CURRENT ELEMENTS ................................................................................. 5-59

S

HORT CIRCUIT TRIP ........................................................................................................... 5-59

O

VERLOAD ALARM .............................................................................................................. 5-60

M

ECHANICAL JAM ............................................................................................................... 5-60

U

NDERCURRENT .................................................................................................................. 5-61

C

URRENT UNBALANCE ....................................................................................................... 5-62

G

ROUND FAULT ................................................................................................................... 5-63

P

HASE DIFFERENTIAL .......................................................................................................... 5-64

S7 MOTOR STARTING ....................................................................................... 5-66

A

CCELERATION TIMER .........................................................................................................5-66

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–III

TABLE OF CONTENTS

START INHIBIT ...................................................................................................................... 5-66

J

OGGING BLOCK .................................................................................................................. 5-67

R

ESTART BLOCK ................................................................................................................... 5-69

S8 RTD TEMPERATURE ....................................................................................5-70

RTD T

YPES ...........................................................................................................................5-70

RTD

S 1 TO 6 .......................................................................................................................5-71

RTD

S 7 TO 10 ..................................................................................................................... 5-72

RTD 11 ................................................................................................................................5-73

RTD 12 ................................................................................................................................5-74

O

PEN RTD SENSOR ............................................................................................................5-75

RTD S

HORT/LOW TEMP ....................................................................................................5-75

S9 VOLTAGE ELEMENTS ................................................................................. 5-76

U

NDERVOLTAGE ................................................................................................................... 5-76

O

VERVOLTAGE ...................................................................................................................... 5-78

P

HASE REVERSAL .................................................................................................................5-78

F

REQUENCY ..........................................................................................................................5-79

S10 POWER ELEMENTS .................................................................................... 5-80

P

OWER MEASUREMENT CONVENTIONS ...........................................................................5-80

P

OWER FACTOR ................................................................................................................... 5-81

R

EACTIVE POWER ................................................................................................................ 5-82

U

NDERPOWER ......................................................................................................................5-83

R

EVERSE POWER .................................................................................................................5-84

T

ORQUE SETUP .................................................................................................................... 5-84

O

VERTORQUE .......................................................................................................................5-85

S11 MONITORING .............................................................................................. 5-86

T

RIP COUNTER .....................................................................................................................5-86

S

TARTER FAILURE ................................................................................................................ 5-86

D

EMAND ...............................................................................................................................5-87

P

ULSE OUTPUT ....................................................................................................................5-89

S12 ANALOG INPUTS/OUTPUTS ..................................................................... 5-91

A

NALOG OUTPUTS 1 TO 4 ................................................................................................. 5-91

A

NALOG INPUTS 1 TO 4 ..................................................................................................... 5-93

A

NALOG INPUT DIFF 1-2 ................................................................................................... 5-95

A

NALOG INPUT DIFF 3-4 ................................................................................................... 5-96

S13 469 TESTING ................................................................................................. 5-98

S

IMULATION MODE ............................................................................................................. 5-98

P

RE-FAULT SETUP ............................................................................................................... 5-99

F

AULT SETUP ........................................................................................................................5-100

T

EST OUTPUT RELAYS .........................................................................................................5-101

T

EST ANALOG OUTPUTS .....................................................................................................5-101

C

OMM PORT MONITOR ....................................................................................................... 5-102

GE M

ULTILIN USE ONLY .................................................................................................... 5-102

S14 TWO-SPEED MOTOR .................................................................................. 5-103

D

ESCRIPTION ........................................................................................................................ 5-103

S

PEED2 UNDERCURRENT ................................................................................................... 5-107

S

PEED2 ACCELERATION ...................................................................................................... 5-107

6: ACTUAL VALUES OVERVIEW .......................................................................................................... 6-1

CTUAL VALUES MAP .........................................................................................................6-1

A
D

ESCRIPTION ........................................................................................................................ 6-3

A1 STATUS .......................................................................................................... 6-4

N

ETWORK STATUS ............................................................................................................... 6-4

M

OTOR STATUS ...................................................................................................................6-5

TOC–IV 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

TOC TABLE OF CONTENTS

LAST TRIP DATA ................................................................................................................... 6-5

A

LARM STATUS .................................................................................................................... 6-7

S

TART BLOCKS ..................................................................................................................... 6-9

D

IGITAL INPUTS ................................................................................................................... 6-9

R

EAL TIME CLOCK ............................................................................................................... 6-10

A2 METERING DATA ......................................................................................... 6-11

C

URRENT METERING ........................................................................................................... 6-11

T

EMPERATURE ...................................................................................................................... 6-12

V

OLTAGE METERING ........................................................................................................... 6-13

S

PEED .................................................................................................................................... 6-13

P

OWER METERING ..............................................................................................................6-14

D

EMAND METERING ............................................................................................................ 6-15

A

NALOG INPUTS ..................................................................................................................6-15

P

HASORS .............................................................................................................................. 6-16

A3 LEARNED DATA ........................................................................................... 6-27

M

OTOR STARTING ...............................................................................................................6-27

A

VERAGE MOTOR LOAD ..................................................................................................... 6-28

RTD M

AXIMUMS ................................................................................................................. 6-28

A

NALOG INPUT MIN/MAX .................................................................................................6-29

A4 MAINTENANCE ............................................................................................ 6-30

T

RIP COUNTERS ...................................................................................................................6-30

G

ENERAL COUNTERS .......................................................................................................... 6-31

T

IMERS .................................................................................................................................. 6-32

A5 EVENT RECORDER ...................................................................................... 6-33

E

VENT 01 TO EVENT 256 .................................................................................................. 6-33

A6 PRODUCT INFO ............................................................................................ 6-36

469 M

ODEL INFORMATION ...............................................................................................6-36

C

ALIBRATION INFORMATION .............................................................................................. 6-36

DIAGNOSTICS ..................................................................................................... 6-37

D

IAGNOSTIC MESSAGES ..................................................................................................... 6-37

F

LASH MESSAGES ................................................................................................................6-38

7: TESTING OVERVIEW .......................................................................................................... 7-1

EST SETUP .......................................................................................................................... 7-1

T

HARDWARE FUNCTIONAL TESTING ............................................................ 7-3

P

HASE CURRENT ACCURACY TEST .................................................................................... 7-3

V

OLTAGE INPUT ACCURACY TEST ..................................................................................... 7-3

G

ROUND AND DIFFERENTIAL ACCURACY TEST ............................................................... 7-4

GE M

ULTILIN 50:0.025 GROUND ACCURACY TEST ..................................................... 7-5

RTD A

CCURACY TEST ......................................................................................................... 7-5

D

IGITAL INPUTS AND TRIP COIL SUPERVISION ................................................................ 7-7

A

NALOG INPUTS AND OUTPUTS ........................................................................................ 7-8

O

UTPUT RELAYS .................................................................................................................. 7-10

ADDITIONAL FUNCTIONAL TESTING .......................................................... 7-11

O

VERLOAD CURVE TEST ..................................................................................................... 7-11

P

OWER MEASUREMENT TEST ............................................................................................7-11

U

NBALANCE TEST ................................................................................................................7-12

V

OLTAGE PHASE REVERSAL TEST ......................................................................................7-13

S

HORT CIRCUIT TEST .......................................................................................................... 7-14

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL TOC–V

TABLE OF CONTENTS

APPENDIX TWO-PHASE CT CONFIGURATION ................................................................ A-1

D

ESCRIPTION ........................................................................................................................ A-1

COOL TIME CONSTANTS ................................................................................. A-4

S

ELECTION OF COOL TIME CONSTANTS ........................................................................... A-4

CURRENT TRANSFORMERS ............................................................................ A-6

G

ROUND FAULT CTS FOR 50:0.025 A CT ....................................................................A-6

G

ROUND FAULT CTS FOR 5A SECONDARY CT ............................................................. A-8

P

HASE CTS ...........................................................................................................................A-8

EU DECLARATION OF CONFORMITY ...........................................................A-10

EU D

ECLARATION OF CONFORMITY .................................................................................A-10

CHANGE NOTES ................................................................................................. A-11

R

EVISION HISTORY .............................................................................................................. A-11

C

HANGES TO THE 469 MANUAL ...................................................................................... A-11

GE MULTILIN WARRANTY .............................................................................. A-13

W

ARRANTY STATEMENT ..................................................................................................... A-13

TOC–VI 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

Digital Energy

WARNING

Multilin

469 Motor Management Relay

Chapter 1: Getting Started

Getting Started

1.1 Important Procedures

1.1.1 Cautions and Warnings

Please read this chapter to guide you through the initial setup of your new relay.

Before attempting to install or use the relay, it is imperative that all
WARNINGS and CAUTIONS in this manual are reviewed to help
prevent personal injury, equipment damage, and/or downtime.

1.1.2 Inspection Checklist

• Open the relay packaging and inspect the unit for physical damage.

• View the rear nameplate and verify that the correct model has been ordered.

• Ensure that the following items are included:

– Instruction Manual

– GE EnerVista CD (includes software and relay documentation)

– mounting screws

• For product information, instruction manual updates, and the latest software updates,
please visit the GE Multilin website at http://www.GEmultilin.com.

Note

If there is any noticeable physical damage, or any of the contents listed are missing, please
contact GE Multilin immediately.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–1

1.1.3 Manual Organization

Reading a lengthy instruction manual on a new product is not a task most people enjoy. To
speed things up, this introductory chapter provides a step-by-step tutorial for a simple
motor application. Important wiring considerations and precautions discussed in Electrical
Installation on page 3–11 should be observed for reliable operation. Detailed information
regarding accuracy, output relay contact ratings, and so forth are detailed in Specifications
on page 2–6. The remainder of this manual should be read and kept for reference to
ensure maximum benefit from the 469 Motor Management Relay. For further information,
please consult your local sales representative or the factory. Comments about new
features or modifications for your specific requirements are welcome and encouraged.

settings and actual values are indicated as follows in the manual:

A3 LEARNED DATA ZV AVERAGE MOTOR LOAD Z AVERAGE MOTOR LOAD LEARNED

This ‘path representation’ illustrates the location of an specific actual value or settings with
regards to its previous menus and sub-menus. In the example above, the

LOAD LEARNED actual value is shown to be an item in the AVERAGE MOTOR LOAD sub-

menu, which itself is an item in the

VALUES.

CHAPTER 1: GETTING STARTED

AVERAGE MOTOR

A3 LEARNED DATA menu, which is an item of ACTUAL

Sub-menu levels are entered by pressing the
submenu, the W

MESSAGE T and MESSAGE S keys are used to scroll through the settings in a sub-menu.

MESSAGE or ESCAPE key returns to the previous sub-menu. The

MESSAGE X or ENTER key. When inside a

The display indicates which keys can be used at any given point.

1–2 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.2 Using the Relay

1.2.1 Menu Navigation

The relay has three types of display messages: actual value, settings, and target messages.
A summary of the menu structure for settings and actual values can be found at the
beginning of chapters 5 and 6, respectively.

Settings are programmable settings entered by the user. These types of messages are
located within a menu structure that groups the information into categories. Navigating
the menu structure is described below.

Actual values include the following information:

1. Motor and System Status:

a. Motor status either stopped, starting, or running. It includes values such as motor

load, thermal capacity used, motor speed, and instantaneous values of power
system quantities.

b. The status of digital inputs.

c. Last trip information, including values such as cause of last trip, time and date of

trip, motor speed and load at the time of trip, pre-trip temperature measure­ments, pre-trip analog inputs values, and pre-trip instantaneous values of power
system quantities.

d. Active alarms.

e. Relay date and time.

f. Present blocking conditions.

g. General system status indication including the status of output relays, active

pickup, alarm and trip conditions.

2. Metering Data:

a. Instantaneous current measurements including phase, differential, unbalance,

ground, average, and motor load.

b. RTD Temperatures including hottest RTDs.

c. Instantaneous phase to phase and phase to ground voltages (depending on the

VT connections), average voltage, and system frequency.

d. Motor Speed

e. Power Quantities including apparent, real and reactive power.

f. Current and power demand including peak values.

g. Analog inputs

h. Vector information.

3. Motor Learned Data:

a. Learned and last acceleration time.

b. Learned and last starting current.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–3

CHAPTER 1: GETTING STARTED

c. Learned and last starting capacity.

d. Average motor load.

4. Maintenance data. This is useful statistical information that may be used for
preventive maintenance. It includes:

a. Trip counters

b. General counter such as number of motor starts, number of emergency restarts,

number of starter operations, digital counter for other purposes not listed above.

c. Timers such as motor running hours, time between starts timer, and five start tim-

ers used to calculate the average start time of the motor.

5. RTD Learned Data, which includes the maximum temperature measured by each of
the 12 RTDs.

6. Event recorder downloading tool.

7. Product information including model number, firmware version, additional product
information, and calibration dates.

8. Oscillography downloading tool.

Alarm, trip conditions, diagnostics, and system flash messages are grouped under Target
Messages.

To access settings,

Z Press the

MENU key to access the header of each menu, which will be

displayed in the following sequence:



SETTINGS [
Z]

 ACTUAL

VALUES [Z]

 TARGET

MESSAGES [Z]

Z Press the

MENU key until the display shows the header of the Settings

menu.

Z Press the

MESSAGE X or ENTER key to display the header for the first

Settings page.
The Settings pages are numbered, have an ‘S’ prefix for easy
identification and have a name which provides a general idea of the
settings available in that page.
Pressing the

MESSAGE T and MESSAGE S keys will scroll through all

the available Settings page headers. Settings page headers look as
follows:

1–4 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED



SETTINGS [
Z]

S1 RELAY SETUP

To enter a given Settings page,

Z Press the

Z Press the

MESSAGE X or ENTER key.

MESSAGE T or MESSAGE S keys to scroll through sub-page

headers until the required message is reached.
The end of a page is indicated by the message
beginning of a page is indicated by the message

To access actual values,

Z Press the

MENU key until the display shows the header of the actual

values menu.

Z Press the

MESSAGE X or ENTER key to display the header for the first

actual values page.
The actual values pages are numbered, have an ‘A’ prefix for easy
identification and have a name, which gives a general idea of the
information available in that page.
Pressing the

MESSAGE T or MESSAGE S keys will scroll through all

the available actual values page headers. Actual values page headers
look as follows:

To enter a given actual values page,

END OF PAGE. The

TOP OF PAGE.

 ACTUAL

VALUES [Z]

A1 STATUS

Z Press the

Z Press the

MESSAGE X or ENTER key.

MESSAGE T or MESSAGE S keys to scroll through sub-page

headers until the required message is reached.
The end of a page is indicated by the message
beginning of a page is indicated by the message

END OF PAGE. The

TOP OF PAGE.

Similarly, to access additional sub-pages,

Z Press the

Z Press the

MESSAGE X or ENTER key to enter the first sub-page,

MESSAGE T or MESSAGE S keys to scroll through the

available sub-pages, until the desired message is reached.
The process is identical for both settings and actual values.

The following procedure illustrates the key sequence to access the Current Demand actual
values.

Z Press the

Z Press

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–5

MENU key until you reach the actual values main menu.

MESSAGE X or ENTER key to enter the first actual values page.

CHAPTER 1: GETTING STARTED

Z Press the MESSAGE T or MESSAGE S key to scroll through pages,

until the

A2 METERING DATA page appears.

 ACTUAL

VALUES [Z]

A2 METERING

DATA

Z Press the

MESSAGE X or ENTER key to display the first sub-page

heading for the Metering Data actual values page:



CURRENT [
Z]

METERING

Pressing the

MESSAGE T or MESSAGE S keys will scroll the display up and down

through the sub-page headers.

Pressing the W

MESSAGE or ESCAPE key at any sub-page heading will return the

display to the heading of the corresponding settings or actual value page.

Pressing it again, will return the display to the main menu header.

Z Press the

MESSAGE T key until the DEMAND METERING sub-page

heading appears.



DEMAND [
Z]

METERING

At this point, pressing
sub-page. If instead you press the

MESSAGE X or ENTER key will display the messages under this

MESSAGE S key, it will return to the previous sub-

page heading. In this case,



POWER [
Z]

METERING

When the symbols
pages are available and can be accessed by pressing the

 and [Z] appear on the top line, it indicates that additional sub-

MESSAGE X or ENTER key.

Z Press

MESSAGE X or ENTER while at the Demand Metering sub-page

heading to display the following:

CURRENT
DEMAND: 0
Amps

Z Press W

MESSAGE key to return to the Demand Metering sub-page

heading.

1–6 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

Z Press the MESSAGE T key to display the next actual value of this sub-

page.
Actual values and settings messages always have a colon separating the
name of the value and the actual value or settings. This particular
message displays the current demand as measured by the relay.

The menu path to this value is shown as

A2 METERING DATA ZV DEMAND METERING

Z CURRENT DEMAND. Settings and actual values messages are referred to in this

manner throughout the manual.

For example, the

path representation describes the following key-press sequence:

TIME

A3 LEARNED DATA Z MOTOR STARTING Z LEARNED ACCELERATION

Z Press the

MESSAGE X or ENTER key,

Z Press the

MENU key until the actual value header appears on the display,

MESSAGE T key until the A3 LEARNED DATA message is

displayed.

Z Press the

MESSAGE X or ENTER key to display MOTOR STARTING

message.

Z Press the

ACCELERATION TIME message and the corresponding actual value.

Z Press the

MESSAGE X or ENTER key to reach the LEARNED

MESSAGE T key to display the next actual value message as

shown below:

LEARNED STARTING
CURRENT: 0 A

Z Press the

MESSAGE T or MESSAGE S keys to scroll the display up and

down through all the actual value displays in this corresponding sub­page.

Z Press the W

MESSAGE key to reverse the process described above and

return the display to the previous level.



MOTOR [
Z]

STARTING

Z Press the W

MESSAGE key twice to return to the A3 LEARNED DATA

page header.

 ACTUAL

VALUES [Z]

A3 LEARNED DATA

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–7

1.2.2 Panel Keying Example

The following figure gives a specific example of how the keypad is used to navigate
through the menu structure. Specific locations are referred to throughout this manual by
using a ‘path representation’. The example shown in the figure gives the key presses
required to read the learned starting current denoted by the path

MOTOR STARTING ZV LEARNED STARTING CURRENT.

 ACTUAL

VALUES [Z]

Press the MESSAGE or ENTER key

ACTUAL



VALUES [Z]

Press the MESSAGE key



ACTUAL

VALUES [Z]

Press the MESSAGE key

CHAPTER 1: GETTING STARTED

A3 LEARNED DATA ZV

Z Press the menu key until the relay displays the actual values page.



ACTUAL

VALUES [Z]

MESSAGE

MOTOR



STARTING [Z]

MESSAGE

MESSAGE

LEARNED ACCELERA­TION

LEARNED STARTING
CURRENT: 0 A

1–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.3 Changing Settings

1.3.1 Introduction

There are several classes of settings, each distinguished by the way their values are
displayed and edited.

The relay's menu is arranged in a tree structure. Each setting in the menu is referred to as
a settings, and each settings in the menu may be accessed as described in the previous
section.

The settings are arranged in pages with each page containing related settings; for
example, all the Short Circuit Trip settings are contained within the same page. As
previously explained, the top menu page of each setting group describes the settings
contained within that page. Pressing the
these top menus.

All of the 469 settings fall into one of following categories: device settings, system settings,
digital input settings, output relay settings, thermal model settings, current element
settings, motor starting settings, RTD temperatures settings, voltage element settings,
power element settings, monitoring settings, analog input/output settings, two speed
motor settings, and testing settings.

MESSAGE keys allows the user to move between

Note

IMPORTANT: Settings are stored and used by the relay immediately after they are
entered. As such, caution must be exercised when entering settings while the relay is in
service. Modifying or storing protection settings is not recommended when the relay is
in service since any incompatibility or lack of coordination with other previously saved
settings may cause unwanted operations.

Now that we have become more familiar with maneuvering through messages, we can
learn how to edit the values used by all settings classes.

Hardware and passcode security features are designed to provide protection against
unauthorized settings changes. Since we will be programming new settings using the front
panel keys, a hardware jumper must be installed across the settings access terminals (C1
and C2) on the back of the relay case. Attempts to enter a new settings without this
electrical connection will result in an error message.

The jumper does not restrict settings access via serial communications. The relay has a
programmable passcode settings, which may be used to disallow settings changes from
both the front panel and the serial communications ports. This passcode consists of up to
eight (8) alphanumeric characters.

The factory default passcode is “0”. When this specific value is programmed into the relay
it has the effect of removing all settings modification restrictions. Therefore, only the
settings access jumper can be used to restrict settings access via the front panel and there
are no restrictions via the communications ports.

When the passcode is programmed to any other value, settings access is restricted for the
front panel and all communications ports. Access is not permitted until the passcode is
entered via the keypad or is programmed into a specific register (via communications).

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–9

Note that enabling settings access on one interface does not automatically enable access
for any of the other interfaces (i.e., the passcode must be explicitly set in the relay via the
interface from which access is desired).

A front panel command can disable settings access once all modifications are complete.
For the communications ports, writing an invalid passcode into the register previously
used to enable settings access disables access. In addition, settings access is
automatically disabled on an interface if no activity is detected for thirty minutes.

The EnerVista 469 Setup software incorporates a facility for programming the relay's
passcode as well as enabling and disabling settings access. For example, when an attempt
is made to modify a settings but access is restricted, the software will prompt the user to
enter the passcode and send it to the relay before the settings is actually written to the
relay. If a SCADA system is used for relay programming, it is the programmer's
responsibility to incorporate appropriate security for the application.

1.3.2 The HELP Key

Pressing the HELP key displays context-sensitive information about settings such as the
range of values and the method of changing the settings. Help messages will
automatically scroll through all messages currently appropriate.

CHAPTER 1: GETTING STARTED

1.3.3 Numerical Settings

Each numerical settings has its own minimum, maximum, and step value. These
parameters define the acceptable settings value range. Two methods of editing and
storing a numerical settings value are available.

The first method uses the 469 numeric keypad in the same way as any electronic
calculator. A number is entered one digit at a time with the 0 to 9 and decimal keys. The
left-most digit is entered first and the right-most digit is entered last. Pressing
before the

The second method uses the
value, up to a maximum allowed value. Likewise, the
displayed value by the step value, down to a minimum value. For example:

ENTER key returns the original value to the display.

VALUE S key to increment the displayed value by the step

VALUE T key decrements the

Z Select the

NAMEPLATE VOLTAGE

S2 SYSTEM SETUP ZV VOLTAGE SENSING Z MOTOR

settings message.

MOTOR NAMEPLATE
VOLTAGE: 4000 V

Z Press the 1, 3, 8, 0, and 0 keys. The display message will change as

shown.

MOTOR NAMEPLATE
VOLTAGE: 13800 V

ESCAPE

Until the

1–10 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

ENTER key is pressed, editing changes are not registered by the relay.

CHAPTER 1: GETTING STARTED

1.3.4 Enumeration Settings

Z Therefore, press the ENTER key to store the new value in memory.

This flash message will momentarily appear as confirmation of the
storing process.

NEW SETTINGS

HAS

BEEN STORED

The example shown in the following figures illustrates the keypress sequences required to
enter system parameters such as the phase CT primary rating, ground CT primary rating,
bus VT connection type, secondary voltage, and VT ratio.

The following values will be entered:

Phase CT primary rating: 600 A
Motor Full Load Current: 318 A
Ground CT ratings: 50/5 A
Phase Differential CT: None
Voltage Transformer Connection Type: Open Delta
Motor Nameplate Voltage: 13800 V
VT Ratio: 115:1

To set the phase CT primary rating, modify the

PHASE CT PRIMARY settings as shown below.



SETTINGS [

Press MESSAGE X or ENTER



SETTINGS [

Press MESSAGE T



SETTINGS [

To set the phase Motor Full Load Amps FLA, modify the

SENSING ZV MOTOR FULL LOAD AMPS FLA

Z Press the

Press

MESSAGE X

or

ENTER

Z Press the

S2 SYSTEM SETUP Z CURRENT SENSING Z

MENU key until the relay displays the Settings menu header.



CURRENT [

Press

MESSAGE X

or

ENTER

Press the VA L U E keys until 600 A is

displayed, or enter the value directly via

the numeric keypad.

Press the ENTER key to store the

settings.

S2 SYSTEM SETUP Z CURRENT

settings as shown below.

MENU key until the relay displays the Settings menu header.

PHASE CT PRIMARY:

OFF

PHASE CT PRIMARY:

600 A

NEW SETTINGS

HAS

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–11



SETTINGS [

Press MESSAGE X or ENTER



SETTINGS [

Press MESSAGE T

CHAPTER 1: GETTING STARTED



SETTINGS [

Press

MESSAGE X

or ENTER



CURRENT [

Press

MESSAGE X

or ENTER

Press

MESSAGE T

Press the VA L U E keys until 318 A is

displayed, or enter the value directly via

the numeric keypad.

Press the ENTER key to store the

settings.

PHASE CT PRIMARY:

600 A

MOTOR FULL LOAD
AMPS

MOTOR FULL LOAD
AMPS

NEW SETTINGS

HAS

1–12 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

To set the ground CT ratings, modify the S2 SYSTEM SETUP ZV CURRENT SENSING ZV

GROUND CT

and the S2 SYSTEM SETUP ZV CURRENT SENSING ZV GROUND CT PRIMARY

settings as shown below.



SETTINGS [

Press MESSAGE X or ENTER



SETTINGS [

Press MESSAGE T



SETTINGS [

Z Press the

Press

MESSAGE X

or ENTER

MENU key until the relay displays the Settings menu header.



CURRENT [

Press the VA L U E keys until

“5 A Secondary” is displayed.

Press the ENTER key to store the

Press

MESSAGE X

or ENTER

Press

MESSAGE T

Press

MESSAGE T

settings.

Press

MESSAGE T

PHASE CT PRIMARY:

600 A

MOTOR FULL LOAD
AMPS

GROUND CT:
Multilin CT 50/

GROUND CT:
5 A Secondary

NEW SETTINGS

HAS

GROUND CT PRI­MARY:

Press the VA L U E keys until 50 A is

displayed, or enter the value directly via

the numeric keypad.

Press the ENTER key to store the

settings.

GROUND CT PRI­MARY:

NEW SETTINGS

HAS

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–13

CHAPTER 1: GETTING STARTED

To set the VT connection type and ratings, modify the S2 SYSTEM SETUP ZV VOLTAGE

SENSING ZV VT CONNECTION TYPE

VOLTAGE TRANSFORMER RATIO
NAMEPLATE VOLTAGE settings as shown below.

and the S2 SYSTEM SETUP ZV VOLTAGE SENSING ZV

, and S2 SYSTEM SETUP ZV VOLTAGE SEN SING ZV MOTOR



SETTINGS [

Press MESSAGE X or ENTER



SETTINGS [

Press MESSAGE T



SETTINGS [

Z Press the

Press

MESSAGE X

or ENTER

Press

MESSAGE T

MENU key until the relay displays the Settings menu header.



CURRENT [



VOLTAGE [

Press the VA L U E keys until

“Open Delta” is displayed.

Press the ENTER key to store the

Press

MESSAGE X

or ENTER

settings.

Press

MESSAGE T

Press

MESSAGE T

VT CONNECTION
TYPE:

VT CONNECTION
TYPE:

NEW SETTINGS

HAS

ENABLE SINGLE VT:
OPERATION: OFF

VOLTAGE TRANS­FORMER

Press the VA L U E keys until 115.00 : 1 is

displayed, or enter the value directly via

the numeric keypad.

Press the ENTER key to store the

settings.

Press

MESSAGE T

Press the VA L U E keys until 13800 V is

displayed, or enter the value directly via

the numeric keypad.

Press the ENTER key to store the

settings.

VOLTAGE TRANS­FORMER

NEW SETTINGS

HAS

MOTOR NAMEPLATE
VOLTAGE: 4000 V

MOTOR NAMEPLATE
VOLTAGE: 13800 V

NEW SETTINGS

HAS

If an entered settings value is out of range, the relay displays the following message:

OUT-OF-RANGE!
ENTER:

“100-36000” indicates the range and “1” indicates the step
value

where 100 is the minimum settings value, 36000 is the maximum, and 1 is the step value.
To have access to information on maximum, minimum, and step value, press the

HELP key.

1–14 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.3.5 Output Relay Settings

Output relays (Trip or Alarm) can be associated to the Auxiliary Relays 2 and 3. Each can be
selected individually, or in combination, in response to customer specific requirements,
which can be initiated by any protection element or function, whose

ASSIGN RELAYS

settings has them selected.

Z Select the

RELAYS

S5 CURRENT ELEM. Z SHORT CIRCUIT TRIP ZV ASSIGN TRIP

settings message.

ASSIGN TRIP
RELAYS:
Trip

If an application requires the short circuit protection element to operate the Auxiliary
Output 3 relay,

Z Select this output relay by pressing the value key until the desired

combination appear in the display.

ASSIGN TRIP
RELAYS:
Trip & Auxiliary3

Z Press the

ENTER key to store this change into memory.

As before, confirmation of this action will momentarily flash on the
display.

NEW SETTINGS

HAS

BEEN STORED

1.3.6 Text Settings

Text settings have data values which are fixed in length but user-defined in character. They
may be composed of uppercase letters, lowercase letters, numerals, and a selection of
special characters. The editing and storing of a text value is accomplished using the
decimal [.],

For example:

VA L U E , and ENTER keys.

Z Move to message

1 FUNCTION

S3 DIGITAL INPUTS ZV ASSIGNABLE INPUT 1 Z INPUT

, and scrolling with the VA L U E keys, select “General Sw.
A”.
The relay will display the following message:

INPUT 1 FUNCTION:
General Sw. A

Z Press the

MESSAGE T key to view the next settings, SWITCH NAME.

The name of this user-defined input will be changed in this example
from the generic “General Sw. A” to something more descriptive.

If an application is to be using the relay as a station monitor, it is more informative to
rename this input “Station Monitor”.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–15

CHAPTER 1: GETTING STARTED

Z Press the decimal [.] key to enter the text editing mode.

The first character will appear underlined as follows:.

SWITCH NAME:
G

eneral Sw. A

Z Press the

VA L U E keys until the character “S” is displayed in the first

position.

Z Press the decimal [.] key to store the character and advance the cursor to

the next position.

Z Change the second character to a “t” in the same manner.

Z Continue entering characters in this way until all characters of the text

“Stn. Monitor” are entered.
Note that a space is selected like a character. If a character is entered
incorrectly, press the decimal [.] key repeatedly until the cursor returns
to the position of the error. Re-enter the character as required.

Z Once complete, press the

view the result. Once a character is entered, by pressing the

ENTER key to remove the solid cursor and

ENTER key,

it is automatically saved in flash memory, as a new settings.

SWITCH NAME:
Stn. Monitor

1–16 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

806553A1.CDR

1.000

10.000

100.000

1000.000

0 500 1,000 1,500 2,000 2,500

Current (Amps)

Time (sec.)

1.4 Application Example

1.4.1 Description

The 469 Motor Management Relay contains many features designed to accommodate a
wide range of motor management applications. This chapter is provided to guide you, the
first-time user, through a real-world application.

The following is typical example of how to determine the relay settings for a specific motor
that has been applied conservatively. This is only an example and may not address all
issues relating to your specific application. It is recommended that your local protection
engineer determine the settings for your motor protective relaying application. Refer to
following figures for schematic diagrams related to this example.

Important points to keep in mind before developing settings for any multifunction
numerical device like the 469 Motor Management Relay:

• Gather system data, including, but not limited to:

– CT primary and secondary ratings for all the CTs used to feed the relay

– motor name plate data

– motor operating curves (typical set shown below)

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–17

FIGURE 1–1: Typical Motor Curves

CHAPTER 1: GETTING STARTED

– VT primary and secondary ratings

– System frequency

– System phase sequence

• Define the protection elements that will be enabled. Prepare a list of protection
functions including the following information. By default, all the protection functions
must be assumed “Disabled”:

– Pickup parameter

– Operating curve, if applicable

– Time dial or multiplier

– Any additional intentional time delay

– Directionality, if applicable

• Define how many output contacts will be energized in response to a given protection
function. Note that the 469 relay can be programmed to Trip or Alarm and, at the
same time, to energize one, a combination, or all the 2 auxiliary relays during the
process.

• Define if the output relays will be set as failsafe type.

• Define if the 469 relay will be used to start the motor. If so, gather information on the
required conditions to execute the command.

• Define if the 469 will be involved in the motor starting process, particularly on reduced
voltage start applications.

• Define if the 469 will be applied a multi speed applications.

• Define if the relay will be used to monitor the status of the starter or breaker. It is
strongly recommended that the 469 be always programmed to monitor the status of
the disconnecting device, by means of a dry contact connected to one of the digital
inputs of the relay. Use an auxiliary contact from the breaker or starter either a
normally open contact, 52a, which is normally in open position when the
disconnecting device is open, or a normally closed contact, 52b, which is in close
position when the breaker or starter is open.

• If the 469 will be used to respond to digital inputs, record the following information:

– Digital Input name

– Condition by which the digital input would be considered asserted

– Function that the digital input will initiate within the 469

• If the 469 will be used to perform monitoring functions and act upon certain
conditions, record information such as:

– minimum and maximum values

– alarm and trip values

– time delays

• It is important to familiarize yourself with the relay protection and control functions
before setting up the relay.

1–18 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

To begin, simply power on the unit and follow the instructions in this tutorial. Assume the
following system characteristics and that the 469 settings are unaltered from their factory
default values.

Refer to the following figures for schematics related to this application example.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–19

CHAPTER 1: GETTING STARTED

28

MOTOR

BEARING 2

36

32

34

35

33

30

31

29

STATOR

STATOR

STATOR

MOTOR

BEARING 1

PHASE C - 2

PHASE C - 1

PHASE B - 2

20

24

26

27

25

22

23

21

16

18

19

17

15

14

13

STATOR

STATOR

STATOR

PHASE B - 1

PHASE A - 2

PHASE A - 1

5

9

11

12

10

7

8

6

1

3

4

2

+

Comp

­Shld

Comp

Shld

-

+

+

­Shld

Comp

-

+

Comp

Shld

Shld

Comp

+

­Comp

Shld

-

+

+

­Shld

Comp

Comp

Shld

-

+

+

­Shld

Comp

AMBIENT

MOTOR

806554A2.CDR

FIGURE 1–2: Typical Relay Connection Diagram

1–20 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

806552A2.CDR

COMMON

FIGURE 1–3: Typical Control Diagram

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–21

CHAPTER 1: GETTING STARTED

806551A1.CDR

FIGURE 1–4: Typical Breaker Control Diagram

1–22 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

806555A2.CDR

COMMON

FIGURE 1–5: Typical Relay Control Diagram

•Power System Data

a) System: 3

Φ, 4 wire

b) Frequency: 60 Hz

c) Line voltage: 600 V

•Motor Data

As per the following motor data sheet information:

FIGURE 1–6: Motor Data Sheet Information

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–23

• Motor Operating Curves

Motor operating curves as shown below:

CHAPTER 1: GETTING STARTED

FIGURE 1–7: Motor Operating Curves for Application Example

• Control System Requirements

– All protection elements trip the breaker

– Breaker position monitoring via 52b contact only

– Only current metering is required

– Serial communication remote start from RTU

– Alarm after 100 s delay from station monitor. This is normally used to signal the

remote center when someone has gained access to the substation.

• Contact Outputs

– Trip and close to breaker control circuit (Trip and Auxiliary2 relays)

– Relay failure alarm to RTU (self-test warning relay, no programming required)

– Alarm contact (setup in General Sw. A for “Station Monitor”)

– No data communications to other equipment.

1–24 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.4.2 Instrument Transformer Data

•RTDs

The motor is fitted with the following RTDs:

– RTD type: 100 Ω Platinum

– 6 Stator RTDs, 2 per phase

– 2 Bearing RTDs

– 1 Ambient RTD

Use the above data to set the output relays to achieve breaker control; to set digital inputs
for breaker status, remote operations, remote status, and alarm indication. Assume that
the communications between the station and the master control center will be done by the
RTU. Alarms, status indication, and breaker commands will be hard-wired from the relay to
the RTU. Similar information could be exchanged between the RTU and the relay via an
RS485 or RS422 Serial Link using the Modbus RTU protocol. Refer to GE Publication GEK­106491C: 469 Communications Guide for additional information.

• Voltage Transformers

– 2 × Open Delta connected, ratio = 600:120 V

– Motor System Voltage = 575 V

•Phase CTs

The phase CTs should be chosen such that the FLC is 50% to 100% of CT primary.
Since the FLC is 347.5A a 350:5, or 400:5 CT may be chosen; 400:5 is a standard
available size and so would probably be selected.

•Ground CT

For high resistive grounded systems, sensitive ground detection is possible with the
50:0.025 CT. Use a 1 A or 5 A secondary CT on solidly grounded or low resistive
grounded systems where the fault current is much higher. If a residual connection is
chosen, pickup levels and timers must be set with respect to the acceleration time.
The chosen zero-sequence CT must be able to handle all potential fault levels without
saturating. In this example, 50:5A CT is selected.

• Motor FLC

Set the motor full load current to 348 A, as specified by the data sheets.

Use the above data to set the relay system parameters, such as CT and VT
connections, VT secondary voltage, and CT and VT primary to secondary ratios.

1.4.3 Motor Protection

• Overload Pickup

The overload pickup is set to the maximum allowed by the service factor of the motor.
Since this motor has RTDs and the relay will be using the RTD bias feature for
enhanced protection, set the overload pickup to the highest setting of 1.25 x FLC for
the motor service factor of 1.15. If service factor is unknown, assume 1.0.

• Overload Curve

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–25

CHAPTER 1: GETTING STARTED

Select the standard overload curve to be just below the cold thermal limit to give
maximum process uptime, without compromising protection.

The best fitting curve is curve 7 (see figure below)

1–26 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

469 Motor Management Relay

STANDARD OVERLOAD CURVES

x1

x15

100000

10000

1000

100

10

1.00

0.10

1.00

MULTIPLE OF FULL LOAD AMPS

TIME IN SECONDS

10

100

1000

806804A5.CDR

NOTE:

LOGCHART SCALED AS PER:

KEUFFEL& ESSER TIME-CURRENT CHARACTERISTIC PAPER

GE ORDER #: GES10083

THISDRAWINGIS PROPRIETARYINFORMATION

DRAWNBY/DATE:

ENG.APP./DATE:

MFG.APP./DATE:

SCALE:

DWG.SIZE: B

DWG.No.:

PARTNo.:

REV.

REV

DATE

ECO#

DWN

APP

DESCRIPTION

A4

06/98

469-096

469-202

BA

JN

GEORDER NUMBERADDED

469Motor Management Relay

STANDARDOVERLOAD CURVES

N/A

A5

JA/09/20/96

X

X

1:1

806804A5.CDR

TEL:[phone] FAX:[phone]

INT:http://www.ge.com/edc/pm

215ANDERSONAVENUE,

MARKHAM,ONT.,CANADA, L6E 1B3

A5

12/99

WL

CD

Deleted“Multilin” fromlogo

Deleted“SR” fromHeading

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–27

FIGURE 1–8: Overload Curve Matching (Example)

CHAPTER 1: GETTING STARTED

•Short Circuit Trip

The short circuit trip should be set above the maximum locked rotor current but below
the short circuit current of the fuses. The data sheets indicate a maximum locked rotor
current of 630% FLC or 6.3 × FLC. A setting of 7 × FLC with a instantaneous time delay
will be ideal but nuisance tripping may result due to the asymmetrical starting
currents and DC offset. If asymmetrical starting currents limits the starting capability,
set the S/C level higher to a maximum of 11 × FLC to override this condition
(1.7 × 6.3 = 11.7 where 1.7 is the maximum DC offset for an asymmetrical current).

•Ground Fault

Unfortunately, there is not enough information to determine a ground fault setting.
These settings depend on the following information:

1. The ground fault current available.

2. System grounding; for example, high resistive grounding or solidly grounded

3. Ground fault CT used.

4. Ground fault connection; for example, zero-sequence or residual connection

For the purpose of this example, assume a fault current of 10 Amps or 10/50 = 0.2 x
CT, no intentional time delay.

• Unbalance Alarm and Trip

The unbalance settings are determined by examining the motor application and
motor design. The heating effect of unbalance will be protected by enabling
unbalance input to thermal memory; described in details in Chapter 5, Thermal Model.
A setting of 10% for the unbalance alarm with a delay of 10 seconds would be
appropriate and the trip can be set to 25% with a delay of 5 seconds.

• Stopped and Running Cool Times

The motor manufacturer usually supplies this information as either cooling times, or
cooling time constants not provided in the data sheet issued with this motor. Since
RTDs are present and wired to the relay, biasing of the thermal model will be used so it
is not critical to have these cooling times from the manufacturer. The default values of
motor cooling time constants are 15 and 30 minutes, and can be used for the running
and stopped cool times respectively. If the manufacturer provides cooling times
instead, the approximate values of the cooling time constants is 1/5th the cooling
times provided by the manufacturer.

• Acceleration Trip

This settings should be set higher than the maximum starting time to avoid nuisance
tripping when the voltage is lower or for varying loads during acceleration. If reduced
voltage starting is used, according to the acceleration curves, a setting of 18 seconds
would be appropriate, or if across the line starting is used, a setting of 13 seconds
would be appropriate.

• Enable Start Inhibit

This function will limit starts when the motor is already hot. The relay learns the
amount of thermal capacity used at start. If the motor is hot, thus having some
thermal capacity used, the relay will not allow a start if the available thermal capacity
is less than the required thermal capacity for a start.

1–28 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

K

R

r2

R

r1

--------=

K

230

(per-unit locked rotor amps)

2

------------------------------------ ------------------------------------

230

6.31

2

-------------

6≈==

•Starts/Hour

When available, set starts/Hour to the number of cold starts as per the data sheet.

• Time Between Starts

In some cases, the motor manufacturer will specify the time between motor starts.
This information is not given so this feature can be left disabled. If the information is
available, the time provided on the motor data sheets should be programmed.

•Stator RTDs

Set the RTD trip level at or below the maximum temperature rating of the insulation.
The data available shows class F insulation (temperature rating of 155°C), therefore
the Stator RTD Trip level should be set to between 140°C to 155°C, with 155°C being
maximum. The RTD alarm level should be set to provide a warning that the motor
temperature is rising. For this example, 135°C would be appropriate since this motor is
designed for class B rise, 130°C is it's normal hot operating temperature.

•Bearing RTDs

The Bearing RTD alarm and trip settings will be determined by evaluating the
temperature specification from the bearing manufacturer.

• Unbalance bias of thermal capacity

Enable the Unbalance Bias of Thermal Capacity so that the heating effect of
unbalance currents is added to the Thermal Capacity Used.

• Unbalance bias K factor

The K value is used to calculate the contribution of the negative-sequence current
flowing in the rotor due to unbalance. It is defined as:

where: Rr2 = rotor negative-sequence resistance

R

= rotor positive-sequence resistance.

r1

A formula based on empirical data states that K is equal to 230 divided by the per-unit
locked rotor current squared.

From the data sheet, the locked rotor amps = 631% FLA or 6.31 × FLA. Therefore,

• Hot/cold curve ratio

The hot/cold curve ratio is calculated by simply dividing the hot safe stall time by the
cold safe stall time or use the motor thermal limits curve. For this example, both are
available. Using the data sheets the, safe stall time H/C or hot/cold curve ratio is given
as 16/18 = 0.89

(EQ 1.1)

(EQ 1.2)

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–29

• Enable RTD Biasing

This will enable the temperature from the Stator RTD sensors, to be included in the
calculations of thermal capacity. This model determines the thermal capacity used
based on the temperature of the Stator and is separate from the overload model for
calculating thermal capacity used.

CHAPTER 1: GETTING STARTED

806550A1.CDR

RTD biasing is a back up protection element, which accounts for such things as loss of
cooling or unusually high ambient temperature. This measured temperature is used to
bias or modify the thermal capacity value stored in the relay.

RTD BIAS MINIMUM: Set to 40°C, which is the ambient temperature, obtained from the

data sheets.

RTD BIAS MID POINT: The center point temperature is set to the motor's hot running

temperature and is calculated as follows:

Temperature Rise of Stator + Ambient Temperature

The temperature rise of the stator is 80°C (class F rise by resistance) + 10% hot spot
allowance, obtained from the data sheets. Therefore, the RTD Center point
temperature is set to 90°C + 40°C or 130°C.

RTD BIAS MAXIMUM: This settings is set to the rating of the insulation or slightly less. A

class F insulation is used in this motor which is rated at 155°C, so the setting should be
“155”.

FIGURE 1–9: RTD Bias Example 1

You should now be familiar with maneuvering through and editing settings messages. As
such, we will now limit our discussion to just the values that must be programmed to meet
the requirements of the example application. Any settings not explicitly mentioned should
be left at the factory default value.

1.4.4 S2 System Settings

The S2 settings page contains settings for entering the characteristics of the equipment on
the motor electrical system. In our example, these characteristics are specified under the
Power System Data and Instrument Transformer Data headings in the previous sub­section. From this information and the resulting calculations, program the page S2 settings
as indicated.

1–30 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

For current transformers, make the following change in the S2 SYSTEM SETUP Z CURRENT

SENSING

settings page:

PHASE CT PRIMARY: “400 A”
MOTOR FULL LOAD AMPS FLA: “348 A”
GROUND CT: “5 A Secondary”
GROUND CT PRIMARY: “50 A”
PHASE DIFFERENTIAL CT: “None”
ENABLE 2-SPEED MOTOR PROTECTION: “No”

For current transformers, make the following change in the

SENSING

settings page:

VT CONNECTION TYPE: “Open Delta”
ENABLE SINGLE VT OPERATION: “Off”
VOLTAGE TRANSFORMER RATIO: “5 : 1”

S2 SYSTEM SETUP ZV VOLTAGE

(for a 600 V system, 600/120 V = 5, where 5 is the VT ratio)

MOTOR NAMEPLATE VOLTAGE: “575 V”

The 469 Motor Management Relay was designed with the ability to display primary system
values. Current and voltage measurements are performed at secondary levels, which the
relay transforms to primary values using CT and VT ratios, system voltage, as well as the
nominal secondary values.

In the case of the phase CTs, configuring the relay for current measurements is simple and
it only requires inputting the CT primary current. Phase CT inputs can be 1 A or 5 A, and
they must be specified when the relay is purchased.

There is more flexibility with regards to Ground CT inputs, as well as VT inputs, where
nominal values are not required ahead of time, before the relay is ordered; therefore more
settings are needed to set the relay for measurements.

Make the following change in the

S2 SYSTEM SETUP ZV POWER SYSTEM settings page to

reflect the power system:

NOMINAL SYSTEM FREQUENCY: “60 Hz”
SYSTEM PHASE SEQUENCE: “ABC”

The example calls for remote control via serial communications, received from the master
station, through the RTU. Motor starting and stopping is possible via any of the three 469
communication ports.

When a start command is issued, the auxiliary relay assigned for starting control is
activated for 1 second to complete the close coil circuit for a breaker application, or
complete the start control circuit for a contactor application. A contactor sealing contact
would be used to maintain the circuit. For details on issuing a start or stop command via
communications, refer to the GE Publication GEK-106491: 469 Communications Guide.

Make the following changes to the communications settings in the

SERIAL COMM. CONTROL page.

SERIAL COMMUNICATION CONTROL: “On”
ASSIGN START CONTROL RELAYS: “Auxiliary2”

S2 SYSTEM SETUP ZV

The Auxiliary 2 relay will be used to start the motor. Note that this auxiliary relay can not be
used for any other application.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–31

Once the signal is received the motor will be started across the line. Therefore, the
following settings are left with their default values. In the

VOLTAGE STARTING

REDUCE VOLTAGE STARTING: “Off”
ASSIGN CONTROL RELAYS: “Auxiliary3” (available for other use)
TRANSITION ON: “Current Only”
ASSIGN TRIP RELAYS: “Trip”
REDUCE VOLTAGE START LEVEL: “100% FLA”
REDUCE VOLTAGE START TIMER: “200 s”

1.4.5 S3 Digital Inputs Settings

The S3 settings page is for entering the characteristics of the digital inputs. In our example,
these characteristics are specified under the Control System Requirements heading.
Program the S3 settings as indicated.

Some of the functions assigned to the digital inputs of the 469 Motor Management Relay
are pre-defined functions, which can be selected from a list. There are four user-defined
functions, called General Switch A to D, associated to the assignable inputs. Set these
inputs to operate output relays, with or without delay, responding to the status change of
dry contacts connected to the digital input terminals. Use the following procedure to set
these functions:

CHAPTER 1: GETTING STARTED

S2 SYSTEM SETUP ZV REDUCE

settings page:

Z Change the default names to meaningful values so they can be easily

identified, either via the LCD or when reviewing event reports.

Z Identify their asserted logic.

Z Define the functionality of the digital inputs.

All the other assignable input functions are pre-defined, and when selected, they can be
set to generate Trip or Alarms, as well as energize auxiliary outputs as needed.

For breaker position monitoring, set the following pre-defined Digital Input called “Starter
Status”. As per the information provided above, a 52b contact will be used, and must be
connected between terminals D16 to D23:

S3 DIGITAL INPUTS ZV STARTER STATUS Z STARTER STATUS SW: “Starter Auxiliary b”

To set the relay to monitor access to the station, use Assignable Input 1 as “General Switch
A”, as follows. To define the digital input, enter the following data in the

ZV ASSIGNABLE INPUT 1

settings page.

S3 DIGITAL INPUTS

To identify the digital input:

INPUT 1 FUNCTION: “General Sw. A”
SWITCH NAME: “Stn. Monitor”

To define the asserted logic:

GENERAL SWITCH A: “Normally Open”

To define the functionality:

BLOCK INPUT FROM START: “0 s”
GENERAL SWITCH A ALARM: “Latched”
ASSIGN ALARM RELAYS: “Alarm”

1–32 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.4.6 S5 Thermal Model

GENERAL SWITCH A ALARM DELAY: “5.0 s”
GENERAL SWITCH A EVENTS: “On” so this event is registered.
GENERAL SWITCH A TRIP: “Off”

If the relay will not be used to trip the motor when someone gains unauthorized access to
the station, the next settings should be left at their default values:

GENERAL SWITCH A TRIP: “Off”
ASSIGN TRIP RELAYS: “Trip”
GENERAL SWITCH A TRIM DELAY: “5.0 s”

The S5 Thermal Model settings page contains settings for entering settings related to
protection of the motor during the starting process as well as during normal operation.

As per the information provided above, the settings for the Thermal Model are entered as
follows in the

SELECT CURVE STYLE: “Standard”
OVERLOAD PICKUP: “1.25 x FLA”
ASSIGN TRIP RELAYS: “Trip”
UNBALANCE BIAS K FACTOR: “6”
COOL TIME CONSTANT RUNNING: “15 min.”
COOL TIME CONSTANT STOPPED: “30 min.”
HOT/COLD SAFE STALL RATIO: “0.89”
ENABLE RTD BIASING: “Yes”
RTD BIAS MINIMUM: “40°C” – ambient temperature
RTD BIAS CENTER POINT: “130°C” – center value
RTD BIAS MAXIMUM: “155°C” – maximum value
THERMAL CAPACITY ALARM: “Unlatched” – recommended for early warning to take

corrective actions and prevent the interruption of the process.

ASSIGN ALARM RELAYS: “Alarm” – the Alarm contact could be use for local indication,

or to send a local signal to reduce load, before a trip is issued.

THERMAL CAP. ALARM LEVEL: “80%”
THERMAL CAPACITY ALARM EVENT: “Yes” – captures event in the event report.

As well, select the overload curve for the Thermal model with the following settings in the

S5 THERMAL MODEL ZV OVERLOAD CURVE SETUP menu:

STANDARD OVERLOAD CURVE NUMBER: “7”

1.4.7 S6 Current Elements

The S6 Current Elements settings page contains settings for entering protection element
characteristics. In our example, these characteristics are specified under Motor Protection
heading.

From this data and the resulting calculations, program the S6 settings page as indicated.
When setting the relay for the first time, other settings not listed in this example should be
left disabled.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–33

CHAPTER 1: GETTING STARTED

For the Short Circuit element, enter the following values in the S6 CURRENT ELEMENTS Z

SHORT CIRCUIT TRIP

page. Press the MESSAGE T key after each settings is entered to

move to the next message.

SHORT CIRCUIT TRIP: “Latched”
SHORT CIRCUIT TRIP OVEREACH FILETER: “Off” - no filtering of DC component is

required (refer to Short Circuit Trip on page 5–59 for additional information)

ASSIGN TRIP RELAYS: “Trip”
SHORT CIRCUIT TRIP PICKUP: “11.7”
INTENTIONAL S/C TRIP DELAY: “0 ms” - Instantaneous trip is required.
SHORT CIRCUIT TRIP BACKUP: “On” - if the main disconnect device does not respond to

the trip command, a second signal will be initiated via an auxiliary relay to generate a
bus shot down; in most cases, the second trip command energizes a lock out relay (86)
which is used to trip the upstream breakers

ASSIGN BACKUP RELAYS: “Auxiliary3”
SHORT CIRCUIT TRIP BACKUP DELAY: “200 ms” - this time must be greater than the

total time required to trip the main breaker plus a margin

Since the specifications do not indicate values for the following features, they must be left
“Off”:

OVERLOAD ALARM: “Off”
MECHANICAL JAM: “Off”
UNDERCURRENT: “Off”
PHASE DIFFERENTIAL: “Off”

For the Ground Fault element, enter the following values in the

GROUND FAULT page. Press the MESSAGE T key after each settings is entered to move to

S6 CURRENT ELEMENTS ZV

the next message.

GROUND FAULT OVERREACH FILETER: “Off” – no filtering of DC component is required

(refer to Ground Fault on page 5–63 for additional information)

GROUND FAULT ALARM: “Off” – default setting, no Alarm is required
ASSIGN ALARM RELAYS: “Alarm” – default setting
GROUND FAULT ALARM PICKUP: “0.10 x CT” – default setting
INTENTIONAL GF ALARM DELAY: “0 ms” – default setting
GROUND FAULT ALARM EVENTS: “Off” – default setting
GROUND FAULT TRIP: “Latched” – the output relay will remind energized until the Reset

command executed

ASSIGN TRIP RELAYS: “Trip”
GROUND FAULT TRIP PICKUP: “0.20 x CT”
INTENTIONAL GF TRIP DELAY: “0 ms”
GROUND FAULT TRIP BACKUP: “On”
ASSIGN BACKUP RELAYS: “Auxiliary3” - same relay assigned for the Short Circuit Trip

Backup

GROUND FAULT TRIP BACKUP DELAY: “200 ms” - same time delay assigned to the Short

Circuit Trip Backup

For the Current Unbalance element, enter the following values in the

ELEMENTS

ZV CURRENT UNBALANCE page. Press the MESSAGE T key after each settings

S6 CURRENT

is entered to move to the next message.

1–34 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

1.4.8 S7 Motor Starting

CURRENT UNBALANCE ALARM: “Unlatched”
ASSIGN ALARM RELAYS: “Alarm”
CURRENT UNBALANCE ALARM PICKUP: “10%”
CURRENT UNBALANCE ALARM DELAY: “10 s”
CURRENT UNBALANCE ALARM EVENTS: “On”
CURRENT UNBALANCE TRIP: “Latched” – the output relay will remind energized until the

Reset command executed

ASSIGN TRIP RELAYS: “Trip”
CURRENT UNBALANCE TRIP PICKUP: “20%”
CURRENT UNBALANCE TRIP DELAY: “5 s”

The S7 Motor Starting settings page contains additional settings used to complement the
Thermal Model. In our example, these characteristics are specified under Motor Protection
heading.

For the Acceleration Timer element, enter the following values in the

ACCELERATION TIMER page. Press the MESSAGE T key after each settings is completed to

S7 MOTOR STARTING Z

move to the next message.

ACCELERATION TIMER TRIP: “Latched”
ASSIGN TRIP RELAYS: “Trip”
ACCELERATION TIMER FROM START: “13 s” – as shown in the acceleration curves at

100% voltage

For the Start Inhibit element, enter the following values in the

START INHIBIT page. Press the MESSAGE T key after each settings is completed to move

S7 MOTOR STARTING ZV

to the next message.

START INHIBIT BLOCK: “On”
TC USED MARGIN: “25%”

With these settings, the 469 relay prevents motor starting if there is insufficient thermal
capacity for a successful motor start. Refer to Start Inhibit on page 5–66 for additional
information.

There is not information available to set Starts/Hour, Time Between Starts, or the Restart
Block features. Therefore, the following settings must be disabled:

JOGGING BLOCK: “Off”
RESTART BLOCK: “Off”

1.4.9 S8 RTD Temperature

The S8 RTD Temperature page contains the settings for the twelve (12) field programmable
RTDs that are normally used for temperature monitoring. The temperature measured by
each RTD can be compared to pickup values, and set to energize Trip or Alarm outputs.

For proper temperature monitoring, enter the RTD types in the

TYPES

page. Press the MESSAGE T key after each settings is completed to move to the

next message.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–35

S8 RTD TEMPERTURE Z RTD

CHAPTER 1: GETTING STARTED

STATOR RTD TYPE: “100 Ohm Platinum”
BEARING RTD TYPE: “100 Ohm Platinum”
AMBIENT RTD TYPE: “100 Ohm Platinum”
OTHER RTD TYPE: “100 Ohm Platinum” – default value

As per the information provided above, there will be six RTDs, two per phase located in the
Stator, and two Bearing RTDs, one to monitor the ambient temperature.

For Stator Overtemperature protection, enter the following settings in the

TEMPERTURE

The settings for the other RTDs are entered in similar fashion. Refer to S8 RTD Temperature
on page 5–70 for additional settings and additional information on RTD monitoring.

1.4.10 Other Settings

Undervoltage Protection

S8 RTD

ZV RTD 1 to RTD 6 menus:

RTD #1 APPLICATION: “Stator”
RTD #1 NA ME: “ST Ph A1”
RTD #1 ALARM: “Unlatched”
ASSIGN ALARM RELAYS: “Alarm”
RTD #1 ALARM TEMPERATURE: “135°C”
RTD #1 HIGH ALARM: “Off”
HIGH ALARM RELAYS: “Alarm” - default value
RTD #1 HIGH ALARM TEMPERATURE: “135°C” - default value
RTD #1 ALARM EVENTS: “On”
RTD #1 TR IP: “Latched”
RTD #1 TRIP VOTING: “RTD #5”
ASSIGN TRIP RELAYS: “Trip”
RTD #1 TRIP TEMPERATURE: “155°C”

In addition to the settings illustrated above, there will be cases in motor applications where
additional settings will be required, to monitor other system parameters such as voltage
levels.

The following sub-section will illustrate the procedures to set the 469 Motor Management
Relay to meet those requirements.

Description

Using the same system information, the following example illustrates the steps to set the
469 for Undervoltage protection.

The following settings are provided:

Pickup: 70% of nominal voltage – starting

80% of nominal voltage – running

Time Delay: 13.0 s

Other Considerations

• The function will be active only if there is voltage in the line feeding the motor, to avoid
nuisance trips due to the lack of voltage. The 469 will consider the bus energized only

1–36 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 1: GETTING STARTED

if the measured voltage is greater than 20% of nominal voltage. A trip condition will be
initiated only if undervoltage is detected in all the phases.

• In order to monitor for VT Fuse Failure or to monitor for undervoltage in one phase

only, set an Alarm when the voltage is 90% of nominal voltage both during start and
running.

For the Undervoltage element, enter the following values in the

UNDERVOLTAGE

settings page. Press the ENTER key to save, and then the MESSAGE T

S9 VOLTAGE ELEMENTS ZV

key, after each settings is completed, to move to the next message:

U/V ACTIVE ONLY IF BUS ENERGIZED: “Yes”
UNDERVOLTAGE ALARM: “Unlatched”
ASSIGN ALARM RELAYS: “Alarm”
UNDERVOLTAGE ALARM PICKUP: “0.9 x RATED”
STARTING U/V ALARM PICKUP: “0.9 x RATED”
UNDERVOLTAGE ALARM DELAY: “0.0 s”
UNDERVOLTAGE ALARM EVENTS: “Yes”
UNDERVOLTAGE TRIP: “Latched”
UNDRVOLTAGE TRIP MODE: “3-Phase”
ASSIGN TRIP RELAYS: “Trip”
UNDERVOLTAGE TRIP PICKUP: “0.8 x RATED”
STARTING U/V TRIP PICKUP: “0.7 x RATED”
UNDERVOLTAGE TRIP DELAY: “13.0 s”

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 1–37

1.5 Installation

1.5.1 Testing

CHAPTER 1: GETTING STARTED

Extensive commissioning tests are available in Chapter 7. Tables for recording required
settings are available in Microsoft Excel format from the GE Multilin website at http://

www.GEmultilin.com/. The website also contains additional technical papers and FAQs

relevant to the 469 Motor Management Relay.

1–38 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

Digital Energy

Multilin

2.1 Overview

469 Motor Management Relay

Chapter 2: Introduction

Introduction

2.1.1 Description

The 469 Motor Management Relay is a microprocessor based relay designed for the
protection and management of medium and large horsepower motors and driven
equipment. The 469 is equipped with six (6) output relays for trips, alarms, and start blocks.
Motor protection, fault diagnostics, power metering, and RTU functions are integrated into
one economical drawout package. The single-line diagram below illustrates the 469
functionality using ANSI (American National Standards Institute) device numbers

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–1

CHAPTER 2: INTRODUCTION

.

FIGURE 2–1: Single Line Diagram

Typical applications include: pumps, fans, compressors, mills, shredders, extruders,
debarkers, refiners, cranes, conveyors, chillers, crushers, and blowers.

Some of the protection highlights are detailed here; a complete list is shown below. Four
assignable digital inputs may be configured for a number of different features including
tachometer or generic trip and alarm with a programmable name. The thermal model
incorporates unbalance biasing, RTD feedback, and exponential cooling. In addition to the
15 standard overload curves, there is a custom curve feature and a curve specifically
designed for the starting of high inertia loads, when the acceleration time exceeds the safe
stall time. A second overload curve is provided for two-speed motors. Ground faults or
earth leakage as low as 0.25 A may be detected using the GE Multilin 50:0.025 Ground CT.
CT inputs for phase differential protection are also provided. The 12 RTD inputs provided
may be individually field programmed for different RTD types. Voltage transformer inputs
allow for numerous protection features based on voltage and power quantities. Four
4 to 20 mA analog inputs may be used for tripping and alarming on any transducer input
such as vibration, pressure, flow, etc.

2–2 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

51 Overload
86 Overload Lockout
66 Starts/Hour & Time Between Starts

Restart Block (Anti-Backspin Timer)

50 Short Circuit & Short Circuit Backup

Mechanical Jam

37

32

Undercurrent/Underpower

Reverse Power

46Current Unbalance

50G/51G Ground Fault & Ground Fault Backup
87 Differential

Acceleration
49 Stator RTD
38 Bearing RTD

Other RTD & Ambient RTD

Open RTDAlarm

Short/Low RTD
27/59 Undervoltage/Overvoltage
47 Phase Reversal

81 Frequency

Reactive Power

55/78 Power Factor

Analog Input

Demand Alarm: A kW kvar kVA

SR469 Self-Test, Service

Trip Coil Supervision

Welded Contactor

Breaker Failure

Remote Switch

14 Speed Switch & Tachometer Trip

Load Shed Switch
Pressure Switch

Vibration Switch
19 Reduced Voltage Start
48

Over Torque

Remote Start/Stop

PROCTLA5.CDR

Incomplete Sequence (Reduced Voltage Start)

Forced Relay Operation

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–3

FIGURE 2–2: Protection Features

Fault diagnostics are provided through pretrip data, event record, trace memory, and
statistics. Prior to issuing a trip, the 469 takes a snapshot of the measured parameters and
stores them with the cause of the trip. This pre-trip data may be viewed using the
key, viewing the

ZV LAST TRIP DATA actual values. The 469 event recorder stores up to 256 time and date

TARGET MESSAGES before the trip is reset, or by accessing the A1 STATUS

MENU

stamped events including the pre-trip data. Each time a trip occurs, the 469 stores a trace
of 8 cycles pre-trip and 8 cycles post-trip for all measured AC quantities. Trip counters
record the number of occurrences of each type of trip. Minimum and maximum values for
analog inputs, along with maximum values for RTDs, are also recorded. These features
enable the operator to pinpoint a problem quickly and with certainty.

Power metering included with the 469 as a standard feature. The table below outlines the
metered parameters available either through the front panel or communications ports.

CHAPTER 2: INTRODUCTION

The 469 is equipped with 3 fully functional and independent communications ports. The
front panel RS232 port may be used for 469 settings programming, local interrogation or
control, and upgrading of 469 firmware. The Computer RS485 port may be connected to a
PLC, DCS, or PC based user interface program. The Auxiliary RS485 port may be used for
redundancy or simultaneous interrogation and/or control from a second PLC, DCS, or PC
software.

There are also four 4 to 20 mA or 0 to 1 mA (as specified with order) transducer outputs
that may be assigned to any measured parameter. The range of these outputs is scalable.
Additional features are outlined below.

METERING:

• Voltage

• Current and amps demand

• Real power, kW demand, kW power consumption

• Apparent power and kVA demand

• Reactive power, kvar demand, kvar consumption/generation

•Frequency

• Power factor

•RTD

• Speed in RPM with a key phasor input

• User-programmable analog inputs.

ADDITIONAL FEATURES:

• Drawout case (for ease of maintenance/testing)

• Reduced voltage starting control for single transition

• Trip coil supervision

• Flash memory for easy firmware updates

2.1.2 Ordering Information

All 469 features are standard; there are no options. The phase CT secondaries, control
power, and analog output range must be specified at the time of order. The 469 differential
CT inputs are field programmable for CTs with 1 A or 5 A secondaries. There are two
ground CT inputs, one for the GE Multilin 50:0.025 core balance CT and one for a ground CT
with a 1 A or 5 A secondary, also field programmable. The VT inputs will accommodate VTs
in either a delta or wye configuration. The output relays are always non-failsafe with the
exception of the service relay. The EnerVista 469 Setup software is provided with each unit.
A metal demo case may be ordered for demonstration or testing purposes.

2–4 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

2.1.3 Order Codes

469 – * – * – * – * – *

Base Unit

Phase Current Inputs

Control Power

Analog Outputs

Display

Harsh Environment

469 |||||

Table 2–1: 469 Order Codes

P1 | | | |
P5 | | | |

|

LO

HI

|

|

|

|

|

|

|

A1 | |
A20 | |

||

E |
T |
D |

469 Motor Management Relay
1 A phase CT secondaries
5 A phase CT secondaries
20 to 60 V DC;

|

20 to 48 V AC at 48 to 62 Hz

|

90 to 300 V DC;

|

70 to 265 V AC at 48 to 62 Hz

|

Four (4) 0 to 1 mA analog outputs
Four (4) 4 to 20 mA analog outputs
Basic display
Enhanced display, larger LCD
Enhanced with Ethernet (10Base-T)
Enhanced display with DeviceNet
Harsh (chemical) environment conformal

H

coating

2.1.4 Example Order Codes

1. The 469-P1-LO-A20-E code specifies a 469 Motor Management Relay with 1 A CT
inputs, 20 to 60 V DC or 20 to 48 V AC control voltage, 4 to 20 mA analog outputs, and
enhanced display option with larger LCD.

2. The 469-P5-HI-A1-T-H code specifies a 469 Motor Management Relay with 5 A CT
inputs, 90 to 300 V DC or 70 to 265 V AC control voltage, 0 to 1 mA analog outputs,
enhanced display with Ethernet (10Base-T) communications, and a harsh
environment conformal coating.

2.1.5 Accessories

The following accessories are available for the 469 Motor Management Relay:

• EnerVista 469 Setup software: No-charge software provided with each relay

• Demo: Metal Carry Case in which 469 unit may be mounted

• SR 19-1 Panel: Single cutout 19-inch panel

• SR 19-2 Panel: Dual cutout 19-inch panel

• SCI Module: RS232-to-RS485 converter box designed for harsh industrial

environments

• Phase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 1000

• HGF3, HGF5, HGF8: For sensitive ground detection on high resistance grounded

systems.

• 469 1-inch Collar: For shallow switchgear, reduces the depth of the relay by 1 3/8

inches

• 469 3-inch Collar: For shallow switchgear, reduces the depth of the relay by 3

inches

• Optional Mounting Kit: Additional mounting support 1819-0030

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–5

2.2 Specifications

2.2.1 Inputs

CHAPTER 2: INTRODUCTION

Specifications are subject to change without notice.

ANALOG CURRENT INPUTS

Inputs:..................................................................0 to 1 mA, 0 to 20mA, or 4 to 20 mA (settings)

Input impedance: ..........................................226 Ω ±10%

Conversion range: .........................................0 to 21 mA

Accuracy:............................................................±1% of full scale

Type: .....................................................................passive

Analog in supply: ...........................................+24 V DC at 100 mA max.

Response time: .....................................≤100 ms

DIFFERENTIAL CURRENT INPUTS

CT primary:........................................................1 to 5000A

CT secondary: .................................................1 A or 5 A (settings)

Burden:................................................................<0.2 VA at rated load

Conversion range: .........................................0.02 to 1 × CT primary

Nominal frequency: ......................................20 to 70 Hz

Frequency range: ..........................................20 to 120 Hz

Accuracy:............................................................±0.5% of 1 × CT for 5 A

±0.5% of 5 × CT for 1 A

CT withstand: ..................................................1 second at 80 × rated current,

2 seconds at 40 × rated current , continuous at 3 × rated
current

DIGITAL INPUTS

Inputs:..................................................................9 opto-isolated inputs

External switch: ..............................................dry contact < 400 Ω, or open collector NPN transistor

from sensor; 6 mA sinking from internal 4 KΩ pull-up at
24VDC with Vce<4VDC

See Digital Inputs on page 2–10 for additional specifications.

GROUND CURRENT INPUTS

CT primary:........................................................1 to 5000 A

CT secondary: .................................................1 A or 5 A (settings)

Burden:................................................................<0.2 VA at rated load for 1 A or 5 A; <0.25 VA for 50:0.025

CTs
at 25 A

Conversion range: .........................................0.02 to 1 × CT primary

Nominal frequency: ......................................20 to 70 Hz

Frequency range: ..........................................20 to 120 Hz

Accuracy:............................................................±0.5% of 1 × CT for 5 A CTs

±0.5% of 5 × CT for 1 A CTs
±0.125 A for 50:0.025 CTs

CT (1 A/5 A) withstand:.................................1 second at 80 × rated current,

2 seconds at 40 × rated current , continuous at 3 × rated
current

CT (50:0.025) withstand: ..............................continuous at 150 mA

PHASE CURRENT INPUTS

CT primary:........................................................1 to 5000 A

2–6 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

CT secondary: .................................................1 A or 5 A (specify with order)

Burden:................................................................Less than 0.2 VA at rated load

Conversion range:..........................................0.05 to 20 × CT

Nominal frequency: ......................................20 to 70 Hz

Frequency range: ..........................................20 to 120 Hz

Accuracy: ...........................................................at < 2 × CT: ±0.5% of 2 × CT

at ≥ 2 × CT: ±1% of 20 × CT

CT withstand: ..................................................1 second at 80 × rated current,

2 seconds at 40 × rated current , continuous at 3 × rated
current

RTD INPUTS

3 wire RTD Types: ..........................................100 Ω Platinum (DIN.43760), 100 Ω Nickel, 120 Ω Nickel,

10 Ω Copper

RTD sensing current: ....................................5 mA

Isolation:.............................................................36 Vpk (isolated with analog inputs and outputs)

Range:..................................................................–50 to +250°C

Accuracy: ...........................................................±2°C

Lead resistance: .............................................25 Ω Max per lead for Pt and Ni type; 3 Ω Max per lead for

Cu type

No sensor:..........................................................>1000 Ω

Short/low alarm: ............................................<–50°C

2.2.2 Outputs

TRIP COIL SUPERVISION

Applicable voltage: .......................................20 to 300 V DC / V AC

Trickle current: ................................................2 to 5 mA

VOLTAGE INPUTS

VT ratio:...............................................................1.00 to 300.00:1 in steps of 0.01

VT secondary: .................................................273 V AC (full-scale)

Conversion range: .........................................0.05 to 1.00 × full scale

Nominal frequency: ......................................20 to 70 Hz

Frequency range: ..........................................20 to 120 Hz

Accuracy: ...........................................................±0.5% of full scale

Max. continuous: ...........................................280 V AC

Burden:................................................................>500 kΩ

Sensor supply: ................................................+24 V DC at 20 mA max.

ANALOG CURRENT OUTPUT

Type:.....................................................................Active

Range:..................................................................4 to 20 mA, 0 to 1 mA

(must be specified with order)

Accuracy: ...........................................................±1% of full scale

Max. load:...........................................................4 to 20 mA input: 1200 Ω

0 to 1 mA input: 10 kΩ

Isolation:.............................................................36 V

4 Assignable Outputs:..................................phase A, B, and C current; three-phase average current;

(isolated with RTDs and analog inputs)

pk

ground current; phase AN (AB), BN (BC), and CN (CA)
voltages; three-phase average voltage; hottest stator
RTD; hottest bearing RTD, hottest other RTD; RTDs 1 to 12;

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–7

CHAPTER 2: INTRODUCTION

power factor; 3-phase real (kW), apparent (kVA), and
reactive (kvar) power; thermal capacity used; relay
lockout time, current demand; kvar, kW, and kVA demand;
motor load, torque

OUTPUT RELAYS

Relay contacts are unsafe to touch when the 469 is energized! If the output relay
contacts are required for low voltage accessible applications, it is the customer's
responsibility to ensure proper insulation levels.

Configuration: .................................................6 Electromechanical Form C

Contact material: ..........................................silver alloy

Operate time: ..................................................10 ms

Make/carry:.......................................................10 A continuous

30 A for 0.2 s

Max ratings for 100000 operations:

VOLTAGE BREAK MAX.

DC
RESISTIVE

DC
INDUCTIVE L/
R=40ms

AC
RESISTIVE

AC
INDUCTIVE
P.F.=0.4

30 V 10 A 300 Ω
125 V 0.5 A 62.5 Ω
250 V 0.3 A 75 Ω
30 V 5 A 150 Ω
125 V 0.25 A 31.3 Ω
250 V 0.15 A 37.5 Ω

120 V 10 A 2770 VA

250 V 10 A 2770 VA

120 V 4 A 480 VA

250 V 3 A 750 VA

LOAD

2.2.3 Protection

ACCELERATION TIMER

Pickup: .................................................................transition of no phase current to > overload pickup

Dropout:..............................................................when current falls below overload pickup

Time delay: ........................................................1.0 to 250.0 s in steps of 0.1

Timing accuracy: ...........................................±100 ms or ±0.5% of total time

Elements:............................................................Trip

CURRENT UNBALANCE

Unbalance: ........................................................I2/I1 if I

I

2/I1

× I

avg
avg

> FLA

/FLA if I

avg

< FLA

Range:..................................................................0 to 100% UB in steps of 1

Pickup level:.......................................................4 to 40% UB in steps of 1

Time delay: ........................................................1 to 60 s in steps of 1

Pickup accuracy: ...........................................±2%

Timing accuracy: ...........................................±0.5 s or ± 0.5% of total time

Elements:............................................................Trip and Alarm

FREQUENCY

Req’d voltage: .................................................>30% of full scale in phase A

Overfrequency pickup: ...............................25.01 to 70.00 Hz in steps of 0.01

Underfrequency pickup: ............................20.00 to 60.00 Hz in steps of 0.01

Accuracy:............................................................±0.02 Hz

Time delay: ........................................................0.1 to 60.0 s in steps of 0.1

2–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

Timing accuracy: ...........................................<100 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

GROUND INSTANTANEOUS OVERCURRENT

Pickup level: ......................................................0.1 to 1.0 × CT primary in steps of 0.01

Time delay: ........................................................0 to 1000 ms in steps of 10

Pickup accuracy: ...........................................as per ground current input

Timing accuracy: ...........................................+50 ms

Elements:............................................................Trip and Alarm

JOGGING BLOCK

Starts/hour: 1 to 5 in steps of 1
Time between starts: 0 to 500 min.
Timing accuracy: ±0.5 s or ± 0.5% of total time
Elements: Block

MECHANICAL JAM

Pickup level: ......................................................1.01 to 3.00 × FLA in steps of 0.01 of any one phase,

blocked on start

Time delay: ........................................................1 to 30 s in steps of 1

Pickup accuracy: ...........................................as per phase current inputs

Timing accuracy: ...........................................±0.5 s

Elements:............................................................Trip

OVERLOAD / STALL PROTECTION / THERMAL MODEL

Overload curves: ...........................................15 standard overload curves, custom curve, voltage

dependent custom curve for high inertia starting (all

curves time out against average phase current)

Biasing:................................................................Phase unbalance

Hot/cold curve ratio

Stator RTD

Running cool rate

Stopped cool Rate

Line voltage

Overload pickup: ...........................................1.01 to 1.25 (for service factor)

Pickup accuracy: ...........................................as per phase current Inputs

Timing accuracy: ...........................................±100 ms or ±2% of total time

Elements:............................................................Trip and Alarm

OVERVOLTAGE

Pickup level: ......................................................1.01 to 1.10 × rated in steps of 0.01 of any one phase

Time delay: ........................................................0.1 to 60.0 s in steps of 0.1

Pickup accuracy: ...........................................as per voltage inputs

Timing accuracy: ...........................................±100 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

PHASE DIFFERENTIAL INSTANTANEOUS OVERCURRENT

Pickup level: ......................................................0.05 to 1.0 × CT primary in steps of 0.01 of any one phase

Time delay: ........................................................0 to 1000 ms in steps of 10

Pickup accuracy: ...........................................as per phase differential current inputs

Timing accuracy: ...........................................+50 ms

Elements:............................................................Trip

PHASE SHORT CIRCUIT

Pickup level: ......................................................2.0 to 20.0 × CT primary in steps of 0.1 of any one phase

Time delay: ........................................................0 to 1000 ms in steps of 10

Pickup accuracy: ...........................................as per phase current inputs

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–9

CHAPTER 2: INTRODUCTION

Timing accuracy: ...........................................+50 ms

Elements:............................................................Trip

REDUCED VOLTAGE START

Transition level: ..............................................25 to 300% FLA in steps of 1

Transition time: ...............................................1 to 600 s in steps of 1

Transition control: .........................................Current, Timer, Current and Timer

RESTART BLOCK

Time delay: ........................................................1 to 50000 s in steps of 1

Timing accuracy: ...........................................±0.5 s or ±0.5% of total time

Elements:............................................................Block

RTD

Pickup: .................................................................1 to 250°C in steps of 1

Pickup hysteresis: ..........................................2°C

Time delay: ........................................................3 s

Elements:............................................................Trip and Alarm

UNDERCURRENT

Pickup level:.......................................................0.10 to 0.95 × CT primary in steps of 0.01 of any one

phase

Time delay: ........................................................1 to 60 s in steps of 1

Block from start: ............................................0 to 15000 s in steps of 1

Pickup accuracy: ...........................................as per phase current inputs

Timing accuracy: ...........................................±0.5 s or ±0.5% of total time

Elements:............................................................Trip and Alarm

UNDERVOLTAGE

Pickup Level:

Time delay: ........................................................0.1 to 60.0 s in steps of 0.1

Pickup accuracy: ...........................................as per voltage inputs

Timing accuracy: ...........................................<100 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

VOLTAGE PHASE REVERSAL

Configuration: .................................................ABC or ACB phase rotation

Timing Accuracy: ...........................................500 to 700 ms

Elements:............................................................Trip

2.2.4 Digital Inputs

DIGITAL COUNTER

Configuration: .................................................assign to digital inputs 1 to 4

Frequency:.............................................≤50 times a second

Range:..................................................................0 to 1 000 000 000

Elements:............................................................Alarm

GENERAL PURPOSE SWITCH

Configuration: .................................................assign to digital inputs 1 to 4

Time delay: ........................................................0.1 to 5000.0 s in steps of 0.1

Block from start: ............................................0 to 5000 s in steps of 1

Timing accuracy: ...........................................±250 ms or ±0.5% of total time

Motor starting: .............................................0.60 to 0.99 × Rated in steps of 0.01

Motor running: .............................................0.60 to 0.99 × Rated in steps of 0.01 of any one phase

2–10 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

Elements:............................................................Trip and Alarm

LOAD SHED

Configuration: .................................................assign to digital inputs 1 to 4

Timing accuracy: ...........................................100 ms maximum

Elements:............................................................Trip

PRESSURE SWITCH

Configuration: .................................................assign to digital inputs 1 to 4

Time delay: ........................................................0.1 to 100.0 s in steps of 0.1

Block from start: ............................................0 to 5000 s in steps of 1

Timing accuracy: ...........................................±250 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

REMOTE SWITCH

Configuration: .................................................assign to digital inputs1 to 4

Timing accuracy: ...........................................100 ms maximum

Elements:............................................................Trip and Alarm

SPEED SWITCH

Configuration: .................................................assign to digital inputs1 to 4

Time delay: ........................................................1.0 to 250.0 s in steps of 0.1

Timing accuracy: ...........................................250 ms maximum

Elements:............................................................Trip

2.2.5 Monitoring

TACHOMETER

Configuration: .................................................assign to digital inputs 1 to 4

Range:..................................................................100 to 7200 RPM

Pulse duty cycle: ............................................>10%

Elements:............................................................Trip and Alarm

VIBRATION SWITCH

Configuration: .................................................assign to digital inputs 1 to 4

Time delay: ........................................................0.1 to 100.0 s in steps of 0.1

Timing accuracy: ...........................................±250 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

DEMAND

Metering: ............................................................maximum phase current

three-phase real power
three-phase apparent power

three-phase reactive power

Measurement type: ......................................rolling demand

Demand interval: ...........................................5 to 90 min. in steps of 1

Update rate:......................................................1 minute

Elements:............................................................Alarm

METERED REACTIVE ENERGY CONSUMPTION

Description:.......................................................Continuous total reactive energy consumption

Range:..................................................................0 to 999999.999 Mvar·hours

Timing accuracy: ...........................................±0.5%

Update rate:......................................................5 seconds

METERED REACTIVE ENERGY GENERATION

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–11

CHAPTER 2: INTRODUCTION

3

3

3

3

3

3

Description: .......................................................Continuous total reactive energy generation

Range:..................................................................0 to 2000000.000 Mvar·hours

Timing accuracy: ...........................................±0.5%

Update Rate:.....................................................5 seconds

METERED REAL ENERGY CONSUMPTION

Description: .......................................................Continuous total real energy consumption

Range:..................................................................0 to 999999.999 MW·hours.

Timing accuracy: ...........................................±0.5%

Update rate:......................................................5 seconds

OVERTORQUE

Pickup level:.......................................................0.1 to 999999.9 Nm/ft·lb in steps of 0.1; torque unit is

selectable under torque setup

Time delay: ........................................................0.2 to 30.0 s in steps of 0.1

Pickup accuracy: ...........................................±2.0%

Time accuracy: ................................................±100 ms or 0.5% of total time

Elements:............................................................Alarm (induction motors only)

POWER FACTOR

Range:..................................................................0.01 lead or lag to 1.00

Pickup level:.......................................................0.99 to 0.05 in steps of 0.01, lead and lag

Time delay: ........................................................0.2 to 30.0 s in steps of 0.1

Block from start: ............................................0 to 5000 s in steps of 1

Pickup accuracy: ...........................................±0.02

Timing accuracy: ...........................................±100 ms or ±0.5% of total time

Elements:............................................................Trip and Alarm

THREE-PHASE APPARENT POWER

Range:..................................................................0 to 65535 kVA

Accuracy:............................................................I

< 2 × CT: ±1% of × 2 × CT × VT × VT

avg

I

> 2 × CT: ±1.5% of × 20 × CT × VT × VT

avg

Elements:............................................................Trip and Alarm

THREE-PHASE REACTIVE POWER

Range:..................................................................0 to ±99999 kvar

Pickup level:.......................................................±1 to 25000 kvar in steps of 1

Time delay: ........................................................0.2 to 30.0 s in steps of 0.1

Block from start:..............................................0 to 5000 s in steps of 1

Pickup accuracy:.............................................at I

< 2 × CT: ±1% of × 2 × CT × VT × VT

avg

at I

> 2 × CT: ±1.5% of × 20 × CT × VT × VT

avg

Timing accuracy: ...........................................±100ms or ± 0.5% of total time

Elements:............................................................Trip and Alarm

THREE-PHASE REAL POWER

Range:..................................................................0 to ±99999 kW

Pickup: .................................................................1 to 25000 kW in steps of 1

Time delay: ........................................................1 to 30 s in steps of 1

Block from start: ............................................0 to 15000 s in steps of 1

Pickup Accuracy: ............................................at I

< 2 × CT:±1% of × 2 × CT × VT × VT

avg

at I

> 2 × CT±1.5% of × 20 × CT × VT × VT

avg

Timing accuracy: ...........................................±0.5 s or ±0.5% of total time

full scale

full scale

full scale

full scale

full scale

full scale

2–12 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

2.2.6 Power Supply

CONTROL POWER

Options:...............................................................LO / HI (must be specified with order)

LO range:............................................................20 to 60 V DC

20 to 48 V AC at 48 to 62 Hz

HI range:.............................................................90 to 300 V DC

70 to 265 V AC at 48 to 62 Hz

Power:..................................................................45 VA (max), 25 VA typical

Total loss of voltage ride through time

(0% control power): 16.7 ms

FUSE (HI and LO VOLT)

Current rating: ................................................2.50 A

Type:.....................................................................5 × 20 mm SLO-BLO HRC Littelfuse, high breaking

capacity

Model no.:...........................................................215-02.5

Note

An external fuse must be used if the supply voltage exceeds 250 V.

2.2.7 CPU

COMMUNICATIONS

RS232 port:........................................................1, front panel, non-isolated

RS485 ports:......................................................2, isolated together at 36 V

Baud rates:........................................................300, 1200, 2400, 4800, 9600, and 19200 (for RS485);

9600 (for RS232)

Parity:...................................................................None, Odd, Even

Ethernet:.............................................................10Base-T RJ45 connector

Modbus TCP/IP

Version 2.0 / IEEE 802.3

MODBUS

Modbus:..............................................................Modbus® RTU / half-duplex

DEVICENET

Baud rate: ..........................................................125K, 250K, 500K

MAC ID:................................................................0 to 63 range

Connection type: ...........................................Explicit Messages, Poll I/O, Change Of State

ODVA certified

pk

CLOCK

Accuracy: ...........................................................±1 minute/month

Supercap backup life: .................................45 days when control power is off

2.2.8 Testing

TYPE TESTING

The table below lists the 469 type tests:

Standard Test Name Level

EIA 485 RS485 Communications Test 32 units at 4000 ft.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–13

CHAPTER 2: INTRODUCTION

Standard Test Name Level

GE Multilin Temperature Cycling –50°C / +80°C

IEC 60068-2-38 Composite Temperature/Humidity 65/–10°C at 93% RH

IEC 60255-5 Dielectric Strength 2300 V AC

IEC 60255-5 Impulse Voltage 5 kV

IEC 60255-5 Insulation Resistance >100 MΩ / 500 V AC / 10 s

IEC 60255-21-1 Sinusoidal Vibration 2 g

IEC 60255-22-1 Damped Oscillatory Burst , 1 MHz 2.5 kV / 1 kV

IEC 60255-22-2 Electrostatic Discharge: Direct 8 kV

IEC 60255-22-3 Radiated RF Immunity 10 V/m

IEC 60255-22-4 Electrical Fast Transient / Burst Immunity 4 kV

IEC 60255-22-5 Surge Immunity 4 kV / 2 kV

IEC 60255-22-6 Conducted RF Immunity, 150 kHz to 80 MHz 10 V/m

IEC 60255-25 Radiated RF Emission Group 1 Class A

IEC 60255-25 Conducted RF Emission Group 1 Class A

2.2.9 Certification

IEC 60529 Ingress of Solid Objects and Water (IP) IP40 (front), IP20 (back)

IEC 61000-4-11 Voltage Dip; Voltage Interruption 0%, 40%, 100%

IEEE C37.90.1 Fast Transient SWC ±4 kV

IEEE C37.90.1 Oscillatory Transient SWC ±2.5 kV

IEEE C37.90.3 Electrostatic Discharge: Air and Direct 15 kV / 8 kV

PRODUCTION TESTS

Thermal cycling: .............................................operational test at ambient, reducing to –40°C and then

increasing to 60°C

Dielectric strength: .......................................1.9 kV AC for 1 second, or 1.6 kV AC for 1 minute, per UL

508.

DO NOT CONNECT FILTER GROUND TO SAFETY GROUND DURING ANY PRODUCTION
TESTS!

CERTIFICATION

ACA:.......................................................................conforms to RF emissions for Australia, tick mark

CE:..........................................................................conforms to EN 55011/CISPR 11, EN 50082-2

EN: .........................................................................EN50263 EMC - CE for Europe

FCC:.......................................................................conforms to RF emissions for North America, part 15

IEC:.........................................................................conforms to 1010-1, LVD - CE for Europe

ISO: ........................................................................Manufactured under an ISO9001 registered system.

UL:..........................................................................UL listed E83849 for the USA and Canada

2–14 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 2: INTRODUCTION

2.2.10 Physical

2.2.11 Environmental

CASE

Type:.....................................................................Fully drawout (automatic CT shorts)

Seal: ......................................................................Seal provision

Mounting:...........................................................Panel or 19-inch rack mount

IP Class:...............................................................IP40-X

PACKAGING

Shipping box:....................................................12” × 11” × 10” (W × H × D)

30.5 cm × 27.9 cm × 25.4 cm

Shipping weight: ............................................17 lbs Max / 7.7 kg

TERMINALS

Low voltage (A, B, C, D terminals):

12 AWG maximum
High voltage (E, F, G, H terminals):

#8 ring lug, 10 AWG wire std.

ENVIRONMENT

Ambient operating temperature:

–40°C to +60°C
Ambient storage temperature:

–40°C to +80°C

Humidity:............................................................up to 90%, non-condensing.

Altitude:...............................................................up to 2000 m

Pollution degree: ............................................2

Note

At temperatures less than –20°C, the LCD contrast may be impaired.

2.2.12 Long-term Storage

LONG-TERM STORAGE

Environment:....................................................In addition to the above environmental considerations,

the relay should be stored in an environment that is dry,

corrosive-free, and not in direct sunlight.

Correct storage:..............................................Prevents premature component failures caused by

environmental factors such as moisture or corrosive

gases. Exposure to high humidity or corrosive

environments will prematurely degrade the electronic

components in any electronic device regardless of its use

or manufacturer, unless specific precautions, such as

those mentioned in the Environment section above, are

taken.

Note

It is recommended that all relays be powered up once per year, for one hour
continuously, to avoid deterioration of electrolytic capacitors and subsequent relay
failure.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 2–15

CHAPTER 2: INTRODUCTION

2–16 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

Digital Energy

Multilin

469 Motor Management Relay

Chapter 3: Installation

Installation

3.1 Mechanical Installation

3.1.1 Description

The 469 is packaged in the standard GE Multilin SR-series arrangement, which consists of
a drawout unit and a companion fixed case. The case provides mechanical protection to
the unit and is used to make permanent connections to all external equipment. The only
electrical components mounted in the case are those required to connect the unit to the
external wiring. Connections in the case are fitted with mechanisms required to allow the
safe removal of the relay unit from an energized panel (for example, automatic CT
shorting). The unit is mechanically held in the case by pins on the locking handle that
cannot be fully lowered to the locked position until the electrical connections are
completely mated. Any 469 can be installed in any 469 case, except for custom
manufactured units that are clearly identified as such on both case and unit, and are
equipped with an index pin keying mechanism to prevent incorrect pairings.

No special ventilation requirements need to be observed during the installation of the unit.
The 469 can be cleaned with a damp cloth.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–1

CHAPTER 3: INSTALLATION

FIGURE 3–1: Dimensions

To prevent unauthorized removal of the drawout unit, a wire lead seal can be installed in
the slot provided on the handle. With this seal in place, the drawout unit cannot be
removed. A passcode or settings access jumper can be used to prevent entry of settings
but allow monitoring of actual values. If access to the front panel controls must be
restricted, a separate seal can be installed on the cover to prevent it from being opened.

Hazard may result if the product is not used for its intended purpose.

3.1.2 Product Identification

Each 469 unit and case are equipped with a permanent label. This label is installed on the
left side (when facing the front of the relay) of both unit and case. The case label details
which units can be installed.

FIGURE 3–2: Seal on Drawout Unit

The case label details the following information: model number, manufacture date, and
special notes.

3–2 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

The unit label details the following information: model number, type, serial number,
manufacture date, phase current inputs, special notes, overvoltage category, insulation
voltage, pollution degree, control power, and output contact rating.

3.1.3 Installation

FIGURE 3–3: Case and Unit Identification Labels

The 469 case, alone or adjacent to another SR-series unit, can be installed in the panel of a
standard 19-inch rack (see below for panel cutout dimensions). Provision must be made
when mounting for the front door to swing open without interference to, or from, adjacent
equipment. Normally the 469 unit is mounted in its case when shipped from the factory,
and should be removed before mounting the case in the supporting panel. Unit withdrawal
is described in the next section.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–3

FIGURE 3–4: Single 469 Cutout Panel

CHAPTER 3: INSTALLATION

FIGURE 3–5: Double 469 Cutout Panel

After the mounting hole in the panel has been prepared, slide the 469 case into the panel
from the front. Applying firm pressure on the front to ensure the front bezel fits snugly
against the front of the panel, bend out the pair of retaining tabs (to a horizontal position)
from each side of the case as shown below. The case is now securely mounted, ready for
panel wiring. If additional support is desired, the SR optional mounting kit may be ordered.

3–4 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

808704A1.CDR

3.1.4 Unit Withdrawal and Insertion

FIGURE 3–6: Bend Up Mounting Tabs

TURN OFF CONTROL POWER BEFORE DRAWING OUT OR RE-INSERTING THE RELAY TO
PREVENT MALOPERATION!

If an attempt is made to install a unit into a non-matching case, the mechanical key
will prevent full insertion of the unit. Do not apply strong force in the following step or
damage may result.

To remove the unit from the case:

Z Open the cover by grasping the center of the right side and then pulling

the cover, which will rotate about the hinges on the left.

Z Release the locking latch, located below the locking handle, by pressing

upward on the latch with the tip of a screwdriver.

FIGURE 3–7: Press Latch to Disengage Handle

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–5

CHAPTER 3: INSTALLATION

Z While holding the latch raised, grasp the locking handle in the center

and pull firmly, rotating the handle up from the bottom of the unit until
movement ceases.

FIGURE 3–8: Rotate Handle to Stop Position

Once the handle is released from the locking mechanism, the unit can freely slide
out of the case when pulled by the handle. It may sometimes be necessary to
adjust the handle position slightly to free the unit.

FIGURE 3–9: Slide Unit out of Case

To insert the unit into the case:

Z Raise the locking handle to the highest position.

Z Hold the unit immediately in front of the case and align the rolling guide

pins (near the hinges of the locking handle) to the guide slots on either
side of the case.

Z Slide the unit into the case until the guide pins on the unit have engaged

the guide slots on either side of the case.

Z Grasp the locking handle from the center and press down firmly,

rotating the handle from the raised position toward the bottom of the
unit.

3–6 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.1.5 Ethernet Connection

When the unit is fully inserted, the latch will be heard to click, locking the handle in
the final position.

No special ventilation requirements need to be observed during the installation of the
unit. The unit does not require cleaning.

If using the 469 with the Ethernet 10Base-T option, ensure that the network cable is
disconnected from the rear RJ45 connector before removing the unit from the case. This
prevents any damage to the connector.

The unit may also be removed from the case with the network cable connector still
attached to the rear RJ45 connector, provided that there is at least 16" of network cable
available when removing the unit from the case. This extra length allows the network cable
to be disconnected from the RJ45 connector from the front of the switchgear panel. Once
disconnected, the cable can be left hanging safely outside the case for re-inserting the unit
back into the case.

The unit may then be re-inserted by first connecting the network cable to the units' rear
RJ45 connector (see step 3 of Unit Withdrawal and Insertion on page 3–5).

Ensure that the network cable does not get caught inside the case while sliding in the
unit. This may interfere with proper insertion to the case terminal blocks and damage
the cable.

FIGURE 3–10: Ethernet Cable Connection

To ensure optimal response from the relay, the typical connection timeout should be set as
indicated in the following table:

TCP/IP sessions Timeout setting

up to 2 2 seconds
up to 4 3 seconds

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–7

3.1.6 DeviceNet Connection

If using the 469 DeviceNet option (Refer to GEK-106491C: 469 Communications Guide),
ensure that the network cable is disconnected from the rear terminal block before
removing the unit out of the case to prevent any damage to the connector.

The unit may also be removed from the case with the network cable connector still
attached to the rear terminal block provided that there is at least 16" of network cable
available when removing the unit out of the case. This extra length will allow the network
cable to be disconnected from the terminal block from the front of the switchgear panel.
Once disconnected, the cable can be left hanging safely outside the case for re-inserting
the unit back into the case.

The unit may then be re-inserted by first connecting the network cable to the units' rear
terminal block (see step 3 of Unit Withdrawal and Insertion on page 3–5).

Ensure that the network cable does not get caught inside the case while sliding in the
unit. This may interfere with proper insertion to the case terminal blocks and damage
the cable.

The DeviceNet port has the following characteristics:

• Connector type: 5-pin Phoenix connector

• Baud rate: 125K, 250K or 500K baud

• Protocol: DeviceNet

CHAPTER 3: INSTALLATION

The following ports available simultaneously:

• RS232, 2 × RS485/422 with no DeviceNet option

• RS232, 1 × RS485/422 with DeviceNet option

The DeviceNet configuration is shown in the following table:

Pin Signal Description

1 V– Negative supply voltage
2CAN_L CAN_L bus line
3 SHIELD Cable shield
4CAN_H CAN_H bus line
5 V+ Positive supply voltage

3–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.1.7 Terminal Locations

FIGURE 3–11: Terminal Layout

3.1.8 Terminal List

Table 3–1: 469 Terminal List

Terminal Description Terminal Description

A01 RTD #1 Hot D21 Assignable Switch 3
A02 RTD #1 Compensation D22 Assignable Switch 4
A03 RTD Return D23 Switch Common
A04 RTD #2 Compensation D24 Switch +24 V DC
A05 RTD #2 Hot D25 Computer RS485 +
A06 RTD #3 Hot D26 Computer RS485 –
A07 RTD #3 Compensation D27 Computer RS485 Common
A08 RTD Return E01 1 Trip NC

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–9

CHAPTER 3: INSTALLATION

Table 3–1: 469 Terminal List

Terminal Description Terminal Description

A09 RTD #4 Compensation E02 1 Trip NO
A10 RTD #4 Hot E03 2 Auxiliary Common
A11 RTD #5 Hot E04 3 Auxiliary NC
A12 RTD #5 Compensation E05 3 Auxiliary NO
A13 RTD Return E06 4 Alarm COMMON
A14 RTD #6 Compensation E07 5 Block Start NC
A15 RTD #6 Hot E08 5 Block Start NO
A16 Analog Output Common – E09 6 Service Common
A17 Analog Output 1 + E10 not used
A18 Analog Output 2 + E11 Coil Supervision +
A19 Analog Output 3 + E12 469 Drawout Indicator
A20 Analog Output 4 + F01 1 Trip Common
A21 Analog Shield F02 2 Auxiliary NO
A22 Analog In 24 V DC Power Supply + F03 2 Auxiliary NC
A23 Analog Input 1 + F04 3 Auxiliary COMMON
A24 Analog Input 2 + F05 4 Alarm NO
A25 Analog Input 3 + F06 4 Alarm NC
A26 Analog Input 4 + F07 5 Block Start Common
A27 Analog Input Common – F08 6 Service NO
B01 RTD Shield F09 6 Service NC
B02 Auxiliary RS485 + F10 not used
B03 Auxiliary RS485 – F11 Coil Supervision –
B04 Auxiliary RS485 Common F12 469 Drawout Indicator
C01 Access + G01 Phase VT Neutral
C02 Access – G02 Phase A VT •
C03 469 Under Test + G03 Differential A CT •
C04 469 Under Test – G04 Differential B CT •
D01 RTD #7 Hot G05 Differential C CT •
D02 RTD #7 Compensation G06 Phase A CT •
D03 RTD Return G07 Phase B CT •
D04 RTD #8 Compensation G08 Phase C CT •
D05 RTD #8 Hot G09 1A/5A Ground CT •
D06 RTD #9 Hot G10 50:0.025 Ground CT •
D07 RTD #9 Compensation G11 Filter Ground
D08 RTD Return G12 Safety Ground
D09 RTD #10 Compensation H01 Phase B VT •
D10 RTD #10 Hot H02 Phase C VT •
D11 RTD #11 Hot H03 Differential A CT
D12 RTD #11 Compensation H04 Differential B CT
D13 RTD Return H05 Differential C CT
D14 RTD #12 Compensation H06 Phase A CT
D15 RTD #12 Hot H07 Phase B CT
D16 Starter Status H08 Phase C CT
D17 Emergency Restart H09 1A/5A Ground CT
D18 Remote Reset H10 50:0.025 Ground CT
D19 Assignable Switch 1 H11 Control Power –
D20 Assignable Switch 2 H12 Control Power +

3–10 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.2 Electrical Installation

3.2.1 Typical Wiring

FIGURE 3–12: Typical Wiring Diagram

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–11

3.2.2 Description

A broad range of 469 applications are available. Although it is not possible to present
typical connections for all possible schemes, this section will cover the interconnections of
instrument transformer inputs, other inputs, outputs, communications, and grounding. See
FIGURE 3–11: Terminal Layout on page 3–9 and Table 3–1: 469 Terminal List on page 3–9
for terminal arrangement.

3.2.3 Control Power

The order code from the terminal label on the side of the drawout unit specifies the
nominal control voltage as follows:

Ensure applied control voltage and rated voltage on drawout case terminal label match.
For example, the HI power supply will work with any DC voltage from 90 to 300 V, or AC
voltage from 70 to 265 V. The internal fuse may blow if the applied voltage exceeds this
range.

CHAPTER 3: INSTALLATION

LO: 20 to 60 V DC; 20 to 48 V AC, or
HI: 90 to 300 V DC; 70 to 265 V AC

The 469 control power must match the installed switching power supply. If the applied
voltage does not match, damage to the unit may occur!

FIGURE 3–13: Control Power Connection

Extensive filtering and transient protection are built into the 469 to ensure proper
operation in harsh industrial environments. Transient energy must be conducted back to
the source through the filter ground terminal. A separate safety ground terminal is
provided for hi-pot testing.

All grounds MUST be hooked up for normal operation regardless of control power
supply type.

3–12 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.2.4 Current Inputs

Phase Current Inputs

The 469 has three channels for phase current inputs, each with an isolating transformer.
There are no internal ground connections on the current inputs. If the unit is withdrawn,
each phase CT circuit is shorted by automatic mechanisms on the 469 case. The phase CTs
should be chosen so the FLA is no less than 50% of the rated phase CT primary. Ideally, the
phase CT primary should be chosen such that the FLA is 100% of the phase CT primary or
slightly less, never more. This will ensure maximum accuracy for the current
measurements. The maximum phase CT primary current is 5000 A.

The 469 correctly measures up to 20 times the phase current nominal rating. Since the
conversion range is large, 1 A or 5 A CT secondaries must be specified at the time of order
to ensure the appropriate interposing CT is installed in the unit. The chosen CTs must be
capable of driving the 469 phase CT burden (see Specifications on page 2–6 for ratings).

Verify that the 469 nominal phase current of 1 A or 5 A matches the secondary rating
and connections of the connected CTs. Unmatched CTs may result in equipment
damage or inadequate protection. Polarity of the phase CTs is critical for Negative
Sequence Unbalance calculation, power measurement, and residual ground current
detection (if used).

See Two-Phase CT Configuration on page A–1 for 2-phase CT information.

Ground Current Input

The 469 has a dual primary isolating transformer for ground CT connection. There are no
internal ground connections on the ground current inputs. The ground CT circuits are
shorted by automatic mechanisms on the 469 case if the unit is withdrawn. The 1 A / 5 A
tap is used either for zero-sequence / core balance applications or residual ground
connections where the summation of the three phase current CTs is passed through the
ground current input (see the figure below). The maximum ground CT primary current is
5000A for the 1A / 5A tap. Alternatively, the 50:0.025 ground CT input has been designed
for sensitive ground current detection on high resistance grounded systems where the GE
Multilin 50:0.025 core-balance CT is to be used. For example, in mining applications where
earth leakage current must be measured for personnel safety, primary ground current as
low as 0.25 A may be detected with the GE Multilin 50:0.025 CT. Only one ground CT input
tap should be used on a given unit.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–13

CHAPTER 3: INSTALLATION

FIGURE 3–14: Residual Ground CT Connection

The 469 measures up to 5 A secondary current if the 1 A / 5 A tap is used. Since the
conversion range is relatively small, the 1 A or 5 A option is field programmable. Proper
selection of this settings ensures proper reading of primary ground current. The 1 A / 5 A
ground CT chosen must be capable of driving the 469 ground CT burden (see Specifications
on page 2–6). The 469 measures up to 25 A of primary ground current if this tap is used in
conjunction with the GE Multilin core balance CT.

Note

The zero-sequence connection is recommended. Unequal saturation of CTs, size and
location of motor, resistance of power system and motor core saturation density, etc.,
may cause false readings in the residually connected GF circuit.

Note

Only one ground input should be wired – the other input should be unconnected.

The exact placement of a zero-sequence CT to detect only ground fault current is shown
below. If the core balance CT is placed over shielded cable, capacitive coupling of phase
current into the cable shield during motor starts may be detected as ground current unless
the shield wire is also passed through the CT window. Twisted pair cabling on the zero­sequence CT is recommended.

3–14 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

FIGURE 3–15: Core Balance Ground CT Installation – Unshielded Cable

FIGURE 3–16: Core Balance Ground CT Installation – Shielded Cable

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–15

CHAPTER 3: INSTALLATION

Differential Current Inputs

The 469 has three channels for differential current inputs, each with an isolating
transformer. There are no internal ground connections on the current inputs. Each
differential CT circuit is shorted by automatic mechanisms on the 469 case if the unit is
withdrawn. The maximum differential CT primary current is 5000 A.

The 469 measures up to 5 A secondary current for the differential CT inputs. Since the
conversion range is relatively small, the 1 A or 5 A option is field programmable. Proper
selection of this settings ensures proper reading of primary phase differential current. The
1 A / 5 A differential CT chosen must be capable of driving the 469 differential CT burden
(see Specifications on page 2–6 for ratings).

The differential CTs may be core balance as shown in the first figure below. Alternatively,
the summation of two CTs per phase into the differential input will provide a larger zone of
protection. If the summation of two CTs is used, observation of CT polarity is important. The
summation method may also be implemented using the phase CTs as shown below. They
will have to have the same CT ratio.

FIGURE 3–17: Core Balance Method

3–16 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

FIGURE 3–18: Summation Method with Phase CTs

FIGURE 3–19: Summation Method without Phase CTs

3.2.5 Voltage Inputs

The 469 has three channels for AC voltage inputs, each with an isolating transformer.
There are no internal fuses or ground connections on the voltage inputs. The maximum VT
ratio is 300.00:1. The two VT connections are open delta (see FIGURE 3–12: Typical Wiring
Diagram on page 3–11) or wye (see below). The voltage channels are connected in wye
internally, which means that the jumper shown on the delta-source connection of the
typical wiring diagram, between the phase B input and the 469 neutral terminal, must be
installed for open delta VTs.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–17

CHAPTER 3: INSTALLATION

Polarity of the VTs is critical for correct power measurement and voltage phase reversal
operation.

A 1 A fuse is typically used to protect the inputs.

FIGURE 3–20: Wye Voltage Transformer Connection

3.2.6 Digital Inputs

Note

The digital inputs of the 469 relay are designed for dry contact connection. In an
application where the contact inputs need to be connected to the 469 relay digital inputs
using long cable, it is recommended that you use interposing auxiliary contacts to
interface between the 469 relay and the long digital input cable. This will help prevent the
relay falsely sensing the digital input as "closed" due to induced voltage on the cables as a
result of the capacitive effect. It is recommended that you use shielded twisted pair wires
grounded at one end only, for digital inputs and avoid locating these wires in close to
current carrying cables, contactors or other sources of high EMI.

DO NOT INJECT VOLTAGES TO DIGITAL INPUTS. DRY CONTACT CONNECTIONS ONLY.

There are 9 digital inputs designed for dry contact connections only. Two of the digital
inputs (Access and Test) have their own common terminal; the balance of the digital inputs
share one common terminal (see FIGURE 3–12: Typical Wiring Diagram on page 3–11).

3–18 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.2.7 Analog Inputs

In addition, the +24 V DC switch supply is brought out for control power of an inductive or
capacitive proximity probe. The NPN transistor output could be taken to one of the
assignable digital inputs configured as a counter or tachometer. Refer to Specifications on
page 2–6 for maximum current draw from the +24 V DC switch supply.

The 469 provides terminals for four 0 to 1mA, 0 to 20mA, or 4 to 20mA current input signals
(field programmable). This current signal can be used to monitor external quantities such
as vibration, pressure, or flow. The four inputs share one common return. Polarity of these
inputs must be observed for proper operation The analog input circuitry is isolated as a
group with the analog output circuitry and the RTD circuitry. Only one ground reference
should be used for the three circuits. Transorbs limit this isolation to ±36 V with respect to
the 469 safety ground.

In addition, the +24 V DC analog input supply is brought out for control power of loop
powered transducers. Refer to Specifications on page 2–6 for maximum current draw from
this supply.

FIGURE 3–21: Loop Powered Transducer Connection

3.2.8 Analog Outputs

The 469 provides 4 analog output channels which may be ordered to provide a full-scale
range of either 0 to 1 mA (into a maximum 10 kΩ impedance) or 4 to 20 mA (into a
maximum 1200 Ω impedance). Each channel can be configured to provide full-scale
output sensitivity for any range of any measured parameter.

As shown in FIGURE 3–12: Typical Wiring Diagram on page 3–11, these outputs share one
common return. Polarity of these outputs must be observed for proper operation. Shielded
cable should be used, with only one end of the shield grounded, to minimize noise effects.

The analog output circuitry is isolated as a group with the Analog Input circuitry and the
RTD circuitry. Only one ground reference should be used for the three circuits. Transorbs
limit this isolation to ±36 V with respect to the 469 safety ground.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–19

If a voltage output is required, a burden resistor must be connected at the input of the

MOTOR

STARTER

MOTOR

3WIRE SHIELDEDCABLE

RTD
TERMINALS
IN MOTOR
STARTER

RTD TERMINALS
AT MOTOR

Maximum totallead resistance
25 ohms (Platinum & Nickel RTDs)
3 ohms (Copper RTDs)

Route cable in separate conduit from
current carrying conductors

RTD IN
MOTOR
STATOR
OR
BEARING

806819A5.CDR

B1

A1

A2

A3

HOT

COMPENSATION

RETURN

SHIELD

CHASSIS
GROUND

RTD SENSING

RTD #1

469

RELAY

SCADA measuring device. Ignoring the input impedance of the input, R
For 0 to 1 mA, for example, if 5 V full scale is required to correspond to 1 mA, R

0.001 A = 5000 Ω. For 4 to 20 mA, this resistor would be R

3.2.9 RTD Sensor Connections

Description

The 469 monitors up to 12 RTD inputs for Stator, Bearing, Ambient, or Other temperature
monitoring. The type of each RTD is field programmable as 100 Ω Platinum (DIN 43760),
100 Ω Nickel, 120 Ω Nickel, or 10 Ω Copper. RTDs must be three wire type. Every two RTDs
shares a common return.

The RTD circuitry compensates for lead resistance, provided that each of the three leads is
the same length. Lead resistance should not exceed 25 Ω per lead for platinum/nickel
RTDs or 3 Ω per lead for copper RTDs. Shielded cable should be used to prevent noise
pickup in the industrial environment. RTD cables should be kept close to grounded metal
casings and away from areas of high electromagnetic or radio interference. RTD leads
should not be run adjacent to or in the same conduit as high current carrying wires.

CHAPTER 3: INSTALLATION

= V

load

= 5 V / 0.020 A = 250 Ω.

load

full scale

load

/ I

max

=5V /

.

FIGURE 3–22: RTD Wiring

Note

IMPORTANT: The RTD circuitry is isolated as a group with the Analog Input circuitry and
the Analog Output circuitry. Only one ground reference should be used for the three
circuits. Transorbs limit this isolation to ±36 V with respect to the 469 safety ground.

Reduced RTD Lead Number Application

The 469 requires three leads to be brought back from each RTD: Hot, Return and
Compensation. This can be quite expensive. It is however possible to reduce the number of
leads required to 3 for the first RTD and 1 for each successive RTD. Refer to the figure below
for wiring configuration for this application.

3–20 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

808722A2.CDR

Hot

Compensation

RTD Return

Compensation

Hot

Hot

Compensation

RTD Return

A1

A2

A3

A4

A5

A6

A7

A8

L1

L2

L3

L4

L5

L6

L7

No connection

469

J1

J2

Motor Control

Terminal Box

Motor

RTD1

+

–

RTD2

+

–

RTD3

+

–

J3

J4

FIGURE 3–23: Reduced Wiring RTDs

The Hot line would have to be run as usual for each RTD. The Compensation and Return
leads, however, need only be run for the first RTD. At the motor RTD terminal box, the RTD
Return leads must be jumpered together with as short as possible jumpers. The
Compensation leads must be jumpered together at the 469.

Note that an error is produced on each RTD equal to the voltage drop across the jumper on
the RTD return. This error increases with each successive RTD added.

V

= V

RTD1

V

RTD2

V

RTD3

= V
= V

RTD1

RTD2

RTD3

+ V
+ V

J3

+ VJ4, etc.

J3

This error is directly dependent on the length and gauge of the wire used for the jumpers
and any error introduced by a poor connection. For RTD types other than 10 Ω Copper, the
error introduced by the jumpers is negligible. Although this RTD wiring technique reduces
the cost of wiring, the following disadvantages must be noted:

1. There will be an error in temperature readings due to lead and connection resistances.

This technique is NOT recommended for 10 Ω Copper RTDs.

2. If the RTD Return lead to the 469 or any of the jumpers break, all RTDs from the point

of the break will read open.

3. If the Compensation lead or any of the jumpers break, all RTDs from the point of the

break will function without any lead compensation.

Two-Wire RTD Lead Compensation

An example of how to add lead compensation to a two wire RTD may is shown in the figure
below.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–21

CHAPTER 3: INSTALLATION

808719A1.CDR

469

Motor Control

Terminal Box

Motor

Hot

Compensation

RTD Return

A1

A2

A3

L1

L2

L3

Rcomp

RTD1

RL1

RL2

+

–

808720A2.CDR

469

Motor Control

Terminal Box

Motor

Hot

Compensation

RTD Return

A1

A2

A3

L1

L2

L3

Compensation

Hot

Hot

Compensation

RTD Return

A4

A5

A6

A7

A8

L4

L5

L6

L7

No connection

RTD1

+

–

RTD2

+

–

RTD3

+

–

J1

J2

FIGURE 3–24: 2-Wire RTD Lead Compensation

The compensation lead L2 is added to compensate for Hot (L1) and Return (L3), assuming
they are all of equal length and gauge. To compensate for leads RL1 and RL2, a resistor
equal to the resistance of RL1 or RL2 could be added to the compensation lead, though in
many cases this is unnecessary.

RTD Grounding

Grounding of one lead of the RTDs is done at either the 469 or at the motor. Grounding
should not be done in both places as it could cause a circulating current. Only RTD Return
leads may be grounded. When grounding at the 469, only one Return lead need be
grounded as they are hard-wired together internally. No error is introduced into the RTD
reading by grounding in this manner.

If the RTD Return leads are tied together and grounded at the motor, only one RTD Return
lead can be run back to the 469. See the figure below for a wiring example. Running more
than one RTD Return lead to the 469 causes significant errors as two or more parallel
paths for the return current have been created. Use of this wiring scheme causes errors in
readings equivalent to that in the Reduced RTD Lead Number application described earlier.

FIGURE 3–25: RTD Alternate Grounding

3.2.10 Output Relays

There are six (6) Form-C output relays (see Specifications on page 2–6 for details). Five of
the six relays are always non-failsafe; 6 SERVICE is always failsafe. As failsafe, the
6 SERVICE relay is normally energized and de-energizes when called upon to operate. It
also de-energizes when 469 control power is lost and will be in its operated state. All other

3–22 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

relays, being non-failsafe, will normally be de-energized and energize when called upon to
operate. When the 469 control power is lost, these relays are de-energized and in their
non-operated state. Shorting bars in the drawout case ensure that no trip or alarm occurs
when the 469 is drawn out. However, the 6 SERVICE output will indicate that the 469 has
been drawn out. Each output relay has an LED indicator on the front panel that turns on
when the associated relay is in the operated state.

Relay contacts must be considered unsafe to touch when the 469 is energized! If the
output relay contacts are required for low voltage accessible applications, it is the
customer's responsibility to ensure proper insulation levels.

• 1TRIP: The trip relay should be wired to take the motor off line when conditions

warrant. For a breaker application, the normally-open 1 TRIP contact should be wired
in series with the Breaker trip coil. For contactor applications, the normally-closed
1 TRIP contact should be wired in series with the contactor coil.

Supervision of a breaker trip coil requires that the supervision circuit be in parallel with
the 1 TRIP relay output contacts. With this connection made, the supervision input
circuits place an impedance across the contacts that draws a 2 mA current (for an
external supply voltage from 30 to 250 V DC) through the breaker trip coil. The
supervision circuits respond to a loss of this trickle current as a failure condition.
Circuit breakers equipped with standard control circuits have a breaker auxiliary
contact permitting the trip coil to be energized only when the breaker is closed. When
these contacts are open, as detected by the Starter Status Digital Input monitoring
breaker auxiliary contacts, trip coil supervision circuit is automatically disabled. This
logic allows the trip circuit to be monitored only when the breaker is closed.

• 2 AUXILIARY, 3 AUXILIARY: The auxiliary relays may be programmed for trip echo,

alarm echo, trip backup, alarm differentiation, control circuitry, and numerous other
functions. They should be wired as configuration warrants.

• 4ALARM: The alarm relay should connect to the appropriate annunciator or

monitoring device.

• 5BLOCKSTART: This relay should be wired in series with the start pushbutton in either

a breaker or contactor configuration to prevent motor starting. When a trip has not
been reset on a breaker, the block start relay prevents a start attempt that would
result in an immediate trip. Any lockout functions are also directed to the block start
relay.

• 6SERVICE: The service relay operates if any of the 469 diagnostics detect an internal

failure or on loss of control power. This output may be monitored with an annunciator,
PLC or DCS. If it is deemed that a motor is more important than a process, the service
relay normally-closed contact may also be wired in parallel with the trip relay on a
breaker application or the normally-open contact may be wired in series with the trip
relay on a contactor application. This will provide failsafe operation of the motor; that
is, the motor will be tripped off line in the event that the 469 is not protecting it. If
however, the process is critical, annunciation of such a failure will allow the operator
or the operation computer to either continue, or do a sequenced shutdown. See the
following figure for details.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–23

CHAPTER 3: INSTALLATION

3.2.11 Drawout Indicator

The Drawout Indicator is simply a jumper from terminals E12 to F12. When the 469 is
withdrawn from the case, terminals E12 and F12 are open. This may be useful for
differentiating between loss of control power as indicated by the 6 SERVICE relay and
withdrawal of the unit.

3.2.12 RS485 Communications Ports

Two independent two-wire RS485 ports are provided. Up to 32 469s can be daisy-chained
together on a communication channel without exceeding the driver capability. For larger
systems, additional serial channels must be added. Commercially available repeaters can
also be used to add more than 32 relays on a single channel. Suitable cable should have a
characteristic impedance of 120 Ω (e.g. Belden #9841) and total wire length should not
exceed 4000 ft. Commercially available repeaters will allow for transmission distances
greater than 4000 ft.

Voltage differences between remote ends of the communication link are not uncommon.
For this reason, surge protection devices are internally installed across all RS485 terminals.
Internally, an isolated power supply with an optocoupled data interface is used to prevent
noise coupling.

FIGURE 3–26: Alternate Wiring for Contactors

Note

To ensure that all devices in a daisy-chain are at the same potential, it is imperative
that the common terminals of each RS485 port are tied together and grounded only
once, at the master. Failure to do so may result in intermittent or failed
communications.

3–24 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

The source computer/PLC/SCADA system should have similar transient protection devices
installed, either internally or externally, to ensure maximum reliability. Ground the shield at
one point only, as shown in the figure below, to avoid ground loops.

Correct polarity is also essential. The 469s must be wired with all the ‘+’ terminals
connected together and all the ‘–’ terminals connected together. Each relay must be daisy­chained to the next one. Avoid star or stub connected configurations. The last device at
each end of the daisy chain should be terminated with a 120 Ω ¼-watt resistor in series
with a 1 nF capacitor across the ‘+’ and ‘–’ terminals. Observing these guidelines provides a
reliable communication system immune to system transients.

3.2.13 Dielectric Strength

It may be required to test a complete motor starter for dielectric strength (“flash” or “hipot”)
with the 469 installed. The 469 is rated for 1.9 kV AC for 1 second, or 1.6 kV AC for 1 minute
(per UL 508) isolation between relay contacts, CT inputs, VT inputs, trip coil supervision, and
the safety ground terminal G12. Some precautions are required to prevent damage to the
469 during these tests.

Filter networks and transient protection clamps are used between control power, trip coil
supervision, and the filter ground terminal G11. This is intended to filter out high voltage
transients, radio frequency interference (RFI), and electromagnetic interference (EMI). The
filter capacitors and transient suppressors may be damaged by continuous high voltage.
Disconnect the filter ground terminal G11 during testing of control power and trip coil
supervision. The CT inputs, VT inputs, and output relays do not require any special
precautions. Low voltage inputs (less than 30 V), RTDs, analog inputs, analog outputs,
digital inputs, and RS485 communication ports are not to be tested for dielectric strength
under any circumstance (see below).

FIGURE 3–27: RS485 Communications Wiring

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–25

CHAPTER 3: INSTALLATION

FIGURE 3–28: Testing for Dielectric Strength

3–26 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 3: INSTALLATION

3.2.14 2-Speed Motor Wiring

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 3–27

CHAPTER 3: INSTALLATION

3–28 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

Digital Energy

Multilin

469 Motor Management Relay

Chapter 4: Interfaces

Interfaces

4.1 Faceplate Interface

4.1.1 Description

4.1.2 Display

The front panel provides local operator interface with a liquid crystal display, LED status
indicators, control keys, and program port . The display and status indicators update alarm
and status information automatically. The control keys are used to select the appropriate
message for entering settings or displaying measured values. The RS232 program port is
also provided for connection with a computer running the EnerVista 469 Setup software.

The 40-character liquid crystal display allows visibility under varied lighting conditions.
While the keypad and display are not being used, the screen will display system
information by scrolling through a maximum of 20 user-selected default messages. These
default messages will only appear after a user programmed period of inactivity. Pressing
any key during default message scrolling will return the display to the last message shown
before the default messages appeared. Any trip, alarm, or start block is displayed
immediately, automatically overriding the default messages.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–1

4.1.3 LED Indicators

806977A1.CDR

There are three groups of LED indicators. They are 469 Status, Motor Status, and Output
Relays.

469 Status LED Indicators

CHAPTER 4: INTERFACES

FIGURE 4–1: 469 LED INDICATORS

• 469 IN SERVICE: This LED indicates that control power is applied, all monitored

inputs/outputs and internal systems are OK, the 469 has been programmed, and
the 469 is in protection mode, not simulation mode. This LED flashes when the 469
is in simulation or testing mode.

• SEETPOINT ACCESS: This LED indicates that the access jumper is installed and

passcode protection has been satisfied; settings may be altered and stored.

• COMPUTER RS232: This LED flashes when there is any activity on the

communication port. The LED remains on solid if incoming data is valid.

• COMPUTER RS485: Flashes when there is any activity on the communication port .

Remains on solid if incoming data is valid and intended for the slave address
programmed in the relay.

• AUXILIARY RS485: Flashes when there is any activity on the communication port.

Remains on solid if incoming data is valid and intended for the slave address
programmed in the relay.

• LOCKOUT: Indicates start attempts will be blocked either by a programmed

lockout time or a condition that is still present.

• RESET POSSIBLE: A trip or latched alarm may be reset. Press the

RESET key to

clear the trip or alarm.

• MESSAGE: Flashes when a trip, alarm, or start block occurs. Pressing the MESSAGE

keys scroll through diagnostic messages. This LED remains solid when settings and
actual value messages are being viewed. Pressing the

RESET key returns the

display to the default messages. Under normal conditions, the default messages
selected during settings programming are displayed. If any alarm or trip condition
is generated, a diagnostic message overrides the displayed message and this
indicator flashes. If there is more than one condition present,

MESSAGE T can be

used to scroll through the messages. Pressing any other key return to the normally
displayed messages. While viewing normally displayed messages, the Message
LED continues to flash if any diagnostic message is active. To return to the

4–2 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 4: INTERFACES

diagnostic messages from the normally displayed messages, press the MENU key
until the following message is displayed.

TARGET
MESSAGES [Z]

Now, press the
messages. Note that diagnostic messages for alarms disappear with the condition
while diagnostic messages for trips remain until cleared by a reset.

MESSAGE X key followed by the MESSAGE T key to scroll through the

Motor Status LED Indicators

• STOPPED: The motor is stopped based on zero phase current and starter status

auxiliary contact feedback.

• STARTING: Motor is starting.

• RUNNING: Motor is running normally below overload pickup level.

• OVERLOAD: Motor is running above overload pickup.

• UNBALANCE PICKUP: Level of current unbalance has exceeded the unbalance

alarm or trip level.

• GROUND PICKUP: Level of ground current has exceeded the ground fault alarm or

trip level.

• HOT RTD: One of the RTD measurements has exceeded its RTD alarm or trip level.

• LOSS OF LOAD: Average motor current has fallen below the undercurrent alarm or

trip level; or power consumption has fallen below the underpower alarm or trip
level.

Output Relay LED Indicators

4.1.4 RS232 Port

• 1 TRIP: The 1 TRIP relay has operated (energized).

• 2 AUXILIARY: The 2 AUXILIARY relay has operated (energized).

• 3 AUXILIARY: The 3 AUXILIARY relay has operated (energized).

• 4 ALARM: The 4 ALARM relay has operated (energized).

• 5 BLOCK START: The 5 BLOCK START relay has operated (energized).

• 6SERVICE: The 6 SERVICE relay has operated (de-energized, 6 SERVICE is failsafe,

normally energized).

This port is intended for connection to a portable PC. Settings files may be created at any
location and downloaded through this port with the EnerVista 469 Setup software. Local
interrogation of settings and actual values is also possible. New firmware may also be
downloaded to the 469 flash memory through this port. Upgrading of the relay firmware
does not require a hardware EPROM change.

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–3

4.1.5 Keypad

CHAPTER 4: INTERFACES

Description

The 469 display messages are organized into main menus, pages, and sub-pages. There
are three main menus labeled settings, Actual Values, and Target Messages.

Pressing the

MENU key followed by the MESSAGE T key scrolls through the three main

menu headers, which appear in sequence as follows:

SETTINGS
[Z]

ACTUAL
VALUES [Z]

TARGET
MESSAGES [Z]

Pressing the
the corresponding menu page. Use the

MESSAGE X key or the ENTER key from these main menu pages will display

MESSAGE T and MESSAGE S keys to scroll

through the page headers.

When the display shows

SETTINGS, pressing the MESSAGE X key or the ENTER key will

display the page headers of programmable parameters (referred to as settings in the
manual). When the display shows

ENTER key displays the page headers of measured parameters (referred to as actual

values in the manual). When the display shows

MESSAGE X key or the ENTER key displays the page headers of event messages or alarm

ACTUAL VALUES, pressing the MESSAGE X key or the

TARGET MESSAGES, pressing the

conditions.

Each page is broken down further into logical sub-pages. The

MESSAGE S keys are used to navigate through the sub-pages. A summary of the settings

MESSAGE T and

and actual values can be found in the chapters 5 and 6, respectively.

The

ENTER key is dual purpose. It is used to enter the sub-pages and to store altered

settings values into memory to complete the change. The

MESSAGE X key can also be

used to enter sub-pages but not to store altered settings.

The

ESCAPE key is also dual purpose. It is used to exit the sub-pages and to cancel a

settings change. The

MESSAGE W key can also be used to exit sub-pages and to cancel

settings changes.

The

VA L U E keys are used to scroll through the possible choices of an enumerated settings.

They also decrement and increment numerical settings. Numerical settings may also be
entered through the numeric keypad.

Pressing the

HELP key displays context-sensitive information about settings such as the

range of values and the method of changing the settings. Help messages will
automatically scroll through all messages currently appropriate.

The

RESET key resets any latched conditions that are not presently active. This includes

resetting latched output relays, latched Trip LEDs, breaker operation failure, and trip coil
failure.

4–4 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 4: INTERFACES

The MESSAGE T and MESSAGE S keys scroll through any active conditions in the relay.
Diagnostic messages are displayed indicating the state of protection and monitoring
elements that are picked up, operating, or latched. When the Message LED is on, there are
messages to be viewed with the

MENU key by selecting target messages as described

earlier.

Entering Alphanumeric Text

Text settings have data values that are fixed in length but user-defined in character. They
may be comprised of upper case letters, lower case letters, numerals, and a selection of
special characters. The editing and storing of a text value is accomplished with the use of
the decimal [.],

VA L U E , and ENTER keys.

Z Move to message

1 FUNCTION

S3 DIGITAL INPUTS ZV ASSIGNABLE INPUT 1 Z INPUT

, and scrolling with the VA L U E keys, select “General Sw.
A”.
The relay will display the following message:

INPUT 1 FUNCTION:
General Sw. A

Z Press the

MESSAGE T key to view the SWITCH NAME settings. The

name of this user-defined input will be changed in this example from the
generic “General Sw. A” to something more descriptive.

If an application is to be using the relay as a station monitor, it is more informative to
rename this input “Station Monitor”.

Z Press the decimal [.] to enter the text editing mode. The first character

will appear underlined as follows:

SWITCH NAME:
G

eneral Sw. A

Z Press the

VA L U E keys until the character “S” is displayed in the first

position.

Z Press the decimal [.] key to store the character and advance the cursor to

the next position.

Z Change the second character to a “t” in the same manner.

Z Continue entering characters in this way until all characters of the text

“Stn. Monitor” are entered. Note that a space is selected like a character.
If a character is entered incorrectly, press the decimal [.] key repeatedly
until the cursor returns to the position of the error. Re-enter the character
as required.

Z Once complete, press the

ENTER key to remove the solid cursor and

view the result.
Once a character is entered, by pressing the

ENTER key, it is

automatically saved in Flash Memory, as a new setting.

SWITCH NAME:
Stn. Monitor

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–5

CHAPTER 4: INTERFACES

The 469 does not have ‘+’ or ‘–’ keys. Negative numbers may be entered in one of two
manners.

4.1.6 Settings Entry

To store any settings, terminals C1 and C2 (access terminals) must be shorted (a keyswitch
may be used for security). There is also a settings passcode feature that restricts access to
settings. The passcode must be entered to allow the changing of settings values. A
passcode of “0” effectively turns off the passcode feature - in this case only the access
jumper is required for changing settings. If no key is pressed for 5 minutes, access to
settings values will be restricted until the passcode is entered again. To prevent settings
access before the 5 minutes expires, the unit may be turned off and back on, the access
jumper may be removed, or the
The passcode cannot be entered until terminals C1 and C2 (access terminals) are shorted.
When settings access is allowed, the settings Access LED indicator on the front of the 469
will be lit.

Settings changes take effect immediately, even when motor is running. However, changing
settings while the motor is running is not recommended as any mistake may cause a
nuisance trip.

Z Immediately pressing one of the

VA L U E keys causes the settings to

scroll through its range including any negative numbers.

Z After entering at least one digit of a numeric settings value, pressing the

VA L U E keys changes the sign of the value where applicable.

SETTINGS ACCESS settings may be changed to “Restricted”.

The following procedure may be used to access and alter settings. This specific example
refers to entering a valid passcode to allow access to settings if the passcode was “469”.

Z Press the

MENU key to access the header of each menu, which will be

displayed in the following sequence:

SETTINGS
[Z]

ACTUAL
VALUES [Z]

TARGET
MESSAGES [Z]

Z Press the

MENU key until the display shows the header of the Settings

menu.

Z Press the

MESSAGE X or ENTER key to display the header for the first

settings page.
The set point pages are numbered, have an 'S' prefix for easy
identification and have a name which gives a general idea of the settings
available in that page. Pressing the

MESSAGE T or MESSAGE S keys

will scroll through all the available settings page headers. Settings page
headers look as follows:


SETTINGS [

4–6 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

CHAPTER 4: INTERFACES

Z To enter a given Settings page, press the MESSAGE X or ENTER key.

Z Press the

MESSAGE T or MESSAGE S keys to scroll through sub-page

headers until the required message is reached.
The end of a page is indicated by the message
beginning of a page is indicated by

TOP OF PAGE.

END OF PAGE. The

Each page is broken further into subgroups.

Z Press

MESSAGE T or MESSAGE S to cycle through subgroups until the

desired subgroup appears on the screen.

Z Press the

MESSAGE X or ENTER key to enter a subgroup.


PASSCODE [

Each sub-group has one or more associated settings messages.

Z Press the

MESSAGE T or MESSAGE S keys to scroll through settings

messages until the desired message appears.

ENTER PASSCODE
FOR ACCESS:

The majority of settings are changed by pressing the
appears, and then pressing

ENTER. Numeric settings may also be entered through the

VA L U E keys until the desired value

numeric keys (including decimals). If the entered settings is out of range, the original
settings value reappears. If the entered settings is out of step, an adjusted value will be
stored (e.g. 101 for a settings that steps 95, 100, 105 is stored as 100). If a mistake is made
entering the new value, pressing

ESCAPE returns the settings to its original value. Text

editing is a special case described in detail in Entering Alphanumeric Text on page 4–5.
Each time a new settings is successfully stored, a message will flash on the display stating

NEW SETTINGS HAS BEEN STORED.

Z Press the 4, 6, 9 keys, then press

ENTER. The following flash message is

displayed:

NEW SETTINGS
HAS BEEN STORED

and the display returns to:

SETTINGS ACCESS:
PERMITTED

1. Press ESCAPE or MESSAGE W to exit the subgroup. Pressing ESCAPE or

MESSAGE

page.

W numerous times will always return the cursor to the top of the

4.1.7 Diagnostic Messages

Diagnostic messages are automatically displayed for any active conditions in the relay
such as trips, alarms, or asserted logic inputs. These messages provide a summary of the
present state of the relay. The Message LED flashes when there are diagnostic messages
available; press the

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–7

MENU key until the relay displays TARGET MESSAGES, then press the

CHAPTER 4: INTERFACES

MESSAGE

additional information and a complete list of diagnostic messages, refer to Diagnostic
Messages on page 6–37.

4.1.8 Self-Test Warnings

The 469 relay performs self test diagnostics at initialization (after power up) and
continuously as a background task to ensure the hardware and software is functioning
correctly. Self-test warnings indicate either a minor or major problem. Minor problems are
problems that does not compromise motor protection. Major problems are very serious
problems that compromise all aspects of relay operation. Upon detection of either a minor
or a major problem the relay will:

• De-energize the self-test warning relay

• Light the self-test warning LED

• Flash a diagnostic message periodically on the display screen

Self-Test Warning 1
Replace Immediately

X key, followed by the MESSAGE T key, to scroll through the messages. For

Table 4–1: Self-Test Warnings

Message Severity Failure description

Caused by detection of a corrupted location in the

Major

program memory as determined by a CRC error
check. Any function of the relay is susceptible to
malfunction from this failure.

Self-Test Warning 2
Replace Immediately

Self-Test Warning 3
Replace Immediately

Self-Test Warning 5
Replace Immediately

Self-Test Warning 6
Replace Immediately

Self-Test Warning 7
Replace Immediately

Self-Test Warning 8
Replace Immediately

Clock Not Set
Program Date/Time

Unit Temp. Exceeded
Service/CheckAmbient

Major

converter A/D1. The integrity of system input
measurements is affected by this failure.

Caused by a failure of the analog to digital

Caused by a failure of the analog to digital

Major

converter A/D2. The integrity of system input
measurements is affected by this failure.

Caused by out of range reading of self-test

Major

RTD 13. The integrity of system input
measurements is affected by this failure.

Caused by out of range reading of self-test

Major

RTD 14. The integrity of system input
measurements is affected by this failure.

Caused by out of range reading of self-test

Major

RTD 15. The integrity of system input
measurements is affected by this failure.

Caused by out of range reading of self-test

Major

RTD 16. The integrity of system input
measurements is affected by this failure.

Minor Occurs if the clock has not been set.

Caused by the detection of unacceptably low (less

Minor

than -40°C) or high (greater than +85°C)
temperatures detected inside the unit.

Unit Not Calibrated
Replace Immediately

4–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL

Minor

This warning occurs when the relay has not been
factory calibrated.

CHAPTER 4: INTERFACES

Table 4–1: Self-Test Warnings

Message Severity Failure description

Relay Not Configured
Consult User Manual

Service Required
Schedule Maintenance

4.1.9 Flash Messages

Flash messages are warning, error, or general information messages displayed in response
to certain key presses. The length of time these messages remain displayed can be
programmed in
factory default flash message time is 4 seconds. For additional information and a complete
list of flash messages, refer to Flash Messages on page 6–38.

Minor

This warning occurs when the 469 CT Primary or
FLA is set to “None”.

Caused by a failure of the real time clock circuit.

Minor

The ability of the relay to maintain the current
date and time is lost.

S1 RELAY SETUP ZV PREFERENCES ZV DEFAULT MESSAGE CYCLE TIME. The

469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL 4–9

4.2 EnerVista 469 Setup Software Interface

4.2.1 Overview

The front panel provides local operator interface with a liquid crystal display. The EnerVista
469 Setup software provides a graphical user interface (GUI) as one of two human
interfaces to a 469 device. The alternate human interface is implemented via the device's
faceplate keypad and display (see the first section in this chapter).

The EnerVista 469 Setup software provides a single facility to configure, monitor, maintain,
and trouble-shoot the operation of relay functions, connected over serial communication
networks. It can be used while disconnected (i.e. off-line) or connected (i.e. on-line) to a 469
device. In off-line mode, Settings files can be created for eventual downloading to the
device. In on-line mode, you can communicate with the device in real-time.

CHAPTER 4: INTERFACES

This no-charge software, provided with every 469 relay, can be run from any computer
supporting Microsoft Windows
basic EnerVista 469 Setup software interface features. The EnerVista 469 Setup help file
provides details for getting started and using the software interface.

With the EnerVista 469 Setup running on your PC, it is possible to

• Program and modify settings

• Load/save Settings files from/to disk

• Read actual values and monitor status

• Perform waveform capture and log data

• Plot, print, and view trending graphs of selected actual values

• Download and playback waveforms

• Get help on any topic

®

95 or higher. This chapter provides a summary of the

4–10 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL