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Title P
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GE Industrial Systems
469
Motor Management Relay
INSTRUCTION MANUAL
Software Revision: 4.0x
Manual P/N: 1601-0122-A3
Manual Order Code: GEK-106474B
Copyright © 2005 GE Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222 Fax: (905) 201-2098
Internet: http://www.GEmultilin.com
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ISO9001:2000
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GE Multilin's Quality Management
System is registered to
ISO9001:2000
QMI # 005094
UL # A3775
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Tabl
e of Contents
Table of Contents
GETTING STARTED Important Procedures
Cautions and Warnings...................................................................................................................... 1-1
Inspection Checklist............................................................................................................................ 1-1
Manual Organization ..........................................................................................................................1-2
Using the Relay
Menu Navigation ................................................................................................................................1-2
Panel Keying Example........................................................................................................................ 1-5
Changing Setpoints
Introduction ......................................................................................................................................... 1-6
The HELP Key......................................................................................................................................1-7
Numerical Setpoints........................................................................................................................... 1-7
Enumeration Setpoints....................................................................................................................... 1-7
Output Relay Setpoints ....................................................................................................................1-11
Text Setpoints ................................................................................................................................... 1-11
Application Example
Description ........................................................................................................................................ 1-12
Instrument Transformer Data .......................................................................................................... 1-19
Motor Protection ............................................................................................................................... 1-19
S2 System Setpoints ........................................................................................................................ 1-23
S3 Digital Inputs Setpoints............................................................................................................... 1-24
S5 Thermal Model ............................................................................................................................ 1-25
S6 Current Elements.........................................................................................................................1-25
S7 Motor Starting ............................................................................................................................. 1-26
S8 RTD Temperature ........................................................................................................................ 1-27
Other Settings ................................................................................................................................... 1-27
Installation
Testing ............................................................................................................................................... 1-28
Motor Management Relay
469
INTRODUCTION Overview
Description .......................................................................................................................................... 2-1
Ordering Information.......................................................................................................................... 2-3
Order Codes ........................................................................................................................................ 2-4
Example Order Codes.........................................................................................................................2-4
Accessories..........................................................................................................................................2-4
Specifications
Inputs ................................................................................................................................................... 2-5
Outputs ................................................................................................................................................ 2-6
Protection ............................................................................................................................................ 2-6
Digital Inputs ....................................................................................................................................... 2-7
Monitoring........................................................................................................................................... 2-8
Power Supply...................................................................................................................................... 2-8
CPU ...................................................................................................................................................... 2-9
Testing ................................................................................................................................................. 2-9
Certification ....................................................................................................................................... 2-10
Physical.............................................................................................................................................. 2-10
Environmental...................................................................................................................................2-10
INSTALLATION Mechanical Installation
Description .......................................................................................................................................... 3-1
Product Identification .........................................................................................................................3-2
Installation ........................................................................................................................................... 3-3
Unit Withdrawal and Insertion........................................................................................................... 3-4
Ethernet Connection ........................................................................................................................... 3-5
DeviceNet Connection........................................................................................................................ 3-6
Terminal Locations ............................................................................................................................. 3-7
Terminal List........................................................................................................................................ 3-8
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Motor Management Relay
Electrical Installation
Typical Wiring......................................................................................................................................3-9
Description .........................................................................................................................................3-10
Control Power ....................................................................................................................................3-10
Current Inputs ....................................................................................................................................3-10
Voltage Inputs....................................................................................................................................3-15
Digital Inputs......................................................................................................................................3-16
Analog Inputs.....................................................................................................................................3-16
Analog Outputs..................................................................................................................................3-17
RTD Sensor Connections..................................................................................................................3-17
Output Relays ....................................................................................................................................3-20
Drawout Indicator..............................................................................................................................3-21
RS485 Communications Ports..........................................................................................................3-21
Dielectric Strength.............................................................................................................................3-22
2-Speed Motor Wiring.......................................................................................................................3-24
INTERFACES Faceplate Interface
Description ...........................................................................................................................................4-1
Display..................................................................................................................................................4-1
LED Indicators......................................................................................................................................4-1
RS232 Port............................................................................................................................................4-3
Keypad..................................................................................................................................................4-3
Setpoint Entry ......................................................................................................................................4-4
Diagnostic Messages ..........................................................................................................................4-6
Self-Test Warnings..............................................................................................................................4-6
Flash Messages ...................................................................................................................................4-7
EnerVista 469 Setup Software Interface
Overview ..............................................................................................................................................4-7
Hardware..............................................................................................................................................4-7
Installing the EnerVista 469 Setup Software .....................................................................................4-9
Connecting EnerVista 469 Setup to the Relay
Configuring Serial Communications................................................................................................4-11
Using the Quick Connect Feature.....................................................................................................4-12
Configuring Ethernet Communications...........................................................................................4-13
Connecting to the Relay....................................................................................................................4-15
Working with Setpoints and Setpoint Files
Engaging a Device.............................................................................................................................4-16
Entering Setpoints.............................................................................................................................4-16
File Support........................................................................................................................................4-17
Using Setpoints Files.........................................................................................................................4-17
Upgrading Relay Firmware
Description .........................................................................................................................................4-22
Saving Setpoints To A File ...............................................................................................................4-22
Loading New Firmware.....................................................................................................................4-22
Advanced EnerVista 469 Setup Features
Triggered Events ...............................................................................................................................4-24
Waveform Capture (Trace Memory)................................................................................................4-24
Phasors...............................................................................................................................................4-26
Trending (Data Logger).....................................................................................................................4-27
Event Recorder ..................................................................................................................................4-29
Modbus User Map.............................................................................................................................4-30
Viewing Actual Values ......................................................................................................................4-31
Using EnerVista Viewpoint with the 469
Plug and Play Example .....................................................................................................................4-33
Table of Contents469
SETPOINTS Overview
Setpoint Message Map .......................................................................................................................5-1
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Trips, Alarms, and Blocks................................................................................................................... 5-5
Relay Assignment Practices............................................................................................................... 5-6
S1 469 Setup
Passcode.............................................................................................................................................. 5-7
Preferences.......................................................................................................................................... 5-7
Communications................................................................................................................................. 5-9
Real Time Clock.................................................................................................................................5-11
Default Messages.............................................................................................................................. 5-11
Message Scratchpad ........................................................................................................................ 5-12
Clear Data .......................................................................................................................................... 5-13
Installation ......................................................................................................................................... 5-13
S2 System Setup
Current Sensing ................................................................................................................................5-14
Voltage Sensing................................................................................................................................ 5-15
Power System ................................................................................................................................... 5-16
Communications Control ................................................................................................................. 5-16
Reduced Voltage............................................................................................................................... 5-17
S3 Digital Inputs
Description ........................................................................................................................................ 5-19
Starter Status .................................................................................................................................... 5-21
Assignable Inputs 1(4)...................................................................................................................... 5-21
S4 Output Relays
Description ........................................................................................................................................ 5-28
Relay Reset Mode ............................................................................................................................. 5-28
Force Output Relay ........................................................................................................................... 5-29
S5 Thermal Model
Motor Thermal Limits....................................................................................................................... 5-29
Thermal Model.................................................................................................................................. 5-31
Overload Curve Setup...................................................................................................................... 5-32
S6 Current Elements
Short Circuit Trip...............................................................................................................................5-49
Overload Alarm................................................................................................................................. 5-50
Mechanical Jam................................................................................................................................ 5-50
Undercurrent ..................................................................................................................................... 5-51
Current Unbalance............................................................................................................................ 5-52
Ground Fault ..................................................................................................................................... 5-53
Phase Differential.............................................................................................................................. 5-54
S7 Motor Starting
Acceleration Timer............................................................................................................................ 5-55
Start Inhibit........................................................................................................................................ 5-55
Jogging Block.................................................................................................................................... 5-56
Restart Block...................................................................................................................................... 5-57
S8 RTD Temperature
RTD Types ......................................................................................................................................... 5-57
RTDs 1 to 6 ........................................................................................................................................ 5-59
RTDs 7 to 10 ...................................................................................................................................... 5-60
RTD 11................................................................................................................................................5-61
RTD 12................................................................................................................................................5-62
Open RTD Sensor ............................................................................................................................. 5-63
RTD Short/Low Temp....................................................................................................................... 5-63
S9 Voltage Elements
Undervoltage..................................................................................................................................... 5-64
Overvoltage.......................................................................................................................................5-66
Phase Reversal.................................................................................................................................. 5-66
Frequency.......................................................................................................................................... 5-67
S10 Power Elements
Power Measurement Conventions.................................................................................................. 5-68
Power Factor ..................................................................................................................................... 5-69
Reactive Power..................................................................................................................................5-70
Underpower ...................................................................................................................................... 5-71
Reverse Power .................................................................................................................................. 5-72
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Torque Setup .....................................................................................................................................5-72
Overtorque.........................................................................................................................................5-73
S11 Monitoring
Trip Counter.......................................................................................................................................5-73
Starter Failure ....................................................................................................................................5-74
Demand ..............................................................................................................................................5-75
Pulse Output ......................................................................................................................................5-76
S12 Analog Inputs/Outputs
Analog Outputs 1 to 4 .......................................................................................................................5-77
Analog Inputs 1 to 4 ..........................................................................................................................5-79
Analog Input Diff 1-2 .........................................................................................................................5-81
Analog Input Diff 3-4 .........................................................................................................................5-82
S13 469 Testing
Simulation Mode...............................................................................................................................5-83
Pre-Fault Setup ..................................................................................................................................5-84
Fault Setup .........................................................................................................................................5-85
Test Output Relays ............................................................................................................................5-86
Test Analog Outputs .........................................................................................................................5-86
Comm Port Monitor ..........................................................................................................................5-87
GE Multilin Use Only.........................................................................................................................5-87
S14 Two-Speed Motor
Description .........................................................................................................................................5-88
Speed2 Undercurrent........................................................................................................................5-92
Speed2 Acceleration .........................................................................................................................5-92
ACTUAL VALUES Overview
Actual Values Map...............................................................................................................................6-1
Description ...........................................................................................................................................6-3
A1 Status
Network Status ....................................................................................................................................6-3
Motor Status ........................................................................................................................................6-4
Last Trip Data.......................................................................................................................................6-4
Alarm Status ........................................................................................................................................6-6
Start Blocks ..........................................................................................................................................6-8
Digital Inputs........................................................................................................................................6-8
Real Time Clock ...................................................................................................................................6-9
A2 Metering Data
Current Metering .................................................................................................................................6-9
Temperature ......................................................................................................................................6-10
Voltage Metering...............................................................................................................................6-10
Speed..................................................................................................................................................6-11
Power Metering .................................................................................................................................6-11
Demand Metering..............................................................................................................................6-12
Analog Inputs.....................................................................................................................................6-12
Phasors...............................................................................................................................................6-13
A3 Learned Data
Motor Starting ...................................................................................................................................6-22
Average Motor Load .........................................................................................................................6-22
RTD Maximums.................................................................................................................................6-23
Analog Input Min/Max.......................................................................................................................6-24
A4 Maintenance
Trip Counters .....................................................................................................................................6-24
General Counters...............................................................................................................................6-26
Timers.................................................................................................................................................6-26
A5 Event Recorder
Event 01 to Event 256........................................................................................................................6-27
A6 Product Info
469 Model Information......................................................................................................................6-29
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Calibration Information ....................................................................................................................6-29
Diagnostics
Diagnostic Messages........................................................................................................................ 6-29
Flash Messages................................................................................................................................. 6-31
TESTING Overview
Test Setup............................................................................................................................................7-1
Hardware Functional Testing
Phase Current Accuracy Test............................................................................................................. 7-3
Voltage Input Accuracy Test.............................................................................................................. 7-3
Ground and Differential Accuracy Test.............................................................................................7-3
GE Multilin 50:0.025 Ground Accuracy Test ..................................................................................... 7-4
RTD Accuracy Test.............................................................................................................................. 7-4
Digital Inputs and Trip Coil Supervision........................................................................................... 7-6
Analog Inputs and Outputs................................................................................................................ 7-6
Output Relays...................................................................................................................................... 7-7
Additional Functional Testing
Overload Curve Test...........................................................................................................................7-8
Power Measurement Test .................................................................................................................. 7-8
Unbalance Test ................................................................................................................................... 7-9
Voltage Phase Reversal Test............................................................................................................ 7-10
Short Circuit Test .............................................................................................................................. 7-10
Motor Management Relay
469
APPENDIX Two-Phase CT Configuration
Description .......................................................................................................................................... 8-1
Cool Time Constants
Selection of Cool Time Constants ..................................................................................................... 8-2
Example...............................................................................................................................................8-3
Current Transformers
Ground Fault CTs for 50:0.025 A CT.................................................................................................. 8-4
Ground Fault CTs for 5 A Secondary CT........................................................................................... 8-5
Phase CTs ............................................................................................................................................ 8-6
EU Declaration of Conformity
Change Notes
Revision History.................................................................................................................................. 8-8
Changes to the 469 Manual ............................................................................................................... 8-8
GE Multilin Warranty
Warranty Statement ........................................................................................................................... 8-8
INDEX
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Important Procedures
Motor Management Relay
1 Getting Started
Important Procedures
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
CAUTIONWARNING
manual are reviewed to help prevent personal injury,
equipment damage, and/or downtime.
469
Getting Started
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
If there is any noticeable physical damage, or any of the contents listed are
missing, please contact GE Multilin immediately.
NOTE
GE Multilin contact information and call center for product support:
GE Multilin
215 Anderson Avenue
Markham, Ontario
Canada L6E 1B3
Telephone: (905) 294-6222, toll-free 1-800-547-8629 (North America only)
Fax: (905) 201-2098
E-mail: multilin.tech@ge.com
Home Page: http://www.GEmultilin.com
.
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Page 10
Getting Started
Using the Relay469
Motor Management Relay
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 3–9 should be observed for reliable
operation. Detailed information regarding accuracy, output relay contact ratings,
and so forth are detailed in Specifications on page 2–5. 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.
Setpoints 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
setpoint with regards to its previous menus and sub-menus. In the example above,
the
AVERAGE MOTOR LOAD LEARNED actual value is shown to be an item in the AVE RAG E
MOTOR LOAD sub-menu, which itself is an item in the A3 LEARNED DATA menu, which is
an item of
Sub-menu levels are entered by pressing the MESSAGE X or ENTER key. When inside a
submenu, the W MESSAGE or ESCAPE key returns to the previous sub-menu. The
MESSAGE T and MESSAGE S keys are used to scroll through the settings in a sub-
menu. The display indicates which keys can be used at any given point.
ACTUAL VALUES.
Using the Relay
Menu Navigation The relay has three types of display messages: actual value, setpoint, and target
messages. A summary of the menu structure for setpoints and actual values can be
found at the beginning of chapters 5 and 6, respectively.
Setpoints 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, unbal-
ance, 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.
1–2
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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.
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 timers 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 prod-
uct information, and calibration dates.
8. Oscillography downloading tool.
Alarm, trip conditions, diagnostics, and system flash messages are grouped under
Target Messages.
Press the MENU key to access the header of each menu, which will be displayed in
the following sequence:
Getting Started
SETPOINTS [Z]
ACTUAL VALUES [Z]
TARGET MESSAGES [Z]
To access setpoints, press the MENU key until the display shows the header of the
setpoints menu, and then press the MESSAGE X or ENTER key to display the header for
the first setpoints page. The setpoint 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 setpoint page headers. Setpoint page headers look as follows:
SETPOINTS [Z]
S1 RELAY SETUP
To enter a given setpoints page, press the MESSAGE X or ENTER key. 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
The beginning of a page is indicated by the message
T o access actu al values, press the MENU key until the displ ay shows the header of the
actual values menu, then 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
TOP OF PAGE.
END OF PAGE.
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Getting Started
Motor Management Relay
Using the Relay469
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:
ACTUAL VALUES [Z]
A1 STATUS
To enter a given actual values page, press the MESSAGE X or ENTER key. 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
The beginning of a page is indicated by the message
Similarly, to access additional sub-pages, press the MESSAGE X or ENTER key to enter
the first sub-page, and then the 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 setpoints and actual values.
The following procedure illustrates the key sequence to access the Current Demand
actual values.
1. Press the MENU key until you reach the actual values main menu.
2. Press MESSAGE X or ENTER key to enter the first actual values page, and then the
MESSAGE T or MESSAGE S key to scroll through pages, until the
page appears.
ACTUAL VALUES [Z]
A2 METERING DATA
TOP OF PAGE.
END OF PAGE.
A2 METERING DATA
3. 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 subpage heading will return the display to the heading of the corresponding
setpoint or actual value page, and pressing it again, will return the display to
the main menu header.
4. Press the MESSAGE T key until the
DEMAND [Z]
METERING
At this point, pressing MESSAGE X or ENTER key will display the messages under
this sub-page. If instead you press the MESSAGE S key, it will return to the
previous sub-page heading. In this case,
POWER [Z]
METERING
5. When the symbols
sub-pages are available and can be accessed by pressing the MESSAGE X or ENTER
key. Pressing MESSAGE X or ENTER while at the Demand Metering sub-page heading displays the following:
CURRENT
DEMAND: 0 Amps
and [Z] appear on the top line, it indicates that additional
DEMAND METERING sub-page heading appears.
1–4
Pressing W MESSAGE key returns to the Demand Metering sub-page heading.
6. Press the MESSAGE T key to display the next actual value of this sub-page.
Actual values and setpoints messages always have a col on separating the name
of the value and the actual value or setpoint. This particular message displays
the current demand as measured by the relay.
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The menu path to this value is shown as A2 METERING DATA ZV DEMAND METERING
Z CURRENT DEMAND. Setpoints and actual v alues messages ar e referr ed to in thi s
manner throughout the manual.
For example, the
TIME path representation describes the following key-press sequence: press the
A3 LEARNED DATA Z MOTOR STARTING Z LEARNED ACCELERATION
MENU key until the actual value header appear on the display , MESSAGE X or ENTER
key, and then MESSAGE T key until the
then press the MESSAGE X or ENTER key to display
press the MESSAGE X or ENTER key to reach the
A3 LEARNED DATA message is displayed,
MOTOR STARTING message, then
LEARNED ACCELERATION TIME
message and the corresponding actual value.
7. Press the MESSAGE T key to display the next actual value message as shown
below:
LEARNED STARTING
CURRENT: 0 A
8. Pressing the MESSAGE T or MESSAGE S keys scrolls the display up and down
through all the actual value displays in this corresponding sub-page.
9. Pressing the W MESSAGE key reverses the process described above and returns
the display to the previous level.
MOTOR [Z]
STARTING
Getting Started
10. Press the W MESSAGE key twice to return to the
ACTUAL VALUES [Z]
A3 LEARNED DATA
A3 LEARNED DATA page header.
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
A3 LEARNED DATA ZV MOTOR STARTING ZV LEARNED STARTING CURRENT.
Press the menu key until the relay displays the actual values page.
ACTUAL VALUES [Z]
Press the MESSAGE or ENTER key
ACTUAL VALUES [Z]
A1 STATUS
Press the MESSAGE key
ACTUAL VALUES [Z]
A2 METERING DATA
Press the MESSAGE key
ACTUAL VALUES [Z]
A3 LEARNED DATA
MESSAGE
MOTOR STARTING [Z]
MESSAGE
MESSAGE
LEARNED ACCELERATION
TIME: 0.0 s
LEARNED STARTING
CURRENT: 0 A
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Page 14
Getting Started
Motor Management Relay
Introduction There are several classes of setpoints, each distinguished by the way their values
NOTE
Changing Setpoints469
Changing Setpoints
are displayed and edited.
The relay's menu is arranged in a tree structure. Each setting in the menu is
referred to as a setpoint, and each setpoint 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 MESSAGE keys allows the user to
move between 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.
IMPORTANT NOTE: 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 setpoint classes.
Hardware and passcode security features are designed to provide protection against
unauthorized setpoint changes. Since we will be programming new setpoints using
the front panel keys, a hardware jumper must be installed across the setpoint
access terminals (C1 and C2) on the back of the relay case. Attempts to enter a new
setpoint without this electrical connection will result in an error message.
The jumper does not restrict setpoint access via serial communications. The relay
has a programmable passcode setpoint, which may be used to disallow setpoint
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 setpoint modification restrictions. Therefore,
only the setpoint access jumper can be used to restrict setpoi nt a cce s s via the fr ont
panel and there are no restrictions via the communications ports.
When the passcode is programmed to any other value, setpoint 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). Note that enabling setpoint 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 setpoint access once all modifications are
complete. For the communications ports, writing an invalid passcode into the
register previously used to enable setpoint access disables access. In addition,
setpoint 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 setpoint access. For example,
when an attempt is made to modify a setpoint but access is restricted, the software
will prompt the user to enter the passcode and send it to the relay before the
setpoint 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.
1–6
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GE Multilin
Page 15
Changing Setpoints
Motor Management Relay
The HELP Key Pressing the HELP key displays context-sensitive information about setpoints such as
the range of values and the method of changing the setpoint. Help messages will
automatically scroll through all messages currently appropriate.
Numerical Setpoints Each numerical setpoint has its own minimum, maximum, and step value. These
parameters define the acceptable setpoint value range. Two methods of editing and
storing a numerical setpoint value are av ailable.
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
ESCAPE before the ENTER key returns the original value to the display.
The second method uses the VA L U E S key to increment the displayed value by the
step value, up to a maximum allowed value. Likewise, the VA L U E T key decrements
the displayed value by the step value, down to a minimum value. For example:
1. Select the
setpoint message.
2. Press the 1, 3, 8, 0, and 0 keys. The display message will change as shown.
S2 SYSTEM SETUP ZV VOLTAGE SENSING Z MOTOR NAMEPLATE VOLTAGE
MOTOR NAMEPLATE
VOLTAGE: 4000 V
MOTOR NAMEPLATE
VOLTAGE: 13800 V
469
Getting Started
3. Until the ENTER key is pressed, editing changes are not registered by the relay.
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 SETPOINT HAS
BEEN STORED
Enumeration Setpoints 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
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Motor Management Relay
SETPOINTS [Z]
Changing Setpoints469
To set the phase CT primary rating, modify the S2 SYSTEM SETUP Z CURRENT SENSING
Z PHASE CT PRIMARY setpoint as shown below.
Press the MENU key until the relay displays the setpoints menu header.
Getting Started
MESSAGE X or ENTER
Press
SETPOINTS [Z]
S1 469 SETUP
Press
MESSAGE T
SETPOINTS [Z]
S2 SYSTEM SETUP
To set the phase Motor Full Load Amps FLA, modify the
SENSING ZV MOTOR FULL LOAD AMPS FLA setpoint as shown below.
Press the MENU key until the relay displays the setpoints menu header.
SETPOINTS [Z]
Press
MESSAGE X or ENTER
SETPOINTS [Z]
S1 469 SETUP
Press
MESSAGE T
SETPOINTS [Z]
S2 SYSTEM SETUP
Press
MESSAGE X
ENTER
or
Press
MESSAGE X
ENTER
or
CURRENT [Z]
SENSING
Press the
displayed, or enter the value directly
Press the ENTER key to store the
CURRENT [Z]
SENSING
VA L U E keys until 600 A is
via the numeric keypad.
Press
MESSAGE X
ENTER
or
setpoint.
Press
MESSAGE X
ENTER
or
Press
MESSAGE T
PHASE CT PRIMARY:
OFF
PHASE CT PRIMARY:
600 A
NEW SETPOINT HAS
BEEN STORED
S2 SYSTEM SETUP Z CURRENT
PHASE CT PRIMARY:
600 A
MOTOR FULL LOAD AMPS
FLA: OFF
1–8
Press the
displayed, or enter the value directly
Press the
VA L U E keys until 318 A is
via the numeric keypad.
ENTER key to store the
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setpoint.
MOTOR FULL LOAD AMPS
FLA: 318 A
NEW SETPOINT HAS
BEEN STORED
GE Multilin
Page 17
Changing Setpoints
Motor Management Relay
469
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
setpoints as shown below.
Press the MENU key until the relay displays the setpoints menu header.
SETPOINTS [Z]
MESSAGE X or ENTER
Press
SETPOINTS [Z]
S1 469 SETUP
Press
MESSAGE T
SETPOINTS [Z]
S2 SYSTEM SETUP
Press
MESSAGE X
ENTER
or
CURRENT [Z]
SENSING
Press
MESSAGE X
ENTER
or
Press
MESSAGE T
Press
MESSAGE T
Press the
“5 A Secondary” is displayed.
Press the ENTER key to store the
VA L U E keys u n til
setpoint.
Press
MESSAGE T
Press the
displayed, or enter the value directly
Press the ENTER key to store the
VA L U E keys until 50 A is
via the numeric keypad.
setpoint.
Getting Started
PHASE CT PRIMARY:
600 A
MOTOR FULL LOAD AMPS
FLA: 318 A
GROUND CT:
Multilin CT 50/0.025
GROUND CT:
5 A Secondary
NEW SETPOINT HAS
BEEN STORED
GROUND CT PRIMARY:
100 A
GROUND CT PRIMARY:
50 A
NEW SETPOINT HAS
BEEN STORED
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Getting Started
Motor Management Relay
SETPOINTS [Z]
MESSAGE X or ENTER
Press
SETPOINTS [Z]
S1 469 SETUP
Press
MESSAGE T
SETPOINTS [Z]
S2 SYSTEM SETUP
Changing Setpoints469
To set the VT connection type and ratings, modify the S2 SYSTEM SETUP ZV VOLTAGE
SENSING ZV VT CONNECTION TYPE and the S2 SYSTEM SETUP ZV VOLTAGE SENSING ZV
VOLTAGE TRANSFORMER RATIO, and S2 SYSTEM SETUP ZV VOLTAGE SENSING ZV MOTOR
NAMEPLATE VOLTAGE setpoints as shown below.
Press the MENU key until the relay displays the setpoints menu header.
Press
MESSAGE X
ENTER
or
Press
MESSAGE T
CURRENT [Z]
SENSING
VOLTAGE [Z]
SENSING
Press the
“Open Delta” is displayed.
Press
MESSAGE X
ENTER
or
VA L U E keys u n til
VT CONNECTION TYPE:
None
VT CONNECTION TYPE:
Open Delta
Press the ENTER key to store the
setpoint.
Press
MESSAGE T
Press
MESSAGE T
Press the
displayed, or enter the value directly
VA L U E keys until 115.00 : 1 is
via the numeric keypad.
Press the ENTER key to store the
setpoint.
Press
MESSAGE T
Press the
displayed, or enter the value directly
VA L U E keys until 13800 V is
via the numeric keypad.
Press the ENTER key to store the
setpoint.
NEW SETPOINT HAS
BEEN STORED
ENABLE SINGLE VT:
OPERATION: OFF
VOLTAGE TRANSFORMER
RATIO: 35.00 : 1
VOLTAGE TRANSFORMER
RATIO: 115.00 : 1
NEW SETPOINT HAS
BEEN STORED
MOTOR NAMEPLATE
VOLTAGE: 4000 V
MOTOR NAMEPLATE
VOLTAGE: 13800 V
NEW SETPOINT HAS
BEEN STORED
If an entered setpoint value is out of range, the relay displays the following
message:
OUT-OF-RANGE! ENTER:
100-36000 by 1
“100-36000” indicates the range and “1” indicates the step
value
1–10
where 100 is the minimum setpoint 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.
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Page 19
Changing Setpoints
Motor Management Relay
469
Output Relay Setpoints 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 setpoint has them selected.
1. Select the
message.
2. If an application requires the short circuit protection element to operate the
Auxiliary Output 3 relay, select this output relay by pressing the value key until
the desired combination appear in the display.
3. Press the ENTER key to store this change into memory. As before, confirmation of
this action will momentarily flash on the display.
S5 CURRENT ELEM. Z SHORT CIRCUIT TRIP ZV ASSIGN TRIP RELAYS setpoint
ASSIGN TRIP RELAYS:
Trip
ASSIGN TRIP RELAYS:
Trip & Auxiliary3
NEW SETPOINT HAS
BEEN STORED
Text Setpoints Text setpoints have data values, which are fixed in length, but user defined in
character. They may be comprised of uppercase letters, lowercase letters, numer als,
and a selection of special characters. The editing and storing of a text value is
accomplished with the use of the decimal [.], VAL U E , and ENTER keys.
For example:
1. Move to message
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
S3 DIGITAL INPUTS ZV ASSIGNABLE INPUT 1 Z INPUT 1 FUNCTION,
Getting Started
2. Press the MESSAGE T key to view the next setpoint,
this user defined input will be changed in this example from the generic
“General Sw. A” to something more descriptive.
3. If an application is to be using the relay as a station monitor, it is more
informative to rename this input “Station Monitor”. Press the decimal [.] key to
enter the text editing mode. The first character will appear underlined as
follows:.
SWITCH NAME:
G
eneral Sw. A
4. Press the VA L U E keys until the character “S” is displayed in the first position. Now
press the decimal [.] key to store the character and advance the cursor to the
next position. Change the second character to a “t” in the same manner.
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.
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 setpoint.
SWITCH NAME:
Stn. Monitor
SWITCH NAME. The name of
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Getting Started
Application Example469
Motor Management Relay
Application Example
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 setpoints 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 setpoints 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)
1000.000
100.000
Time (sec.)
10.000
1.000
0 500 1,000 1,500 2,000 2,500
Current (Amps)
FIGURE 1–1: Typical Motor Curves
– 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”:
806553A1.CDR
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Application Example
Motor Management Relay
469
– 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.
To begin, simply power on the unit and follow the instructions in this tutorial.
Assume the following system characteristics and that the 469 setpoints are
unaltered from their factory default values.
Refer to the following figures for schematics related to this application example.
Getting Started
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Getting Started
Application Example469
Motor Management Relay
806554A1.CDR
GE Multilin
1–14
+
Comp-Shld
1
2
STATOR
-
+
Comp
Shld
5
7
3
PHASE A - 1
8
6
4
STATOR
PHASE A - 2
+
-
-
+
Comp
Shld
9
11
10
12
STATOR
PHASE B - 1
+
-
Shld
Comp
13
14
15
STATOR
PHASE B - 2
Shld
Comp
21
19
17
16
18
20
STATOR
STATOR
PHASE C - 1
FIGURE 1–2: Typical Relay Connection Diagram
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Comp
22
PHASE C - 2
-++
Shld
23
24
-
-++
Shld
Comp
Comp
25
29
27
28
30
26
MOTOR
MOTOR
BEARING 2
BEARING 1
-
Shld
Shld
Comp
33
35
32
34
31
36
MOTOR
AMBIENT
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Application Example
Motor Management Relay
469
Getting Started
GE Multilin
FIGURE 1–3: Typical Control Diagram
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806552A1.CDR
1–15
Page 24
Getting Started
Application Example469
Motor Management Relay
806551A1.CDR
1–16
FIGURE 1–4: Typical Breaker Control Diagram
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Application Example
Motor Management Relay
469
Getting Started
FIGURE 1–5: Typical Relay Control Diagram
• Power System Data
a) System: 3
b) Frequency: 60 Hz
c) Line voltage: 600 V
• Motor Data
As per the following motor data sheet information:
Φ, 4 wire
806555A1.CDR
GE Multilin
FIGURE 1–6: Motor Data Sheet Information
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Getting Started
Application Example469
Motor Management Relay
• Motor Operating Curves
Motor operating curves as shown below:
1–18
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.
• 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
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Application Example
Motor Management Relay
469
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 GEK-106491: 469 Communications Guide for
additional information.
Getting Started
Instrument Transformer
Data
• 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 secon da r y ratios.
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
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)
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Motor Management Relay
Application Example469
100000
Getting Started
10000
1000
100
TIME IN SECONDS
10
1.00
0.10 1.00
x15
x1
10 100 1000
MULTIPLE OF FULL LOAD AMPS
806804A5.CDR
1–20
FIGURE 1–8: Overload Curve Matching (Example)
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Application Example
Motor Management Relay
• 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 setpoint 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.
• 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.
469
Getting Started
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Getting Started
Motor Management Relay
Application Example469
• 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 i s 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:
R
r2
K
-------- -=
R
r1
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,
---------------------------- -------------------------------------------------------- -----
K
230
(per-unit locked rotor amps)
230
------------ -
2
6.31
6≈==
• 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
• 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.
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 setpoint 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”.
(EQ 1.1)
(EQ 1.2)
1–22
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Application Example
Motor Management Relay
469
Getting Started
806550A1.CDR
FIGURE 1–9: RTD Bias Example 1
You should now be familiar with maneuvering through and editing setpoint
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 setpoints
not explicitly mentioned should be left at the factory default value.
S2 System Setpoints The S2 setpoints page contains setpoints 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 sub-section. From this information and the resulting calculations,
program the page S2 setpoints as indicated.
For current transformers, make the following change in the
CURRENT SENSING setpoints 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
VOLTAGE SENSING setpoints page:
VT CONNECTION TYPE: “Open Delta”
ENABLE SINGLE VT OPERATION: “Off”
VOLTAGE TRANSFORMER RATIO: “5 : 1”
(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.
S2 SYSTEM SETUP Z
S2 SYSTEM SETUP ZV
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Getting Started
Motor Management Relay
Application Example469
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 setpoints 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
ZV SERIAL COMM. CONTROL page.
SERIAL COMMUNICATION CONTROL: “On”
ASSIGN START CONTROL RELAYS: “Auxiliary2”
S2 SYSTEM SETUP
The Auxiliary 2 relay will be used to start the motor. Note that this auxiliary relay
can not be used for any other application.
Once the signal is received the motor will be started across the line. Therefore, the
following setpoints are left with their default values. In the
REDUCE VOLTAGE STARTING setpoints page:
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”
S2 SYSTEM SETUP ZV
S3 Digital Inputs
Setpoints
The S3 setpoints 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 setpoints 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 inpu ts to ope rate 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:
1. Change the default names to meaningful values so they can be easily identified,
either via the LCD or when reviewing event reports.
2. Identify their asserted logic.
3. 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 to 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
DIGITAL INPUTS ZV ASSIGNABLE INPUT 1 setpoints page.
S3
1–24
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Application Example
Motor Management Relay
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”
GENERAL SWITCH A ALARM DELAY: “5.0 s”
GENERAL SWITCH A EVENTS: “On” so this event is registere d.
GENERAL SWITCH A TRIP: “Off”
If the relay will not be used to trip the motor when someone gain unauthorized
access to the station, the next setpoints shall be left with their default values:
GENERAL SWITCH A TRIP: “Off”
ASSIGN TRIP RELAYS: “Trip”
GENERAL SWITCH A TRIM DELAY: “5.0 s”
S5 Thermal Model The S5 Thermal Model setpoints page contains setpoints 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 setpoint
in the
S5 THERMAL MODEL ZV OVERLOAD CURVE SETUP menu:
STANDARD OVERLOAD CURVE NUMBER: “7”
469
Getting Started
S6 Current Elements The S6 Current Elements setpoints page contains setpoints 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 setpoints page as
indicated. When setting the relay for the first time, other setpoints not listed in this
example should be left disabled.
GE Multilin
For the Short Circuit element, enter the following values in the
Z SHORT CIRCUIT TRIP page. Press the MESSAGE T key after each setpoint is entered to
move to the next message.
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S6 CURRENT ELEMENTS
1–25
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Getting Started
Motor Management Relay
Application Example469
SHORT CIRCUIT TRIP: “Latched”
SHORT CIRCUIT TRIP OVEREACH FILETER: “Off” - no filtering of DC component is
required (refer to Short Circuit Trip on page 5–49 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: “ A uxiliary3”
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
ZV GROUND FAULT page. Press the MESSAGE T key after each setpoint is entered to
S6 CURRENT ELEMENTS
move to the next message.
GROUND FAULT OVERREACH FILETER: “Off” – no filtering of DC component is
required (refer to Ground Fault on page 5–53 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 setpoint
S6 CURRENT
is entered to move to the next message.
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”
S7 Motor Starting The S7 Motor Starting setpoints page contains additional setpoints used to
complement the Thermal Model. In our example, these characteristics are specified
under Motor Protection heading.
1–26
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Application Example
Motor Management Relay
For the Acceleration Timer element, enter the following values in the S7 MOTOR
STARTING Z ACCELERATION TIMER page. Press the MESSAGE T key after each setpoint is
completed to 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
ZV START INHIBIT page. Press the MESSAGE T key after each setpoint is completed to
S7 MOTOR STARTING
move 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 5–55 for
additional information.
There is not information available to set Starts/Hour, Time Between Starts, or the
Restart Block features. Therefore, the following setpoints must be disabled:
JOGGING BLOCK: “Off”
RESTART BLOCK: “Off”
S8 RTD Temperature The S8 RTD Temperature page contains the setpoints 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
RTD TYPES page. Press the MESSAGE T key after each setpoint is completed to move
to the next message.
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 setpoints in the
TEMPERTURE ZV RTD 1 to RTD6 menus:
RTD #1 APPLICATION: “Stator”
RTD #1 NAME: “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 TRIP: “Latched”
RTD #1 TRIP VOTING: “RTD #5”
ASSIGN TRIP RELAYS: “Trip”
RTD #1 TRIP TEMPERATURE: “155°C”
The settings for the other RTDs are entered in similar fashion. Refer to S8 RTD
Temperature on page 5–57 for additional settings and additional information on RTD
monitoring.
S8 RTD TEMPERTURE Z
469
Getting Started
S8 RTD
Other Settings a) Undervoltage Protection
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.
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1–27
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Getting Started
Motor Management Relay
Installation469
The following sub-section will illustrate the procedures to set the 469 Motor
Management Relay to meet those requirements.
b) Description
Using the same system information, the following example illustrates the steps to
set the 469 for Undervoltage protection.
The following setpoints are provided:
Pickup: 70% of nominal voltage – starting
80% of nominal voltage – running
Time Delay: 13.0 s
c) 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 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
ELEMENTS ZV UNDERVOLTAGE setpoints page. Press the ENTER key to save, and then
the MESSAGE T key, after each setpoint 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”
S9 VOLTAGE
1–28
Installation
Te s t i n g 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/
papers and FAQs relevant to the 469 Motor Management Relay.
http://www.GEindustrial.com/multilin
. The website also contains additional technical
GE Multilin
Page 37
Overview
Motor Management Relay
469
2 Introduction
Introduction
Overview
Description The 469 M otor 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.
GE Multilin
FIGURE 2–1: Single Line Diagram
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2–1
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Introduction
Motor Management Relay
Overview469
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.
51 Overload
86 Overload Lockout
66 Starts/Hour & Time Between Starts
Restart Block (Anti-Backspin Timer)
50 Short Circuit & Short Circuit Backup
Mechanical Jam
32
37
46 Current Unbalance
50G/51G Ground Fault & Ground Fault Backup
87 Differential
49 Stator RTD
38 Bearing RTD
27/59 Undervoltage/Overvoltage
47 Phase Reversal
81 Frequency
55/78 Power Factor
14 Speed Switch & Tachometer Trip
19 Reduced Voltage Start
48
Reverse Power
Undercurrent/Underpower
Acceleration
Other RTD & Ambient RTD
Open RTD Alarm
Short/Low RTD
Reactive Power
Analog Input
Demand Alarm: A kW kvar kVA
SR469 Self-Test, Service
Trip Coil Supervision
Welded Contactor
Breaker Failure
Remote Switch
Load Shed Switch
Pressure Switch
Vibration Switch
Incomplete Sequence (Reduced Voltage Start)
Remote Start/Stop
Over Torque
Forced Relay Operation
PROCTLA5.CDR
FIGURE 2–2: Protection Features
2–2
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GE Multilin
Page 39
Overview
Motor Management Relay
469
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 MENU key, viewing the
by accessing the
stores up to 256 time and date 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.
The 469 is equipped with 3 fully functional and independent communications ports.
The front panel RS232 port may be used for 469 setpoint 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 4to20mA or 0to1mA (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
A1 STATUS ZV LAST TRIP DATA actual values. The 469 event recorder
TARGET MESSAGES before the trip is reset, or
Introduction
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.
GE Multilin
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2–3
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Introduction
Motor Management Relay
Order Codes
Table 2–1: 469 Order Codes
Base Unit
Phase Current
Inputs
Control Power
Analog Outputs
Display
Harsh Environment
469 – * – * – * – * – *
469 |||||
P1 | | | |
P5 | | | |
|
|
LO
|
|
HI
|
A1 | |
A20 | |
|
|
|
|
|
|
|
||
E |
T |
D |
H
Overview469
469 Motor Management Relay
1 A phase CT secondaries
5 A phase CT secondaries
25 to 60 V DC;
20 to 48 V AC at 48 to 62 Hz
88 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
coating
Example Order Codes
Accessories The following accessories are available for the 469 Motor Management Relay:
1. The 469-P1-LO-A20-E code specifies a 469 Motor Management Relay with 1 A
CT inputs, 25 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.
• 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
13/8 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
2–4
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Page 41
Specifications 469
Motor Management Relay
Specifications
Specifications are subject to change without notice.
Inputs ANALOG CURRENT INPUTS
Inputs: 0 to 1 mA, 0 to 20mA, or 4 to
20 mA (setpoint)
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 (setpoint)
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 cur-
rent, 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 2–7 for additional
specifications.
GROUND CURRENT INPUTS
CT primary: 1 to 5000 A
CT secondary: 1 A or 5 A (setpoint)
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 cur-
rent, continuous at 3 × rated
current
CT (50:0.025) withstand:
continuous at 150 mA
PHASE CURRENT INPUTS
CT primary: 1 to 5000 A
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 curren t,
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
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.
Introduction
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469
Motor Management Relay
Specifications
Introduction
Outputs ANALOG CURRENT OUTPUT
Type: Active
Range: 4 to 20 mA, 0 to 1 mA
Accuracy: ±1% of full scale
Max. load: 4 to 20 mA input: 1200 Ω
Isolation: 36 V
4 Assignable Outputs:
(must be specified with order)
0 to 1 mA input: 10 kΩ
(isolated with RTDs
pk
and analog inputs)
phase A, B, and C current;
three-phase average current;
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;
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!
WARNING
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
Max ratings for 100000 operations:
VOLTAGE BREAK MAX.
DC
RESISTIVE
DC
INDUCTIVE
L/R=40ms
AC
RESISTIVE
AC
INDUCTIVE
P.F.=0 .4
30 A for 0.2 s
LOAD
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
Protection ACCELERATION TIMER
Pickup: transition of no phase current
Dropout: when current falls below over-
Time delay: 1.0 to 250.0 s in steps of 0.1
Timing accuracy: ±100 ms or ±0.5% of total
Elements: Trip
CURRENT UNBALANCE
Unbalance: I2/I1 if I
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
Elements: Trip and Alarm
FREQUENCY
Req’d voltage: >30% of full scale in phase A
Overfrequency pickup: 25.01 to 70.00 Hz in
Underfrequency pickup: 20.00 to 60.00 Hz in
Accuracy: ±0.02 Hz
Time delay: 0.1 to 60.0 s in steps of 0.1
Timing accuracy: <100 ms or ±0.5% of total
Elements: Trip and Alarm
to > overload pickup
load pickup
time
avg
× I
I
2/I1
time
steps of 0.01
steps of 0.01
time
avg
> FLA
/FLA if I
avg
< FLA
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
2–6
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GE Multilin
Page 43
Specifications 469
Motor Management Relay
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 × r ated 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
Timing accuracy: +50 ms
Elements: Trip
REDUCED VOLTAGE START
T ransition 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:
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
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
Introduction
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
Elements: Trip and Alarm
LOAD SHED
Configuration: assign to digital inputs 1 to 4
Timing accuracy: 100 ms maximum
Elements: Trip
GE Multilin
time
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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
2–7
Page 44
469
Motor Management Relay
Specifications
Introduction
TACHOMETER
Configuration: assign to digital inputs 1 to 4
Range: 100 to 7200 RPM
Pulse duty cycle: >10%
Elements: Trip and Alarm
Monitoring DEMAND
Metering: maximum phase current
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
Range: 0 to 999999.999 Mvar·hours
Timing accuracy: ±0.5%
Update rate: 5 seconds
METERED REACTIVE ENERGY
GENERATION
Description: Continuous total reactive
Range: 0 to 2000000.000 Mvar·hours
Timing accuracy: ±0.5%
Update Rate: 5 seconds
METERED REAL ENERGY
CONSUMPTION
Description: Continuous total real energy
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
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
Elements: Alarm (induction motors only)
three-phase real power
three-phase apparent power
three-phase reactive power
energy consumption
energy generation
consumption
steps of 0.1; torque unit is
selectable under torque setup
time
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
Elements: Trip and Alarm
time
POWER FACTOR
Range: 0.01 lead or lag to 1.00
Pickup level: 0.99 to 0.05 in steps of 0.01,
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
Elements: Trip and Alarm
lead and lag
time
THREE-PHASE APPARENT POWER
Range: 0 to 65535 kVA
Accuracy:
I
< 2 × CT: ±1% of × 2 × CT × VT ×
avg
I
> 2 × CT: ±1.5% of × 20 × CT × VT
avg
Elements: Trip and Alarm
VT
full scale
× VT
3
3
full scale
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 ×
avg
at I
avg
Timing accuracy: ±100ms or ± 0.5% of total
Elements: Trip and Alarm
VT
> 2 × CT: ±1.5% of × 20 × CT ×
full scale
VT × VT
time
3
3
full scale
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:
< 2 × CT:±1% of × 2 × CT × VT ×
at I
avg
at I
avg
Timing accuracy: ±0.5 s or ±0.5% of total
VT
> 2 × CT±1.5% of × 20 × CT × VT
full scale
× VT
time
full scale
3
3
2–8
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
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FUSE (HI and LO VOLT)
Current rating: 2.50 A
Type: 5 × 20 mm slow-blow Littel-
Model no.: 21502.5
NOTE
fuse, high breaking capacity
An external fuse must be used if
the supply voltage exceeds 250 V.
GE Multilin
Page 45
Specifications 469
Motor Management Relay
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
Te s t i n g TYPE TESTING
The table below lists the 469 type tests:
Standard Test Name Level
EIA 485 RS485 Communications Test 32 units at 4000 ft.
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: Air and Direct 15 kV / 8 kV
IEC 60255-22-3 Radiated RF Immunity 10 V/m
IEC 60255-22-4 Electrical Fast Transient / Burs t 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
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
pk
DEVICENET
Baud rate: 125K, 250K, 500K
MAC ID: 0 to 63 range
Connection type: Explicit Messages, Poll I/O,
Change Of State
ODVA certified
CLOCK
Accuracy: ±1 minute/month
Supercap backup life: 45 days when control
power is off
Introduction
GE Multilin
PRODUCTION TESTS
Thermal cycling: operational test at ambient,
Dielectric strength: 2.0 kV for 1 minute from
WARNING
reducing to –40°C and then
increasing to 60°C
relays, CTs, VTs, power supply
to safety ground
DO NOT CONNECT FILTER
GROUND TO SAFETY GROUND
DURING ANY PRODUCTION
TESTS!
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2–9
Page 46
469
Motor Management Relay
Specifications
Introduction
Certification CERTIFICATION
ACA: conforms to RF emissions for
CE: conforms to EN 55011/CISPR
EN: EN50263 EMC - CE for Europe
FCC: conforms to RF emissions for
IEC: conforms to 1010-1, LVD - CE
ISO: Manufactured under an
UL: UL listed E83849 for the USA
Australia, tick mark
11, EN 50082-2
North America, part 15
for Europe
ISO9001 registered system.
and Canada
Physical CASE
Type: Fully drawout (automatic CT
Seal: Seal provision
Mounting: Panel or 19-inch rack mount
IP Class: IP40-X
shorts)
Environmental ENVIRONMENT
NOTE
Ambient operating temperature:
Ambient storage temperature:
Humidity: up to 90%, non-condensing.
Altitude: up to 2000 m
Pollution degree: 2
NOTE
It is recommended that all relays must be powered up once per year, for
one hour continuously, to avoid deterioration of electrolytic capacitors and
subsequent relay failure.
–40°C to +60°C
–40°C to +80°C
At temperatures less than –20°C,
the LCD contrast may be
impaired.
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.
2–10
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GE Multilin
Page 47
Mechanical Installation
Motor Management Relay
469
3 Installation
Mechanical Installation
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.
Installation
GE Multilin
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 setpoint access jumper can be used to prevent
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3–1
Page 48
Motor Management Relay
WARNING
Mechanical Installation469
entry of setpoints 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.
Seal location
Installation
Product Identification Each 469 unit and case are equipped with a permanent label. This label is installed
FIGURE 3–2: Seal on Drawout Unit
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.
The case label details the following information: model number, manufacture date,
and special notes.
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.
3–2
FIGURE 3–3: Case and Unit Identification Labels
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GE Multilin
Page 49
Mechanical Installation
808704A1.CDR
Installation The 469 case, alone or adjacent to another SR-series unit, can be installed in the
Motor Management Relay
469
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.
FIGURE 3–4: Single 469 Cutout Panel
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.
Installation
GE Multilin
FIGURE 3–6: Bend Up Mounting Tabs
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3–3
Page 50
Motor Management Relay
Mechanical Installation469
Unit Withdrawal and
Installation
Insertion
TURN OFF CONTROL POWER BEFORE DRAWING OUT OR REINSERTING THE RELAY TO PREVENT MALOPERATION!
CAUTION
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
CAUTION
strong force in the following step or damage may result.
To remove the unit from the case:
1. 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.
2. 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
3. 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.
3–4
FIGURE 3–8: Rotate Handle to Stop Position
4. 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
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GE Multilin
Page 51
Mechanical Installation
Motor Management Relay
To insert the unit into the case:
1. Raise the locking handle to the highest position.
2. 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.
3. Slide the unit into the case until the guide pins on the unit have engaged the
guide slots on either side of the case.
4. Grasp the locking handle from the center and press down firmly, rotating the
handle from the raised position toward the bottom of the unit.
5. When the unit is fully inserted, the latch will be heard to click, locking the han-
dle in the final position.
No special ventilation requirements need to be observed during the
CAUTION
installation of the unit. The unit does not require cleaning.
Ethernet Connection If using the 469 with the Ethernet 10Base-T option, ens ure 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 3–4).
Ensure that the network cable does not get caught inside the case while
CAUTION
sliding in the unit. This may interfere with proper insertion to the case
terminal blocks and damage the cable.
469
Installation
GE Multilin
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
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3–5
Page 52
Motor Management Relay
DeviceNet Connection If using the 469 DeviceNet option, ensure that the network cable is disconnected
Installation
CAUTION
Mechanical Installation469
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 3–4).
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
• Prot ocol: DeviceNet
The following ports available simultaneously:
• RS232, 2 × RS485/4 22 with no DeviceNet option
• RS232, 1 × RS485/4 22 with DeviceNet option
The DeviceNet configuration is shown in the following table:
Pin Signal Description
1 V– Negative supply voltage
2 CAN_L CAN_L bus line
3 SHIELD Cable shield
4 CAN_H CAN_H bus line
5 V+ Positive supply voltage
3–6
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GE Multilin
Page 53
Mechanical Installation
806779A7.DWG
Terminal Locations
Motor Management Relay
469
Installation
GE Multilin
FIGURE 3–11: Terminal Layout
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3–7
Page 54
Motor Management Relay
Mechanical Installation469
Installation
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
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 •
D02RTD #7 Compensation G06Phase A CT •
D03RTD Return G07Phase 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 •
D07RTD #9 Compensation G11Filter Ground
D08RTD Return G12Safety 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 +
3–8
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GE Multilin
Page 55
Electrical Installation
Typical Wiring
Motor Management Relay
469
Electrical Installation
Installation
GE Multilin
FIGURE 3–12: Typical Wiring Diagram
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3–9
Page 56
Motor Management Relay
Installation
Electrical Installation469
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 3–7
and Table 3–1: 469 Terminal List on page 3–8 for terminal arrangement.
Control Power The order code from the terminal label on the side of the drawout unit specifies the
nominal control voltage as follows:
LO: 20 to 60 V DC; 20 to 48 V AC, or
HI: 90 to 300 V DC; 70 to 265 V AC
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.
The 469 control power must match the installed switching power supply. If
the applied voltage does not match, damage to the unit may occur!
CAUTION
3–10
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.
WARNING
Current Inputs a) 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.
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GE Multilin
Page 57
Electrical Installation
CAUTION
Motor Management Relay
469
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 2–5 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 8–1 for 2-phase CT information.
b) 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 5000 A for the 1 A / 5 A 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.
Installation
GE Multilin
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 setpoint 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 2–5). 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.
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Motor Management Relay
Installation
NOTE
NOTE
Electrical Installation469
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.
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 zero-sequence CT is recommended.
3–12
FIGURE 3–15: Core Balance Ground CT Installation – Unshielded Cable
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GE Multilin
Page 59
Electrical Installation
Motor Management Relay
469
Installation
FIGURE 3–16: Core Balance Ground CT Installation – Shielded Cable
c) 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 setpoint 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 2–5 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.
GE Multilin
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Motor Management Relay
Electrical Installation469
Installation
FIGURE 3–17: Core Balance Method
FIGURE 3–18: Summation Method with Phase CTs
3–14
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Electrical Installation
Motor Management Relay
469
Installation
FIGURE 3–19: Summation Method without Phase CTs
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 3–9) 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.
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.
GE Multilin
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Motor Management Relay
Installation
Electrical Installation469
FIGURE 3–20: Wye Voltage Transformer Connection
Digital Inputs 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 3–9).
In addition, the +24 V DC switch supply is brought out for control power of an
inductive or capacitive proximity probe. The NPN tr ansis tor output could be taken to
one of the assignable digital inputs configured as a counter or tachometer. Refer to
Specifications on page 2–5 for maximum current draw from the +24 V DC switch
supply.
DO NOT INJECT VOLTAGES TO DIGITAL INPUTS. DRY CONTACT
CAUTION
CONNECTIONS ONLY.
Analog Inputs 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 2–5 fo r maximum curren t
draw from this supply.
3–16
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GE Multilin
Page 63
Electrical Installation
Analog Outputs The 469 provides 4 analog output channels which may be ordered to provide a full-
Motor Management Relay
469
FIGURE 3–21: Loop Powered Transducer Connection
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 3–9, 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.
If a voltage output is required, a burden resistor must be co nnected at the input of
the SCADA measuring device. Ignoring the input impedance of the input, R
V
full scale
correspond to 1 mA, R
would be R
/ I
. For 0 to 1 mA, for example, if 5 V full scale is required to
max
= 5 V / 0.020 A = 250 Ω.
load
load
= 5 V / 0.001 A = 5000 Ω. For 4 to 20 mA, this resistor
load
=
Installation
RTD Sensor
Connections
GE Multilin
a) 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.
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Motor Management Relay
R
Electrical Installation469
Installation
RELAY
CHASSIS
GROUND
SHIELD
HOT
COMPENSATION
RTD #1
RTD SENSING
RETURN
469
B1
A1
A2
A3
MOTOR
STARTER
RTD
TERMINALS
IN MOTOR
STARTER
3 WIRE SHIELDED CABLE
Route cable in separate conduit from
current carrying conductors
Maximum total lead resistance
25 ohms (Platinum & Nickel RTDs)
3 ohms (Copper RTDs)
RTD TERMINALS
AT MOTOR
MOTOR
RTD IN
MOTOR
STAT OR
OR
BEARING
806819A5.CD
FIGURE 3–22: RTD Wiring
IMPORTANT: The RTD circuitry is isolated as a group with the Analog
Input circuitry and the Analog Output circuitry. Only one ground
NOTE
reference should be used for the three circuits. Transorbs limit this
isolation to ±36 V with respect to the 469 safety ground.
b) 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.
469
Motor Control
Terminal Box
Motor
J1
J2
No connection
L1
L2
L3
L4
L5
L6
L7
J3
J4
+
RTD1
–
–
RTD2
+
+
RTD3
–
808722A2.CDR
Hot
Compensation
RTD Return
Compensation
Hot
Hot
Compensation
RTD Return
A1
A2
A3
A4
A5
A6
A7
A8
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:
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Electrical Installation
Motor Management Relay
469
1. There will be an error in temperature readings due to lead and connection resis-
tances. 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.
c) 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.
Hot
Compensation
RTD Return
469
Motor Control
Terminal Box
A1
A2
A3
L1
Rcomp
L2
L3
RL1
RL2
Motor
+
RTD1
–
808719A1.CDR
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.
d) 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.
469
MotorControl
Terminal Box
Motor
Installation
GE Multilin
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
FIGURE 3–25: RTD Alternate Grounding
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+
RTD1
J1
J2
–
–
RTD2
+
+
RTD3
–
808720A2.CDR
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Motor Management Relay
Installation
Electrical Installation469
Output Relays There are six (6) Form-C output relays (see Specifications on page 2–5 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 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
WARNING
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 br eaker auxilia ry contact p ermitting 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.
3–20
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GE Multilin
Page 67
Electrical Installation
Motor Management Relay
469
Installation
FIGURE 3–26: Alternate Wiring for Contactors
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.
RS485 Communications
Ports
NOTE
Two independent two-wire RS485 ports are provided. Up to 32 469s can be daisychained 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.
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.
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
daisy-chained 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.
GE Multilin
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Motor Management Relay
Installation
Electrical Installation469
FIGURE 3–27: RS485 Communications Wiring
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 2000 V DC 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).
3–22
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GE Multilin
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Electrical Installation
Motor Management Relay
469
Installation
GE Multilin
FIGURE 3–28: Testing for Dielectric Strength
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Motor Management Relay
2-Speed Motor Wiring
Installation
Electrical Installation469
3–24
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GE Multilin
Page 71
Faceplate Interface
806977A1.CDR
Description The front panel provides local operator interface with a liquid crystal display, LED
Motor Management Relay
469
4 Interfaces
Faceplate Interface
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 setpoints or displaying measured
values. The RS232 program port is also provided for connection with a computer
running the EnerVista 469 Setup software.
Interfaces
Display 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.
LED Indicators Ther e are three groups of LED indicators. They are 469 Status, Motor Status , and
Output Relays.
FIGURE 4–1: 469 LED INDICATORS
a) 469 Status 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.
GE Multilin
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4–1
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Interfaces
Motor Management Relay
Faceplate Interface469
• SETPOINT ACCESS: This LED indicates that the access jumper is installed and
passcode protection has been satisfied; setpoints 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 com munication
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 setpoint 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 setpoint 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
Pressing any other key return to the normally displayed messages. While
viewing normally displayed messages, the Message LED continu es to flash if any
diagnostic message is active. To return to the diagnostic messages from the
normally displayed messages, press the MENU key until the following message is
displayed.
TARGET MESSAGES [Z]
T can be used to scroll through the messages.
Now, press the MESSAGE
the messages. Note that diagnostic messages for alarms disappear with the
condition while diagnostic messages for trips remain until cleared by a reset.
b) 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: O ne 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.
c) Output Relay LED Indicators
• 1 TRIP: The 1 TRIP relay has operated (energized).
• 2 AUXILIARY: The 2 AUXILIARY relay has operated (energized).
• 3 AUXILIARY: The 3 AUXILIARY relay h as operated (e nergized).
X key followed by the MESSAGE T key to scroll through
4–2
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Page 73
Faceplate Interface
RS232 Port This port is intended for connection to a portable PC. Setpoint files may be created
• 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).
at any location and downloaded through this port with the EnerVista 469 Setup
software. Local interrogation of setpoints 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.
Keypad a) Description
The 469 display messages are organized into main menus, pages, and sub-pages.
There are three main menus labeled Setpoints, Actual Values, and Target Messages.
Pressing the MENU key followed by the MESSAGE
menu headers, which appear in sequence as follows:
SETPOINTS [Z]
ACTUAL VALUES [Z]
Motor Management Relay
469
T key scrolls throug h the th r ee m a in
TARGET MESSAGES [Z]
Pressing the MESSAGE
display the corresponding menu page. Use the MESSAGE
scroll through the page headers.
When the display shows
display the page headers of programmable parameters (referred to as setpoints in
the manual). When the display shows
the ENTER key displays the page headers of measured parameters (referred to as
actual values in the manual). When the display shows
the MESSAGE
alarm conditions.
Each page is broken down further into logical sub-pages. The MESSAGE
MESSAGE
setpoints 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
setpoint values into memory to complete the change. The MESSAGE
used to enter sub-pages but not to store altered setpoints.
The ESCAPE key is also dual purpose. It is used to exit the sub-pages and to cancel a
setpoint change. The MESSAGE
cancel setpoint changes.
The VA L U E keys are used to scroll through the possible choices of an enumerated
setpoint. They also decrement and increment numerical setpoints. Numerical
setpoints may also be entered through the numeric keypad.
Pressing the HELP key displays context-sensitive information about setpoints such as
the range of values and the method of changing the setpoint. 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.
X key or the ENTER key displays the page headers of event messages or
S keys are used to navigate through the sub-pages. A summary of the
X key or the ENTER key from these main menu pages will
T and MESSAGE S keys to
SETPOINTS, pressing the MESSAGE X key or the ENTER key w il l
ACTUAL VALUES, pressing the MESSAGE X key or
TARGET MESSAGES, pressing
T and
X key can also be
W key can also be used to exit sub-pages and to
Interfaces
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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.
b) Entering Alphanumeric Text
Text setpoints 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 sel ection 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.
1. Move to message
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
S3 DIGITAL INPUTS ZV ASSIGNABLE INPUT 1 Z INPUT 1 FUNCTION,
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2. Press the MESSAGE
user-defined input will be changed in this example from the generic “General
Sw. A” to something more descriptive.
3. If an application is to be using the relay as a station monitor, it is more informative to rename this input “Station Monitor”. Press the decimal [.] to enter the
text editing mode. The first character will appear underlined as follows:
SWITCH NAME:
G
eneral Sw. A
4. Press the VA L U E keys until the character “S” is displayed in the first position. Now
press the decimal [.] key to store the character and advance the cursor to the
next position. Change the second character to a “t” in the same manner. 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. 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 setpoint.
SWITCH NAME:
Stn. Monitor
5. The 469 does not have ‘+’ or ‘–’ keys. Negative numbers may be entered in one
of two manners.
– Immediately pressing one of the VA L U E keys causes the setpoint to scroll
through its range including any negative numbers.
– After entering at least one digit of a numeric setpoint value, pressing the
VA L U E keys changes the sign of the value where applicable.
T key to view the SWITCH NAME setpoint. The name of this
4–4
Setpoint Entry To store any setpoints, terminals C1 and C2 (access terminals) must be shorted (a
keyswitch may be used for security). There is also a setpoint passcode feature that
restricts access to setpoints. The passcode must be entered to allow the changing of
setpoint values. A passcode of “0” effectively turns off the passcode feature - in this
case only the access jumper is required for changing setpoints. If no key is pressed
for 5 minutes, access to setpoint values will be restricted until the passcode is
entered again. To prevent setpoint access before the 5 minutes expires, the unit
may be turned off and back on, the access jumper may be removed, or the
ACCESS setpoint may be changed to “Restricted”. The passcode cannot be entered
until terminals C1 and C2 (access terminals) are shorted. When setpoint access is
allowed, the Setpoint Access LED indicator on the front of the 469 will be lit.
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Setpoint changes take effect immediately, even when motor is running. However,
changing setpoints while the motor is running is not recommended as any mistake
may cause a nuisance trip.
The following procedure may be used to access and alter setpoints. This specific
example refers to entering a valid passcode to allow access to setpoints if the
passcode was “469”.
1. Press the MENU key to access the header of each menu, which will be displayed
in the following sequence:
SETPOINTS [Z]
ACTUAL VALUES [Z]
TARGET MESSAGES [Z]
2. Press the MENU key until the display shows the header of the setpoints menu,
then press the MESSAGE
points 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
available setpoint page headers. Setpoint page headers look as follows:
SETPOINTS [Z]
S1 469 SETUP
3. To enter a given setpoints page, press the MESSAGE
MESSAGE
required message is reached. The end of a page is indicated by the message
END OF PAGE. The beginning of a page is indicated by TOP OF PAGE.
4. Each page is broken further into subgroups. Press MESSAGE
cycle through subgroups until the desired subgroup appears on the screen.
Press the MESSAGE
T or MESSAGE S keys to scroll through sub-page headers until the
PASSCODE [Z]
X or ENTER key to display the header for the first set-
T or MESSAGE S keys will scroll through all the
X or ENTER key. Press the
T or MESSAGE S to
X or ENTER key to enter a subgroup.
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5. Each sub-group has one or more associated setpoint messages. Press the
MESSAGE
desired message appears.
6. The majority of setpoints are changed by pressing the VA L U E keys until the
desired value appears, and then pressing ENTER. Numeric setpoints may also be
entered through the numeric keys (including decimals). If the entered setpoint
is out of range, the original setpoint value reappears. If the entered setpoint is
out of step, an adjusted value will be stored (e.g. 101 for a setpoint that steps
95, 100, 105 is stored as 100). If a mistake is made entering the new value,
pressing ESCAPE returns the setpoint to its original value. Text editing is a special
case described in detail in Entering Alphanumeric Text on page 4–4. Each time a
new setpoint is successfully stored, a message will flash on the display stating
NEW SETPOINT HAS BEEN STORED.
7. Press the 4, 6, 9 keys, then press ENTER. The following flash message is dis-
played:
and the display returns to:
T or MESSAGE S keys to scroll through setpoint messages until the
ENTER PASSCODE
FOR ACCESS:
NEW SETPOINT
HAS BEEN STORED
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Faceplate Interface469
Motor Management Relay
SETPOINT ACCESS:
PERMITTED
8. Press ESCAPE or MESSAGE W to exit the subgroup. Pressing ESCAPE or MESSAGE W
numerous times will always return the cursor to the top of the page.
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 MENU key until the relay displays
MESSAGES, then press the MESSAGE X key, followed by the MESSAGE T key, to scroll
TARGET
through the messages. For additional information and a complete list of diagnostic
messages, refer to Diagnostic Messages on page 6–29.
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
Table 4–1: Self-Test Warnings
Message Severity Failure description
Self-Test Warning 1
Replace Immediately
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
Unit Not Calibrated
Replace Immediately
Relay Not Configured
Consult User Manual
Service Required
Schedule Maintenance
Major Caused by detection of a corrupted location in the
Major Caused by a failure of the analog to digital
Major Caused by a failure of the analog to digital
Major Caused by out of range reading of self-test
Major Caused by out of range reading of self-test
Major Caused by out of range reading of self-test
Major Caused by out of range reading of self-test
Minor Occurs if the clock has not been set.
Minor Caused by the detection of unacceptably low (less
Minor This warning occurs when the relay has not been
Minor This warning occurs when the 469 CT Primary or
Minor Caused by a failure of the real time clock circuit.
program memory as determined by a CRC error
check. Any function of the relay is susceptible to
malfunction from this failure.
converter A/D1. The integrity of system input
measurements is affected by this failure.
converter A/D2. The integrity of system input
measurements is affected by this failure.
RTD 13. The integrity of system input
measurements is affected by this failure.
RTD 14. The integrity of system input
measurements is affected by this failure.
RTD 15. The integrity of system input
measurements is affected by this failure.
RTD 16. The integrity of system input
measurements is affected by this failure.
than -40°C) or high (greater than +85°C)
temperatures detected inside the unit.
factory calibrated.
FLA is set to “None”.
The ability of the relay to maintain the current
date and time is lost.
4–6
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EnerVista 469 Setup Software Interface
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
MESSAGE CYCLE TIME. The factory default flash message time is 4 seconds. For
additional information and a complete list of flash messages, refer to Flash
Messages on page 6–31.
EnerVista 469 Setup Software Interface
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.
This no-charge software, provided with every 469 relay, can be run from any
computer supporting Microsoft Windows
summary of the 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 setpoints
• Load/save setpoint 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
Motor Management Relay
S1 RELAY SETUP ZV PREFERENCES ZV DEFAULT
®
95 or higher. This chapter provides a
469
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Hardware Communications from the EnerVista 469 Setup to the 469 can be accomplished
three ways: RS232, RS485, and Ethernet communications. The following figures
illustrate typical connections for RS232 and RS485 communications. For Ethernet
connection details
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FIGURE 4–2: Communications using The Front RS232 Port
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4–8
FIGURE 4–3: Communications using Rear RS485 Port
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EnerVista 469 Setup Software Interface
FIGURE 4–4: Communications using Rear Ethernet Port
Motor Management Relay
469
Installing the EnerVista
469 Setup Software
The following minimum requirements must be met for the EnerVista 469 Setup
software to operate on your computer.
• Pentium class or higher processor (Pentium II 400 MHz or better recommended)
• Microsoft Windows 95, 98, 98SE, NT 4.0 (SP4 or higher), 2000, XP
• 128 MB of RAM (256 MB recommended)
• Minimum of 200 MB hard disk space
After ensuring these minimum requirements, us e the following procedure to install
the EnerVista 469 Setup software from the enclosed GE EnerVista CD.
1. Insert the GE EnerVista CD into your CD-ROM drive.
2. Click the Install Now button and follow the installation instructions to install
the no-charge EnerVista software on the local PC.
3. When installation is complete, start the EnerVista Launchpad application.
4. Click the IED Setup section of the Launch Pad window.
5. In the EnerVista Launch Pad window, click the Add Product button and select
the “469 Motor Management Relay” from the Install Software window as shown
below. Select the “Web” option to ensure the most recent software release, or
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select “CD” if you do not have a web connection, then click the Add Now butt on
to list software items for the 469.
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6. EnerVista Launchpad will obtain the latest installation software from the Web or
CD and automatically start the installation process. A status window with a
progress bar will be shown during the downloading process.
4–10
7. Select the complete path, including the new directory name, where the
EnerVista 469 Setup software will be installed.
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8. Click on Next to begin the installation. The files will be installed in the directory
indicated and the installation program will automatically create icons and add
EnerVista 469 Setup software to the Windows start menu.
9. Click Finish to end the installation. The 469 device will be added to the list of
installed IEDs in the EnerVista Launchpad window, as shown below.
Motor Management Relay
469
Configuring Serial
Communications
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Connecting EnerVista 469 Setup to the Relay
Before starting, verify that the serial cable is properly connected to either the RS232
port on the front panel of the device (for RS232 communications) or to the RS485
terminals on the back of the device (for RS485 communications). See Hardware on
page 4–7 for connection details.
This example demonstrates an RS232 connection. For RS485 communications, the
GE Multilin F485 converter will be required. Refer to the F485 manual for additional
details. To configure the relay for Ethernet communications, see Configuring
Ethernet Communications on page 4–13.
1. Install and start the latest version of the EnerVista 469 Setup software
(available from the GE EnerVista CD). See the previous section for the
installation procedure.
2. Click on the Device Setup button to open the Device Setup window and click
the Add Site button to define a new site.
3. Enter the desired site name in the Site Name field. If desired, a short
description of site can also be entered along with the display order of devices
defined for the site. In this example, we will use “Pumping Station 1” as the site
name. Click the OK button when complete.
4. The new site will appear in the upper-left list in the EnerVista 469 Setup
window.
5. Click the Add Device button to define the new device.
6. Enter the desired name in the Device Name field and a description (optional)
of the site.
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7. Select “Serial” from the Interface drop-down list. This will display a number of
interface parameters that must be entered for proper RS232 functionality.
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Using the Quick
Connect Feature
– Enter the slave address and COM port values (from the
SERIAL PORTS menu) in the Slave Address and COM Port fields.
– Enter the physical communications parameters (baud rate and parity set-
points) in their respective fields. Note that when communicating to the
relay from the front port, the default communications settings are a baud
rate of 9600, with slave address of 1, no parity, 8 bits, and 1 stop bit.
These values cannot be changed.
8. Click the Read Order Code button to connect to the 469 device and upload the
order code. If an communications error occurs, ensure that the 469 serial
communications values entered in the previous step correspond to the relay
setting values.
9. Click OK when the relay order code has been received. The new device will be
added to the Site List window (or Online window) located in the top left corner
of the main EnerVista 469 Setup window.
The 469 Site Device has now been configured for serial communications. Proceed to
Connecting to the Relay on page 4–15 to begin communications.
The Quick Connect button can be used to establish a fast connection through the
front panel RS232 port of a 469 relay. The following window will appear when the
Quick Connect button is pressed:
S1 469 SETUP ZV
4–12
As indicated by the window, the Quick Connect feature quickly connects the
EnerVista 469 Setup software to a 469 front port with the following settings: 9600
baud, no parity, 8 bits, 1 stop bit. Select the PC communications port connected to
the relay and press the Connect button.
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The EnerVista 469 Setup software will display a window indicating the status of
communications with the relay. When connected, a new Site called “Quick Connect”
will appear in the Site List window. The properties of this new site cannot be
changed.
Motor Management Relay
469
Configuring Ethernet
Communications
The 469 Site Device has now been configured via the Quick Connect feature for
serial communications. Proceed to Connecting to the Relay on page 4–15 to begin
communications.
Before starting, verify tha t the Ethernet cable is properly connected to the RJ-45
Ethernet port.
1. Install and start the latest version of the EnerVista 469 Setup software
(available from the GE enerVista CD). See the previous section for the
installation procedure.
2. Click on the Device Setup button to open the Device Setup window and click
the Add Site button to define a new site.
3. Enter the desired site name in the Site Name field. If desired, a short
description of site can also be entered along with the display order of devices
defined for the site. In this example, we will use “Pumping Station 2” as the site
name. Click the OK button when complete.
4. The new site will appear in the upper-left list.
5. Click the Add Device button to define the new device.
6. Enter the desired name in the Device Name field and a description (optional).
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7. Select “Ethernet” from the Interface drop-down list. This will display a number
of interface parameters that must be entered for proper Ethernet functionality.
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• Enter the IP address assigned to the relay.
• Enter the slave address and Modbus port values (from the
SERIAL PORTS menu) in the Slave Address and Modbus Port fields.
8. Click the Read Order Code button to connect to the 469 device and upload the
order code. If an communications error occurs, ensure that the 469 Ethernet
communications values entered in the previous step correspond to the relay
setting values.
9. Click OK when the relay order code has been received. The new device will be
added to the Site List window (or Online window) located in the top left corner
of the main EnerVista 469 Setup window.
The 469 Site Device has now been configured for Ethernet communications. Proceed
to the following section to begin communications.
S1 469 SETUP ZV
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-
Expand the Site List by double
clicking or by selecting the [+] box
Communications Status Indicator
Green = OK, Red = No Comms
Motor Management Relay
469
Connecting to the
Relay
Now that the communications parameters have been properly configured, the user
can easily connect to the relay.
1. Expand the Site list by double clic king on the site name or clicking on the «+»
box to list the available devices for the given site (for example, in the “Pumping
Station 1” site shown below).
2. Desired device trees can be expanded by clicking the «+» box. The following list
of headers is shown for each device:
• Device Definitions
• Settings
• Actual Values
•Commands
• Communications
3. Expand the Settings > Relay Setup list item and double click on Front Panel to
open the Front Panel settings window as shown below:
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NOTE
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FIGURE 4–5: Main Window After Connection
4. The Front Panel settings window will open with a corresponding status indicator
on the lower left of the EnerVista 469 Setup window.
5. If the status indicator is red, verify that the serial cable is properly connected to
the relay, and that the relay has been properly configured for communications
(steps described earlier).
The front panel setpoints can now be edited, printed, or changed according to user
specifications. Other setpoint and commands windows can be displayed and edited
in a similar manner. Actual values windows are also available for display. These
windows can be locked, arranged, and resized at will.
Refer to the EnerVista 469 Setup Help File for additional information about
the using the software.
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Working with Setpoints and Setpoint Files469
Motor Management Relay
Working with Setpoints and Setpoint Files
Engaging a Device The EnerVista 469 Setup software may be used in on-line mode (relay connected) to
directly communicate with a 469 relay. Communicating relays are organized and
grouped by communication interfaces and into sites. Sites may contain any number
of relays selected from the SR or UR product series.
Entering Setpoints The System Setup page will be used as an example to illustrate the entering of
setpoints. In this example, we will be changing the current sensing setpoints.
1. Establish communications with the relay.
2. Select the Setpoint > System Setup menu item. This can be selected from
the device setpoint tree or the main window menu bar.
3. Select the
This will display three arrows: two to increment/decrement the value and
another to launch the numerical calculator.
PHASE CT PRIMARY setpoint by clicking anywhere in the parameter box.
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4. Clicking the arrow at the end of the box displays a numerical keypad interface
that allows the user to enter a value within the setpoint range displayed near
the top of the keypad:
Click Accept to exit from the keypad and keep the new value. Click on Cancel
to exit from the keypad and retain the old value.
5. For setpoints requiring non-numerical pre-set values (e.g.
above, in the Voltage Sensing tab), clicking anywhere within the setpoint value
box displays a drop-down selection menu arrow . Click on the arrow t o select the
desired setpoint.
VT CONNECTION TYPE
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6. For setpoints requiring an alphanumeric text string (e.g. message scratchpad
messages), the value may be entered directly within the setpoint value box.
7. In the Setpoint / System Setup dialog box, click on Save to save the values into
the 469. Click Yes to accept any changes. Click No, and then Restore to retain
previous values and exit.
File Support Opening any EnerVista 469 Setup file will automatically launch the application or
provide focus to the already opened application. If the file is a settings file (has a
‘469’ extension) which had been removed from the Settings List tree menu, it will be
added back to the Settings List tree.
New files will be automatically added to the tree, which is sorted alphabetically with
respect to settings file names.
Motor Management Relay
469
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Using Setpoints Files a) Overview
The EnerVista 469 Setup software interface supports three ways of handling
changes to relay settings:
•In off-line mode (relay disconnected) to create or edit relay settings files for
later download to communicating relays.
• Directly modifying relay settings while connected to a communicating relay,
then saving the settings when complete.
• Creating/editing settings files while connected to a communicating relay, then
saving them to the relay when complete.
Settings files are organized on the basis of file names assigned by the user. A
settings file contains data pertaining to the following types of relay settings:
• Device Definition
•Product Setup
•System Setup
• Digital Inputs
•Output Relays
•Protection Elements
• Monitoring Functions
• Analog Inputs and Outputs
• Relay Testing
• Settings for Two-Speed Motors
• User Memory Map Setting Tool
Factory default values are supplied and can be restored after any changes.
The EnerVista 469 Setup display relay setpoints with the same hierarchy as the
front panel display. For specific details on setpoints, refer to Chapter 5.
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b) Downloading and Saving Setpoints Files
Setpoints must be saved to a file on the local PC before performing any firmware
upgrades. Saving setpoints is also highly recommended before making any setpoint
changes or creating new setpoint files.
The EnerVista 469 Setup window, setpoint files are accessed in the Settings List
control bar window or the Files Window. Use the following procedure to download
and save setpoint files to a local PC.
1. Ensure that the site and corresponding device(s) have been properly defined
and configured as shown in Connecting EnerVista 469 Setup to the Relay on
page 4–11.
2. Select the desired device from the site list.
3. Select the File > Read Settings from Device menu item to obtain settings
information from the device.
4. After a few seconds of data retrieval, the software will request the name and
destination path of the setpoint file. The corresponding file extension will be
automatically assigned. Press Save to complete the process. A new entry will
be added to the tree, in the File pane, showing path and file name for the
setpoint file.
c) Adding Setpoints Files to the Environment
The EnerVista 469 Setup software provides the capability to review and manage a
large group of setpoint files. Use the following procedure to add a new or existing
file to the list.
1. In the files pane, right-click on ‘Files’ and select the Add Existing Setting File
item as shown:
4–18
2. The Open dialog box will appear, prompting for a previously saved setpoint file.
As for any other Windows
Open. The new file and complete path will be added to the file list.
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®
application, browse for the file to add then click
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d) Creating a New Setpoint File
The EnerVista 469 Setup software allows the user to create new setpoint files
independent of a connected device. These can be uploaded to a relay at a later date.
The following procedure illustrates how to create new setpoint files.
1. In the File pane, right click on ‘File’ and select the New Settings File item. The
EnerVista 469 Setup software displays the following box will appear, allowing for
the configuration of the setpoint file for the correct firmware version. It is
important to define the correct firmware version to ensure that setpoints not
available in a particular version are not downloaded into the relay.
2. Select the Firmware Version for the new setpoint file.
3. For future reference, enter some useful information in the Description box to
facilitate the identification of the device and the purpose of the file.
4. To select a file name and path for the new file, click the button beside the Enter
File Name box.
5. Select the file name and path to store the file, or select any displayed file name
to update an existing file. All 469 setpoint files should have the extension ‘469’
(for example, ‘motor1.469’).
6. Click Save and OK to complete the process. Once this step is completed, the
new file, with a complete path, will be added to the EnerVista 469 Setup
software environment.
Motor Management Relay
469
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e) Upgrading Setpoint Files to a New Revision
It is often necessary to upgrade the revision code for a previously sav ed setpoi nt file
after the 469 firmware has been upgraded (for example, this is required for
firmware upgrades). This is illustrated in the following procedure.
1. Establish communications with the 469 relay.
2. Select the Actual > Product Information menu item and record the Software
Revision identifier of the relay firmware as shown below.
3. Load the setpoint file to be upgraded into the EnerVista 469 Setup environment
as described in Adding Setpoints Files to the Environment on page 4–18.
4. In the File pane, select the saved setpoint file.
5. From the main window menu bar, select the File > Properties menu item and
note the version code of the setpoint file. If this version (e.g. 4.0X shown
below) is different than the Software Revision code noted in step 2, select a
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Working with Setpoints and Setpoint Files469
New File Version that matches the Software Revision code from the pull-down
menu.
For example, if the software revision is 2.80 and the current setpoint file
revision is 4.00, change the setpoint file revision to “4.0X”, as shown below.
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Enter any special comments
about the setpoint file here.
6. When complete, click Convert to convert the setpoint file to the desired revision.
A dialog box will request confirmation. See Loading Setpoints from a File on
page 4–21 for instructions on loading this setpoint file into the 469.
f) Printing Setpoints and Actual Values
The EnerVista 469 Setup software allows the user to print partial or complete lists of
setpoints and actual values. Use the following procedure to print a list of setpoints:
1. Select a previously saved setpoints file in the File pane or establish
communications with a 469 device.
2. From the main window, select the File > Print Settings menu item.
3. The Print/Export Options dialog box will appear. Select Settings in the upper
section and select either Include All Features (for a complete list) or Include
Only Enabled Features (for a list of only those features which are currently
used) in the filtering section and click OK.
Select the desired setpoint version
from this menu. The 4.0x indicates
versions 4.00, 4.01, 4.02, etc.
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4. The process for File > Print Preview Settings is identical to the steps above.
Setpoints lists can be printed in the same manner by right clicking on the desired
file (in the file list) or device (in the device list) and selecting the Print Device
Information or Print Settings File options.
A complete list of actual values can also be printed from a connected device with the
following procedure:
1. Establish communications with the desired 469 device.
2. From the main window, select the File > Print Settings menu item.
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Working with Setpoints and Setpoint Files
3. The Print/Export Options dialog box will appear. Select Actual Values in the
upper section and select either Include All Features (for a complete list) or
Include Only Enabled Features (for a list of only those features which are
currently used) in the filtering section and click OK.
Actual values lists can be printed in the same manner by right clicking on the
desired device (in the device list) and selecting the Print Device Information
option.
g) Loading Setpoints from a File
An error message will occur when attempting to download a setpoint file
WARNING
with a revision number that does not match the relay firmware. If the
firmware has been upgraded since saving the setpoint file, see Upgrading
Setpoint Files to a New Revision on page 4–19 for instructions on changing the
revision number of a setpoint file.
The following procedure illustrates how to load setpoints from a file. Before loading
a setpoints file, it must first be added to the EnerVista 469 Setup environment as
described in Adding Setpoints Files to the Environment on p age 4–18.
1. Select the previously saved setpoints file from the File pane of the EnerVista
469 Setup software main window.
2. Select the File > Properties menu item and verify that the corresponding file
is fully compatible with the hardware and firmware version of the target relay. If
the versions are not identical, see Upgrading Setpoint Files to a New Revision on
page 4–19 for details on changing the setpoints file version.
3. Right-click on the selected file and select the Write Settings to Device item.
4. The EnerVista 469 Setup software will generate the following warning message,
to remind the user to remove the relay from service, before attempting to load
setpoints into an in-service relay.:
Motor Management Relay
469
Interfaces
5. Select the target relay from the list of devices shown and click Send. If there is
an incompatibility, an error of the following type will occur.
6. If there are no incompatibilities between the target device and the Setpoints
file, the data will be transferred to the relay. An indication of the percentage
completed will be shown in the bottom of the main menu.
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Description To upgrade the 469 firmware, follow the procedures listed in this section. Upon
Upgrading Relay Firmware469
Upgrading Relay Firmware
successful completion of this procedure, the 469 will have new fir mware installed
with the original setpoints.
The latest firmware files are available from the GE Multilin website at http://
www.GEindustrial.com/multilin.
Interfaces
Saving Setpoints To A
File
Before upgrading firmware, it is very important to save the current 469 settings to a
file on your PC. After the firmware has been upgraded, it will be necessary to load
this file back into the 469.
Refer to Downloading and Saving Setpoints Files on page 4–18 for details on saving
relay setpoints to a file.
Loading New Firmware Loading new firmware into the 469 flash memory is accomplished as follows:
1. Connect the relay to the local PC and save the setpoints to a file as shown in
Downloading and Saving Setpoints Files on page 4–18.
2. Select the Communications > Update Firmware menu item.
3. The following warning message will appear. Select Yes to proceed or No the
cancel the process. Do not proceed unless you have saved the current
setpoints.
4. An additional message will be displayed to ensure the PC is connected to the
relay front port, as the 469 cannot be upgraded via the rear RS485 ports.
5. The EnerVista 469 Setup software will request the new firmware file. Locate the
firmware file to load into the 469. The firmware filename has the following
format:
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30 H400 A8 . 000
Modification Number (000 = none)
GE Multilin use only
Firmware Version
Required 469 hardware revision
Product code (30 = 469)
FIGURE 4–6: Firmware File Format
6. The EnerVista 469 Setup software automatically lists all filenames beginning
with ‘30’. Select the appropriate file and click OK to continue.
7. The software will prompt with another Upload Firmware Warning window. This
will be the final chance to cancel the firmware upgrade before the flash memory
is erased. Click Yes to continue or No to cancel the upgrade.
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469
8. The EnerVista 469 Setup software now prepares the 469 to receive the new
firmware file. The 469 will display a message indicating that it is in Upload
Mode. While the file is being loaded into the 469, a status box appears showing
how much of the new firmware file has been transferred and how much is
remaining, as well as the upgrade status. The entire transfer process takes
approximately five minutes.
9. The EnerVista 469 Setup software will notify the user when the 469 has finished
loading the file. Carefully read any displayed messages and click OK to return
the main screen.
Cycling power to the relay is recommended after a firmware upgrade.
NOTE
After successfully updating the 469 firmware, the relay will not be in service and will
require setpoint programming. To communicate with the relay, the following settings
will have to me manually programmed.
MODBUS COMMUNICATION ADDRESS
BAUD RATE
PARITY (if applicable)
When communications is established, the saved setpoints must be reloaded back
into the relay. See Loading Setpoints from a File on page 4–21 for details.
Modbus addresses assigned to firmware modules, features, settings, and
corresponding data items (i.e. default values, min/max values, data type, and item
size) may change slightly from version to version of firmware.
The addresses are rearranged when new features are added or ex istin g features are
enhanced or modified. The
upgrading/downgrading the firmware is a resettable, self-test message intended to
inform users that the Modbus addresses have changed with the upgraded firmware.
This message does not signal any problems when appearing after firmware
upgrades.
EEPROM DATA ERROR message displayed after
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Motor Management Relay
Advanced EnerVista 469 Setup Features
Triggered Events While the int er f ac e is in e ith er o n- lin e or off-line mode, data generated by triggered
specified parameters can be viewed and analyzed via one of the following:
• Event Recorder: The event recorder captures contextual data associated with
the last 256 events, listed in chronological order from most recent to the oldest.
• Oscillography: The oscillography waveform traces provide a visual display of
power system data captured during specific triggered events.
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Waveform Capture
(Trace Memory)
The EnerVista 469 Setup software can be used to capture waveforms (or view trace
memory) from the 469 relay at the instance of a trip. A maximum of 128 cycles can
be captured and the trigger point can be adjusted to anywhere within the set cycles.
A maximum of 16 traces can be buffered (stored) with the buffer/cycle trade-off.
The following waveforms can be captured:
• Phase A, B, and C currents (I
• Differential A, B, and C currents (I
• Ground curren ts (I
• Phase A-N, B-N, and C-N voltages (V
•Phase A-B and B-C (V
1. With EnerVista 469 Setup running and communications established, select the
Actual > Waveform Capture menu item to open the waveform capture setup
window:
)
g
ab
, Ib, and Ic)
a
, I
diffa
and Vbc) for open-delta connections
, and I
diffb
, Vbn, and Vcn) for wye connections
an
diffc
)
4–24
Number of available files
Files to be saved or viewed
Click on Trigger Waveform to trigger a waveform capture.
The waveform file numbering starts with the number zero in the 469; therefore,
the maximum trigger number will always be one less then the total number
triggers available.
2. Click on the Save to File button to save the selected waveform to the local PC.
A new window will appear requesting for file name and path.
The file is saved as a CSV (comma delimited values) file, which can be viewed
and manipulated with compatible third-party software. To view a previously
saved file, click the Open button and select the corresponding CSV file.
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Save waveform to a file
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Advanced EnerVista 469 Setup Features
Preference button
3. To view the captured waveforms, click the Launch Viewer button. A detailed
Waveform Capture window will appear as shown below:
Motor Management Relay
469
TRIGGER TIME & DATE
Display the time & date of the
Trigger
VECTOR DISPLAY SELECT
Click here to open a new graph
to display vectors
CURSOR LINE POSITION
Indicate the cursor line position
in time with respect to the
trigger time
DELTA
Indicates time difference
between the two cursor lines
Interfaces
Display graph values
at the corresponding
cursor line. Cursor
lines are identified by
their colors.
FILE NAME
Indicates the
file name and
complete path
(if saved)
CURSOR
LINES
To move lines locate the mouse pointer
over the cursor line then click and drag
the cursor to the new location.
TRIGGER LINE
Indicates the
point in time for
the trigger
FIGURE 4–7: Waveform Capture Window Attributes
4. The red vertical line indicates the trigger point of the relay.
5. The date and time of the trigger is displayed at the top left corner of the
window. To match the captured waveform with the event that triggered it, make
note of the time and date shown in the graph. Then, find the event that
matches the same time and date in the event recorder. The event record will
provide additional information on the cause and the system conditions at the
time of the event. Additional information on how to download and save events is
shown in Event Recorder on page 4–29.
6. From the window main menu bar, press the Preference button to change the
graph attributes.
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Advanced EnerVista 469 Setup Features469
Motor Management Relay
7. The following window will appear:
Change the color of each graph as desired, and select other options as required,
by checking the appropriate boxes. Click OK to store these graph attributes,
and to close the window.
8. The Waveform Capture window will reappear with the selected graph attributes
available for use.
Phasors The EnerVista 469 Setup software can be used to view the phasor diagram of three-
phase currents and voltages. The phasors are for: phase voltages Va, Vb, and Vc;
phase currents Ia, Ib, and Ic.
1. With the EnerVista 469 Setup software running and communications established, open the Actual Values > Metering Data window, then click on the
Phasors tab.
2. The EnerVista 469 Setup software will display the following window:
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3. Press the “View” button to display the following window:
VOLTAGE LEVEL
Displays the value
and the angle of
the voltage phasors
CURRENT LEVEL
Displays the value
and angle of the
current phasor
Motor Management Relay
469
VOLTAGE VECTORS
Assigned to Phasor
Set 1, Graph 1
CURRENT VECTORS
Assigned to Phasor
Set 2, Graph 2
4. The 469 Motor Management Relay was designed to display lagging angles.
Therefore, if a system condition would cause the current to lead the voltage by
45°, the 469 relay will display such angle as 315° Lag instead of 45° Lead.
When the currents and voltages measured by the relay are zero, the angles
displayed by the relay and those shown by the EnerVista 469 Setup
WARNING
software are not fixed values.
Trending (Data Logger) The trending or data logger feature is used to sample and record up to eight actual
values at an interval defined by the user. Several parameters can be trended and
graphed at sampling periods ranging from 1 second up to 1 hour. The parameters
which can be trended by the EnerVista 469 Setup software are:
• Currents/Voltages:
Phase Currents A, B, and C, and Average Phase Current
Motor Load
Current Unbalance
Ground Current
Differential Currents A, B, and C
System Frequency
Voltages Vab, Vbc, Vca Van, Vbn & Vcn
• Power:
Power Factor
Real (kW or hp) Reactive (kvar), and Apparent (kVA) Power
Positive Watthours
Positive and Negative Varhours
Torque
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Advanced EnerVista 469 Setup Features469
• Temperature:
Hottest Stator RTD
Thermal Capacity Used
RTDs 1 through 12
• Demand:
Current
Peak Current
Reactive Power
Peak Reactive Power
Apparent Power
Peak Apparent Power
• Others:
Analog Inputs 1, 2, 3, and 4
Tachometer
1. With EnerVista 469 Setup running and communications established, select the
Actual Values > Trending menu item to open the trending window. The following window will appear.
Interfaces
2. To prepare for new trending, select Stop to stop the data logger and Reset to
clear the screen.
3. Select the graphs to be displayed through the pull-down menu beside each
channel description.
4. Select the Sample Rate through the pull-down menu.
5. If you want to save the information c aptured by trending, check the box besides
Log Samples to File. The following dialog box will appear requesting for file
name and path. The file is saved as 'csv' (comma delimited values) file, which
can be viewed and manipulated with compatible third-party software. Ensure
that the sample rate not less than 5 seconds. Otherwise, some data may not get
written to the file.
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6. To limit the size of the saved file, enter a nu mber in t he Limit File Capacity To
box. The minimum number of samples is 1000. At a sampling rate of 5 seconds
(or 1 sample every 5 seconds), the file will contain data collected during the
past 5000 seconds. The EnerVista 469 Setup software will automatically estimate the size of the trending file.
7. Press “Run” to start the data logger. If the Log Samples to File item is
selected, the EnerVista 469 Setup software will begin collecting data at the
selected sampling rate and will display it on the screen. The data log will continue until the Stop button is pressed or until the selected number of samples is
reached, whichever occurs first.
8. During the process of data logging, the trending screen appears as shown
below.
SAVE DATA TO FILE
Select to save the
information to a CSV
file on the PC
MODE SELECT
Select to view Cursor 1,
Cursor 2, or the Delta
(difference) values for
the graph
Motor Management Relay
BUTTONS
Zoom In enlarges the graph
Zoom Out shrinks the graph
Reset clears the screen
Run/Stop starts and stops
the data logger
469
GRAPH CHANNEL
Select the desired
channel to be captured
from the pull-down menu
LEVEL
Displays the value
at the active
cursor line
CURSOR LINES
Click and drag the
cursor lines with
the left mouse
button
WAVEFORM
The trended data
from the 469 relay
FIGURE 4–8: Trending Screen
Event Recorder The 469 event recorder can be viewed through the EnerVista 469 Setup software.
The event recorder stores generator and system information each time an event
occurs (e.g. breaker failure). A maximum of 256 events can be stored, where E256
is the most recent event and E01 is the oldest event. E01 is overwritten whenever a
new event occurs. Refer to Event 01 to Event 256 on page 6–27 for additional
information on the event recorder.
Use the following procedure to view the event recorder with EnerVista 469 Setup:
1. With EnerVista 469 Setup running and communications established, select the
Actual > A4 Event Recorder item from the main menu. This displays the
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Advanced EnerVista 469 Setup Features469
Event Recorder window indicating the list of recorded events, with the most
current event displayed first.
CLEAR EVENTS
Click the Clear
Events button to
clear the event list
from memory.
EVENT LISTING
Lists the last 256 events
with the most recent
displayed at top of list.
EVENT SELECTION
Select an event row to
view event data information,
which will be displayed in the
window to the right
EVENT NUMBER
The event data information
is related to the selected
event is shown
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DEVICE ID
The events shown here
correspond to this device.
EVENT DATA
System information as
measured by the relay
at the instant of the
event occurrence.
SAVE EVENTS
Click the Save Events
button to save the event
record to the PC as a
CSV file.
FIGURE 4–9: Event Recorder Window
2. T o view detailed information for a giv en ev ent and the system information at the
moment of the event occurrence, change the event number on the Select
Event box.
Modbus User Map The EnerVista 469 Setup software provides a means to program the 469 User Map
(Modbus addresses 0180h to 01F7h). Refer to GE Publication GEK-106491: 469
Communications Guide for additional information on the User Map.
1. Select a connected device in EnerVista 469 Setup.
2. Select the Setpoint > User Map menu item to open the following window.
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