Multilin SR469 User manual

SR469
MOTOR MANAGEMENT RELAY®
Instruction Manual
SR469 Revision: 30D260A8.000
SR469 PC Software Revision: 2.6
Manual P/N: 1601-0057-D7
Copyright 1998 GE Multilin
;39:99$71&'5
SR469 IN SERVICE STOPPED R1 TRIP
SETPOINT ACCESS STARTING R2 AUXILIARY
COMPUTER RS232 RUNNING R3 AUXILIARY
R4 ALARM
R5 BLOCK START
R6 SERVICE
MESSAGE
HOT RTD
LOSS OF LOAD
MOTOR MANAGEMENT
RELAY
PROGRAM PORT
SETPOINT
789
456
123
.0
HELP
MESSAGE
VA L UE
ACTUAL
ESCAPE
ENTER
TM
RESET
NEXT
RESET
POSSIBLE
COMPUTER RS485
AUXILIARY RS485
LOCKOUT
SR469 STATUS MOTOR STATUS
OUTPUT RELAYS
OVERLOAD PICKUP
UNBALANCE PICKUP
GROUND PICKUP
CANADA
215Anderson Avenue,Markham, Ontario, L6E1B3
Tel: [phone] Fax: [phone]
Internet:http://www.ge.com/edc/pm/
Click here to get to our homepage:
http://www.ge.com/indsys/pm/

SR469 MANUAL TABLE OF CONTENTS
i
1. INTRODUCTION.......................................................................................................................1-1
1.1 OVERVIEW ..........................................................................................................................................................................1-1
1.2 ORDER INFORMATION.......................................................................................................................................................1-3
1.3 SR469 SPECIFICATIONS....................................................................................................................................................1-4
2. INSTALLATION........................................................................................................................2-1
2.1 MECHANICAL ......................................................................................................................................................................2-1
2.1.1 DESCRIPTION...............................................................................................................................................................................................2-1
2.1.2 PRODUCT IDENTIFICATION........................................................................................................................................................................2-2
2.1.3 INSTALLATION..............................................................................................................................................................................................2-3
2.1.4 UNIT WITHDRAWAL AND INSERTION........................................................................................................................................................2-4
2.1.5 TERMINAL LOCATIONS................................................................................................................................................................................2-5
2.2 ELECTRICAL........................................................................................................................................................................2-6
2.2.1 TYPICAL WIRING..........................................................................................................................................................................................2-8
2.2.2 CONTROL POWER.......................................................................................................................................................................................2-8
2.2.3 PHASE CURRENT INPUTS ..........................................................................................................................................................................2-8
2.2.4 GROUND CURRENT INPUT.........................................................................................................................................................................2-9
2.2.5 DIFFERENTIAL CURRENT INPUTS...........................................................................................................................................................2-10
2.2.6 VOLTAGE INPUTS......................................................................................................................................................................................2-11
2.2.7 DIGITAL INPUTS .........................................................................................................................................................................................2-11
2.2.8 ANALOG INPUTS ........................................................................................................................................................................................2-12
2.2.9 ANALOG OUTPUTS ....................................................................................................................................................................................2-12
2.2.10 RTD SENSOR CONNECTIONS................................................................................................................................................................2-13
2.2.11 OUTPUT RELAYS......................................................................................................................................................................................2-16
2.2.12 DRAWOUT INDICATOR............................................................................................................................................................................2-17
2.2.13 RS485 COMMUNICATIONS PORTS ........................................................................................................................................................2-17
2.2.14 TYPICAL 2 SPEED MOTOR WIRING.......................................................................................................................................................2-18
2.2.15 DIELECTRIC STRENGTH TESTING.........................................................................................................................................................2-19
3. SR469 OPERATION.................................................................................................................3-1
3.1 OVERVIEW ..........................................................................................................................................................................3-1
3.1.1 SR469 FACEPLATE.......................................................................................................................................................................................3-1
3.1.2 DISPLAY ........................................................................................................................................................................................................3-2
3.1.3 LED INDICATORS .........................................................................................................................................................................................3-2
3.1.4 RS232 PROGRAM PORT..............................................................................................................................................................................3-3
3.1.5 KEYPAD.........................................................................................................................................................................................................3-4
3.1.6 ENTERING ALPHANUMERIC TEXT.............................................................................................................................................................3-4
3.1.7 ENTERING +/- SIGNS ...................................................................................................................................................................................3-4
3.1.8 SETPOINT ENTRY ........................................................................................................................................................................................3-5
4. SETPOINT PROGRAMMING....................................................................................................4-1
4.1 OVERVIEW ..........................................................................................................................................................................4-1
4.1.1 TRIPS / ALARMS/ BLOCKS DEFINED .........................................................................................................................................................4-1
4.1.2 RELAY ASSIGNMENT PRACTICES.............................................................................................................................................................4-2
4.1.3 SETPOINT MESSAGE MAP..........................................................................................................................................................................4-3
4.2 S1 SR469 SETUP.................................................................................................................................................................4-4
4.2.1 PASSCODE....................................................................................................................................................................................................4-4
4.2.2 PREFERENCES ............................................................................................................................................................................................4-5
4.2.3 SERIAL PORTS .............................................................................................................................................................................................4-5
4.2.4 REAL TIME CLOCK.......................................................................................................................................................................................4-6
4.2.5 DEFAULT MESSAGES..................................................................................................................................................................................4-6
4.2.6 MESSAGE SCRATCHPAD............................................................................................................................................................................4-7
4.2.7 CLEAR DATA.................................................................................................................................................................................................4-8
4.2.8 INSTALLATION..............................................................................................................................................................................................4-9
4.3 S2 SYSTEM SETUP...........................................................................................................................................................4-10
4.3.1 CURRENT SENSING...................................................................................................................................................................................4-10
4.3.2 VOLTAGE SENSING...................................................................................................................................................................................4-10
4.3.3 POWER SYSTEM........................................................................................................................................................................................4-11
4.3.4 SERIAL COMMUNICATION CONTROL......................................................................................................................................................4-12
4.3.5 REDUCED VOLTAGE..................................................................................................................................................................................4-12
4.4 S3 DIGITAL INPUTS ..........................................................................................................................................................4-13

TABLE OF CONTENTS SR469 MANUAL
ii
4.4.1 ACCESS SWITCH .......................................................................................................................................................................................4-14
4.4.2 TEST SWITCH.............................................................................................................................................................................................4-14
4.4.3 EMERGENCY RESTART ............................................................................................................................................................................4-14
4.4.4 REMOTE RESET.........................................................................................................................................................................................4-14
4.4.5 STARTER STATUS......................................................................................................................................................................................4-15
4.4.6 ASSIGNABLE DIGITAL INPUTS .................................................................................................................................................................4-15
4.4.7 DIGITAL INPUT FUNCTION: REMOTE ALARM.........................................................................................................................................4-15
4.4.8 DIGITAL INPUT FUNCTION: REMOTE TRIP .............................................................................................................................................4-16
4.4.9 DIGITAL INPUT FUNCTION: SPEED SWITCH TRIP.................................................................................................................................4-16
4.4.10 DIGITAL INPUT FUNCTION: LOAD SHED TRIP......................................................................................................................................4-17
4.4.11 DIGITAL INPUT FUNCTION: PRESSURE SWITCH ALARM...................................................................................................................4-17
4.4.12 DIGITAL INPUT FUNCTION: PRESSURE SWITCH TRIP........................................................................................................................4-18
4.4.13 DIGITAL INPUT FUNCTION: VIBRATION SWITCH ALARM....................................................................................................................4-18
4.4.14 DIGITAL INPUT FUNCTION: VIBRATION SWITCH TRIP........................................................................................................................4-18
4.4.15 DIGITAL INPUT FUNCTION: DIGITAL COUNTER...................................................................................................................................4-19
4.4.16 DIGITAL INPUT FUNCTION: TACHOMETER...........................................................................................................................................4-20
4.4.17 DIGITAL INPUT FUNCTION: GENERAL SWITCH A-D............................................................................................................................4-21
4.4.18 DIGITAL INPUT FUNCTION: CAPTURE TRACE ....................................................................................................................................4-21
4.4.19 DIGITAL INPUT FUNCTION: SIMULATE PRE-FAULT............................................................................................................................4-21
4.4.20 DIGITAL INPUT FUNCTION: SIMULATE FAULT.....................................................................................................................................4-21
4.4.21 DIGITAL INPUT FUNCTION: SIMULATE PRE-FAULT…FAULT.............................................................................................................4-21
4.5 S4 OUTPUT RELAYS.........................................................................................................................................................4-21
4.5.1 RELAY RESET MODE.................................................................................................................................................................................4-22
4.5.2 FORCE OUTPUT RELAY............................................................................................................................................................................4-23
4.6 S5 THERMAL MODEL........................................................................................................................................................4-24
4.6.1 MOTOR THERMAL LIMITS .........................................................................................................................................................................4-24
4.6.2 SR469 THERMAL MODEL...........................................................................................................................................................................4-25
4.6.3 OVERLOAD CURVE SETUP.......................................................................................................................................................................4-26
4.6.4 UNBALANCE BIAS......................................................................................................................................................................................4-35
4.6.5 MOTOR COOLING.......................................................................................................................................................................................4-36
4.6.6 HOT/COLD CURVE RATIO.........................................................................................................................................................................4-37
4.6.7 RTD BIAS.....................................................................................................................................................................................................4-37
4.7 S6 CURRENT ELEMENTS.................................................................................................................................................4-39
4.7.1 SHORT CIRCUIT .........................................................................................................................................................................................4-39
4.7.2 OVERLOAD ALARM....................................................................................................................................................................................4-40
4.7.3 MECHANICAL JAM......................................................................................................................................................................................4-40
4.7.4 UNDERCURRENT.......................................................................................................................................................................................4-41
4.7.5 CURRENT UNBALANCE.............................................................................................................................................................................4-42
4.7.6 GROUND FAULT.........................................................................................................................................................................................4-43
4.7.7 PHASE DIFFERENTIAL...............................................................................................................................................................................4-44
4.8 S7 MOTOR STARTING......................................................................................................................................................4-45
4.8.1 ACCELERATION TIMER.............................................................................................................................................................................4-45
4.8.2 START INHIBIT............................................................................................................................................................................................4-45
4.8.3 JOGGING BLOCK........................................................................................................................................................................................4-46
4.8.4 RESTART BLOCK........................................................................................................................................................................................4-47
4.9 S8 RTD TEMPERATURE...................................................................................................................................................4-48
4.9.1 RTD TYPES .................................................................................................................................................................................................4-48
4.9.2 RTDS 1-6 ......................................................................................................................................................................................................4-49
4.9.3 RTDS 7 - 10 ..................................................................................................................................................................................................4-50
4.9.4 RTD 11 .........................................................................................................................................................................................................4-51
4.9.5 RTD 12 .........................................................................................................................................................................................................4-52
4.9.6 OPEN RTD SENSOR...................................................................................................................................................................................4-53
4.9.7 RTD SHORT/LOW TEMP ............................................................................................................................................................................4-53
4.10 S9 VOLTAGE ELEMENTS ...............................................................................................................................................4-54
4.10.1 UNDERVOLTAGE......................................................................................................................................................................................4-54
4.10.2 OVERVOLTAGE ........................................................................................................................................................................................4-55
4.10.3 PHASE REVERSAL...................................................................................................................................................................................4-55
4.10.4 FREQUENCY.............................................................................................................................................................................................4-56
4.11 S10 POWER ELEMENTS.................................................................................................................................................4-57
4.11.1 POWER MEASUREMENT CONVENTIONS.............................................................................................................................................4-57
4.11.2 POWER FACTOR......................................................................................................................................................................................4-58
4.11.3 REACTIVE POWER...................................................................................................................................................................................4-59
4.11.4 UNDERPOWER.........................................................................................................................................................................................4-60
4.11.5 REVERSE POWER....................................................................................................................................................................................4-61
4.11.6 TORQUE SETUP.......................................................................................................................................................................................4-61
4.11.7 OVER TORQUE SETUP............................................................................................................................................................................4-62
4.12 S11 MONITORING ...........................................................................................................................................................4-62
4.12.1 TRIP COUNTER.........................................................................................................................................................................................4-62

SR469 MANUAL TABLE OF CONTENTS
iii
4.12.2 STARTER FAILURE...................................................................................................................................................................................4-63
4.12.3 CURRENT, kW, kvar, kVA DEMAND.........................................................................................................................................................4-64
4.12.4 PULSE OUTPUT........................................................................................................................................................................................4-66
4.13 S12 ANALOG I/O..............................................................................................................................................................4-67
4.13.1 ANALOG OUTPUTS 1-4............................................................................................................................................................................4-67
4.13.2 ANALOG INPUTS 1-4................................................................................................................................................................................4-69
4.13.3 ANALOG IN DIFF 1-2.................................................................................................................................................................................4-70
4.13.4 ANALOG IN DIFF 3-4.................................................................................................................................................................................4-71
4.14 S13 SR469 TESTING.......................................................................................................................................................4-72
4.14.1 SIMULATION MODE..................................................................................................................................................................................4-72
4.14.2 PRE-FAULT SETUP...................................................................................................................................................................................4-73
4.14.3 FAULT SETUP...........................................................................................................................................................................................4-74
4.14.4 TEST OUTPUT RELAYS...........................................................................................................................................................................4-75
4.14.5 TEST ANALOG OUTPUT...........................................................................................................................................................................4-75
4.14.6 COMM PORT MONITOR...........................................................................................................................................................................4-76
4.14.7 MULTILIN USE ONLY................................................................................................................................................................................4-76
4.15 S14 TWO-SPEED MOTOR...............................................................................................................................................4-77
4.15.1 SPEED2 O/L SETUP ................................................................................................................................................................................4-77
4.15.2 SPEED2 UNDERCURRENT......................................................................................................................................................................4-79
4.15.3 SPEED2 ACCELERATION........................................................................................................................................................................4-79
5. ACTUAL VALUES....................................................................................................................5-1
5.1 OVERVIEW ..........................................................................................................................................................................5-1
5.1.1 ACTUAL VALUES MESSAGES.....................................................................................................................................................................5-1
5.2 A1 STATUS..........................................................................................................................................................................5-2
5.2.1 MOTOR STATUS...........................................................................................................................................................................................5-2
5.2.2 LAST TRIP DATA...........................................................................................................................................................................................5-3
5.2.3 ALARM STATUS............................................................................................................................................................................................5-5
5.2.4 START BLOCKS............................................................................................................................................................................................5-6
5.2.5 DIGITAL INPUTS ...........................................................................................................................................................................................5-7
5.2.6 REAL TIME CLOCK.......................................................................................................................................................................................5-7
5.3 A2 METERING DATA...........................................................................................................................................................5-8
5.3.1 CURRENT METERING..................................................................................................................................................................................5-8
5.3.2 TEMPERATURE ............................................................................................................................................................................................5-9
5.3.3 VOLTAGE METERING.................................................................................................................................................................................5-10
5.3.4 SPEED .........................................................................................................................................................................................................5-10
5.3.5 POWER METERING....................................................................................................................................................................................5-11
5.3.6 TORQUE ALARM MESSAGE......................................................................................................................................................................5-11
5.3.7 DEMAND METERING..................................................................................................................................................................................5-12
5.3.8 ANALOG INPUTS ........................................................................................................................................................................................5-12
5.3.9 PHASORS....................................................................................................................................................................................................5-13
5.4 A3 LEARNED DATA...........................................................................................................................................................5-15
5.4.1 MOTOR STARTING.....................................................................................................................................................................................5-15
5.4.2 AVERAGE MOTOR LOAD...........................................................................................................................................................................5-15
5.4.3 RTD MAXIMUMS .........................................................................................................................................................................................5-16
5.4.4 ANALOG IN MIN/MAX..................................................................................................................................................................................5-17
5.5 A4 MAINTENANCE ............................................................................................................................................................5-18
5.5.1 TRIP COUNTERS........................................................................................................................................................................................5-18
5.5.2 GENERAL COUNTERS...............................................................................................................................................................................5-19
5.5.3 TIMERS........................................................................................................................................................................................................5-19
5.6 A5 EVENT RECORDER....................................................................................................................................................5-20
5.6.1 EVENT01 -EVENT40 ...................................................................................................................................................................................5-20
5.7 A6 PRODUCT INFO ..........................................................................................................................................................5-22
5.7.1 SR469 MODEL INFO...................................................................................................................................................................................5-22
5.7.2 CALIBRATION INFO....................................................................................................................................................................................5-22
5.8 DIAGNOSTICS...................................................................................................................................................................5-23
5.8.1 DIAGNOSTIC MESSAGES FOR OPERATORS .........................................................................................................................................5-23
5.8.2 FLASH MESSAGES.....................................................................................................................................................................................5-24
6. COMMUNICATIONS.................................................................................................................6-1
6.1 ELECTRICAL INTERFACE...................................................................................................................................................6-1
6.1.1 ELECTRICAL INTERFACE............................................................................................................................................................................6-1

TABLE OF CONTENTS SR469 MANUAL
iv
6.2 PROTOCOL..........................................................................................................................................................................6-1
6.2.1 MODBUS RTU PROTOCOL..........................................................................................................................................................................6-1
6.2.2 DATA FRAME FORMAT AND DATA RATE..................................................................................................................................................6-1
6.2.3 DATA PACKET FORMAT..............................................................................................................................................................................6-2
6.2.4 ERROR CHECKING ......................................................................................................................................................................................6-3
6.2.5 TIMING...........................................................................................................................................................................................................6-4
6.3 SUPPORTED MODBUS FUNCTIONS..................................................................................................................................6-4
6.3.1 SUPPORTED MODBUS FUNCTIONS..........................................................................................................................................................6-4
6.3.2 FUNCTION CODES 01 AND 02 - READ RELAY COIL AND DIGITAL INPUT STATUS..............................................................................6-5
6.3.3 FUNCTION CODES 03 AND 04 - READ SETPOINTS AND ACTUAL VALUES..........................................................................................6-7
6.3.4 FUNCTION CODE 05 - EXECUTE OPERATION..........................................................................................................................................6-8
6.3.5 FUNCTION CODE 06 - STORE SINGLE SETPOINT ...................................................................................................................................6-9
6.3.6 FUNCTION CODE 07 - READ DEVICE STATUS .......................................................................................................................................6-10
6.3.7 FUNCTION CODE 08 - LOOPBACK TEST.................................................................................................................................................6-11
6.3.8 FUNCTION CODE 16 - STORE MULTIPLE SETPOINTS...........................................................................................................................6-12
6.3.9 FUNCTION CODE 16 - PERFORMING COMMANDS................................................................................................................................6-13
6.4 ERROR RESPONSES........................................................................................................................................................6-14
6.4.1 ERROR RESPONSES.................................................................................................................................................................................6-14
6.5 MEMORY MAP...................................................................................................................................................................6-15
6.5.1 MEMORY MAP INFORMATION..................................................................................................................................................................6-15
6.5.2 USER DEFINABLE MEMORY MAP AREA .................................................................................................................................................6-15
6.5.3 EVENT RECORDER....................................................................................................................................................................................6-15
6.5.4 WAVEFORM CAPTURE..............................................................................................................................................................................6-15
7. TESTING...................................................................................................................................7-1
7.1 TEST SETUP........................................................................................................................................................................7-1
7.1.1 SECONDARY INJECTION TEST SETUP.....................................................................................................................................................7-1
7.2 HARDWARE FUNCTIONAL TESTING................................................................................................................................7-2
7.2.1 PHASE CURRENT ACCURACY TEST.........................................................................................................................................................7-2
7.2.2 VOLTAGE INPUT ACCURACY TEST...........................................................................................................................................................7-2
7.2.3 GROUND (1A/5A) AND DIFFERENTIAL ACCURACY TEST.......................................................................................................................7-3
7.2.4 MULTILIN 50:0.025 GROUND ACCURACY TEST........................................................................................................................................7-4
7.2.5 RTD ACCURACY TEST.................................................................................................................................................................................7-4
7.2.6 DIGITAL INPUTS AND TRIP COIL SUPERVISION......................................................................................................................................7-6
7.2.7 ANALOG INPUTS AND OUTPUTS ...............................................................................................................................................................7-6
7.2.8 OUTPUT RELAYS..........................................................................................................................................................................................7-8
7.3 ADDITIONAL FUNCTIONAL TESTING................................................................................................................................7-9
7.3.1 OVERLOAD CURVE TEST............................................................................................................................................................................7-9
7.3.2 POWER MEASUREMENT TEST.................................................................................................................................................................7-10
7.3.3 UNBALANCE TEST.....................................................................................................................................................................................7-11
7.3.4 VOLTAGE PHASE REVERSAL TEST.........................................................................................................................................................7-12
7.3.5 SHORT CIRCUIT TEST...............................................................................................................................................................................7-13
8. 469PC PROGRAM....................................................................................................................8-1
8.1 INSTALLATION/UPGRADE..................................................................................................................................................8-1
8.2 CONFIGURATION................................................................................................................................................................8-3
8.3 UPGRADING RELAY FIRMWARE .......................................................................................................................................8-4
8.4 CREATING A NEW SETPOINT FILE....................................................................................................................................8-5
8.5 EDITING A SETPOINT FILE.................................................................................................................................................8-6
8.6 DOWNLOADING A SETPOINT FILE TO THE SR469 ..........................................................................................................8-7
8.7 UPGRADING SETPOINT FILE TO NEW REVISION............................................................................................................8-8
8.8 PRINTING.............................................................................................................................................................................8-9
8.9 TRENDING.........................................................................................................................................................................8-10
8.10 WAVEFORM CAPTURE...................................................................................................................................................8-12
8.11 PHASORS........................................................................................................................................................................8-14
8.12 EVENT RECORDING.......................................................................................................................................................8-15

SR469 MANUAL TABLE OF CONTENTS
v
8.13 TROUBLESHOOTING......................................................................................................................................................8-17
COMMISSIONING SUMMARY.................................................................................................... A-1
2φ
φφ
φCT CONFIGURATION............................................................................................................. B-1
SELECTION OF COOL TIME CONSTANTS............................................................................... C-1
CURRENT TRANSFORMER ....................................................................................................... D-1
INDEX

1. INTRODUCTION OVERVIEW
1-1
1. INTRODUCTION
1.1 OVERVIEW
The SR469 Motor Management Relay is a microprocessor based relay designed for the protection and management of medium and
large horsepower motors and driven equipment. The SR469 is equipped with 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 of Figure 1-1 illustrates the SR469 functionality using the ANSI (American National Standards Institute) device numbers.
Figure 1-1 SINGLE LINE DIAGRAM
Typical applications include:
• Pumps
• Fans
• Compressors
• Mills
• Shredders
• Extruders
• Debarkers
• Refiners
• Cranes
• Conveyors
• Chillers
• Crushers
• Blowers
Some of the protection highlights are detailed here, a complete list may be found in Table 1-1. 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 0.25A may be
detected using the 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 4-20mA analog inputs may be used for tripping and alarming on any transducer
input such as vibration, pressure, flow, etc.

OVERVIEW 1. INTRODUCTION
1-2
Table 1-1 SR469 PROTECTION FEATURES
Fault diagnostics are provided through pretrip data, event record, trace memory, and statistics. Prior to issuing a trip, the SR469 will take
a snapshot of the measured parameters and store them in a record with the cause of the trip. This pre-trip data may be viewed using the
[NEXT] key before the trip is reset, or by accessing the last trip data of Actual Values page 1. The SR469 event recorder will store up to
40 time and date stamped events including the pre-trip data. Each time a trip occurs, the SR469 will store 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 RTDs and analog inputs are also recorded. These features will enable the operator to pinpoint a problem quickly
and with certainty.
Power metering is built into the SR469 as a standard feature. Table 1-2 outlines the metered parameters that are available to the
operator or plant engineer either through the front panel or through the communications ports. The SR469 is equipped with 3 fully
functional and independent communications ports. The front panel RS232 port may be used for SR469 setpoint programming, local
interrogation or control, and upgrading of SR469 firmware. The Computer RS485 port may be connected to a PLC, DCS, or PC based
man-machine interface program. The Auxiliary RS485 port may be used for redundancy or simultaneous interrogation and/or control
from a second PLC, DCS, or PC program. There are also four 4-20 mA transducer outputs that may be assigned to any measured
parameter. The range of these outputs is scaleable.

1. INTRODUCTION ORDER INFORMATION
1-3
Additional features are outlined in Table 1-3.
Table 1-2 METERING
• Voltage
• Current and Amps Demand
• Real Power, kW Demand, kWh power consumption
• Apparent Power and kVA demand
• Reactive Power, kvar Demand, kvar consumption/generation
• Torque
• Frequency
• Power Factor
• RTD
• Speed in RPM with a Key Phasor Input
• User Programmable Analog Inputs
Table 1-3 ADDITIONAL FEATURES
• Drawout Case (for ease of maintenance and testing)
• Reduced Voltage Starting Control for a Single Transition
• Trip Coil Supervision
• Flash memory for easy firmware updates
1.2ORDER INFORMATION
All features of the SR469 are standard, there are no options. The phase CT secondaries must be specified at the time of order. The
control power and analog output range must also be specified at the time of order. The SR469 differential CT inputs are field
programmable for CTs with 1A or 5A secondaries. There are two ground CT inputs, one for the Multilin 50:0.025 core balance CT and
one for a ground CT with a 1A or 5A 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 SR469 SETUP program is provided
with each unit. A metal demo case may be ordered for demonstration or testing purposes. Other accessories are listed below.
469
469
Basic unit
P1
P5
1A phase CT secondaries
5A phase CT secondaries
LO
HI
DC: 25-60 V; AC: 20-48 V @ 48-62 Hz
DC: 90-300 V; AC: 70-265 V @ 48-62 Hz
A1
A20
0-1 mA analog outputs
4-20 mA analog outputs
***
OTHER ACCESSORIES
469PC Program: Provided free with each relay
DEMO: Metal Carry Case in which SR469 unit may be mounted
SR 19-1 PANEL: Single cutout 19" panel
SR 19-2 PANEL : Dual cutout 19" 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.
SR469 1G
GG
G" Collar: For shallow switchgear, reduces the depth of the relay by 1 3/8"
SR469 3" Collar: For shallow switchgear, reduces the depth of the relay by 3"
Optional Mounting Kit: Additional mounting support 1819-0030
Figure 1-2 SR469 ORDER CODE