GE Masoneilan 469 Series User manual

806766A5.CDR
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
469 Motor Management Relay®
PROGRAM PORT
SETPOINT
7 89
456
12 3
.0
HELP
MESSAGE
VALUE
ACTUAL
ESCAPE
ENTER
RESET
NEXT
RESET
POSSIBLE
COMPUTER RS485
AUXILIARY RS485
LOCKOUT
469 STATUS MOTOR STATUS OUTPUT RELAYS
OVERLOAD PICKUP
UNBALANCE PICKUP
GROUND PICKUP
R
E
G
I
S
T
E
R
E
D
469
MOTOR MANAGEMENT RELAY®
Instruction Manual
469 Firmware Revision: 30E281.000
469PC Software Revision: 2.9x
Manual P/N: 1601-0057-DA (GEK-106289B)
Copyright © 2002 GE Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEindustrial.com/multilin Manufactured under an
ISO9001 Registered system.
g
GE Industrial Systems

GE Multilin 469 Motor Management Relay i
TABLE OF CONTENTS
1. INTRODUCTION 1.1 OVERVIEW
1.1.1 Description ......................................................................................................... 1-1
1.1.2 Order Information...............................................................................................1-3
1.2 SPECIFICATIONS
1.2.1 469 Specifications..............................................................................................1-4
2. INSTALLATION 2.1 MECHANICAL
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............................................................................................. 2-6
2.2 ELECTRICAL
2.2.1 Typical Wiring Diagram...................................................................................... 2-8
2.2.2 Control Power .................................................................................................... 2-9
2.2.3 Current Inputs .................................................................................................. 2-10
2.2.4 Voltage Inputs..................................................................................................2-13
2.2.5 Digital Inputs .................................................................................................... 2-13
2.2.6 Analog Inputs ................................................................................................... 2-14
2.2.7 Analog Outputs ................................................................................................ 2-14
2.2.8 RTD Sensor Connections ................................................................................2-15
2.2.9 Output Relays .................................................................................................. 2-17
2.2.10 Drawout Indicator............................................................................................. 2-18
2.2.11 RS485 Communications Ports......................................................................... 2-18
2.2.12 Dielectric Strength............................................................................................ 2-19
2.2.13 Two-Speed Motor Wiring ................................................................................. 2-20
3. USER INTERFACES 3.1 FACEPLATE INTERFACE
3.1.1 Display ............................................................................................................... 3-1
3.1.2 LED Indicators....................................................................................................3-1
3.1.3 RS232 Program Port.......................................................................................... 3-2
3.1.4 Keypad............................................................................................................... 3-2
3.1.5 Setpoint Entry..................................................................................................... 3-3
3.2 469PC SOFTWARE INTERFACE
3.2.1 Requirements..................................................................................................... 3-4
3.2.2 Installation/Upgrade ........................................................................................... 3-5
3.2.3 Startup and Communications Configuration ......................................................3-7
3.2.4 Using 469PC...................................................................................................... 3-8
3.2.5 Trending........................................................................................................... 3-12
3.2.6 Waveform Capture........................................................................................... 3-14
3.2.7 Phasors............................................................................................................ 3-15
3.2.8 Event Records.................................................................................................. 3-15
3.2.9 Troubleshooting ............................................................................................... 3-16
4. SETPOINTS 4.1 OVERVIEW
4.1.1 Setpoint Message Map ......................................................................................4-1
4.1.2 Trips, Alarms, and Blocks .................................................................................. 4-5
4.1.3 Relay Assignment Practices ..............................................................................4-5
4.2 S1 469 SETUP
4.2.1 Passcode ...........................................................................................................4-6
4.2.2 Preferences........................................................................................................4-7
4.2.3 Serial Ports......................................................................................................... 4-8
4.2.4 Real Time Clock.................................................................................................4-8
4.2.5 Default Messages ..............................................................................................4-9
4.2.6 Message Scratchpad .......................................................................................4-10
4.2.7 Clear Data........................................................................................................ 4-10

ii 469 Motor Management Relay GE Multilin
TABLE OF CONTENTS
4.2.8 Installation.........................................................................................................4-11
4.3 S2 SYSTEM SETUP
4.3.1 Current Sensing................................................................................................4-12
4.3.2 Voltage Sensing................................................................................................4-13
4.3.3 Power System...................................................................................................4-14
4.3.4 Serial Communication Control..........................................................................4-14
4.3.5 Reduced Voltage ..............................................................................................4-15
4.4 S3 DIGITAL INPUTS
4.4.1 Description........................................................................................................4-17
4.4.2 Starter Status....................................................................................................4-17
4.4.3 Assignable Inputs 1 to 4 ...................................................................................4-18
4.5 S4 OUTPUT RELAYS
4.5.1 Description........................................................................................................4-26
4.5.2 Relay Reset Mode ............................................................................................4-26
4.5.3 Force Output Relay...........................................................................................4-27
4.6 S5 THERMAL MODEL
4.6.1 Motor Thermal Limits........................................................................................4-28
4.6.2 Thermal Model..................................................................................................4-29
4.6.3 Overload Curve Setup ......................................................................................4-30
4.7 S6 CURRENT ELEMENTS
4.7.1 Short Circuit Trip...............................................................................................4-42
4.7.2 Overload Alarm.................................................................................................4-43
4.7.3 Mechanical Jam................................................................................................4-43
4.7.4 Undercurrent.....................................................................................................4-44
4.7.5 Current Unbalance............................................................................................4-45
4.7.6 Ground Fault.....................................................................................................4-46
4.7.7 Phase Differential .............................................................................................4-47
4.8 S7 MOTOR STARTING
4.8.1 Acceleration Timer............................................................................................4-48
4.8.2 Start Inhibit........................................................................................................4-48
4.8.3 Jogging Block ...................................................................................................4-49
4.8.4 Restart Block ....................................................................................................4-50
4.9 S8 RTD TEMPERATURE
4.9.1 RTD Types........................................................................................................4-51
4.9.2 RTDs 1 to 6.......................................................................................................4-52
4.9.3 RTDs 7 to 10.....................................................................................................4-53
4.9.4 RTD 11 .............................................................................................................4-54
4.9.5 RTD 12 .............................................................................................................4-55
4.9.6 Open RTD Sensor............................................................................................4-56
4.9.7 RTD Short/Low Temp.......................................................................................4-56
4.10 S9 VOLTAGE ELEMENTS
4.10.1 Undervoltage ....................................................................................................4-57
4.10.2 Overvoltage ......................................................................................................4-58
4.10.3 Phase Reversal ................................................................................................4-58
4.10.4 Frequency.........................................................................................................4-59
4.11 S10 POWER ELEMENTS
4.11.1 Power Measurement Conventions....................................................................4-60
4.11.2 Power Factor ....................................................................................................4-61
4.11.3 Reactive Power.................................................................................................4-62
4.11.4 Underpower ......................................................................................................4-63
4.11.5 Reverse Power .................................................................................................4-64
4.11.6 Torque Setup....................................................................................................4-65
4.11.7 Overtorque Setup .............................................................................................4-65
4.12 S11 MONITORING
4.12.1 Trip Counter......................................................................................................4-66
4.12.2 Starter Failure...................................................................................................4-67
4.12.3 Current, KW, Kvar, and KVA Demand..............................................................4-68
4.12.4 Pulse Output.....................................................................................................4-69
4.13 S12 ANALOG I/O
4.13.1 Analog Outputs 1 to 4.......................................................................................4-71
4.13.2 Analog Inputs 1 to 4..........................................................................................4-73
4.13.3 Analog In Diff 1-2..............................................................................................4-75

GE Multilin 469 Motor Management Relay iii
TABLE OF CONTENTS
4.13.4 Analog In Diff 3-4 .............................................................................................4-76
4.14 S13 469 TESTING
4.14.1 Simulation Mode .............................................................................................. 4-77
4.14.2 Pre-Fault Setup................................................................................................ 4-78
4.14.3 Fault Setup....................................................................................................... 4-79
4.14.4 Test Output Relays ..........................................................................................4-80
4.14.5 Test Analog Output .......................................................................................... 4-80
4.14.6 Comm Port Monitor..........................................................................................4-81
4.14.7 GEPM Use Only............................................................................................... 4-81
4.15 S14 TWO-SPEED MOTOR
4.15.1 Description ....................................................................................................... 4-82
4.15.2 Speed 2 O/L Setup...........................................................................................4-82
4.15.3 Speed 2 Undercurrent......................................................................................4-84
4.15.4 Speed 2 Acceleration.......................................................................................4-84
5. ACTUAL VALUES 5.1 OVERVIEW
5.1.1 Actual Values Message Map..............................................................................5-1
5.1.2 Description ......................................................................................................... 5-2
5.2 A1 STATUS
5.2.1 Motor Status....................................................................................................... 5-3
5.2.2 Last Trip Data..................................................................................................... 5-3
5.2.3 Alarm Status....................................................................................................... 5-5
5.2.4 Start Blocks........................................................................................................ 5-7
5.2.5 Digital Inputs ...................................................................................................... 5-8
5.2.6 Real Time Clock.................................................................................................5-8
5.3 A2 METERING DATA
5.3.1 Current Metering................................................................................................ 5-9
5.3.2 Temperature..................................................................................................... 5-10
5.3.3 Voltage Metering..............................................................................................5-11
5.3.4 Speed...............................................................................................................5-11
5.3.5 Power Metering................................................................................................5-12
5.3.6 Demand Metering............................................................................................. 5-13
5.3.7 Analog Inputs ................................................................................................... 5-13
5.3.8 Phasors............................................................................................................ 5-14
5.4 A3 LEARNED DATA
5.4.1 Motor Starting...................................................................................................5-16
5.4.2 Average Motor Load......................................................................................... 5-16
5.4.3 RTD Maximums ............................................................................................... 5-17
5.4.4 Analog In Min/Max ........................................................................................... 5-18
5.5 A4 MAINTENANCE
5.5.1 Trip Counters ................................................................................................... 5-19
5.5.2 General Counters.............................................................................................5-20
5.5.3 Timers .............................................................................................................. 5-21
5.6 A5 EVENT RECORDER
5.6.1 Event 01 to Event 40........................................................................................ 5-22
5.7 A6 PRODUCT INFO
5.7.1 469 Model Information .....................................................................................5-24
5.7.2 Calibration Information..................................................................................... 5-24
5.8 DIAGNOSTICS
5.8.1 Diagnostic Messages....................................................................................... 5-25
5.8.2 Flash Messages............................................................................................... 5-26
6. COMMUNICATIONS 6.1 MODBUS PROTOCOL
6.1.1 Electrical Interface.............................................................................................. 6-1
6.1.2 Modbus RTU Protocol........................................................................................6-1
6.1.3 Data Frame Format and Data Rate.................................................................... 6-1
6.1.4 Data Packet Format ...........................................................................................6-1

iv 469 Motor Management Relay GE Multilin
TABLE OF CONTENTS
6.1.5 CRC-16 Algorithm...............................................................................................6-2
6.1.6 Timing.................................................................................................................6-2
6.2 MODBUS FUNCTIONS
6.2.1 Supported Functions...........................................................................................6-3
6.2.2 Function Codes 01/02: Read Relay Coil / Digital Input Status ...........................6-3
6.2.3 Function Codes 03/04: Read Setpoints / Actual Values.....................................6-5
6.2.4 Function Code 05: Execute Operation................................................................6-6
6.2.5 Function Code 06: Store Single Setpoint............................................................6-6
6.2.6 Function Code 07: Read Device Status..............................................................6-7
6.2.7 Function Code 08: Loopback Test......................................................................6-7
6.2.8 Function Code 16: Store Multiple Setpoints .......................................................6-8
6.2.9 Function Code 16: Performing Commands ........................................................6-9
6.2.10 Error Responses.................................................................................................6-9
6.3 MEMORY MAP
6.3.1 Memory Map Information..................................................................................6-10
6.3.2 User-Definable Memory Map Area ...................................................................6-10
6.3.3 Event Recorder.................................................................................................6-10
6.3.4 Waveform Capture............................................................................................6-11
6.3.5 469 Memory Map..............................................................................................6-12
6.3.6 Memory Map Format Codes.............................................................................6-46
7. TESTING 7.1 OVERVIEW
7.1.1 Test Setup ..........................................................................................................7-1
7.2 HARDWARE FUNCTIONAL TESTING
7.2.1 Phase Current Accuracy Test.............................................................................7-2
7.2.2 Voltage Input Accuracy Test...............................................................................7-2
7.2.3 Ground and Differential Accuracy Test...............................................................7-3
7.2.4 GE 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 .................................................................................7-7
7.2.8 Output Relays.....................................................................................................7-8
7.3 ADDITIONAL FUNCTIONAL TESTING
7.3.1 Overload Curve Test...........................................................................................7-9
7.3.2 Power Measurement Test.................................................................................7-10
7.3.3 Unbalance Test.................................................................................................7-10
7.3.4 Voltage Phase Reversal Test ...........................................................................7-12
7.3.5 Short Circuit Test..............................................................................................7-12
A. APPLICATION NOTES A.1 TWO-PHASE CT CONFIGURATION
A.1.1 Description.........................................................................................................A-1
A.2 COOL TIME CONSTANTS
A.2.1 Selection of Cool Time Constants .....................................................................A-3
A.2.2 Example.............................................................................................................A-3
A.3 CURRENT TRANSFORMERS
A.3.1 Ground Fault CTs for 50:0.025 A CT.................................................................A-4
A.3.2 Ground Fault CTs for 5 A Secondary CT...........................................................A-5
A.3.3 Phase CTs......................................................................................................... A-6
B. MISCELLANEOUS B.1 EU DECLARATION OF CONFORMITY
B.2 WARRANTY INFORMATION
B.2.1 Warranty ............................................................................................................B-2

GE Multilin 469 Motor Management Relay 1-1
1 INTRODUCTION 1.1 OVERVIEW
1
1 INTRODUCTION 1.1OVERVIEW 1.1.1 DESCRIPTION
The 469 Motor Management Relay is a microprocessor based relay designed for the protection and management of
medium and large horsepower motors and driven equipment. The 469 is equipped with six 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.
Figure 1–1: SINGLE LINE DIAGRAM
Typical applications include:
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,
•Pumps •Fans •Compressors
• Mills • Shredders • Extruders
• Debarkers • Refiners • Cranes
• Conveyors • Chillers • Crushers
•Blowers

1-2 469 Motor Management Relay GE Multilin
1.1 OVERVIEW 1 INTRODUCTION
1when 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 Power Management 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 quanti-
ties. Four 4 to 20 mA analog inputs may be used for tripping and alarming on any transducer input such as vibration, pres-
sure, flow, etc.
Figure 1–2: PROTECTION FEATURES
Fault diagnostics are provided through pretrip data, event record, trace memory, and statistics. Prior to issuing a trip, the
469 takes a snapshot of the measured parameters and stores them with the cause of the trip. This pre-trip data may be
viewed using the key before the trip is reset, or by accessing the A1 STATUS Õ× LAST TRIP DATA actual values. The
469 event recorder stores up to 40 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 RTDs and analog inputs 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.
51 Overload
86 Overload Lockout
66 Starts/Hour & Time Between Starts
Restart Block (Anti-Backspin Timer)
50 Short Circuit & Short Circuit Backup
Mechanical Jam
37
32
Undercurrent/Underpower
Reverse Power
46 Current Unbalance
50G/51G Ground Fault & Ground Fault Backup
87 Differential
Acceleration
49 Stator RTD
38 Bearing RTD
Other RTD & Ambient RTD
Open RTD Alarm
Short/Low RTD
27/59 Undervoltage/Overvoltage
47 Phase Reversal
81 Frequency
Reactive Power
55/78 Power Factor
Analog Input
Demand Alarm: A kW kvar kVA
SR469 Self-Test, Service
Trip Coil Supervision
Welded Contactor
Breaker Failure
Remote Switch
14 Speed Switch & Tachometer Trip
Load Shed Switch
Pressure Switch
Vibration Switch
19 Reduced Voltage Start
48
Over Torque
Remote Start/Stop
PROCTLA5.CDR
Incomplete Sequence (Reduced Voltage Start)
Forced Relay Operation
NEXT

GE Multilin 469 Motor Management Relay 1-3
1 INTRODUCTION 1.1 OVERVIEW
1
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 4 to 20 mA or 0 to 1 mA (as specified with order) transducer outputs that may be assigned to any mea-
sured parameter. The range of these outputs is scalable. Additional features are outlined in the table below.
1.1.2 ORDER 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 second-
aries. There are two ground CT inputs, one for the GE Power Management 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 con-
figuration. The output relays are always non-failsafe with the exception of the service relay. The 469PC software is provided
with each unit. A metal demo case may be ordered for demonstration or testing purposes.
For example, the 469-P1-LO-A20 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, and 4 to 20 mA Analog Outputs. Other accessories are shown below:
•469PC Software: Provided free with each relay
•DEMO: Metal Carry Case in which 469 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.
•469 1" Collar: For shallow switchgear, reduces the depth of the relay by 1 #3/8"
•469 3" Collar: For shallow switchgear, reduces the depth of the relay by 3"
•Optional Mounting Kit: Additional mounting support 1819-0030
METERING ADDITIONAL FEATURES
Voltage Drawout case (for ease of maintenance/testing)
Current and amps demand Reduced voltage starting control for single transition
Real power, kW demand, kW power consumption Trip coil supervision
Apparent power and kVA demand Flash memory for easy firmware updates
Reactive power, kvar demand, kvar consumption/generation
Frequency
Power Factor
RTD
Speed in RPM with a key phasor input
User-programmable analog inputs
Table 1–1: 469 ORDER CODES
469 —
S
—
S
—
S
469 ||| 469 Motor Management Relay Base Unit
P1 | | Current Transformer Inputs: 1 A Phase CT Secondaries
P5 | | Current Transformer Inputs: 5 A Phase CT Secondaries
LO |25 to 60 V DC; 20 to 48 V AC at 48 to 62 Hz
HI |90 to 300 V DC; 70 to 265 V AC at 48 to 62 Hz
A1 0 to 1 mA Analog Outputs
A20 4 to 20 mA Analog Outputs

1-4 469 Motor Management Relay GE Multilin
1.2 SPECIFICATIONS 1 INTRODUCTION
11.2SPECIFICATIONS 1.2.1 469 SPECIFICATIONS
POWER SUPPLY
Options: LO / HI (must be specified with order)
LO Range: DC: 20 to 60 V DC
AC: 20 to 48 VAC at 48 to 62 Hz
Hi Range: DC: 90 to 300 V DC
AC: 70 to 265 V AC at 48 to 62 Hz
Power: 45 VA (max), 25 VA typical
Proper operation time without supply voltage: 30 ms
FUSE (HI and LO VOLT)
Current rating: 2.50 A
Type: 5 ×20 mm Slow-Blow Littlefuse,
High Breaking Capacity
Model Number: 21502.5
An external fuse must be used if the supply voltage
exceeds 250 V.
PHASE CURRENT INPUTS
CT Primary: 1 to 5000 A
CT Secondary: 1 A or 5 A (must be specified with order)
Burden: Less than 0.2 VA at rated load
Conversion Range: 0.05 to 20 ×CT
Accuracy: at < 2 ×CT: ± 0.5% of 2 ×CT
at ≥2 ×CT: ± 1% of 20 ×CT
CT Withstand: 1 second at 80 ×rated current
2 seconds at 40 ×rated current
continuous at 3 ×rated current
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 at 25 A
Conversion Range: 0.02 to 1 ×CT primary Amps
Accuracy: ± 0.5% of 1 ×CT for 5 A
± 0.5% of 5 ×CT for 1 A
± 0.125 A for 50:0.025
CT Withstand: 1 second at 80 ×rated current
2 seconds at 40 ×rated current
continuous at 3 ×rated current
DIFFERENTIAL PHASE CURRENT INPUTS
CT Primary: 1 to 5000A
CT Secondary: 1 A or 5 A (setpoint)
Burden: Less than 0.2 VA at rated load
Conversion Range: 0.02 to 1 ×CT
Accuracy: ±0.5% of 1 ×CT for 5 A
±0.5% of 5 ×CT for 1 A
CT Withstand: 1 second at 80 ×rated current
2 seconds at 40 ×rated current
continuous at 3 ×rated current
VOLTAGE INPUTS
VT Ratio: 1.00 to 150.00:1 in steps of 0.01
VT Secondary: 273 V AC (full scale)
Conversion Range: 0.05 to 1.00 ×full scale
Accuracy: ±0.5% of full scale
Max. Continuous: 280 V AC
Burden: > 500 kΩ
DIGITAL INPUTS
Inputs: 9 opto-isolated inputs
External Switch: dry contact < 400 Ω, or open collector
NPN transistor from sensor; 6 mA sink-
ing from internal 4 KΩpull-up at 24 V DC
with Vce < 4 V DC
469 Sensor Supply: +24 V DC at 20 mA maximum
RTD INPUTS
3 wire RTD Types: 100 ΩPlatinum (DIN.43760), 100 Ω
Nickel, 120 ΩNickel, 10 ΩCopper
RTD Sensing Current: 5mA
Isolation: 36 Vpk
(isolated with analog inputs and outputs)
Range: –50 to +250°C
Accuracy: ±2°C
Lead Resistance: 25 ΩMax per lead for Pt and Ni type
3ΩMax 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
ANALOG CURRENT INPUTS
Current 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 maximum
Response Time: ≤ 100 ms
COMMUNICATIONS PORTS
RS232 Port: 1, Front Panel, non-isolated
RS485 Ports: 2, Isolated together at 36 Vpk
Baud Rates: RS485: 300, 1200, 2400, 4800, 9600,
19200
RS232: 9600
Parity: None, Odd, Even
Protocol: Modbus®RTU / half duplex
NOTE