GE LM10 User manual

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
GE Consumer & Industrial
Multilin
GE Multilin's Quality
Management System is
registered to ISO9001:2000
QMI # 005094
UL # A3775
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ISO9001:2000
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LM10 revision: 1.7x
GE publication code: GEK-106642E
GE Multilin part number: 1601-0165-A6
Copyright © 2008 GE Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEmultilin.com
*1601-0165-A6*
LM10 Motor Protection System
Instruction Manual

© 2008 GE Multilin Incorporated. All rights reserved.
GE Multilin LM10 Motor Protection System instruction manual for revision 1.70.
LM10 Motor Protection System, is a registered trademark of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part numbers contained in this manual are subject to change without notice, and should
therefore be verified by GE Multilin before ordering.
Part number: 1601-0165-A6 (March 2008)

1TABLE OF CONTENTS
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–I
Table of Contents
1: INTRODUCTION DESCRIPTION .....................................................................................................................1-1
THE LM10 RELAY ............................................................................................................... 1-1
OVERVIEW ...........................................................................................................................1-2
FEATURES ............................................................................................................................. 1-2
CURRENT AND VOLTAGE INPUTS ...................................................................................... 1-2
RELAY OUTPUTS .................................................................................................................. 1-2
POWER SUPPLY ................................................................................................................... 1-3
BLOCK DIAGRAM ................................................................................................................. 1-3
FEATURES ............................................................................................................................1-4
PROGRAMMING AND DISPLAY UNIT ................................................................................. 1-4
LED INDICATORS ................................................................................................................. 1-4
SWITCHES ............................................................................................................................. 1-4
ORDERING ..........................................................................................................................1-6
ORDER CODES ..................................................................................................................... 1-6
SPECIFICATIONS ................................................................................................................1-7
PROTECTION ELEMENTS ...................................................................................................... 1-7
METERING ............................................................................................................................. 1-7
CONTROL FUNCTIONS ........................................................................................................ 1-8
INPUTS .................................................................................................................................. 1-8
CT DIMENSIONS .................................................................................................................. 1-10
OUTPUTS ...............................................................................................................................1-10
COMMUNICATIONS .............................................................................................................. 1-10
ENVIRONMENTAL ................................................................................................................. 1-11
APPROVALS/CERTIFICATION ............................................................................................... 1-11
2: INSTALLATION WIRING ................................................................................................................................2-13
DEVICENET ........................................................................................................................... 2-13
RS232 PORT ....................................................................................................................... 2-13
CONTROL TERMINALS ......................................................................................................... 2-14
SENSOR PACK INPUT .......................................................................................................... 2-15
WIRING DIAGRAM ............................................................................................................... 2-15
MOUNTING .........................................................................................................................2-17
LM10 MOUNTING .............................................................................................................. 2-17
PDU DOOR MOUNT ........................................................................................................... 2-18
3: INTERFACE PDU OPERATIONS .............................................................................................................3-19
LIQUID CRYSTAL DISPLAY ................................................................................................... 3-19
LEDS..................................................................................................................................... 3-19
KEYPAD ................................................................................................................................. 3-19
PDU SCREENS AND MENUS ............................................................................................3-21
MAIN STARTUP SCREEN ..................................................................................................... 3-21
HISTORY RECORD AND STATUS SCREENS ........................................................................ 3-21
CONFIGURATION MENU ..................................................................................................... 3-21
ENERVISTA LM10 SOFTWARE ........................................................................................3-23
DESCRIPTION ........................................................................................................................ 3-23
FUNCTIONAL DETAILS ......................................................................................................... 3-23

1–II LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS
4: FUNCTIONALITY OVERCURRENT FAULT CONDITIONS ............................................................................4-25
DESCRIPTIONS ...................................................................................................................... 4-25
TRIP CURVES EXAMPLE ....................................................................................................... 4-27
CONFIGURATION SETTINGS ...........................................................................................4-29
OVERVIEW ............................................................................................................................ 4-29
MAIN MENU ......................................................................................................................... 4-30
LANGUAGE ............................................................................................................................ 4-31
CTSAND CPTS.................................................................................................................... 4-31
STARTER TYPE ......................................................................................................................4-32
RUN 1 AND RUN 2 SETUP ................................................................................................. 4-32
TIME DELAYS ........................................................................................................................ 4-34
OTHER SETTINGS ................................................................................................................. 4-34
AUXILIARY RELAY FAULTS .................................................................................................. 4-36
PASSCODE AND LOGIN ....................................................................................................... 4-37
RUN OPERATIONS ................................................................................................................ 4-38
FACTORY DEFAULT .............................................................................................................. 4-38
STATUS VALUES .................................................................................................................4-39
MAIN MENU ......................................................................................................................... 4-39
HISTORY VALUES ...............................................................................................................4-41
LAST TRIP DATA ................................................................................................................... 4-41
MOTOR START/STOP LOGIC ...........................................................................................4-42
5: COMMUNICATIONS DEVICENET OPERATIONS ................................................................................................5-45
DESCRIPTION ........................................................................................................................ 5-45
POLL DATA ........................................................................................................................... 5-45
IDENTITY OBJECT .................................................................................................................. 5-47
MESSAGE ROUTER ............................................................................................................... 5-47
DEVICENET OBJECT ............................................................................................................ 5-47
ASSEMBLY OBJECT .............................................................................................................. 5-48
CONNECTION OBJECT ......................................................................................................... 5-52
ACK HANDLER OBJECT ..................................................................................................... 5-54
OVERLOAD OBJECT ............................................................................................................. 5-54
EXTENSION OBJECT ............................................................................................................. 5-55
DATA FORMATS ................................................................................................................... 5-57
SPECIAL APPLICATION ......................................................................................................... 5-61
SERIAL PORT .......................................................................................................................5-63
DESCRIPTION ........................................................................................................................ 5-63
6: MISCELLANEOUS REVISION HISTORY ...........................................................................................................6-65
RELEASE DATES ................................................................................................................... 6-65
CHANGES TO THE MANUAL ................................................................................................ 6-65
WARRANTY .........................................................................................................................6-67
GE MULTILIN WARRANTY .................................................................................................. 6-67
APPENDIX DEVICENET OVERVIEW ....................................................................................................A-1
DESCRIPTION ........................................................................................................................ A-1
CONTROLLER AREA NETWORK (CAN) .............................................................................. A-2
DEVICENET OPERATIONS ................................................................................................... A-2
EXPLICIT MESSAGING AND INPUT/OUTPUT (I/O) MESSAGING ..................................... A-3
PRE-DEFINED MASTER/SLAVE CONNECTION SET ...........................................................A-3

1TABLE OF CONTENTS
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–III
DEVICENET FEATURES ........................................................................................................ A-3
MAXIMUM CABLE LENGTHS FOR DEVICENET ................................................................. A-3
DEVICENET SPECIFICATION HIGHLIGHTS ......................................................................... A-4
LM10 AND GE FANUC 90-30 WITH DEVICENET™ .....................................................A-6
OVERVIEW ............................................................................................................................ A-6
GE FANUC 90-30 PLC HARDWARE ............................................................................... A-6
NETWORK CONFIGURATION ............................................................................................... A-6
CONFIGURATION PROCEDURE ........................................................................................... A-6
POLLING INPUT/OUTPUT CONNECTION ........................................................................... A-7
COS (CHANGE OF STATE) INPUT/OUTPUT CONNECTION ............................................. A-10
CYCLIC INPUT/OUTPUT CONNECTION .............................................................................. A-10
EXPLICIT MESSAGING .......................................................................................................... A-11
LM10 AND ALLEN-BRADLEY SLC500 VIA DEVICENET™ ..........................................A-17
DESCRIPTION ........................................................................................................................ A-17
SYSTEM SETUP ..................................................................................................................... A-17
INITIAL STEPS ....................................................................................................................... A-17
SETTING UPTHE DEVICENET NETWORK ......................................................................... A-17
CHANGING THE MODE OF OPERATION ............................................................................ A-18
CONFIGURING THE SLAVE DEVICE .................................................................................... A-19
CONTROL AND MONITORING OF THE LM10 .................................................................. A-20
EXPLICIT MESSAGING WITH THE LM10 RELAY ............................................................... A-21
DATA TABLE LAYOUT .......................................................................................................... A-22
LADDER LOGIC ..................................................................................................................... A-23
INDEX

1–IV LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
TABLE OF CONTENTS

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
LM10 Motor Protection System
Chapter 1: Introduction
GE Consumer & Industrial
Multilin
Introduction
1.1 Description
1.1.1 The LM10 Relay
The GE Multilin LM10 Motor Protection System is a modular device designed to protect
motors from various fault conditions. This device interfaces with a DeviceNet network. The
network will monitor and control the relay status and functions. The relay also has the
capability of operating in a standalone mode. Configuration can be accomplished via DIP
switches on the front of the relay.
Additionally, the relay has an interface port to communicate to the LM10 programming
and display unit (PDU). The PDU is a self-contained device consisting of a membrane switch
keypad, a liquid crystal display (LCD), and control electronics for communication with the
relay. This unit provides a method of configuring and monitoring the LM10. The PDU
incorporates an RS232 interface with a proprietary communications protocol.
DeviceNet is a registered trademark of Open DeviceNet Vendor's Association (ODVA).

1–2 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
1.2 Overview
1.2.1 Features
The LM10 Motor Protection System is a microprocessor-based unit. It takes a ‘snapshot’
image of the three phases of current, one phase of voltage, and ground. The data is then
applied to the algorithms and compared to the device's configuration information. Based
on the result of the comparison, the relay may trip one or more of the on-board control
relays. When applicable, indicators will be illuminated to show the status of the device.
Additionally, up to ten trip events will be stored in non-volatile memory.
The LM10 auxiliary communications port to the PDU is an RS232 interface using a
standard four-pin RJ11 style cable. This port will allow the PDU to obtain and display any of
the real-world data that is contained in the relay as well as to configure the relay.
The LM10 Motor Protection System supports the DeviceNet protocol and can be interfaced
with the PLC DeviceNet mastercard or DCS Scanner card. It supports Polled, Change of
State (COS), Cyclic I/O Messaging, and Explicit Messaging.
1.2.2 Current and Voltage Inputs
The relay has inputs for two sets of three-phase current transformers (CTs) and one ground
CT. One set will allow for custom 27 A and 90 A CT sensor packs to be connected; the other
will allow for 75 to 800:5 A ratio CTs. Dual speed motors will require two separate CTs
connected in parallel.
A 100:1 A core-balance CT or 20 A ground fault sensor pack can be connected to the
ground CT terminals for ground current measurement.
Provisions have been made to support various CTs for the three-phase measurements.
Voltage input from the control power transformer (CPT) is conditioned and measured by
the analog-to-digital converter to determine supply voltage. This signal, in conjunction
with the current, is used to calculate power and power factor.
1.2.3 Relay Outputs
The LM10 Motor Protection System contains 4 on-board Form-C relays with NEMA C150
pilot duty ratings. Two relays should be used to control the coils of motor contactor and
one to annunciate ground fault status. An additional programmable relay is available for
fault status indications.
The two control relays are labeled “RUN 1” and “RUN 2”. These relays are enabled on
command from the control logic. If the LM10 detects a fault condition the relays will be de-
energize, causing the motors to shut down.
The ground fault relay is energized on detection of a ground fault. Upon correction of the
ground fault condition, the relay will be de-energized. The output contact can be used to
trip a breaker or annunciate to other devices.
The programmable trip relay is energized when the programmed algorithm conditions
have been met and can annunciate out to other devices.

CHAPTER 1: INTRODUCTION OVERVIEW
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
1.2.4 Power Supply
The LM10 Motor Protection System has an on-board power supply with a fuse that
converts the AC input to the levels necessary to operate this device. The operating range is
96 to 140 V AC, nominal 120 V control power (80% to 117%). The supply has
programmable auto-restart capability of up to 4 seconds. This also supplies necessary
power to the PDU at a TTL.
For correct measurement of power and power factor, the control power must be
connected across phase A and phase B of the three-phase power supply.
1.2.5 Block Diagram
A single line diagram for the LM10 Motor Protection System is shown below.
FIGURE 1–1: Functional Block Diagram

1–4 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
FEATURES CHAPTER 1: INTRODUCTION
1.3 Features
1.3.1 Programming and Display Unit
The main task of the programming and display unit (PDU) is to provide status information
to a local user. The PDU can display the requested parameter(s) on the LCD in either English
or Spanish. Additionally, the PDU can be used to configure the LM10 via the RS232 serial
communications port.
1.3.2 LED Indicators
The LM10 has five (5) LEDs on the front panel. They function as follows:
•Module Status (MS): This two-colored LED is used for the DeviceNet module status. Its
function is defined in the DeviceNet specification.
•Network status (NS): This two-colored LED is used for the DeviceNet network status.
Its function is defined in the DeviceNet specification.
•Overcurrent (OC): This red LED is illuminated when the relay detects an overcurrent
condition in one or more of the power phases.
•Ground Fault (GF): This red LED is illuminated when the relay detects a ground fault
condition.
•Current Unbalance (CUB): This red LED is illuminated when the relay detects a current
unbalance between the power phases.
1.3.3 Switches
The following switches are located on the front panel of the LM10. Changes to switch
settings will not take effect until power is cycled (on-off).
All other relay features (e.g., the CT sensor pack) can only be programmed via DeviceNet or
the RS232 configuration port.
•MAC ID: Two rotary DIP switches are used to set the DeviceNet MAC ID. Each unit on
the DeviceNet network requires a unique MAC ID. The valid ID range is from 0 to 63,
with a factory default of 0. Cycle power after any switch changes.
LED State Description
Off No power
Green Device operational
Red Unrecoverable fault
LED State Description
Off No power / not online
Flashing green Online, not connected
Green Link OK, online, connected
Flashing red Connection timeout
Red Critical link failure

CHAPTER 1: INTRODUCTION FEATURES
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5
•Baud rate: This two-position DIP switch is used to select the DeviceNet baud rate. The
valid rates are 125K, 250K and 500K bits per second. The DIP switch is defaulted to
125K baud rate when shipped.
Changes to switch settings will not take effect until the next power cycle.
•Trip Class (TC): NEMA overload trip class is selected using a rotary DIP switch. Valid
settings are Class 10, 15, 20, or 30. To set the trip class, align the screwdriver slot with
the desired value. Do not use the triangle marker on the DIP switch. A screwdriver with
a nominal blade width of 0.094 to 0.175 inches should be used. Smaller blades could
allow the switch to be set in an invalid position.
Changes to switch settings will not take effect until power is cycled.
FIGURE 1–2: LM10 Features
Baud Rate DIP Switch Position
125 kbps down - down
250 kbps up - down
500 kbps up - up
849713A3.CDR
Display
Liquid crystal display: four lines
of 16 characters per line.
Status
The status sub-menu can display
current, motor status, Run 1 and
Run 2 data, faults, MAC ID, baud
rate, and overload class.
Reset
The relay can be reset from the
PDU, pushbutton, or the LAN.
Mounting Flexibility
The relay can be attached to the
PDU without hardware to
facilitate door mounting.
LEDS
One green LED power indicator
and a flashing red trip LED to
indicate over/undercurrent,
current unbalance, ground
fault, under/overvoltage, and
trip command.
CONFIG
The relay parameters are
programmed via the CONFIG
button. The CONFIG sub-menu is
similar to the status menu, and
allows the user to change relay
parameters: CT ratio, PT ratio,
fault settings, and time delays.
History
Displays the last ten (10) trip
records. The conditions at the
time of fault are displayed and
can be scrolled through using
the UP/DOWN arrow keys.

1–6 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
ORDERING CHAPTER 1: INTRODUCTION
1.4 Ordering
1.4.1 Order Codes
The order codes for the LM10 Motor Protection System are shown below.
Table 1–1: LM10 Order Codes
LM10 –D* –CT** –GF** –C* –**
Base unit LM10|||||LM10MotorProtectionSystem
Programmable
display unit
X||||No display unit
1||||Programmable display unit (with
cable)
Thermal overload
current transformer
XX | | | No phase current transformer
01 | | | Current sensor, NEMA starter size
1, 3-phase, 27 A
02 | | | Current sensor, NEMA starter size
2 and 3, 3-phase, 90 A
03 | | | Current sensor, NEMA starter size
4, 3-phase, 200 A
04 | | | Current sensor, NEMA starter size
5, 1-phase, 300 A
05 | | | Current sensor, NEMA starter size
6, 1-phase, 600 A
Ground fault sensor XX | | No ground fault sensor
01 | | Ground fault sensor: 20 A, 0.44"
window
02 | | Ground fault sensor: 20 A, 1.56"
window
03 | | Ground fault sensor: 20 A, 2.08"
window
04 | | Ground fault sensor: 20 A, 2.50"
window
05 | | Ground fault sensor: 20 A, 3.31"
window
06 | | Ground fault sensor: 20 A, 4.62"
window
Cable X|Nocable
1 | 30-inch communication cable
from relay to PC
Reserved XX For future use

CHAPTER 1: INTRODUCTION SPECIFICATIONS
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–7
1.5 Specifications
1.5.1 Protection Elements
OVERCURRENT (ANSI 51)
Curve shapes: ..................................................NEMA class 10, 15, 20 and 30, hot and cold
Timing accuracy:............................................±5% of total trip time + 1 second
GROUND FAULT
Pickup level: .....................................................0.4 to 20.0 A in steps of 0.2
Pickup accuracy: ............................................±5% or ±0.1 A, whichever is greater
Time delay:........................................................0 to 2.5 seconds in steps of 0.1
Timing accuracy:............................................±200 ms
CURRENT UNBALANCE (ANSI 46)
Pickup level: .....................................................2 to 25% in steps of 1
Pickup accuracy: ............................................±5%
Time delay:........................................................0 to 255 seconds in steps of 1
Timing accuracy:............................................±5% of total trip time + 1 second
MECHANICAL JAM
Pickup level: .....................................................100 to 250% in steps of 1
Pickup Accuracy: ............................................±5%
Time delay:........................................................0 to 1000 seconds in steps of 5
Timing accuracy:............................................±5% of total trip time + 1 second
STALL
Pickup level: .....................................................330 to 600% in steps of 5
Pickup Accuracy: ............................................±5%
Time delay:........................................................0 to 30.0 seconds in steps of 0.5
Timing accuracy:............................................±5% of total trip time + 1 second
LOAD LOSS
Pickup level: .....................................................15 to 100% in steps of 1
Pickup Accuracy: ............................................±5%
Time delay:........................................................0 to 255 seconds in steps of 1
Timing accuracy:............................................±5% of total trip time + 1 second
UNDERVOLTAGE/OVERVOLTAGE
Undervoltage pickup level: 80% of nominal voltage (96 V)
Overvoltage pickup level: 117% of nominal voltage (140 V)
Pickup accuracy: ............................................±5%
Trip time:.............................................................0.5 second
Timing accuracy:............................................±200 ms
1.5.2 Metering
PHASE CURRENT
Resolution:.........................................................0.1 A
Range:..................................................................0.05 to 8 × CT Primary (3200.0 A max.)
Accuracy: ...........................................................±5% of full scale

1–8 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
AVERAGE CURRENT
Resolution: .........................................................0.1 A
Range:..................................................................0.05 to 8 × CT Primary (3200.0 A max.)
Accuracy:............................................................±5% of full scale
GROUND CURRENT
Resolution: .........................................................0.1 A
Range:..................................................................0.0 to 25.0 A
Accuracy:............................................................±0.2A when current < 4.0 A
±5% of full scale when current ≥4.0A
CURRENT UNBALANCE
Resolution:.........................................................1%
Range:..................................................................0 to 250%
Accuracy:............................................................±5% of full scale
VOLTAGE
Resolution:.........................................................1 V
Range:..................................................................0 to 9000 V
Accuracy:............................................................±5% of full scale
POWER
Resolution: .........................................................0.1 kW
Range:..................................................................0 to 6553.5 kW
Accuracy:............................................................±5% of full scale
POWER FACTOR
Resolution: .........................................................0.01
Range:..................................................................0.5 to 1.0
Accuracy:............................................................±5% of full scale
TRIP HISTORY
Trip history:........................................................up to last 10 trips
COUNTERS
Motor run hour counter: .............................up to 65535 hours
1.5.3 Control Functions
STARTER
Starter types:....................................................FVNR, FVR, RV, 2S1W, 2S2W, custom
Power loss autorestart: ...............................restart after power loss of 4 seconds or less
1.5.4 Inputs
POWER SUPPLY
Control power: .................................................80 to 145 V AC
Frequency:.........................................................50 and 60Hz
CURRENT
CT sensor pack:...............................................NEMA starter size 1 to 6 (27 A, 90 A primary)
Sensor Input:.....................................................0 to 0.27 V AC
Phase CT input:................................................0 to 5 A
Phase CT primary:..........................................75, 100, 120, 150, 200, 225, 250, 300, 400, 500, 600, 700,
800

CHAPTER 1: INTRODUCTION SPECIFICATIONS
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
Ground CT input:.............................................20 A ground fault sensor or 20:0.2 A ground fault CT
VOLTAGE
PT secondary:...................................................0 to 120 V
PT primary: ........................................................200 to 7200 V
CONTACT INPUT
Inputs:..................................................................7 fixed inputs (Run 1, Run 2, Aux sense 1, Aux sense 2,
Stop, Reset, DeviceNet control)
Recommended Supply voltage: ..............100 to 135 V AC
When the LM10 contact inputs are connected to the remote devices for the input signal via long
cables, induced voltages may be present at the input terminal of LM10 relay. The contact input
status could be detected as closed if the induced voltages are greater than 33V. Under these
situations it is recomonded to use interposing relay or to connect a resistor across the LM10
contact input terminal and ground to provide path for the induced voltages to the ground.

1–10 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
1.5.5 CT Dimensions
Thermal overload CT
Ground fault CT
1.5.6 Outputs
RELAY OUTPUTS
Relay pilot duty:...............................................5 A at 120 V AC
5Aat28VDC
1.5.7 Communications
DEVICENET
Functionality:....................................................group 2 slave only
Device type:.......................................................motor starter
O r d e r C o d e D e s c r i p t i o n W i n d o w
D i a m e t e r
Overall Dimensions
CT01 Current Sensor, NEMA Starter Size 1, 3 phase,
27 amp 0.44" 4.625"x2.000"x1.375"
CT02 Current Sensor, NEMA Starter Size 2&3, 3 phase,
90 amp 0.44" 4.625"x2.000"x1.375"
CT03 Current Sensor, NEMA Starter Size 4, 3 phase,
200 amp 0.69" 5.60"x2.38"x1.72"
CT04 Current Sensor, NEMA Starter Size 5, 1 phase,
300 amp 1.50" 4.50"x4.88"x4.68"
CT05 Current Sensor, NEMA Starter Size 6, 1 phase,
600 amp 2.50" 4.57"x4.57"x4.68"
Order Code Description Window
Diameter
Overall Dimensions
GF01 Ground Fault Sensor 1&2,
2 0 a m p , 3 x 0 . 4 4 " w i n d o ws 0.44" 4.625"x2.000"x1.375"
GF02 Ground Fault Sensor 3&4,
20 amp, 1x 1.56" window 1.56" 3.53"x3.65"x2.23"
GF03 Ground Fault Sensor 5,
20 a mp, 3x 2.08" wind ow s 2.08" 9.00"x3.94"x2.23"
GF04 Ground Fault Sensor, Limit Amp,
20 amp, 1x 2.5" window 2.5" 4.57"x4.57"x4.68"
GF05 Ground Fault Sensor, Limit Amp,
20 amp, 1x 3.13" window 3.13" 4.63"x5.10"x5.50"
GF06 Ground Fault Sensor, Limit Amp,
20 amp, 1x 4.62" window 4.62" 7.00"x7.12"x6.82"

CHAPTER 1: INTRODUCTION SPECIFICATIONS
LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–11
Connector type:...............................................5-pin micro-style molded male connector
Baud rate: ..........................................................125, 250 and 500 kbps via DIP switches
Mac id: .................................................................0 to 63 via DIP switches
Supports:............................................................Poll, COS and Cyclic IO, and explicit messaging
LEDs:.....................................................................network status and device status
SERIAL COMMUNICATIONS
Serial port: .........................................................RJ11 4-pin connector for Enervista LM10 Setup software
or to PDU
PANEL DISPLAY UNIT (OPTIONAL)
Display:................................................................16 character ×4 line display
1.5.8 Environmental
AMBIENT TEMPERATURE
Operating temperature:..............................0 to 60°C
Storage temperature:...................................–30 to 80°C
HUMIDITY
Humidity:............................................................up to 95% non condensing
1.5.9 Approvals/Certification
CERTIFICATION
UL: ........................................................................file number E228903 listed for USA and Canada
CE:..........................................................................conforms to EN 55011, EN 61000, IEC 68-2
DeviceNet CONFORMANCE TESTED™

1–12 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–13
LM10 Motor Protection System
Chapter 2: Installation
GE Consumer & Industrial
Multilin
Instal latio n
2.1 Wiring
2.1.1 DeviceNet
The LM10 has one micro-style (Brad Harrison style) connector that allows the purchase of
pre-built cables for attachment to the unit and the ability to daisy chain from one unit to
the next. These connectors meet all DeviceNet physical layer requirements.
FIGURE 2–1: LM10 DeviceNet Pinout
2.1.2 RS232 Port
The RS232 configuration port uses a standard RJ11 connector to interface with the
programming and display unit (PDU) or with a computer. Both communication and power
will be provided to the PDU through this connection. Standard RS232 levels are used for the
communications.
RJ11 Pin Description
1 N/A
2 Ground
3TXD
4RXD

2–14 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
WIRING CHAPTER 2: INSTALLATION
The LM10 base unit and PDU are designed to use a maximum 36-inch cable when the PDU
is mounted door-mounted alone. A shorter cable can be used when the two units are door-
mounted together.
The connection for the RS232 serial communications port is shown in the following figure.
The EnerVista LM10 software can be used to configure and monitor the status of the LM10
through the RS232 port.
FIGURE 2–2: LM10 RS232 Pinout
2.1.3 Control Terminals
The control terminal block is a phoenix contact style 0.2-inch center, dual-row, 16 points
per row removable connector. The connector will be used to make all field connections
(other than communications and CT sensors) to the unit. The terminal block has the
following connections:
5 +5 V (PDU use only)
6 N/A
RJ11 Pin Description
Table 2–1: Control Connections
Upper Signal Row Lower Signal Row
1 120 V AC - phase 1 17 Switch input - auxiliary 2
2 120 V AC - phase 2 18 Switch input - auxiliary 1
3 Switch input - stop 19 Switch input - run 2
4 Switch input - reset 20 Switch input - run 1
5 Switch input - common 21 Switch input - DeviceNet control
6 Relay 1 N.O. - run 22 Ground fault relay N.O.
7 Relay 1 common - run 23 Ground fault relay common
8 Chassis ground 24 Programmable relay N.O.
9 Relay 2 N.O. - run 25 Programmable relay N.C.
10 Ground fault relay N.C. 26 Programmable relay common
11 Relay 2 common - run 27 5 A CT 2 phase B
12 5 A CT 1 phase B 28 5 A CT 2 phase A
13 5 A CT 1 phase A 29 5 A CT 2 phase C
14 5 A CT 1 phase C 30 5 A CT 2 common
15 5 A CT 1 common 31 No connection
16 Ground CT 1 32 Ground CT 2