GE MM3 User manual

809773A1.CDR
STOP
RUNNING
RELAY A
RELAY A
STOPPED
RELAY B
RELAY B
TRIPPED
AUX RELAY 1
AUX RELAY 1
ALARM
AUX RELAY 2
AUX RELAY 2
VALUE
MESSAGE
AUTO MANUAL
STORE
RESET
ACTUAL
SETPOINT
START
A
START
A
START
B
START
B
MM3 MOTOR MANAGER 3
Instruction Manual
GE publication number: 1601-0107-A7 (GEK-106295F)
Copyright © 2007 GE Multilin
ISO9001:2000
G
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GE Multilin's Quality
Management System is
registered to ISO9001:2000
QMI # 005094
UL # A3775
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEmultilin.com
GE Consumer & Industrial
Multilin
*1601-0107-A7*

© 2007 GE Multilin Incorporated. All rights reserved.
GE Multilin MM3 Motor Manager 3 instruction manual for revision 1.2x.
MM3 Motor Manager 3, EnerVista, EnerVista Launchpad, EnerVista MM3 Setup, and FlexLogic are registered trademarks 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: 1601-0107-A7 (October 2007)

TABLE OF CONTENTS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL i
TABLE OF CONTENTS
1: INTRODUCTION OVERVIEW ........................................................................................................................................... 1-1
DESCRIPTION ........................................................................................................................ 1-1
FEATURES ............................................................................................................................. 1-1
ORDER CODES ...................................................................................................................... 1-5
ACCESSORIES ....................................................................................................................... 1-5
TECHNICAL SPECIFICATIONS ...................................................................................................... 1-6
PROTECTION ......................................................................................................................... 1-6
INPUTS .................................................................................................................................. 1-7
OUTPUTS ...............................................................................................................................1-7
COMMUNICATIONS .............................................................................................................. 1-8
CONFORMANCE ................................................................................................................... 1-8
2: INSTALLATION MOUNTING ......................................................................................................................................... 2-1
DESCRIPTION ........................................................................................................................ 2-1
WIRING ................................................................................................................................................. 2-2
TYPICAL WIRING .................................................................................................................. 2-2
INPUTS AND OUTPUTS .................................................................................................................. 2-3
PHASE CT INPUTS ............................................................................................................... 2-3
GROUND FAULT CT INPUT ................................................................................................ 2-3
SUPPLY VOLTAGE ................................................................................................................ 2-3
GROUND SURGE .................................................................................................................. 2-3
EXTERNAL CONNECTIONS .................................................................................................. 2-3
THERMISTOR INPUT ............................................................................................................. 2-3
ANALOG INPUT .................................................................................................................... 2-4
ANALOG OUTPUT ................................................................................................................ 2-4
AUXILIARY 2 COIL ............................................................................................................... 2-4
OUTPUT RELAYS .................................................................................................................. 2-4
SERIAL COMMUNICATION PORT ........................................................................................ 2-4
SWITCH INPUTS ................................................................................................................... 2-5
PROGRAMMABLE SWITCH INPUTS ..................................................................................... 2-5
STOP ...................................................................................................................................... 2-5
START A AND START B ....................................................................................................... 2-5
LOCAL ISOLATOR NO ......................................................................................................... 2-6
CONTACTOR STATUS ........................................................................................................... 2-6
DIELECTRIC STRENGTH TESTING ....................................................................................... 2-6
STARTER TYPES ................................................................................................................................. 2-7
FULL-VOLTAGE NON-REVERSING STARTER ..................................................................... 2-7
FULL-VOLTAGE REVERSING STARTER ............................................................................... 2-9
TWO-SPEED STARTER ......................................................................................................... 2-11
SLIP RING STARTER ............................................................................................................. 2-16
PRIMARY RESISTANCE STARTER ......................................................................................... 2-18
INVERTER STARTER .............................................................................................................. 2-20
AUTOTRANSFORMER OPEN TRANSITION STARTER .......................................................... 2-21
AUTOTRANSFORMER CLOSED TRANSITION STARTER ...................................................... 2-25
PART WINDING STARTER ................................................................................................... 2-29
WYE-DELTA OPEN TRANSITION STARTER ........................................................................ 2-30
WYE-DELTA CLOSED TRANSITION STARTER .................................................................... 2-32

ii MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TABLE OF CONTENTS
DUTY/STANDBY STARTER ................................................................................................... 2-34
SOFT STARTER ...................................................................................................................... 2-36
3: HARDWARE USER INTERFACE .............................................................................................................................. 3-1
DESCRIPTION ........................................................................................................................ 3-1
MESSAGE DISPLAY .............................................................................................................. 3-1
INDICATOR LEDS................................................................................................................. 3-2
KEYPAD ................................................................................................................................................. 3-4
SETPOINTS KEY .................................................................................................................... 3-4
ACTUAL VALUES KEY .......................................................................................................... 3-4
STORE KEY ............................................................................................................................ 3-4
STOP KEY .............................................................................................................................. 3-5
RESET KEY ............................................................................................................................ 3-5
START A/B KEYS ................................................................................................................. 3-5
MESSAGE UP/DOWN KEYS ................................................................................................ 3-5
MESSAGE LEFT/RIGHT KEYS .............................................................................................. 3-5
VALUE KEYS ......................................................................................................................... 3-5
HARDWARE DESCRIPTION ...........................................................................................................3-6
MM3 MOTOR MANAGER 3 DESIGN ................................................................................ 3-6
4: SOFTWARE OVERVIEW ........................................................................................................................................... 4-1
DESCRIPTION ........................................................................................................................ 4-1
REQUIREMENTS .................................................................................................................... 4-2
CHECKING IF INSTALLATION/UPGRADE IS REQUIRED ..................................................... 4-2
INSTALLING ENERVISTA MM3 SETUP .............................................................................. 4-2
CONFIGURATION .............................................................................................................................. 4-5
SERIAL COMMUNICATIONS ................................................................................................. 4-5
ETHERNET COMMUNICATIONS ........................................................................................... 4-7
USING ENERVISTA MM3 SETUP ................................................................................................. 4-8
SAVING SETPOINTS TO AFILE ............................................................................................ 4-8
FIRMWARE UPGRADES ........................................................................................................ 4-9
LOADING SETPOINT FILES .................................................................................................. 4-10
ENTERING SETPOINTS ......................................................................................................... 4-11
VIEWING ACTUAL VALUES .................................................................................................. 4-12
CHASSIS MOUNT UNITS ................................................................................................................ 4-15
DESCRIPTION ........................................................................................................................ 4-15
SETTING THE BAUD RATE AND PARITY ............................................................................. 4-15
5: SETPOINTS OVERVIEW ........................................................................................................................................... 5-1
SETPOINTS MAIN MENU ..................................................................................................... 5-1
DESCRIPTION ........................................................................................................................ 5-3
SETPOINT MESSAGE ABBREVIATIONS ............................................................................... 5-4
S1 CONFIGURATION ....................................................................................................................... 5-5
COMMUNICATIONS .............................................................................................................. 5-5
MOTOR IDENTIFICATION ..................................................................................................... 5-5
STARTER ................................................................................................................................ 5-6
CT/VT INPUTS ..................................................................................................................... 5-7
THERMISTOR ......................................................................................................................... 5-8
FAULT MODE ........................................................................................................................ 5-9
STATISTICS ............................................................................................................................ 5-9
PROGRAMMABLE MESSAGE ................................................................................................ 5-10

TABLE OF CONTENTS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL iii
PREFERENCES ....................................................................................................................... 5-10
S2 PROTECTION ................................................................................................................................ 5-11
MOTOR PROTECTION: THERMAL ........................................................................................ 5-11
MOTOR PROTECTION: GROUND FAULT ............................................................................ 5-16
MOTOR PROTECTION: OPTIONS ........................................................................................ 5-17
LOAD PROTECTION .............................................................................................................. 5-19
UNDER/OVERVOLTAGE PROTECTION ................................................................................ 5-21
S3 PROCESS ....................................................................................................................................... 5-22
PROGRAMMABLE INPUTS .................................................................................................... 5-22
INTERLOCK NAMES .............................................................................................................. 5-27
STOP CONFIGURATION ....................................................................................................... 5-27
ANALOG INPUT .................................................................................................................... 5-28
ANALOG OUTPUT ................................................................................................................ 5-29
PROCESS OPTIONS .............................................................................................................. 5-30
S4 CONTROL ...................................................................................................................................... 5-31
UNDERVOLTAGE AUTO RESTART ....................................................................................... 5-31
AUXILIARY RELAY CONFIGURATION .................................................................................. 5-32
S5 MONITORING ............................................................................................................................... 5-35
PLANT CONDITION .............................................................................................................. 5-35
PRESET COUNTERS AND TIMERS ....................................................................................... 5-36
S6 FACTORY DATA ........................................................................................................................... 5-37
PRODUCT FIRMWARE IDENTIFICATION ............................................................................. 5-37
PRODUCT MODEL IDENTIFICATION ................................................................................... 5-37
FACTORY SERVICE DATA .................................................................................................... 5-37
S7 TESTING ......................................................................................................................................... 5-38
TEST CONFIGURATION ........................................................................................................ 5-38
TEST RELAYS AND LEDS.................................................................................................... 5-38
CURRENT SIMULATION ........................................................................................................ 5-39
ANALOG OUTPUT SIMULATION ......................................................................................... 5-40
ANALOG INPUT SIMULATION ............................................................................................. 5-41
SWITCH INPUTS SIMULATION ............................................................................................ 5-41
THERMISTOR SIMULATION .................................................................................................. 5-42
6: ACTUAL VALUES OVERVIEW ........................................................................................................................................... 6-1
ACTUAL VALUES MAIN MENU ........................................................................................... 6-1
DEFAULT MESSAGE SELECTION ......................................................................................... 6-2
ACTUAL VALUES ABBREVIATIONS ..................................................................................... 6-2
A1 DATA ............................................................................................................................................... 6-3
MOTOR DATA ....................................................................................................................... 6-3
PROCESS DATA .................................................................................................................... 6-4
PROGRAMMABLE MESSAGE ............................................................................................... 6-5
A2 STATUS .......................................................................................................................................... 6-6
TRIP DATA ............................................................................................................................ 6-6
ALARM DATA ........................................................................................................................ 6-7
MOTOR STATUS ................................................................................................................... 6-10
A3 INPUTS ........................................................................................................................................... 6-12
INPUT CONTACTS STATUS .................................................................................................. 6-12
A4 STATISTICS ................................................................................................................................... 6-13
TIMERS .................................................................................................................................. 6-13
COUNTERS ............................................................................................................................ 6-13

iv MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TABLE OF CONTENTS
7: TESTING INJECTION TESTING ........................................................................................................................ 7-1
PRIMARY INJECTION TESTING ............................................................................................ 7-1
SECONDARY INJECTION TESTING ...................................................................................... 7-1
FUNCTIONAL TESTS ........................................................................................................................ 7-3
PHASE CURRENT FUNCTIONS ............................................................................................ 7-3
UNBALANCE EXAMPLES ...................................................................................................... 7-4
GROUND FAULT CURRENT FUNCTIONS ........................................................................... 7-5
INPUT FUNCTIONS ............................................................................................................... 7-5
THERMISTOR INPUT TESTS ................................................................................................. 7-5
POWER FAIL TEST ................................................................................................................ 7-6
8: COMMUNICATIONS MM3 MOTOR MANAGER 3 MODBUS PROTOCOL ............................................................... 8-1
OVERVIEW ............................................................................................................................ 8-1
ELECTRICAL INTERFACE ....................................................................................................... 8-1
DATA FRAME FORMAT AND DATA RATE .......................................................................... 8-2
DATA PACKET FORMAT ....................................................................................................... 8-2
ERROR CHECKING ................................................................................................................ 8-3
TIMING .................................................................................................................................. 8-4
SUPPORTED MODBUS FUNCTIONS ......................................................................................... 8-5
DESCRIPTION ........................................................................................................................ 8-5
FUNCTION CODE 01H........................................................................................................ 8-5
FUNCTION CODE 03H........................................................................................................ 8-6
FUNCTION CODE 04H........................................................................................................ 8-6
FUNCTION CODE 05H........................................................................................................ 8-7
FUNCTION CODE 06H........................................................................................................ 8-8
FUNCTION CODE 07H........................................................................................................ 8-8
FUNCTION CODE 08H........................................................................................................ 8-10
FUNCTION CODE 10H........................................................................................................ 8-10
ERROR RESPONSES .............................................................................................................. 8-11
APPLICATIONS ................................................................................................................................... 8-12
PERFORMING COMMANDS USING FUNCTION CODE 10H............................................. 8-12
STORING ADDRESSES USING THE BROADCAST COMMAND ........................................... 8-12
USING THE USER-DEFINABLE MEMORY MAP .................................................................. 8-13
MODBUS MEMORY MAP ................................................................................................................ 8-16
DESCRIPTION ........................................................................................................................ 8-16
MODBUS DATA FORMATS .................................................................................................. 8-43
9: APPLICATIONS CONTROL WIRE APPLICATIONS .................................................................................................9-1
TWO-WIRE CONTROL .......................................................................................................... 9-1
HOA TWO-WIRE HAND / TWO-WIRE AUTO .................................................................. 9-2
HOA THREE-WIRE HAND / TWO-WIRE AUTO ................................................................ 9-4
HOA THREE-WIRE HAND / THREE-WIRE AUTO ............................................................ 9-5
HA THREE-WIRE HAND / TWO-WIRE AUTO ................................................................... 9-6
10: MISCELLANEOUS ASYMMETRICAL STARTING CURRENT ..................................................................................... 10-1
OVERVIEW ............................................................................................................................ 10-1
CT ISOLATION .................................................................................................................................... 10-4
MM3 MOTOR MANAGER 3 CT WITHSTAND .................................................................. 10-4
CT SIZE AND SATURATION ................................................................................................. 10-4
MM3 MOTOR MANAGER 3 FAQ .................................................................................................. 10-7

TABLE OF CONTENTS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL v
FREQUENTLY ASKED QUESTIONS ...................................................................................... 10-7
INSTALLATION CHECKLIST ........................................................................................................... 10-9
OVERVIEW ............................................................................................................................ 10-9
MM3 MOTOR MANAGER 3 GROUNDING ........................................................................ 10-9
GROUNDING OF PHASE AND GROUND CTS.................................................................... 10-9
RS485 COMMUNICATIONS PORT ..................................................................................... 10-9
SWITCH INPUTS ................................................................................................................... 10-10
THERMISTOR AND ANALOG INPUTS .................................................................................. 10-10
STOP SWITCH INPUT ........................................................................................................... 10-10
CONTACTOR STATUS FEEDBACK ....................................................................................... 10-10
EU DECLARATION OF CONFORMITY ........................................................................................ 10-11
EU DECLARATION ............................................................................................................... 10-11
CHANGE NOTES ................................................................................................................................ 10-12
REVISION HISTORY .............................................................................................................. 10-12
CHANGES TO THE MM3 MOTOR MANAGER 3 MANUAL .............................................. 10-12
GE MULTILIN WARRANTY ............................................................................................................. 10-13
WARRANTY STATEMENT ..................................................................................................... 10-13
INDEX

vi MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TABLE OF CONTENTS

MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 1–1
MM3 Motor Manager 3
Chapter 1: Introduction
GE Consumer & Industrial
Multilin
STOP
RUNNING
RELAY A
RELAY A
STOPPED
RELAY B
RELAY B
TRIPPED
AUX RELAY 1
AUX RELAY 1
ALARM
AUX RELAY 2
AUX RELAY 2
VALUE
MESSAGE
AUTO MANUAL
STORE
RESET
ACTUAL
SETPOINT
START
A
START
A
START
B
START
B
Introduction
1.1 Overview
1.1.1 Description The MM3 Motor Manager 3 combines control functions normally found in a low voltage
motor control center (MCC) with motor protection. This compact, microprocessor based
device, provides sophisticated control and protective relaying at significant cost savings
over an MCC design using discrete devices.
Standard features simplify maintenance and plant expansion. One MM3 Motor Manager 3
is required for every starter unit in the MCC. The contactor can be energized and de-
energized using the MM3 Motor Manager 3's direct-wired inputs or via the serial port. Full
voltage non-reversing, full voltage Reversing, two-speed, autotransformer, inverter, wye-
delta, slip ring, and part winding type starters may be completely controlled by the MM3
Motor Manager 3 using the two contactor outputs.
Motor protection is included for the most common causes of failure to prevent costly
shutdowns and rewinds. These include three-phase overload, stalled rotor, ground fault
and loss of phase.
A two-wire RS485 Modbus communications port is provided for high speed
communications with a complete line-up of MCCs. Any MM3 Motor Manager 3 may be
interrogated on demand to determine both actual and setpoint operating parameters.
Fast response time to a request for alarm or trip status makes real time control of a
complete process possible. Statistical recording of running hours and number of starts and
trips assists with predictive maintenance scheduling.
1.1.2 Features The MM3 Motor Manager 3 has been developed with economy in mind. The customer is
able to choose from different options to achieve maximum benefit from the relay when
integrated into the process environment. The standard MM3 Motor Manager 3 comes with

1–2 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
three-phase overload protection (49/51), single-phase, four (4) control inputs (start, stop,
local isolator, contactor A status) plus 4 programmable inputs. The full version adds the
following additional features:
• Second contactor control (wye/delta, two speed, reversing, etc.) including all
timers, relays and control inputs
• Undercurrent/underpower protection (ANSI 37)
• Thermistor (ANSI 49) input which accepts PTC and NTC thermistor types
• Analog input/output
• Six (6) additional programmable inputs plus two (2) control inputs
Table 1–1: MM3 Motor Manager 3 Options
Option 1 (standard) Option 2 (full)
Contactor A Contactor A
Serial communications Serial communications
Four (4) programmable inputs Ten (10) programmable inputs
Four (4) control inputs Six (6) control inputs
Three (3) phase inputs Three (3) phase inputs
One (1) ground fault input One (1) ground fault input
Auxiliary 1 relay Aux 1 relay
Auxiliary 2 / ESD relay Contactor B
VT input Auxiliary 2 / ESD relay
VT input
Thermistor input
Analog input
Analog output

CHAPTER 1: INTRODUCTION OVERVIEW
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 1–3
Figure 1-1: Functional block diagram

1–4 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
OVERVIEW CHAPTER 1: INTRODUCTION
Figure 1-2: Features
10
STATUS INDICATORS:
RUNNING:Contactor is energized
and motor is running.
STOPPED: Contactor is not
energized and motor is not running.
TRIPPED: Contactor is not
energized. Motor is not running.
The MM3 has tripped the motor due
To a fault. Normally a cause of
trip message will be displayed.
ALARM: One or more alarm
conditions are present.
Normally a cause of alarm
message will be displayed.
Front View
PROGRAM KEYS:
ACTUAL VALUES: Press to enter
actual values mode to display actual
Motor values such as current,
ground leakage, thermal capacity.
SETPOINTS: Press to enter setpoint
mode to alter or examine setpoints.
STORE: Save a newly entered
setpoint.
RESET: Reset the MM3 after a trip.
MESSAGE: Move to the desired
setpoint or actual value message.
VALUE: Increment or decrement
currently displayed setpoint value.
CONTROL KEYS:
AUTO: Selects operation of start
via communication port.
MANUAL: Selects manual.
operation of motor using the
Start key.
START A: Energize contactor A.
START B: Energize contactor B.
STOP: De-energize contactors.
RELAY INDICATORS:
RELAY A: Contactor A energized.
RELAY B: Contactor B energized.
AUX 1: User programmable relay 1 energized.
AUX 2: User programmable relay 2 energized.
DISPLAY:
2 line, 40 character illuminated display
communicates all messages in simple
English for easy interpretation by users
unfamiliar with unit.
GROUND CT INPUT
50:0.025 ground fault
input.
Rear View
SUPPLY VOLTAGE
required to power the MM3
VOLTAGE INPUT
Phase A voltage input for
voltage and power monitoring.
SWITCH INPUTS
Opto-isolated 120/240 VAC live inputs for various interlock functions.
The interlock inputs are fully programmable and can be assigned to
functions as setpoint access, plant interlock, test, and various others.
COMMUNICATIONS
RS485 2 wire serial
communication port
operates at 1200 to
57600 bps for remote
commands, monitoring
and setpoint store.
Modbus
®
RTU protocol.
Ground
safety and
surge
THERMISTOR
NTC or PTC thermistor
input for hot winding
detection.
ANALOG INPUT/OUTPUT
4 to 20mA input for
Process control monitoring
/ alarming / tripping.
4 RELAYS
Contactor A: direct on
line / forward / wye
Contactor B: reverse / delta
User programmable relay
(AUX 1)
User programmable relay
(AUX 2)
CONTROL POWER
120/240 VAC supply voltage
selector switch and fuse
access door
Ground safety
RESIDUAL GROUND INPUT
PHASE CT INPUTS
3 isolated phase CT inputs
809700A1.CDR

CHAPTER 1: INTRODUCTION OVERVIEW
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 1–5
1.1.3 Order codes The order codes for the MM3 Motor Manager 3 are shown below.
This instruction manual describes the features of a MM3 Motor Manager 3 with all options
included.
Examples:
• MM3 Motor Manager 3–2–E–N–120: full-featured MM3 Motor Manager 3, ESD
relay, chassis mount unit with 120 V AC control power
• MM3 Motor Manager 3–1–A–W–240: basic MM3 Motor Manager 3 with auxiliary 2
relay, local display and 240 V AC control power
1.1.4 Accessories The following accessories are available for the MM3 Motor Manager 3:
•EnerVista MM3 Setup software: no-charge software package to aid in setting up
MM3 Motor Manager 3 operating parameters (available online at http://
www.GEmultilin.com)
•RS-232/485: RS232 to RS485 converter box designed for harsh industrial
environments
•5A Phase CT: 300, 350, 400, 500, 600, 750, 1000
•50:0.025 ground CT: For sensitive ground detection on high resistance grounded
systems
•Control key cover: Covers the auto/manual LEDs, keys and keypad start buttons
Table 1–2: Selection guide
MM3
Motor
Manag
er 3
––––
Base unit MM3
Motor
Manag
er 3
|||| Productfamily
MM3 Motor
Manager 3
options
1 | | | Option 1: basic unit
2 | | | Option 2: full unit
Relay E| | ESDrelay
A | | Auxiliary 2 relay
Display N | No display (chassis unit)
W | With local display
Power 120 120 V AC control voltage
240 240 V AC control voltage
NOTE

1–6 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TECHNICAL SPECIFICATIONS CHAPTER 1: INTRODUCTION
1.2 Technical specifications
Design and specifications subject to change without notice.
1.2.1 Protection ACCELERATION TIME
Range:......................................0.5 to 125 seconds or OFF
Accuracy:................................± 0.5 seconds
GROUND FAULT TRIP TIME
Accuracy:................................–0 ms/+50 ms; 0.0 = less than 50 ms
OVERLOAD CURVES TRIP TIME
Accuracy:................................± 200 ms up to 10 seconds
± 2% of trip time over 10 seconds
Detection level: ....................± 1% of primary CT amps
SINGLE PHASE
Range:......................................greater than 30% U/B
Accuracy:................................± 2 percentage points
Trip delay:...............................5 seconds, ±1 second
Calculation method: .........
where IAV = average phase current, IM= current in a phase with maximum
deviation from IAV, and IFLC = motor full load current setting
STALLED ROTOR
Range:......................................1.15 to 4.50 ×FLC or OFF
Delay range:..........................0.5 to 5 seconds
Accuracy:................................± 0.5 second
THERMAL COOLING
Range: .....................................5 to 1080 minutes when motor stopped
50% of motor stopped value when motor running.
Accuracy: ...............................± 1 minute
UNDERCURRENT
Range:......................................10 to 100% ×motor FLC or OFF
Delay range:..........................1 to 60 seconds
Accuracy:................................±1 second
UNDERVOLTAGE
Undervoltage:.......................65% of nominal (120 or 240 V AC);
immediate restart for maximum dip time of 0.1 to 0.5 seconds or OFF;
delayed restart for maximum dip time of 0.1 or 10.0 seconds or unlimited
Delay restart range: ..........0.2 to 300 seconds
Delay restart accuracy: ...±0.2 seconds
NOTE
if IAV IFLC ≥: UB% IMIAV
–
IAV
---------------------100×=
if IAV IFLC <: UB% IMIAV
–
IFLC
---------------------100×=

CHAPTER 1: INTRODUCTION TECHNICAL SPECIFICATIONS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 1–7
1.2.2 Inputs ANALOG INPUT
Range: ......................................4 to 20 mA
Accuracy:................................±1% of full scale
Alarm: .......................................programmable 4 to 20 mA
Trip:............................................programmable 4 to 20 mA
Isolation:..................................15 V isolated, active source
GROUND FAULT CURRENT INPUT
Conversion:............................true RMS, sample time 1.67 ms
Range: ......................................0.1 to 1.0 ×FLC amps setpoint (for residual connection)
0.5 to 15.0 A (for 50:0.025 CT)
Full scale: ................................1.5 ×FLC amps setpoint (for residual connection)
15 A (for 50:0.025 CT)
Accuracy:................................± (2% + 2), for FLC <32 A †(residual connection)
± (2% + 6), for FLC ≥32 A †(residual connection)
± 0.3 A (for 50:0.025 CT)
† Accuracy given as ± ([% of reading] + [number of least significant digits])
PHASE CURRENT INPUTS
Conversion:......................true RMS, sample time 1.67 ms
Range: ......................................0.1 to 8 ×PHASE CT PRIMARY AMPS setpoint when external CTs used
0.2 to 250 A when FLC <32 A
1 to 2000 A when FLC ≥32 A
Accuracy: ...............................± (2% +1) †
Frequency: .............................20Hz - 200Hz sine wave
SUPPLY VOLTAGE
AC nominal:............................115 V AC, range 80 to 135 V AC
230 V AC, range 150 to 250 V AC
Frequency: .............................50/60 Hz
Power: ......................................25 VA (maximum), 7 VA (nominal)
THERMISTOR INPUTS
Sensor types:.........................positive temperature coefficient (PTC) RHOT = 100 to 30000 Ω;
negative temperature coefficient (NTC) RHOT = 100 to 30000 Ω
Delay:........................................1 second
Accuracy:................................± 5% or 100 Ω(whichever is greater)
VOLTAGE INPUT / POWER READING
Conversion:............................true RMS, sample time 1.67 ms
Voltage full scale:................1.5 ×VT primary
Voltage accuracy:...............± 2% of VT primary or 2% of reading, whichever is greater
Power accuracy:..................± 5% of nominal or ± 5% of reading, whichever is greater
Input voltage:........................120 V AC or 240 V AC nominal;
250 V AC maximum
VT burden: ..............................0.01 VA
1.2.3 Outputs ANALOG OUTPUTS
Output:.....................................4 to 20 mA
Maximum load: ....................600 Ω
Maximum output: ...............21 mA
Accuracy:................................±1% of full scale reading
Isolation:..................................36 V isolated, active source

1–8 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TECHNICAL SPECIFICATIONS CHAPTER 1: INTRODUCTION
CONTACTOR A AND B OUTPUT RELAYS
Operating current:..............8 A maximum
Operating voltage: .............380 V AC / 125 V DC maximum
Make/carry: ...........................8 A continuous at 30 V DC / 250 V AC (resistive loads)
3.5 A continuous at 30 V DC / 250 V AC (inductive loads, PF = 0.4)
Switching capacity: ...........2500 VA / 300 W maximum at 30 V DC / 250 V AC (resistive loads)
1250 VA / 220 W maximum at 30 V DC / 250 V AC (inductive loads, PF = 0.4)
Configuration: ......................SPST-NO, form-A
Contact material:................silver alloy (AgCdO)
Minimum permissible load: 5 V DC, 10 mA minimum
AUXILIARY 1 AND 2 OUTPUT RELAYS
Operating current:..............8 A maximum
Operating voltage: .............380 V AC / 125 V DC maximum
Make/carry: ...........................8 A continuous at 30 V DC / 250 V AC (resistive loads)
3.5 A continuous at 30 V DC / 250 V AC (inductive loads, PF = 0.4)
Switching capacity: ...........2000 VA / 240 W maximum at 30 V DC / 250 V AC (resistive loads)
875 VA / 170 W maximum at 30 V DC / 250 V AC (inductive loads, PF = 0.4)
Configuration: ......................SPST-NO + SPST-NC, form-C
Contact material:................silver alloy (AgCdO)
Minimum permissible load: 5 V DC, 10 mA minimum
1.2.4 Communications PORTS
Type: ........................................RS485 2-wire, half duplex
Baud rate: .............................1200 bps to 57 kbps
Protocol: .................................Modbus RTU
Functions: ..............................read/write setpoints, read coil status, read actual values, read device status,
execute commands, loopback test
1.2.5 Conformance TYPE TESTS
Transients:..............................ANSI/IEEE C37.90.1 Oscillatory/Fast Risetime Transients
IEC 801-4 Electrical Fast Transient/Burst Requirements
Impulse: ..................................IEC 255-5 5 kV Impulse Voltage Test
RFI: ............................................150 MHz, 450 MHz 5W Handheld Transmitter at 25 cm
Static: ......................................IEC 801-2 Electrostatic Discharge
HIPOT: ......................................60255.5 Dielectric Strength: 2.3kV AC for 1 minute
PRODUCTION TEST
HIPOT: ......................................2.1kV AC for 1 second
CERTIFICATION/COMPLIANCE
UL:..............................................UL Listed (File E83849)
UL 508 - Industrial Control Equipment
UL 1053 - Ground Fault Protection Equipment
CSA:...........................................Certified per C22.2 No. 14 - Industrial Control Equipment
CE:..............................................IEC 947-1, IEC 1010-1
ISO: ............................................registered to ISO 9001-1994
ENVIRONMENT
Pollution degree: .................2

CHAPTER 1: INTRODUCTION TECHNICAL SPECIFICATIONS
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 1–9
OPERATION
Overvoltage category:......2
Insulation voltage:..............300 V
OPERATING TEMPERATURES
Cold: ..........................................IEC60068-2-1, 16h at -40°C
Dry Heat:.................................IEC60068-2-2, 16h at +85°C
HUMIDITY (NON CONDENSING)
.....................................................IEC60068-2-30, 95% variant 1, 6 days
IP class:....................................IEC 529 – IpX0
Fuse:..........................................0.5 A, 250 V fast blow, high breaking capacity
DIMENSIONS
Weight: ...................................6 lbs. 12 oz. (3.1 kg) maximum
Shipping box:...................12" ×9" ×7.5" (350 mm ×229 mm ×190 mm)
INSTALLATION
Ventilation requirements:None
Cleaning requirements: None
HAZARD may result if the product is not used for its intended purpose.
It is recommended that all MM3 Motor Manager 3 relays are powered up at least once per
year to avoid deterioration of electrolytic capacitors in the power supply.
CAUTION
NOTE

1–10 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
TECHNICAL SPECIFICATIONS CHAPTER 1: INTRODUCTION

MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL 2–1
MM3 Motor Manager 3
Chapter 2: Installation
GE Consumer & Industrial
Multilin
STOP
RUNNING
RELAY A
RELAY A
STOPPED
RELAY B
RELAY B
TRIPPED
AUX RELAY 1
AUX RELAY 1
ALARM
AUX RELAY 2
AUX RELAY 2
VALUE
MESSAGE
AUTO MANUAL
STORE
RESET
ACTUAL
SETPOINT
START
A
START
A
START
B
START
B
Instal lati on
2.1 Mounting
2.1.1 Description Cut the panel as shown below to mount the MM3 Motor Manager 3. Use either the #8-32 or
#6 ×1/2” mounting screws provided to mount the MM3 Motor Manager 3 to the panel.
Figure 2-1: MM3 Motor Manager 3 Dimensions

2–2 MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
WIRING CHAPTER 2: INSTALLATION
2.2 Wiring
2.2.1 Typical Wiring A typical wiring diagram for the MM3 Motor Manager 3 is shown below. The purpose of this
diagram is to provide an example of how the MM3 Motor Manager 3 is typically wired, not
specifically how to wire the MM3 Motor Manager 3. Please refer to the following pages for
details on wiring the unit based on general requirements.
Figure 2-2: Typical Wiring Diagram