Page 1 MM2 Firmware Revision: 4.0x MM2 Software Revision: 4.0X or newer Manual P/N: 1601-0056-DN (GEK-106294) Copyright © 2001 GE Power Management Units must be powered up at least once per year to avoid deterioration of electrolytic capacitors and subsequent relay failure.
Page 3 These instructions do not purport to cover all details or variations in equipment nor pro- vide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purpose, the matter should be referred to the General Electric Company.
Page 5: Table Of Contents
3.2.5 RESET KEY ..................3-4 3.2.6 START A KEY................3-4 3.2.7 START B KEY................3-5 3.2.8 MESSAGE UP/DOWN KEYS ............3-5 3.2.9 MESSAGE LEFT/RIGHT KEYS............3-5 3.2.10 VALUE UP/DOWN KEYS .............3-5 3.3 THEORY OF OPERATION 3.3.1 HARDWARE DESCRIPTION............3-6 MM2 Motor Manager 2 GE Power Management...
Page 6 4.7.4 FACTORY SERVICE DATA ............4-34 5. ACTUAL VALUES 5.1 OVERVIEW 5.1.1 DESCRIPTION................5-1 5.1.2 DEFAULT MESSAGE SELECTION..........5-1 5.1.3 ABBREVIATIONS ................ 5-2 5.2 A1 DATA 5.2.1 DESCRIPTION................5-3 5.2.2 MOTOR DATA ................5-3 MM2 Motor Manager 2 GE Power Management...
Page 7 COMMAND .................6-15 6.4.3 USING THE USER DEFINABLE MEMORY MAP.......6-16 6.4.4 USER DEFINABLE MEMORY MAP DEFAULT VALUES...6-17 6.5 MEMORY MAP 6.5.1 DESCRIPTION................6-19 6.5.2 MEMORY MAP TABLE ...............6-20 6.6 DATA FORMATS 6.6.1 DATA FORMATS TABLE............6-41 MM2 Motor Manager 2 GE Power Management...
Page 8 9.3 TWO SPEED STARTER 9.3.1 DESCRIPTION................9-6 9.3.2 MM2 SEQUENCES ..............9-7 9.4 SLIP RING STARTER 9.4.1 DESCRIPTION................9-11 9.4.2 MM2 SEQUENCES ..............9-12 9.5 PRIMARY RESISTANCE STARTER 9.5.1 DESCRIPTION................9-14 9.5.2 MM2 SEQUENCE ..............9-15 MM2 Motor Manager 2 GE Power Management...
Page 9 10.2.6 CONTROL OPERATION ............10-7 10.3 HAND/AUTO CONFIGURATION 10.3.1 3-WIRE HAND / 2-WIRE AUTO ..........10-9 A. MM2 COMMISSIONING A.1 COMMISIONING SUMMARY A.1.1 DESCRIPTION................A-1 B. MM2 FAQ B.1 MM2 FAQ B.1.1 QUESTIONS AND ANSWERS ............ B-1 MM2 Motor Manager 2 GE Power Management...
Page 10 E.1.2 CT SIZE AND SATURATION ............E-1 F. FIGURES AND TABLES F.1 LISTS F.1.1 LIST OF FIGURES............... F-1 F.1.2 LIST OF TABLES ................. F-2 G. MISCELLANEOUS G.1 EU DECLARATION OF CONFORMITY 0.1 GE POWER MANAGEMENT WARRANTY MM2 Motor Manager 2 GE Power Management...
Page 11: Introduction
MM2 to calculate and display kW and kWh (Option 2) • undercurrent/underpower protection (37) (Option 2) • thermistor (49) input which accepts PTC and NTC thermistor types (Option 2) • overvoltage (59) and undervoltage (27) protection (Option 2) MM2 Motor Manager 2 GE Power Management...
Page 12: Ordering
Power (kW): Includes a single VT input allowing for calculation of kW and kWhrs, as well as under- power alarm. Thermistor: Includes a thermistor input with alarm or trip settings for NTC and PTC type thermistors. MM2 Motor Manager 2 GE Power Management...
Page 13: Accessories
MOD614 – 7200 VT Primary Setting: VT PRIMARY setpoint up to 7200 V and Variable Overload Curve setting. MOD615 – 7200 VT Primary Setting: VT PRIMARY setpoint up to 7200 V and Backspin Timer. MM2 Motor Manager 2 GE Power Management...
Page 14: Specifications
–0 ms / +50 ms, 0.0 = less than 50 ms ACCELERATION TIME RANGE: 0.5 to 125 seconds or OFF ACCURACY: ±0.5 seconds SINGLE PHASE RANGE: greater than 30% U/B ACCURACY: ± 2 percentage points TRIP DELAY: 5 seconds ± 1 second MM2 Motor Manager 2 GE Power Management...
Page 15 4 to 20 mA COMMUNICATIONS TYPE: RS485 2 wire, half duplex BAUD RATE: 1200 to 19200 baud PROTOCOL: Modbus RTU FUNCTIONS: Read/write setpoints, Read coil status, Read actual values, Read device status, Execute commands, Loopback Test MM2 Motor Manager 2 GE Power Management...
Page 16 Immediate restart for maximum dip time of 0.1 to 0.5 seconds or OFF; Delayed restart for maximum dip time of 0.1 to 10.0 seconds or UNLIMITED time DELAY RESTART RANGE: 0.2 to 300 seconds DELAY RESTART ACCURACY: ±0.2 seconds MM2 Motor Manager 2 GE Power Management...
Page 17 IEC 255-5 5 kV Impulse Voltage Test RFI: 150 MHz, 450 MHz 5 W Handheld Transmitter at 25 cm STATIC: IEC 801-2 Electrostatic Discharge HI-POT: 1500 V, 1 minute; all inputs > 30 V MM2 Motor Manager 2 GE Power Management...
Page 18: Installation
QUALITY ASSURANCE SYSTEM: Registered by QMI to CSA CAN3.Z299.3-1985 & ISO 9001-1994 It is recommended that all MM2 relays are powered up at least once per year to avoid deterioration of electrolytic capacitors in the power supply. NOTE MM2 Motor Manager 2 GE Power Management...
Page 19: Mounting
Cut the panel as shown below to mount the MM2. Use either the #8-32 or #6 × ½” mounting screws provided to mount the MM2 to the panel. Figure 2–1: MM2 MOUNTING INSTRUCTIONS MM2 Motor Manager 2 GE Power Management...
Page 20 2.1 MOUNTING 2 INSTALLATION The dimensions for the standard MM2 and the MM2 with reduced mounting collar are shown below: Figure 2–2: MM2 DIMENSIONS Figure 2–3: MM2 WITH DEPTH REDUCTION COLLAR DIMENSIONS MM2 Motor Manager 2 GE Power Management...
Page 21 2 INSTALLATION 2.1 MOUNTING Figure 2–4: TYPICAL WIRING DIAGRAM MM2 Motor Manager 2 GE Power Management...
Page 22 4-20mA 4-20mA MOTOR WINDING WINDING INPUT INPUT THERMIST THERMISTOR MANAGER 2 MANAGER 2 THERMISTOR RS485 REMOTE RS485 REMOTE LOAD COMMUNICA COMMUNICATION TION MOTOR 1200-19K2 BAUD 1200-19K2 BAUD Figure 2–5: MM2 FUNCTIONAL BLOCK DIAGRAM MM2 Motor Manager 2 GE Power Management...
Page 23: Inputs And Outputs
#8 screw ring terminals that can accept wire as large as 8 gauge. Consult Figure 2– 4: TYPICAL WIRING DIAGRAM on page 2–3. Other features can be wired as required. MM2 Motor Manager 2 GE Power Management...
Page 24: Thermistor Input
These 10 inputs can be programmed to one of a number of different functions. Some of the available functions are: Setpoint Access, Lockout Reset, Plant Interlock, Auto Start, Remote Permissive, and Test. See the S3: PROCESS \ PROGRAMMABLE INPUTS page for complete list of available functions. MM2 Motor Manager 2 GE Power Management...
Page 25: Serial Communication Port
If this terminal is de-energized, both contactor A and contactor B output relays will open causing the contactor coils to de-energize. The stop input must be energized before the MM2 will process any start commands. MM2 Motor Manager 2 GE Power Management...
Page 26: Start A / Start B
AC input. Under no circumstances should any inputs other than switches, relays, supply volt- age, VT input, and CT inputs be dielectric tested. WARNING MM2 Motor Manager 2 GE Power Management...
Page 27: Hardware
RUNNING STOPPED TRIPPED ALARM FAULT CONTACTOR A SETPOINT AUTO START A CONTACTOR B MESSAGE AUX 1 MANUAL START B ACTUAL AUX 2 RESET STOP VALUE STORE 807230A1.CDR Figure 3–1: FRONT PANEL MM2 Motor Manager 2 GE Power Management...
Page 28: Indicator Leds
Start A / Start B switch inputs, AUTO START A / AUTO START B switch inputs and START A / START B keypad keys are operational but serial port start commands are ignored. All stop com- mands are operational. MM2 Motor Manager 2 GE Power Management...
Page 29: Keypad
EFFECT: Pressing this key will cause the display to show the beginning of the next page of Actual Values data. If setpoints data was on the display before pressing the ACTUAL key, page A1 of Actual Values will be shown: ]] ACTUAL VALUES ]] A1: DATA MM2 Motor Manager 2 GE Power Management...
Page 30: Store Key
USE: The START A key is used to start the motor from the faceplate of the MM2. Start A can also be initiated from the start switch inputs at the back of the MM2 or from the serial port. MM2 Motor Manager 2 GE Power Management...
Page 31: Start B Key
VALUE DOWN key will decrement the currently displayed setpoint value. If the display shows an Actual Value these keys will have no effect USE: These keys can be used any time to change the value displayed in the setpoint messages. MM2 Motor Manager 2 GE Power Management...
Page 32: Theory Of Operation
The 68HC705 is used to provide separate watchdog timer and power fail monitoring control to ensure that the main CPU starts and operates under any input voltage con- ditions. Should normal program execution fail, the 68HC705 resets the main CPU. MM2 Motor Manager 2 GE Power Management...
Page 33 3 HARDWARE 3.3 THEORY OF OPERATION Figure 3–2: BLOCK DIAGRAM MM2 Motor Manager 2 GE Power Management...
Page 34 3.3 THEORY OF OPERATION 3 HARDWARE MM2 Motor Manager 2 GE Power Management...
Page 35: Setpoints
A, AMPS: Amperes • AUX: Auxiliary • CBCT: Core Balance Current Transformer • COM, COMMS: Communication • CT: Current Transformer • FLC: Full Load Current • FV: Full Voltage • G/F: Ground Fault MM2 Motor Manager 2 GE Power Management...
Page 36 ]] S5: MONITORING ]] S6: FACTORY DATA ] PLANT CONDITION ] PRODUCT FIRMWARE ] IDENTIFICATION ] PRESET COUNTERS ] PRODUCT MODEL ] AND TIMERS ] IDENTIFICATION ] FACTORY SEVICE ] DATA Figure 4–1: SETPOINTS MESSAGES MM2 Motor Manager 2 GE Power Management...
Page 37: Description
Range: 110 V to 600 V; Step: 1 V SYSTEM SUPPLY: 480 V Enter system supply voltage on this line. This message is for reference only and does not affect operation of the MM2. MM2 Motor Manager 2 GE Power Management...
Page 38: Starter
STAGE ONE SHORTING TIME: 5 s Appears only if STARTER TYPE is SLIP RING or PART WINDING. This is the time delay from the closure of Contactor A to the closure of Contactor B. MM2 Motor Manager 2 GE Power Management...
Page 39: Ct / Vt Inputs
) or LINE A-B (V Range: 110 V, 120 V VT SECONDARY VOLTAGE: 120V Appears only if the VT PRIMARY VOLTAGE setpoint is not set to OFF. Range: 50 Hz, 60 Hz NOMINAL FREQUENCY: 60 Hz MM2 Motor Manager 2 GE Power Management...
Page 40: Thermistor
UAL when the SERIAL COMMS FAILURE ALARM is active. If the motor was running when the alarm occurred it will be stopped and will restart based on manual start inputs only. When serial communication is restored the MM2 will remain in MANUAL command mode. MM2 Motor Manager 2 GE Power Management...
Page 41: Statistics
The default message delay can now be adjusted with this setpoint. Range: 0 to 100% in steps of 20 DEFAULT MESSAGE BRIGHTNESS: 60% The display brightness can now be adjusted when it is not in use. MM2 Motor Manager 2 GE Power Management...
Page 42: S2 Protection
5.00 5.50 6.00 6.50 7.00 7.50 8.00 The standard overload curves are shown in the following chart. Note that K+E 11” x 17” format of time/overcurrent curves are available from factory upon request. MM2 Motor Manager 2 GE Power Management...
Page 43 4 SETPOINTS 4.3 S2 PROTECTION MM2/MM3 STANDARD TIME/CURRENT OVERLOAD CURVES GE POWER MANAGEMENT 100000 10000 1000 CURVE # CURVE # MULTIPLE OF PICKUP CURRENT (PER UNIT) 807638D4.CDR Figure 4–2: GE POWER MANAGEMENT TIME/OVERCURRENT CURVES MM2 Motor Manager 2 GE Power Management...
Page 44: Nema Compatible Overload Curves
18.6 8.00 10.9 16.3 The NEMA compatible overload curves are shown in the following chart. Note that K+E 11” x 17” for- mat of time/overcurrent curves are available from factory upon request. 4-10 MM2 Motor Manager 2 GE Power Management...
Page 45 CURVE # CURVE # CLASS 30 CLASS 30 CLASS 20 CLASS 20 CLASS 15 CLASS 15 CLASS 10 CLASS 10 MULTIPLE OF PICKUP CURRENT (PER UNIT) 807903D4.CDR Figure 4–3: NEMA COMPATIBLE TIME/OVERCURRENT CURVES MM2 Motor Manager 2 4-11 GE Power Management...
Page 46: Motor Protection - Thermal
LRT Hot = 7 seconds, and LRT Cold = 10 seconds, the thermal capacity used can be determined from the HOT/COLD CURVE RATIO as follows: LRT Hot 7 sec. × × HOT/COLD CURVE RATIO ------------------------ - ------------------ - LRT Cold 10 sec. 4-12 MM2 Motor Manager 2 GE Power Management...
Page 47: Motor Protection - Ground Fault
ALARM DELAY ON START setpoint below is used until the MM2 determines whether the motor is RUNNING or STARTING. NOTE Refer to the ACCELERATION TIME setpoint in Section 4.3.7: LOAD PRO- TECTION for details on how the MM2 detects a start condition. MM2 Motor Manager 2 4-13 GE Power Management...
Page 48 TRIP DELAY ON START setpoint below is used until the MM2 determines whether the motor is RUNNING or STARTING. NOTE Refer to the ACCELERATION TIME setpoint in Section 4.3.7: LOAD PRO- TECTION for details on how the MM2 detects a start condition. 4-14 MM2 Motor Manager 2 GE Power Management...
Page 49: Motor Protection - Options
The STOPPED MOTOR COOL TIME thus represents the time for the thermal capacity value to decay through 5 time constants. Note that an Over- load Trip can normally be reset when the thermal capacity value decreases to 15%. MM2 Motor Manager 2 4-15 GE Power Management...
Page 50 AUX contact failure. The OPEN CONTROL CIRCUIT TRIP feature should be used in conjunction with the RESET ALARMS USING RESET KEY function. 4-16 MM2 Motor Manager 2 GE Power Management...
Page 51: Load Protection
Set to a suitable level if a warning is required when motor current is approaching, or in, an overload condition. When current exceeds this value, a Load Increase Alarm will occur. Set to OFF if not required. MM2 Motor Manager 2 4-17 GE Power Management...
Page 52 Range: 0.5 to 5.0 seconds; Step: 0.5 seconds STALLED ROTOR TRIP DELAY: 3.0 s If the STALLED ROTOR TRIP LEVEL is set to a value other than OFF, the MM2 will trip after the time specified by this setpoint. 4-18 MM2 Motor Manager 2 GE Power Management...
Page 53: Under/Overvoltage Protection
Appears if VT PRIMARY VOLTAGE is not set to OFF. Set the OVERVOLTAGE TRIP DELAY long enough to prevent nuisance trips from momentary volt- age dips when the Undervoltage Trip feature is used. MM2 Motor Manager 2 4-19 GE Power Management...
Page 54: S3 Process
The Local Isolator switch input can be enabled or disabled using this Setpoint. When set to ENABLE a Local Isolator Trip will occur whenever the Local Isolator switch input is open. The trip will automatically reset when the switch input is closed. 4-20 MM2 Motor Manager 2 GE Power Management...
Page 55 Process Interlock switch is unhealthy. There is no time delay associated with this alarm feature. Note that the names of the Process Interlock features can be changed to any 20 alphanumeric character sequence. See S3: PROCESS \ INTERLOCK NAMES for further detail. MM2 Motor Manager 2 4-21 GE Power Management...
Page 56 TWO WIRE CONTROL: This function is used to provide a means to switch from normal pulsed three wire start / stop control to maintained two wire start / stop control. When this switch is 4-22 MM2 Motor Manager 2 GE Power Management...
Page 57 AUTO TRANS 2S CONTACT: This function Is used as a status feedback input for the autotrans- former open/closed transition starter type. See Section 9.7: AUTOTRANSFORMER OPEN TRANSITION STARTER on page 9–20 and 9.8: AUTOTRANSFORMER CLOSED TRANSITION STARTER on page 9–24. MM2 Motor Manager 2 4-23 GE Power Management...
Page 58 Faceplate Stop trips, Process Stop trips and ESD Stop trips MUST be manually reset regardless of the Duty/Standby mode. Local Isolator and Plant Interlock trips reset only when the input is healthy. NOTE 4-24 MM2 Motor Manager 2 GE Power Management...
Page 59: Interlock Names
Terminal 51 will cause a latched trip condition. Pressing the reset key will allow the motor to restart. If the MM2 is receiving a constant start signal the motor will start as soon as reset is pressed. MM2 Motor Manager 2 4-25 GE Power Management...
Page 60: Analog Input
If the analog input scaled value drops below the level set by this set- point, an Analog Input Low Trip will occur. Note that the trip level must be a value between the MINIMUM SCALE and MAXIMUM SCALE values. 4-26 MM2 Motor Manager 2 GE Power Management...
Page 61 Range: 1 to 600 seconds or OFF; Step: 1 second ANALOG TRIP HIGH DELAY: 5 s The analog input scaled value must be above the ANALOG TRIP HIGH LEVEL for the time specified by this setpoint before a trip will occur. MM2 Motor Manager 2 4-27 GE Power Management...
Page 62: S4 Control
This is the time measured by the MM2 backup processor; it is not the time the AC power has been off. See UNDERVOLTAGE RESTART for details. Range: 0.2 to 1200.0 seconds; Step: 0.2 seconds RESTART TIME DELAY 2.0 s See UNDERVOLTAGE RESTART for details. 4-28 MM2 Motor Manager 2 GE Power Management...
Page 63: Aux Relay 1/2 Config
Provides a delayed de-energization of the AUX Relay 1 when MOTOR RUNNING is selected as the AUX RELAY 1 FUNCTION. The AUX Relay 1 will de-energize after this time delay on the occurrence of a motor stop. MM2 Motor Manager 2 4-29 GE Power Management...
Page 64 INTERLOCK 5: The AUX Relay 1 will energize while the Interlock 5 switch input is closed. • INTERLOCK 6: The AUX Relay 1 will energize while the Interlock 6 switch input is closed. 4-30 MM2 Motor Manager 2 GE Power Management...
Page 65 OVERLOAD: This AUX Relay function will activate the Aux Relay when the motor is tripped on overload. • SOFT STARTER BYPASS: This AUX Relay function can be configured when using soft starter type. See Section 9.13: SOFT STARTER on page 9–38 for more details. MM2 Motor Manager 2 4-31 GE Power Management...
Page 66: S5 Monitoring
When the Motor Stopped Time exceeds this setpoint, a MAXIMUM MOTOR STOPPED TIME ALARM is generated. Start the motor to clear the Motor Stopped Time. If this feature is not required set this setpoint to OFF. 4-32 MM2 Motor Manager 2 GE Power Management...
Page 67: Preset Counters And Timers
TRIPS: 0 Sets the number of Control trips to a predetermined value. Range: 0 to 65535; Step 1 PRESET INTERLOCK COUNTER: 0 Sets the number of Interlock Counter operations to a predetermined value. MM2 Motor Manager 2 4-33 GE Power Management...
Page 68: S6 Factory Data
4 SETPOINTS 4.7 S6 FACTORY DATA 4.7.1 DESCRIPTION This page contains information about the version of the MM2 and data for GE Power Management service technicians. Setpoints Page 6 is divided into two sections, PRODUCT IDENTIFICATION and FACTORY SERVICE DATA.
Page 69: Actual Values
To delete a default message, first wait for 2 minutes and note which messages are displayed in sequence. Use the MESSAGE keys to display the default message to be erased. Press the STORE then RESET key in rapid succession. The display will prompt: TO DELETE THIS MESSAGE PRESS STORE MM2 Motor Manager 2 GE Power Management...
Page 70: Abbreviations
]] A4: STATISTICS ] MOTOR DATA ] TRIP DATA ] INPUT CONTACTS ] TIMERS ] STATUS ] PROCESS DATA ] ALARM DATA ] COUNTERS ] PROGRAMMABLE ] MOTOR STATUS ] MESSAGE Figure 5–1: MESSAGE SUMMARY MM2 Motor Manager 2 GE Power Management...
Page 71: A1 Data
74% FULL LOAD motor phase currents. When the value exceeds 100%, an overload con- dition exists. The MM2 eventually trips if the current is not reduced below 100% of FLC × SERVICE FACTOR. MM2 Motor Manager 2 GE Power Management...
Page 72: Process Data
This message displays the 4 to 20 mA analog input value scaled to the PROGRAMMABLE MESSAGE minimum and maximum values as specified in setpoints. The analog SAMPLE TEXT input name and units are user definable in the setpoints area of the MM2 messages. MM2 Motor Manager 2 GE Power Management...
Page 73: A2 Status
NOTE rotor, and ground fault trips. When a trip not listed above occurs and power is removed, the MM2 displays zero for pretrip values. MM2 Motor Manager 2 GE Power Management...
Page 74: Alarm Data
This occurs on an autotransformer starter start sequence when Contac- START tor A closes as expected but Contactor B fails to close. The Motor Greasing Interval time has been exceeded. MOTOR GREASING INTERVAL EXCEEDED MM2 Motor Manager 2 GE Power Management...
Page 75 ALARM The primary voltage measurement has dropped below the Alarm level. UNDERVOLTAGE ALARM The primary voltage measurement has exceeded the Alarm level. OVERVOLTAGE ALARM A Start Block is in effect. START BLOCK ALARM MM2 Motor Manager 2 GE Power Management...
Page 76: Motor Status
This message indicates the cause of the last stop operation. CAUSE OF LAST STOP This message indicates that the stop operation was caused externally EXTERNAL STOP to the MM2, i.e. The contactor coil de-energized MM2 Motor Manager 2 GE Power Management...
Page 77: A3 Inputs
This message also shows the function, if any, assigned to Interlock 4 Interlock 5 switch input status. INTERLOCK 5: OPEN NOT USED CLOSED: Interlock 5 switch closed; OPEN: Interlock 5 switch open This message also shows the function, if any, assigned to Interlock 5 MM2 Motor Manager 2 GE Power Management...
Page 78 Interlock 10 switch input status. INTERLOCK 10: OPEN NOT USED CLOSED: Interlock 10 switch closed; OPEN: Interlock 10 switch open This message also shows the function, if any, assigned to Interlock 10 5-10 MM2 Motor Manager 2 GE Power Management...
Page 79: A4 Statistics
UNDERPOWER TRIPS: If a stalled rotor trip occurs, this value is incremented. STALLED ROTOR TRIPS If a control trip occurs, this value is incremented (i.e. Plant Interlock, CONTROL COMMAND Local Isolator etc.) TRIPS: MM2 Motor Manager 2 5-11 GE Power Management...
Page 80 5.5 A4 STATISTICS 5 ACTUAL VALUES 5-12 MM2 Motor Manager 2 GE Power Management...
Page 81: Communications
300 bps). The MM2 has the capability of adding an odd or even parity bit if necessary. Modbus protocol can be implemented at any standard communication speed. The MM2 supports operation at 1200, 2400, 4800, 9600, 19200, and 57600 baud. MM2 Motor Manager 2 GE Power Management...
Page 82: Data Packet Format
MSByte first. The resulting message including CRC, when divided by the same polynomial at the receiver will give a zero remainder if no transmission errors have occurred. MM2 Motor Manager 2 GE Power Management...
Page 83: Algorithm
Yes: G (+) A —> A 8. is j = 8? No: go to 5. Yes: go to 9. 9. i+1 —> i 10.is i = N? No: go to 3. Yes: go to 11. 11.A —> CRC MM2 Motor Manager 2 GE Power Management...
Page 84: Timing
FUNCTION CODE 05 - Execute Operation • FUNCTION CODE 06 - Store Single Setpoint • FUNCTION CODE 07 - Read Device Status • FUNCTION CODE 08 - Loopback Test • FUNCTION CODE 10 - Store Multiple Setpoints MM2 Motor Manager 2 GE Power Management...
Page 85: Modbus Functions
6 operations = 6 bits: only 1 byte required DATA 1 (see definition below) bit set corresponding to command 13 54 83 CRC error code The DATA 1 definition is as follows: Data 1 = 08 (hex) = command operation # MM2 Motor Manager 2 GE Power Management...
Page 86: Function Code 03H
02 2B value in address 006B DATA 2 (see definition above) 00 00 value in address 006C DATA 3 (see definition above) 00 64 value in address 006D 54 83 CRC error code MM2 Motor Manager 2 GE Power Management...
Page 87: Function Code 04H
DESCRIPTION SLAVE ADDRESS message from slave 17 FUNCTION CODE read registers BYTE COUNT 1 register = 2 bytes DATA (see definition above) 00 00 value in address 0008 78 F3 CRC error code MM2 Motor Manager 2 GE Power Management...
Page 88: Function Code 05H
The commands that can be performed by the MM2 using function code 05 can also be initiated by using function code 10. See Section 6.2.8: FUNCTION CODE 10H on page 6–12 for an example of performing commands using function code 10. MM2 Motor Manager 2 GE Power Management...
Page 89: Function Code 06H
SLAVE ADDRESS message from slave 17 FUNCTION CODE store single setpoint DATA STARTING ADDRESS 10 20 setpoint address 1020 DATA 01 F4 data stored in setpoint address 1020 8E 47 CRC error code MM2 Motor Manager 2 GE Power Management...
Page 90: Function Code 07H
CRC error code SLAVE RESPONSE BYTES EXAMPLE DESCRIPTION SLAVE ADDRESS message from slave 17 FUNCTION CODE read device status DEVICE STATUS (see definition above) status = 00101100 (in binary) 22 28 CRC error code 6-10 MM2 Motor Manager 2 GE Power Management...
Page 91: Function Code 08H
EXAMPLE DESCRIPTION SLAVE ADDRESS message from slave 17 FUNCTION CODE loopback test DIAG CODE 00 00 must be 00 00 DATA 00 00 must be 00 00 E0 0B CRC error code MM2 Motor Manager 2 6-11 GE Power Management...
Page 92: Function Code 10H
EXAMPLE DESCRIPTION SLAVE ADDRESS message from slave 17 FUNCTION CODE store setpoints DATA STARTING ADDRESS 10 28 setpoint address 1028 NUMBER OF SETPOINTS 00 02 2 setpoints C7 90 CRC error code 6-12 MM2 Motor Manager 2 GE Power Management...
Page 93: Error Responses
The address referenced in the data field transmitted by the master is not an allowable address for the MM2. • 03 - ILLEGAL DATA VALUE The value referenced in the data field transmitted by the master is not within range for the selected data address. MM2 Motor Manager 2 6-13 GE Power Management...
Page 94: Applications
DESCRIPTION SLAVE ADDRESS message from slave 17 FUNCTION CODE store multiple setpoints DATA STARTING ADDRESS 11 60 setpoint address 1160 NUMBER OF SETPOINTS 00 02 2 setpoints 46 7A CRC error code 6-14 MM2 Motor Manager 2 GE Power Management...
Page 95: Storing Comm Address Using The Broadcast Command
EXAMPLE DESCRIPTION SLAVE ADDRESS message from slave responding FUNCTION CODE store setpoints DATA STARTING ADDRESS 11 60 setpoint address 1160 NUMBER OF SETPOINTS 00 03 3 setpoints 84 FB CRC error code MM2 Motor Manager 2 6-15 GE Power Management...
Page 96: Using The User Definable Memory Map
It is now possible to read these two data registers with one read, at addresses 0100H, 0101H. Address 0100H will contain Phase A Current. Address 0x0101 will contain DRIVE STATUS. 6-16 MM2 Motor Manager 2 GE Power Management...
Page 97: User Definable Memory Map Default Values
0051 Time to Reset min. 30083 0052 Pre Trip Phase A Current 30084 0053 Pre Trip Phase B Current Shading codes: Regular Polling Upon a Trip, Alarm, Stop Monitor as time permits MM2 Motor Manager 2 6-17 GE Power Management...
Page 98 Undercurrent Trips 30106 0069 Underpower Trips 30107 006A Stalled Rotor Trips 30108 006B Control Command Trips 30109 006C Interlock Counter Shading codes: Regular Polling Upon a Trip, Alarm, Stop Monitor as time permits 6-18 MM2 Motor Manager 2 GE Power Management...
Page 99: Memory Map
That is, each register address is the address of a two byte value. Addresses are listed in hexadecimal. Data values (Setpoint ranges, increments, factory values) are in decimal. MM2 Motor Manager 2 6-19 GE Power Management...
Page 100: Memory Map Table
R VALUE VALUE VALUE RANGE SCALE (CONVERTED) Actual Values (Input Registers) Addresses - 0000-0FFF PRODUCT 30001 0000 GE Product Device Code 30002 0001 Hardware Version Code current version 30003 0002 Main Software Version Code current version 30004 0003 Modification File Number mod.
Page 101 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-21 GE Power Management...
Page 102 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-22 MM2 Motor Manager 2 GE Power Management...
Page 103 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-23 GE Power Management...
Page 104 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-24 MM2 Motor Manager 2 GE Power Management...
Page 105 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-25 GE Power Management...
Page 106 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-26 MM2 Motor Manager 2 GE Power Management...
Page 107 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-27 GE Power Management...
Page 108 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-28 MM2 Motor Manager 2 GE Power Management...
Page 109 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-29 GE Power Management...
Page 110 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-30 MM2 Motor Manager 2 GE Power Management...
Page 111 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-31 GE Power Management...
Page 112 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-32 MM2 Motor Manager 2 GE Power Management...
Page 113 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-33 GE Power Management...
Page 114 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-34 MM2 Motor Manager 2 GE Power Management...
Page 115 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-35 GE Power Management...
Page 116 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-36 MM2 Motor Manager 2 GE Power Management...
Page 117 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-37 GE Power Management...
Page 118 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-38 MM2 Motor Manager 2 GE Power Management...
Page 119 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled MM2 Motor Manager 2 6-39 GE Power Management...
Page 120 ** – 1/Phase Current Scale Factor x A *** – 101 represents unlimited † – Minimum setpoint value represents OFF ~* – 0.1 x A when Hi resolution mode is disabled; 0.01 x A when enabled 6-40 MM2 Motor Manager 2 GE Power Management...
Page 121: Data Formats Table
3 = Manual and Auto 22 = Emergency Stop 4 = Hard-Wire Auto 23 = Underpower 24 = Analog Input High 25 = Analog Input Low 26 = Plant Interlock 27 = Process Interlock E MM2 Motor Manager 2 6-41 GE Power Management...
Page 122 0 = Line (A-B) Unsigned Integer: FFFF 1 = Phase (A-N) Interlock Stop / Latched Trip Unsigned Integer: Manual/Auto FFFF 0 = Interlock Stop 0 = Manual 1 = Latched Trip 1 = Auto 6-42 MM2 Motor Manager 2 GE Power Management...
Page 123 29 = Thermal Capacity Alarm 34 = Start Inhibit (Block) 30 = Motor Available 35 = Start Restore (Unblock) 31 = Motor Available Auto 32 = Overload 33 = Soft Starter Bypass Signed Integer FFFF MM2 Motor Manager 2 6-43 GE Power Management...
Page 124 Unsigned Integer: ESD Indication FFFF 3 = 9600 0 = OFF when healthy 4 = 19200 1 = ON when healthy Unsigned Integer: FFFF Normally Open / Normally Closed 0 = N.O. 1 = N.C. 6-44 MM2 Motor Manager 2 GE Power Management...
Page 125 Not Used 2000 Interlock Input 10 0200 Not Used 4000 Stop 0400 Not Used 8000 Start A 0800 Start B 1000 Local Isolator N/O 2000 Contactor A N/O 4000 Contactor B N/O 8000 MM2 Motor Manager 2 6-45 GE Power Management...
Page 126 Maximum Drive Stopped Time 0800 Not Used 1000 Exceeded Alarm Not Used 2000 Internal Fault Alarm 1000 Not Used 4000 Thermal Capacity Alarm 2000 Not Used 8000 UnderVoltage Alarm 4000 Overvoltage Alarm 8000 6-46 MM2 Motor Manager 2 GE Power Management...
Page 127 0400 Process Interlock I 0800 Not Used 0800 Process Interlock J 1000 Not Used 1000 Open Control Circuit 2000 Not Used 2000 Undervoltage 4000 Not Used 4000 Overvoltage 8000 Not Used 8000 MM2 Motor Manager 2 6-47 GE Power Management...
Page 128 0200 Not Used 0400 Not Used 0800 Not Used 1000 Not Used 2000 Not Used 4000 Not Used 8000 F113 Unsigned Integer: Auto Mode FFFF Definition 0 = Serial 1 = Hard-Wire 6-48 MM2 Motor Manager 2 GE Power Management...
Page 129: Testing
All functions are firmware driven and this testing is required only to verify correct firmware/hardware interaction. The tests described in this chapter can be repeated and modified using setpoints and current levels more closely suited to the actual installation. MM2 Motor Manager 2 GE Power Management...
Page 130 7.1 INJECTION TESTING 7 TESTING Figure 7–1: SECONDARY INJECTION TEST SETUP MM2 Motor Manager 2 GE Power Management...
Page 131: Functional Tests
= RMS current in any phase with maximum deviation from the average current I = average of the 3 phase currents; I = motor full load current = phase A current; I = phase B current; I = phase C current MM2 Motor Manager 2 GE Power Management...
Page 132: Unbalance Examples
------------------- - ---------------------------- 40 % Since unbalance is greater than 30%, a SINGLE PHASE trip will occur if this condition persists for longer than 5 seconds and the AUX Relay 2 will energize. MM2 Motor Manager 2 GE Power Management...
Page 133: Ground Fault Current Functions
STATUS and using the MESSAGE LEFT/RIGHT keys, view the status of each input one at a time. Open and close each switch input and note that the display reflects the present status of the input terminals. The status is shown as either OPEN or CLOSED. MM2 Motor Manager 2 GE Power Management...
Page 134: Thermistor Input Tests
Decrease control voltage to zero and then return voltage to its normal operating level. Verify that the MM2 resumes its normal operation. Check the power fail memory circuit by verifying that set- points and statistical data have not been altered. MM2 Motor Manager 2 GE Power Management...
Page 135: Mm2Pc Software
® MM2PC can be installed from either the GE Power Management Products CD or the GE Power Management website at www.GEindustrial.com/pm. If you are using legacy equipment without web access or a CD drive, 3.5” floppy disks can be ordered from the factory.
Page 136: Checking If Installation/Upgrade Is Required
2. Go to the GE Power Management website at www.GEindustrial.com/pm (preferred method). 3. Select the Software menu item then select MM2 Motor Manager 2 from the list of products. 4. Verify that the software version shown on this page is identical to the installed version as shown ®...
Page 137: Installing Mm2Pc
, installation from the web is preferred. Figure 8–1: GE POWER MANAGEMENT WELCOME SCREEN 2. Select the Index by Product Name item from the main page then select MM2 Motor Manager 2 from the product list to open the MM2 product page.
Page 138: Configuration
8.3 CONFIGURATION 8.3.1 CONFIGURING MM2PC 1. Connect a GE Power Management RS232/485 converter module to the COM1 or COM2 PC port and wire the RS485 +/– terminals on the box to MM2 terminals 25/26. Be careful to observe cor- rect polarity of the RS485 connections. See Figure 2–6: RS485 TERMINATION on page 2–7 for connection details.
Page 139 Figure 2–6: RS485 TERMINATION on page 2–7. • the RS485 wire polarity is correct and is connected to the right terminals Once the communication has been established click OK to return to the main screen MM2 Motor Manager 2 GE Power Management...
Page 140: Mm2Pc ® Program Menus
Opens the Help Window Hang up Dial Sets the computer communication parameters Sends current file to the printer Saves the file Opens an existing file 807699A2.CDR Create a new file ® Figure 8–3: MM2PC MENU STRUCTURE MM2 Motor Manager 2 GE Power Management...
Page 141: Using Mm2Pc
Enter the file name for the saved setpoints or select a displayed file name for updating. All MM2 setpoint files should have the extension MM2 (e.g., MOTOR4.MM2). Click OK to proceed. ® 3. MM2PC reads the entered setpoint values and saves them in the selected file. MM2 Motor Manager 2 GE Power Management...
Page 142: Mm2 Firmware Upgrades
Modification Number (000 = none) GE Power Management use only Firmware Revision Required MM2 hardware revision Product code (60 = MM2 Motor Manager 2) ® 3. MM2PC automatically lists all filenames beginning with 71. Select the appropriate file and click Start Upload to continue.
Page 143: Loading Setpoint Files
3. Select the File > Send Info To Relay menu item. MM2PC will prompt to confirm or cancel the setpoint file load. Click Yes to download the setpoints to the MM2 or No to cancel. MM2 Motor Manager 2 GE Power Management...
Page 144: Entering Setpoints
Cancel to return to the previous values, or Store to send the values to the MM2 (if con- nected). Clicking on Help displays help topics related to the setpoints being modified. 8-10 MM2 Motor Manager 2 GE Power Management...
Page 145: Viewing Actual Values
3. Select the Actual > Trending menu item to open the trending window (see figure on following page). Press the Setup button on the lower left of the window to enter the Graph Attribute page. MM2 Motor Manager 2 8-11...
Page 146 Click and hold the view the desired graphs. Zoom In, Zoom Out left mouse button and drag the cursor line to the new location Figure 8–4: TRENDING VIEW 8-12 MM2 Motor Manager 2 GE Power Management...
Page 147: Chassis Mount Units
2. Select the Communication > Set Slave Address menu item and follow the on screen instruc- tions to store the communication address of the MM2. When completed, select OK to exit. MM2 Motor Manager 2 8-13 GE Power Management...
Page 148 Computer menu item again and click ON in the Communication Control section. The status should now read “Program is now talking to Multilin device.” 15. Select OK to exit the Communication/Computer window. 8-14 MM2 Motor Manager 2 GE Power Management...
Page 149: Starter Types
This causes the Contactor A output relay to open. If feedback remains at the Contactor A Status N.O. input for more than 1 second after opening the Contactor A output relay, a WELDED CONTACTOR alarm occurs. MM2 Motor Manager 2 GE Power Management...
Page 150 9.1 FV NON-REVERSING STARTER 9 STARTER TYPES Figure 9–2: FV NON-REVERSING STARTER WIRING DIAGRAM MM2 Motor Manager 2 GE Power Management...
Page 151: Fv Reversing Starter
The TRANSFER TIME setpoint appears if the FV REVERSING starter type has been selected. This delay occurs when the motor is running in the forward direction (Contactor A) and the MM2 receives a Start B command to run in the reverse direction (Contactor B) and vice versa. MM2 Motor Manager 2 GE Power Management...
Page 152: Mm2 Sequences
This will cause the currently closed relay to open. If feedback remains at the Contactor (A or B) Status N.O. input more than one second after opening Contactor A or B output relays, a WELDED CONTACTOR alarm will occur. MM2 Motor Manager 2 GE Power Management...
Page 153 9 STARTER TYPES 9.2 FV REVERSING STARTER Figure 9–4: FV REVERSING STARTER MM2 Motor Manager 2 GE Power Management...
Page 154: Two Speed Starter
The HIGH SPEED START BLOCK setpoint appears when the STARTER TYPE has been selected as TWO- SPEED. When set to DISABLED, the MM2 allows the motor to be started directly to high speed. When set to ENABLED, the motor must be started in low-speed before switching to high-speed. MM2 Motor Manager 2 GE Power Management...
Page 155: Mm2 Sequences
Contactor A and B output relays to open. If feedback remains at the Contactor A or B Status N.O. input more than one second after opening the Contactor A or B output relays, a WELDED CONTACTOR alarm will occur. MM2 Motor Manager 2 GE Power Management...
Page 156 9.3 TWO SPEED STARTER 9 STARTER TYPES Figure 9–6: TWO SPEED ONE WINDING CONSTANT OR VARIABLE TORQUE STARTER MM2 Motor Manager 2 GE Power Management...
Page 157 9 STARTER TYPES 9.3 TWO SPEED STARTER Figure 9–7: TWO SPEED ONE WINDING CONSTANT HORSEPOWER STARTER MM2 Motor Manager 2 GE Power Management...
Page 158 9.3 TWO SPEED STARTER 9 STARTER TYPES Figure 9–8: TWO SPEED TWO WINDING STARTER 9-10 MM2 Motor Manager 2 GE Power Management...
Page 159: Slip Ring Starter
The STAGE ONE SHORTING TIME setpoint appears when the STARTER TYPE has been selected as SLIP RING. It represents the time delay from the closure of Contactor A until the closure of Contactor B. MM2 Motor Manager 2 9-11 GE Power Management...
Page 160: Mm2 Sequences
This will cause Contactor A and B output relays to open. If feedback remains at the Contactor A or B Status N.O. input more than one second after opening the Contactor A or B output relays, a WELDED CONTACTOR alarm will occur. 9-12 MM2 Motor Manager 2 GE Power Management...
Page 161 9 STARTER TYPES 9.4 SLIP RING STARTER Figure 9–10: SLIP RING STARTER MM2 Motor Manager 2 9-13 GE Power Management...
Page 162: Primary Resistance Starter
This STAGE ONE SHORTING TIME setpoint appears when the STARTER TYPE setpoint is selected as SLIP RING. This is the time delay from the closure of Contactor A until the closure of Contactor B. 9-14 MM2 Motor Manager 2 GE Power Management...
Page 163: Mm2 Sequence
WELDED CONTACTOR alarm will occur. A separate voltage transformer must be used for the VT input to accurately measure the voltage at the motor. See Figure 9–12: PRIMARY RESISTANCE STARTER on page 9–16. MM2 Motor Manager 2 9-15 GE Power Management...
Page 164 9.5 PRIMARY RESISTANCE STARTER 9 STARTER TYPES Figure 9–12: PRIMARY RESISTANCE STARTER 9-16 MM2 Motor Manager 2 GE Power Management...
Page 165: Inverter Starter
S1 CONFIGURATION\STARTER\RAMP DOWN TIME: 1 to 125 sec. The RAMP UP TIME and RAMP DOWN TIME setpoints appear when the STARTER TYPE is selected as INVERTER. See the next section for details on functionality. MM2 Motor Manager 2 9-17 GE Power Management...
Page 166: Mm2 Sequences
DRIVE FAILED TO STOP alarm will be generated. If feedback remains at Contactor A Status N.O. input more than one second after opening the Con- tactor A output relay, a WELDED CONTACTOR alarm will occur. 9-18 MM2 Motor Manager 2 GE Power Management...
Page 167 9 STARTER TYPES 9.6 INVERTER STARTER Figure 9–14: INVERTER (VARIABLE SPEED DRIVE) STARTER MM2 Motor Manager 2 9-19 GE Power Management...
Page 168: Autotransformer Open Transition Starter
To program the MM2 for autotransformer open transition starter, set: S1 CONFIGURATION\STARTER\STARTER TYPE: AUTOTRANS OPN TRANS S1 CONFIGURATION\STARTER\CHANGE OVER TIME: 1 to 125 sec. S1 CONFIGURATION\STARTER\CONTACTOR SEQUENCE: 1S-2S, 2S-1S S1 CONFIGURATION\STARTER\STARTS PER HOUR: 1 to 40 9-20 MM2 Motor Manager 2 GE Power Management...
Page 169: Mm2 Sequences
TROL CIRCUIT alarm will occur. This will cause Contactors A, B and the auxiliary relay to open. If feedback remains at any of the Status N.O. inputs for more than one second after opening the its respective relay, a WELDED CONTACTOR alarm will occur. MM2 Motor Manager 2 9-21 GE Power Management...
Page 170 9.7 AUTOTRANSFORMER OPEN TRANSITION STARTER 9 STARTER TYPES Figure 9–16: AUTOTRANSFORMER OPEN TRANSITION TWO WINDING 9-22 MM2 Motor Manager 2 GE Power Management...
Page 171 9 STARTER TYPES 9.7 AUTOTRANSFORMER OPEN TRANSITION STARTER Figure 9–17: AUTOTRANSFORMER OPEN TRANSITION THREE WINDING MM2 Motor Manager 2 9-23 GE Power Management...
Page 172: Autotransformer Closed Transition Starter
S1 CONFIGURATION\STARTER\CHANGE OVER TIME: 1 to 125 sec. S1 CONFIGURATION\STARTER\CONTACTOR SEQUENCE; 1S-2S, 2S-1S S1 CONFIGURATION\STARTER\STARTS PER HOUR: 1 to 40 S3 PROCESS\PROGRAMMABLE INPUTS\INTERLOCK INPUT 10: AUTOTRANS 2S CONTACT S4 CONTROL\AUX RELAY 1 CONFIG\AUX RELAY 1 FUNCTION: AUTOTRANSFORMER 2S 9-24 MM2 Motor Manager 2 GE Power Management...
Page 173: Mm2 Sequences
This will cause Contactors A, B and the auxiliary relay to open. If feedback remains at any of the Status N.O. inputs for more than one second after opening its respective relay, a WELDED CONTACTOR alarm will occur. MM2 Motor Manager 2 9-25 GE Power Management...
Page 174 9.8 AUTOTRANSFORMER CLOSED TRANSITION STARTER 9 STARTER TYPES Figure 9–19: AUTOTRANSFORMER CLOSED TRANSITION TWO WINDING 9-26 MM2 Motor Manager 2 GE Power Management...
Page 175 9 STARTER TYPES 9.8 AUTOTRANSFORMER CLOSED TRANSITION STARTER Figure 9–20: AUTOTRANSFORMER CLOSED TRANSITION THREE WINDING MM2 Motor Manager 2 9-27 GE Power Management...
Page 176: Part Winding Starter
Contactor A and B output relays to open. If feedback remains at Contactor A or B Status N.O. input more than one second after opening the Contactor A or B output relays, a WELDED CONTACTOR alarm will occur. 9-28 MM2 Motor Manager 2 GE Power Management...
Page 177: Wye-Delta Open Transition Starter
The CHANGE OVER TIME setpoint appears only if STARTER TYPE is selected as WYE DELTA OPN TRANS or WYE DELTA CLS TRANS. See CHANGE OVER CURRENT setpoint description above for operation. MM2 Motor Manager 2 9-29 GE Power Management...
Page 178: Mm2 Sequences
Contactor A relay, an OPEN CONTROL CIRCUIT alarm will occur. This will cause All starter out- put relays to open. If feedback remains at the Wye Delta 1M contact interlock input more than one second after opening the AUX. output relay, a WELDED CONTACTOR alarm will occur. 9-30 MM2 Motor Manager 2 GE Power Management...
Page 179 9 STARTER TYPES 9.10 WYE-DELTA OPEN TRANSITION STARTER Figure 9–21: WYE-DELTA OPEN TRANSITION STARTER MM2 Motor Manager 2 9-31 GE Power Management...
Page 180: Wye-Delta Closed Transition Starter
Wye (Contactor A) to delta (Contactor B) will occur. If this Setpoint is set to OFF, 100% of the CHANGE OVER TIME must expire before the Wye to delta transition will occur. 9-32 MM2 Motor Manager 2 GE Power Management...
Page 181: Mm2 Sequence
If feedback remains at Contactor A Status N.O., Contactor B Status N.O. or WYE DELTA 1M CON- TACT inputs for more than one second after opening the corresponding output relay, a WELDED CONTACTOR alarm will occur. MM2 Motor Manager 2 9-33 GE Power Management...
Page 182 9.11 WYE-DELTA CLOSED TRANSITION STARTER 9 STARTER TYPES Figure 9–23: WYE-DELTA CLOSED TRANSITION STARTER 9-34 MM2 Motor Manager 2 GE Power Management...
Page 183: Duty/Standby Starter
7. Close Contactor B relay – Motor B is now running. STOP/TRIP sequence: 1. Stop command received by the MM2 or a trip occurs. 2. Open the active contactor A or B. MM2 Motor Manager 2 9-35 GE Power Management...
Page 184: Notes
B command will always start motor B and a serial start A will always start motor A. This is true for AUTO START A and AUTO START B programmable interlock functions as well. 9-36 MM2 Motor Manager 2 GE Power Management...
Page 185 9 STARTER TYPES 9.12 DUTY/STANDBY STARTER Figure 9–24: DUTY/STANDBY STARTER MM2 Motor Manager 2 9-37 GE Power Management...
Page 186 WELDED CONTACTOR alarm occurs. If feedback is not received from the BYPASS CONTACT interlock input within one second of closing Aux output relay, an OPEN CONTROL CIRCUIT alarm occurs. This will cause Contactor A and B output relays to open. 9-38 MM2 Motor Manager 2 GE Power Management...
Page 187 9 STARTER TYPES 9.13 SOFT STARTER Figure 9–25: SOFT STARTER MM2 Motor Manager 2 9-39 GE Power Management...
Page 188: Soft Starter
9.13 SOFT STARTER 9 STARTER TYPES 9-40 MM2 Motor Manager 2 GE Power Management...
Page 189: Description
If feedback is not received by the Contactor A relay Status N.O. inputs within 1 second of closing Contactor A output relay, an OPEN CONTROL CIRCUIT alarm will occur. This will cause Contactor A output relay to open. MM2 Motor Manager 2 10-1 GE Power Management...
Page 190 10.1 TWO WIRE CONTROL 10 CONTROL WIRE APPLICATIONS Figure 10–1: TWO WIRE CONTROL 10-2 MM2 Motor Manager 2 GE Power Management...
Page 191: Hand/Off/Auto Configuration 10.2.1 2-Wire Hand / 2-Wire Auto
In the case of a FACEPLATE STOP trip, the start signal to terminal 12 should be removed if restart- ing is not desired. When the reset key is pressed on the MM2, the motor will be restarted based on terminal 12. MM2 Motor Manager 2 10-3 GE Power Management...
Page 192 10.2 HAND/OFF/AUTO CONFIGURATION 10 CONTROL WIRE APPLICATIONS Figure 10–2: HOA TWO-WIRE HAND / TWO-WIRE AUTO 10-4 MM2 Motor Manager 2 GE Power Management...
Page 193: 3-Wire Hand / 2-Wire Auto
In the case of a faceplate stop trip, the start signal to terminal 12 should be removed if restarting is not desired. When the reset key is pressed on the MM2, the motor will be restarted based on termi- nal 12. MM2 Motor Manager 2 10-5 GE Power Management...
Page 194 10.2 HAND/OFF/AUTO CONFIGURATION 10 CONTROL WIRE APPLICATIONS Figure 10–3: HOA THREE WIRE HAND / TWO WIRE AUTO 10-6 MM2 Motor Manager 2 GE Power Management...
Page 195: Wire Hand / 3 Wire Auto
If feedback is not received by the Contactor A Status N.O. input within one second of closing Contac- tor A output relay, an OPEN CONTROL CIRCUIT alarm will occur. This will cause Contactor A output relay to open. MM2 Motor Manager 2 10-7 GE Power Management...
Page 196 10.2 HAND/OFF/AUTO CONFIGURATION 10 CONTROL WIRE APPLICATIONS Figure 10–4: HOA THREE WIRE HAND / THREE WIRE AUTO 10-8 MM2 Motor Manager 2 GE Power Management...
Page 197: Hand/Auto Configuration 10.3.1 3-Wire Hand / 2-Wire Auto
When the MM2 reset key is pressed, the motor will be restarted based on terminal 43. The STOP button at the motor remains active in the auto mode. MM2 Motor Manager 2 10-9 GE Power Management...
Page 198 10.3 HAND/AUTO CONFIGURATION 10 CONTROL WIRE APPLICATIONS Figure 10–5: HA THREE WIRE HAND / TWO WIRE AUTO 10-10 MM2 Motor Manager 2 GE Power Management...
Page 199: Mm2 Commissioning
Ground CT Primary Amps 100 A Ground Fault Alarm Level 50:0.025 Hi-Res Display Disable Gnd Fault Alarm Delay On Run 10 sec. VT Primary Voltage Gnd Fault Alarm Dly On Start 10 sec. MM2 Motor Manager 2 GE Power Management...
Page 200 Undervoltage Trip Level Startup Override Delay 5 0 sec. Undervoltage Trip Delay 10 sec. Running Override Delay 5 0 sec. Overvoltage Alarm Level Operation 5 Stop Overvoltage Alarm Delay 10 sec. Instantaneous Alarm 5 Disable MM2 Motor Manager 2 GE Power Management...
Page 201 Analog Alarm HIgh Delay 5 sec. IL10 Switch Type N.O. Analog Trip Low Level Local Isolator Disable Analog Trip Low Override 5 sec. Auto Permissive Indication Manual Analog Trip Low Delay 5 sec. MM2 Motor Manager 2 GE Power Management...
Page 202 De-energize on Motor Stop Dly 5 sec. Serial Number Aux. 2 Operation Non-failsafe Delay Contactor G/F Trip By 0 ms S5: MONITORING PLANT CONDITION Motor Greasing Interval Contactor Inspection Max Motor Stopped Time MM2 Motor Manager 2 GE Power Management...
Page 203: Questions And Answers
MM2 is in the Two Wire mode as there can be a constant start signal from the two wire device. Use the Open Control Circuit trip feature to prevent the toggling of the motor contactor. MM2 Motor Manager 2 GE Power Management...
Page 204 MM2 parity setpoint master parity settings If the problem persists, call GE Power Management for technical support. Can the MM2 interface with an external analog device? Yes. The MM2 has a single analog input that can be used to monitor an external transducer.
Page 205: Checklist
APPENDIX C DO’S AND DONT’SC.1 DO’S AND DONT’S C.1.1 CHECKLIST For proper and reliable operation of the GE Power Management MM2 Motor Manager 2, it is impera- tive that the steps, recommendations and practices listed below be adhered to at all times. This DO’s and DON’Ts checklist has been compiled as a result of years of trouble free operation by a variety of...
Page 206 (Terminals 15 and 16) within 1 second of closing the contactor. If this feed- back is not received, the MM2 will open the contactor instead of sealing it in, and will alarm with an OPEN CONTROL CIRCUIT. MM2 Motor Manager 2 GE Power Management...
Page 207: Asymmetrical Current
Depending on when the voltage is applied, the RMS current may vary by as much as 1.73 times. Figure D–2: MAXIMUM CURRENT WHEN VOLTAGE APPLIED AT ZERO CROSSING The asymmetrical RMS current is defined by: RMSassym ⋅ Squaring both sides gives: ⋅ RMSassym ⋅ Which results in: ⋅ RMSassym MM2 Motor Manager 2 GE Power Management...
Page 208 CTs would output. If there is a resid- ual connection for ground fault detection, that element could operate when asymmetrical currents are present. MM2 Motor Manager 2 GE Power Management...
Page 209: Mm2 Ct Withstand
There are seven voltage ratings: 10, 20, 50, 100, 200, 400, and 800. If a CT comes close to a higher rating, but does not meet or exceed it, then the CT must be rated to the lower value. MM2 Motor Manager 2 GE Power Management...
Page 210 Therefore, the secondary winding resistance must always be included with the excitation curves, or the information is incomplete. MM2 Motor Manager 2 GE Power Management...
Page 211 Evaluation of CT performance is best determined from the excitation curves. They present the com- plete story and eliminate any guess work. Most CT manufacturers will provide excitation curves upon request. Figure E–2: EXCITATION CURVES METHOD MM2 Motor Manager 2 GE Power Management...
Page 212 E.1 CT ISOLATION APPENDIX E MM2 Motor Manager 2 GE Power Management...
Page 213: List Of Figures
4–3: NEMA COMPATIBLE TIME/OVERCURRENT CURVES........4-11 IGURE 5–1: MESSAGE SUMMARY ..................5-2 IGURE 7–1: SECONDARY INJECTION TEST SETUP............. 7-2 IGURE 8–1: GE POWER MANAGEMENT WELCOME SCREEN ..........8-3 IGURE 8–2: COMMUNICATION / COMPUTER WINDOW ............8-4 IGURE ® 8–3: MM2PC MENU STRUCTURE................
Page 214: List Of Tables
ABLE : 6–11 MM2 MEMORY MAP USER DEFINABLE OUTPUTS ........6-17 ABLE : 6–12 MODBUS MEMORY MAP .................. 6-20 ABLE : 6–13 DATA FORMATS ....................6-41 ABLE : A–1 MM2 COMMISSIONING ..................A-1 ABLE MM2 Motor Manager 2 GE Power Management...
Page 215 1999 I the undersigned, hereby declare that the equipment specified above conforms to the above Directives and Standards Full Name: John Saunders Position: Manufacturing Manager Signature: Place: GE Power Management Inc. Date: 09/28/1999 MM2 Motor Manager 2 GE Power Management...
Page 216 24 months from date of shipment from factory. In the event of a failure covered by warranty, GE Power Management will undertake to repair or replace the relay providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory.
Page 217 FULL LOAD CURRENT ............A-1 ...........4-12 COMMUNICATIONS FULL VOLT REVERSING STARTER ....9-3, 9-5 error checking FULL-VOLT NON-REVERSING STARTER ............6-2 ..9-1, 9-2 failure setpoints FUNCTIONAL TESTS ............4-6 ..........7-3 MM2PC ..............8-13 GE Power Management MM2 Motor Manager 2...
Page 218 ..... 9-14, 9-16 MM2PC PROCESS STOP ............. 4-25 communications ............8-13 PROGRAMMABLE SWITCH INPUTS ......2-6 configuring .............. 8-4 setpoints ............8-9, 8-10 MOD NUMBER ............4-34 MODBUS ..............1-1 data formats QUESTIONS AND ANSWERS ............6-41 ........ B-1 MM2 Motor Manager 2 GE Power Management...
Page 219 ......4-15 STOPPED TIME ............. 5-11 SUPPLY VOLTAGE ........... 2-5, 4-3 SWITCH COMMON ..........2-8 WARRANTY .............. G-2 SWITCH INPUTS ..........2-6, C-2 WYE-DELTA STARTER ....9-29, 9-31, 9-32, 9-34 SYSTEM FREQUENCY ..........4-5 GE Power Management MM2 Motor Manager 2...
Page 220 INDEX MM2 Motor Manager 2 GE Power Management...

GE MOTOR MANAGER 2 Instruction Manual

1 Introduction

2 Installation

3 Hardware

4 Setpoints

5 Actual Values

6 Communications

7 Testing

8 Mm2Pc Software

9 Starter Types

10 Control Wire

Mm2 Commissioning

Commisioning Summary

Asymmetrical Current

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Summary of Contents for GE MOTOR MANAGER 2

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