MM3 Intelligent MCC Controller

  MM3 Intelligent MCC Controller MM3 Intelligent MCC Controller

  Display model for local interface

  1 analog output 4-20 mA

  Monitoring and Metering ■

  Display phase current, ground current, thermal capacity, analog input, power, energy, etc.

  ■

  Trip record and pre-trip values

  ■

  Maintenance information

  ■

  Self-test

  User Interfaces ■

  RS485 ModBus ^® Port, 1200 - 57,600 bps

  ■

  ■

  1 analog input

  Up to 10 status LEDs

  Features ■

  Reduces MCC and field wiring

  ■

  Replaces timers, relays, protective devices, meters, panel indicators

  ■

  Integrated primary CTs up to 250 FLC

  ■

  Local faceplate

  ■

  Standard removable rear terminals

  ■

  ■

  ■

  The Motor Manager 3 (MM3) combines control functions and comprehensive motor protection in one package. This compact device provides sophisticated control and protective relaying at significant cost savings over the discrete devices normally found in a low voltage motor control center (MCC). One MM3 is required for every starter in the MCC. The contactors can be energized and de-energized using the MM3’s direct wired inputs, or via the serial port. A total of 6 fixed and 10 programmable switch inputs are available. A wide range of starter types may be controlled by the MM3 using two contactor outputs and two auxiliary outputs. One analog input can be programmed by the user as well as one analog out. A programmable undervoltage auto restart function is available.

  Contactor failure

  Motor protection features for the most common causes of failure are provided to prevent costly shut downs and rewinds. These include overload, phase unbalance, locked rotor (stall), ground fault, undercur- rent and underpower. A thermistor input can also be provided to protect a hot winding. The relay checks the contactor status at start and stop commands to indicate contactor fail- ure. Alarms are provided to warn of additional abnormal conditions. The MM3 has two mounting configu- rations: chassis mount no display, and panel mount local display. Both models have a 2 wire RS485 ModBus ^®

  RTU protocol communication port operating at up to 57,600 bps. The panel mount model has a stop key and 8 status LEDs, a 2 by 20 line display, 2 additional command mode LEDs, and a keypad, which allows full local access without a computer.

  DESCRIPTION Integrated process and electrical control with protection for low voltage motors.

  9 Applications ■

  Low voltage motor control centers

  ■

  Integrated process & electrical control

  Protection ■

  Overload

  ■

  Phase unbalance

  ■

  ■

  Inputs: 6 fixed, 10 programmable

  Locked/stalled rotor

  ■

  Ground fault

  ■

  Hot winding thermistor

  ■

  Undercurrent/underpower

  Control ■

  Undervoltage auto restart

  ■

  Outputs: 2 contactor, 2 programmable

  ■

  Remote Touchscreen graphical interface (connects up to 32 units) The MM3 is available with different protection and control features depending on the model ordered as outlined in the Model Table (page 208).

  Overload (49/51)

  An overload trip is caused when the thermal capacity value equals 100%. Thermal capacity used is calculated from accumulated I ² t value and chosen overload curves. True RMS current sensing ensures correct response to the heating effect of harmonics. One of 12 different I ² t time-overcurrent over- load curves may be selected from 8 standard curves and 4 NEMA compati- ble curves.

  49 Hot winding (thermistor) – option 3

  59 Overvoltage

  27 Undervoltage

  37 Undercurrent/underpower

  48 Locked rotor/stalled rotor

  50G/51G Ground fault

  46 Phase unbalance (single phase) — Welded/open contactor

  49/51 Overload

  _{THERMISTOR MOTOR LOAD} WINDING THERMISTOR ^{49 51G 51 49 37 46 59 27 4-20mA INPUT CONTROL INPUTS AUX 2 RELAY} _{RS485 REMOTE COMMUNICATION 1200-57K6 BAUD} ^{PROCESS PLC OR TRANSDUCER} _809751A2.dwg ^{AUX 1 RELAY CONTACTOR B (REVERSE/DELTA) CONTACTOR A (FORWARD/WYE)} MOTOR MANAGER 3

  

52

480 VOLT BUS

  CURVE # _{CLASS 30 CLASS 20 CLASS 15 CLASS 10}

  1 _{0.1 0.5 1 2 3 4 5 6 7 89 10 20 50 100 807903D4.cdr} TIME IN SECONDS MULTIPLE OF PICKUP CURRENT (PER UNIT)

  The MM3 can control a variety of starter types using the contactor outputs. Contactor A is used for full voltage non-reversing starters. Contactor A and B are used for revers- ing, two speed, autotransformer, inverter, wye-delta open transition, slip ring, and part winding starters. Contactors A, B, and one auxiliary output are used for the reduced volt- age wye-delta closed transition starter. ^{100000 10000 1000 100} ₁₀

  Starters

  The MM3 has programmable alarms to warn of a number of abnormal condi- tions. These include: acceleration time exceeded, abnormal inverter starter, incomplete start, motor greasing, contactor inspection, motor stop time, analog input, and process interlock switch open.

  Additional Alarms

  The ground fault level is measured as a percentage of FLC. Ground overcurrent can be detected either from the resid- ual connection of the phase CTs or from the zero sequence CT. A delay time is set to prevent nuisance alarms from momentary surges. Both a ground fault alarm and trip are provid- ed. The alarm can be set below the trip level to get an early warning of insula- tion breakdown.

  Of the 12 overload curves available 4 are NEMA compatible time/current overload curves.

  Phase Unbalance (46)

  The MM3 monitors the percentage unbalance in the motor phase currents. If a phase current unbalance of greater than 15% exists for more than 5 seconds an alarm is generated. If a phase current unbalance of greater than 30% exists for more than 5 seconds a trip occurs.

  Locked/Stalled Rotor (48)

  Mechanical equipment such as pumps or fans can be quickly damaged if it gets jammed resulting in a locked rotor stall. The MM3 will trip when the running current exceeds the stalled rotor trip level after the programmed time delay. If stall protection is not required this feature may be set to ‘OFF’. This feature is disabled during the inrush of motor starting.

  The MM3 monitors the contactor while performing start and stop commands. If the contactor does not change status (open to closed or closed to open) an ‘open control circuit’ or ‘welded contactor’ alarm is triggered.

  Ground fault (50G/51G)

  Overtemperature (49)

  An input from motor winding thermis- tors is available. The MM3 can accept both positive temperature coefficient (PTC) and negative temperature coeffi- cient (NTC) sensors. A thermistor level can be selected for both alarm and trip.

  Cooling Time

  After an overload trip the thermal capacity value will decrease exponen- tially to model the cooling characteristic of the motor. An over- load trip can normally be reset when the thermal capacity value decreases to 15%. A stopped motor cooling time can be set to determine how long it takes for a stopped motor to reach steady state ambient temperature from its maximum allowable temperature.

  

Undercurrent/Underpower (37)

  Both undercurrent and underpower alarms and trips are provided with time delays. Protection against failed shearpin, loss of pump flow, etc., which may result in only a small change in current is provided by the under power alarm.

  Contactor Failure

9 PROTECTION AND CONTROL

FUNCTIONAL BLOCK DIAGRAM

DEVICE PROTECTION

FUSE CONTACTOR PHASE PT PHASE CT GROUND CT

MONITORING AND METERING

  Metering at which a number of routine mainte- Undervoltage Auto Restart

  nance tasks should be performed. It is possible to automatically restart The MM3 meters and displays:

  When these times are exceeded an the motor after a momentary power

  ■ RMS current of each phase

  alarm is generated. These include: loss if this feature is enabled. When the

  Ground fault leakage current ■

  control voltage drops below the

  ■ Motor greasing interval: number of

  dropout voltage the contactors are de- ■ Motor load as a % of full load current

  hours after which motor bearings

  energized. The MM3 can initiate timers

  

Thermal capacity used (%) according

■ must be lubricated ₂

  to restart selected drives upon the

  to I t history and chosen overload Contactor inspection: number of ■

  return of supply voltage. If control volt-

  

curve; hot/cold ratio is used to model

starts after which contactor contacts

  age is restored within the programmed

  heating when running below full must be inspected for wear

  restart time it will be restarted immedi- motor current

  ■ Maximum motor stopped time: The

  ately. If the control voltage takes longer

  ■ % unbalance maximum number of hours that the

  to be restored the MM3 can be

  Power (kW) ■ motor can be left not running

  programmed to attempt to restart the

  ■ Energy (kWh) motor after a programmed time delay.

  Networking Voltage

  ■

  Gateway solutions exist to connect the

  Outputs ■ Analog input

  MM3 to installed protocols in a given The MM3 has one or two contactors (A system. The X-Link is a gateway prod- and B). There are also two auxiliary Trip Record uct from SST (www.sstech.on.ca). This programmable output relays available When the MM3 issues a trip command product makes it possible to transfer on the MM3. These two outputs can be a trip record is generated. This includes data between two communications

  9

  assigned to any one of 31 functions. the cause of the trip and pre-trip actual networks. Networks such as ModBus, values.

  ModBus Plus, ProfiBus, DeviceNet,

  Switched Inputs

  Data Highway Plus, GE Fanuc, The MM3 has up to 6 fixed control Statistics and Maintenance ControlNet and DNP are supported. inputs. These are used for start A and The MM3 records statistical data about

  B, stop, local isolator, and contactor A relay and motor operation. The MM3 and B status. The MM3 also has up to also allows the user to set the interval 10 programmable switch inputs. Each input can have one of 33 interlock func- tions assigned to it. Once a function is X-Link makes it possible to transfer data between two communications networks. assigned to one interlock input that _{PC EQUIPPED WITH:} function cannot be assigned to any _{SST X-LINK CONFIGURATION SOFTWARE MICROSOFT EXCEL SST 5136-PFB PROFIBUS CARD} other interlock input. _{SST PROFIBUS CONFIGURATION SOFTWARE SST DP MASTER DDE SERVER SOFTWARE}

  Analog Input

  The analog input can be scaled to user defined values. High and low alarm and trip setpoints are recorded with time delays. _{PROFIBUS-PBMSLV DRIVER (DRIVER 2) MODBUS DRIVER (DRIVER 1) KERNEL DRIVER OPTIONAL RS232 SERIAL CARD SST 5136-PBMS PROFIBUS CARD SST X-LINK EQUIPPED WITH:} Cost Effective MCC Wiring with MM3. _{STOP START RELAY RELAY OUTPUTS 24V DC STOPPED SUPERVISORY CONTROL SYSTEM FOR ONE STARTER SUPERVISORY CONTROL SYSTEM FOR ONE STARTER NULL MODEM CABLE CONVERTIONAL MCC MCC WITH MOTOR MANAGER 3 RUNNING TRIPPED MCC WIRING COM PORT OF THE CONNECTED FROM X-LINK PC COM PORT AND X-LINK TO F485 RS232 CABLES FROM SERIAL CARD FOR X-LINK CONFIGURATION SUPPLIED WITH X-LINK CONFIG PORT TO CONTROL CABLE 10 WIRE REMOTE CONTROL TWO WIRE} F485 OR SCI BOX F485 OR SCI BOX F485 OR SCI BOX _{COMPUTER Tx Rx + - COM GND + - RS232 FIBER OPTIC RS485 POWER POWER RS232 FIBER OPTIC RS485 POWER POWER RS232 FIBER OPTIC RS485 POWER POWER COM PORT 9VAC/9VDC COM PORT 9VAC/ 9VDC COMPUTER Tx Rx + - COM GND + - 9VAC/9VDC COM PORT 9VAC/ 9VDC COMPUTER Tx Rx + - COM GND + - 9VAC/9VDC 9VAC/ 9VDC 240/120V AC CONTACTOR CONTACTOR N L RELAY RELAY STOP START TRIP MM III C3 C2 FIELD CONTACTOR RUNNING INDICATOR RESET A B A B STOP 240/120 V AC LOCAL MCC N L RS485 TWISTED PAIR CONTROL CABLE STOPPED INDICATIOR TRIPPED INDICATIOR PANEL DEVICES MESSAGE CONTACTOR B TRIPPED AUTO MANUAL TRIPPED AUTO MANUAL}

PROFIBUS-DP NETWORK

_{SLAVE 1 SLAVE 1 SLAVE 1 TWISTED PAIR TWISTED PAIR SHIELDED DAISY-CHAIN 3 DAISY-CHAIN 2 DAISY-CHAIN 1 MANUAL START B ACTUAL AUX 1 AUTO START A SETPOINT AUX RELAY 1 AUX RELAY 1 STOP STORE VALUE AUX 2 STOP START START STOP START START RUNNING ACTUAL STORE ACTUAL STORE ALARM CONTACTOR A STOPPED RELAY B FAULT TRIPPED STOPPED SETPOINT RESET SETPOINT RESET TWISTED PAIR ALARM AUX RELAY 2 ALARM AUX RELAY 2 RUNNING RELAY A RUNNING RELAY A VALUE STOPPED RELAY B MESSAGE MESSAGE SHIELDED VALUE RELAY FAULT RELAY RELAY TIME RELAY O/L GROUND STALL U/C ACCEL TRIP THERMISTOR CONTRACTOR STOP FIELD START PUSHBUTTON ACTUAL STORE ACTUAL STORE NUMBERS OF STARTS STOP PUSHBUTTON} HOURS RUN COUNTER _{809755A2.AI PROGRAM RX1 AUX1 SLAVE 2 SLAVE 2 SLAVE 2 PQM POWER QUALITY METER SR469 STATUS MOTOR STATUS OUTPUT RELAYS SETPOINT ACCESS STARTING R2 AUXILIARY STATUS COMMUNICATE RELAYS STOPPED RELAY B SR469 IN SERVICE STOPPED R1 TRIP SIMULATION TX2 AUX2 START START START START SELF TEST RX2 AUX3 ALARM TX1 ALARM TRIPPED AUX RELAY 1 AUTO MANUAL TRIPPED AUX RELAY 1 AUTO MANUAL ALARM AUX RELAY 2 ALARM AUX RELAY 2 RUNNING RELAY A RUNNING RELAY A STOP A B STOP A B SETPOINT RESET SETPOINT RESET MESSAGE MESSAGE VALUE STOPPED RELAY B VALUE SLAVE 3 AUXILIARY RS485 UNBALANCE PICKUP R5 BLOCK START COMPUTER RS485 OVERLOAD PICKUP R4 ALARM} COMPUTER RS232 RUNNING R3 AUXILIARY MODBUS NETWORK LOCKOUT GROUND PICKUP R6 SERVICE _{PROGRAM PORT MESSAGE MESSAGE LOSS OF LOAD POSSIBLE RESET RESET HOT RTD NEXT ACTUAL SETPOINT ENTER . HELP ESCAPE VALUE MOTOR MANAGEMENT RELAY SR469 4 7 1 8 2 5 TM 9 3 6 809822a1.ai}

USER INTERFACES MODELS

  Alternatively up to 32 MM3’s could be daisy Communication Mounting Configurations _® chained and connected to a Touch-screen

  The MM3 uses a ModBus RTU RS485 The MM3 can be ordered in two

  Graphical Interface (TGI) module for remote

  connection for communication. Up to mounting configurations; the chassis status/command operations.

  32 MM3s can be daisy chained togeth- mount and the panel mount with local er on a single communication channel. display. The MM3 supports operation at 1200 to 57600 bps. A RS232/485 converter The chassis mount model is the “black box”

  version of the MM3. It is mounted inside the motor

  module may be used to connect a control center (MCC). personal computer to the MM3.

  Software

  The MM3 is provided with a free communications program called MM3PC. It runs on a personal comput- _® er under Windows . It allows access to all the features of the MM3 with easy to use pull down menus. Using this

  The panel mount with display model is the “Top of

  program it is possible to: the Line” MM3.

  The chassis mount version has the

  ■ Program or modify setpoints

  added flexibility of using the display

  ■ Load or save setpoints from or to a disk port as a second communications port. ■ Read actual values from the MM3

  The advantage is that slower metering

  9 ■ Monitor status

  functions can be assigned to one

  ■ Read pre-trip data and trip record

  communications port while the other

  ■ Display dynamic trending of actual

  port could be used for high speed

  values

  command operations such as

  ■ Get help on any topic

  Start/Stop or quick status updates such

  ■ Print the instruction manual from disk

  as tripped, running, etc. Using the

  ■ Simulate and test features _® second port provides a means for redundant communication channels Windows based software is supplied with the MM3.

  The panel mount with local display guaranteeing control and status infor- model is mounted on the front panel of mation even if one channel is the MCC with its 2 by 20 alphanumeric interrupted. display, full keypad, and 10 status LEDs exposed to the operator for complete local viewing and setpoint program- ming. The setpoints can also be loaded into the relay through the RS485 communications port.

  Model Table: The MM3 is available in chassis mount or panel mount models.

  OPTION 1 (Standard) OPTION 2 Protection 3 phase overload protection (49/51) 3 phase overload protection (49/51)

  Phase unbalance (46) Phase unbalance (46) Welded/open contactor Welded/open contactor Ground fault trips (50G/51G) Ground fault trips (50G/51G) Stalled rotor protection (48) Stalled rotor protection (48) Display kw and kWh Display kw and kWh Undercurrent/underpower (37) Undercurrent/underpower (37) Overvoltage (59) Overvoltage (59) Undervoltage (27) Undervoltage (27)

  Inputs 4 control 6 control

  2 programmable 10 programmable Thermistor input Analog in input Analog output

  Relays Contactor A Contactor A

  Contactor B Aux 1 Aux 1 Aux 2 or ESD relay Aux 2 or ESD relay FEATURES Front View

  DISPLAY: RELAY INDICATORS: PROGRAM KEYS: 2 line, 40 character illuminated display RELAY A: Contactor A energized. ACTUAL VALUES: Press to enter communicates all messages in simple actual values mode to display actu-

  RELAY B: Contactor B energized.

  English for easy interpretation by users al motor values such as current, AUX 1: User programmable relay 1 energized. unfamiliar with unit. ground leakage, thermal capacity.

  AUX 2: User programmable relay 2 energized.

  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.

  STATUS INDICATORS:

  VALUE: Increment or decrement RUNNING: Contactor is energized currently displayed setpoint value. and motor is running.

  STOPPED: Contactor is not ener- gized and motor is not running.

  CONTROL KEYS: TRIPPED: Contactor is not ener-

  AUTO: Selects gized. Motor is not running. The operation of start via communi- MM3 has tripped the motor due to cation port. a fault. Normally a cause of trip

  MANUAL: Selects manual opera- message will be displayed. tion of motor using start key.

  ALARM: One or more alarm condi- START A: Energize contactor A. tions are present. Normally a

  9 START B: Energize contactor B. cause of alarm message will be displayed.

  STOP: De-energize contactors.

  Rear View SWITCH INPUTS THERMISTOR SUPPLY VOLTAGE

  GROUND CT INPUT Ground Opto-isolated 120/240 VAC live inputs for various interlock functions. The NTC or PTC thermistor required to power the MM3

  50:0.025 ground fault safety and interlock inputs are fully programmable and can be assigned to such input for hot winding input. surge

  VOLTAGE INPUT functions as setpoint access, plant interlock, test, and various others. detection.

  Phase A voltage input for voltage and power monitoring.

  CONTROL POWER 120/240 VAC supply voltage

  ANALOG INPUT/OUTPUT selector switch and fuse 4 - 20mA input for process access door control monitoring / alarming / tripping.

  4 RELAYS ■

  Contactor A: direct on COMMUNICATIONS line / forward / wye RS485 2 wire serial

  ■ Contactor B: reverse / delta communication port

  ■ User programmable relay operates at 1200 - 57,600 (AUX 1) bps for remote

  ■ User programmable relay commands, monitoring (AUX 2) and setpoint store. _® ModBus RTU protocol.

  Ground safety RESIDUAL GROUND INPUT PHASE CT INPUTS 3 isolated phase CT inputs TYPICAL WIRING _{C 480 VOLTS B A F4 F3 CONTACTOR A A L2 L1 CT PHASE A CT GROUND CT PHASE B} CT MODULE _{B A C F1 F2 F5 A L3 CT PHASE C} MOTOR

  INTERLOCK

  19

  20 _{SERIAL 485 A+}

  25

  10 _{INTERLOCK INPUT 10 SERIAL 485 B- RS485 480 VOLTS}

  9 _{INTERLOCK INPUT 9 INTERNAL CONNECTOR RS485 485 SHIELD}

  26

  27

  8 _{INTERLOCK INPUT 8 PROGRAMMABLE INPUTS}

  7 _{INPUT 7 ANALOG + 110/230 VAC INTERLOCK}

  31 _{ANALOG OUT 4-20 mA}

  6 _{INPUT 6 ANALOG -}

  9 _{INTERLOCK OG OUT ANALOG OUT}

  32

  5 _{INPUT 5 ANAL INTERLOCK SHIELD}

  33

  4 _{INTERLOCK INPUT 4 GE Power Management}

  3 _{INPUT 3} MOTOR MANAGER 3

  43 _INTERLOCK OPTION 2 _N/O

  2 _{INPUT 2 INTERLOCK Y 1}

  42

  1 _{INPUT 1 RELA}

  41 _{STOP N/C}

• 11
_{PROGRAMMABLE START A FIXED SWITCH INPUTS}

  40

  12 _{START B = OPTION 2 N/O}

  39

  13 _{ISOLATOR Y 2}

  38 _A

  14 _{STATUS NO RELA}

  37 _{CONTACTOR A N/C}

• 15 _{STATUS NO PROGRAMMABLE CONTACTOR B}

  36

  16 _{STATUS NO}

• _{+24 VDC STATOR THERMISTOR + . COIL Y 2}

  35 _THERMISTOR

  17 _{PROG. RELA +24 COM THERMISTOR - EXT}

  34

  18 _{ANALOG + ANAL ANALOG IN 4-20mA}

  28 _{ANALOG - OG IN}

  29 _{OR N/O ANALOG IN SHIELD CT}

  44

  30 _TA ^B _{COM NEUTRAL CON}

  45 _{CONTACTOR A}

  23 _{CON OR N/O LIVE CT}

  46

  

24 TROL PO PHONE JACK

_{TA A COM EARTH SURGE CON}

  47

  22 _{EARTH SAFETY WER}

  21 _{EARTH SAFETY} TO REMOTE DISPLAY _{MCC GROUND BUS}

  48 _{3. DO NOT GROUND TERMINAL 19 WHEN USING A EXTERNAL GROUND CT. 2. TERMINALS MARKED WITH "*" MUST BE CONNECTED BEFORE MOTOR CAN BE STARTED. 1. RELAY CONTACT STATE SHOWN WITH CONTROL POWER NOT APPLIED. NOTES:} 809772A4.dwg

  

36 V isolated, active source

MM3 TECHNICAL฀SPECIFICATIONS

  8 A

  Accuracy: ± (2% + 1)* GROUND FAULT CURRENT INPUT Conversion: True RMS, sample time 1.67 ms Range: 0.1 to 1.0 x FLC amps setpoint

  5 VDC, 100 mA METERING PHASE CURRENT INPUTS Conversion: True RMS, sample time 1.67 ms Range: 0.1 to 8 x phase CT primary amps setpoint when external CTs are used .2 to 250 A, FLC < 32 A

  8 A 1250 VA 220 W CONFIGURATION SPST-NO – Contactor A & B – Form A CONTACT MATERIAL Silver Alloy (AgCdO) MAX OPERATING VOLTAGE 380 VAC, 125 VDC MIN PERMISSIBLE LOAD

  3.5 A

  8 A 1250 VA 220 W (PF=0.4) 250 VDC

  3.5 A

  INDUCTIVE 30 VDC

  8 A 2500 VA 300 W

  8 A

  8 A 2500 VA 300 W 250 VDC

  30 VDC

  (residual connection)

  MM3 CONTACTOR A & B OUTPUT RELAYS VOLTAGE MAKE/CARRY MAX. OPERATING MAX. SWITCH. CONTINUOUS CURRENT CAPACITY RESISTIVE

  

15 V isolated, active source

OUTPUTS RELAY CONTACTS

  Delay: 1 sec Accuracy: ± 5% or 100 Ω (whichever is greater) ANALOG INPUT Range: 4-20 mA Accuracy: ± 1% of full scale Alarm: Programmable 4-20 mA Trip: Programmable 4-20 mA Accuracy: ± 2% of full scale reading Isolation:

  R HOT

=100-30,000 Ω

  HOT

=100-30,000 Ω

negative temperature coefficient NTC

  INPUTS THERMISTOR INPUTS Sensor Types: positive temperature coefficient PTC R

  7 VA (Nominal) COMMUNICATIONS Type: RS485 2 wire, half duplex Baud Rate: 1,200-57,600 bps Protocol: ModBus ^®

RTU

Functions: Read/write setpoints, read actual values, execute commands, read coil status, read device status, loopback test

  25 VA (Maximum)

  240 VAC, range 150-250 VAC Frequency: 50/60 Hz Power Consumption:

  IEC 529 IPX0 POWER฀SUPPLY SUPPLY VOLTAGE AC Nominal: 120 VAC, range 80-135 VAC

  IP Class:

  (residual connection) 0.5 to 15.0 A (50:0.025 CT) Full Scale: 1.5 x FLC amps setpoint

  15 A (50:0.025 CT) Accuracy: ± (2% + 2)* (residual connection) FLC < 32 A

  ° °C to 60 C, 16Hrs (IEC60068-2-2)

  8 A

  Ω Max Output: 21 mA Accuracy: ±2% of full scale reading Isolation:

  5 VDC, 10 mA ANALOG OUTPUTS Output: 4-20 mA Max Load: 600

  8 A 875 A 170 W CONFIGURATION SPST-NO + SPST-NC – AUX 1 & 2 – Form A CONTACT MATERIAL Silver Alloy (AgCdO) MAX OPERATING VOLTAGE 380 VAC, 125 VDC MIN PERMISSIBLE LOAD

  3.5 A

  250 VAC

  8 A 875 VA (PF = 0.4) 170 W

  3.5 A

  INDUCTIVE 30 VDC

  8 A 2000 VA 240 W

  8 A

  8 A 2400 VA 240 W 250 VAC

  30 VDC

  ± (2% + 6)* (residual connection) FLC < 32 A 50:0.025 CT: ± 0.3 A

  OUTPUTS MM3 CONTACTOR AUX 1 & AUX 2 OUTPUT RELAYS VOLTAGE MAKE/CARRY MAX. OPERATING MAX. SWITCH. CONTINUOUS CURRENT CAPACITY RESISTIVE

  NOTE: It is recommended that all MM3 relays are powered up at least once per year to avoid deterioration of electrolytic capaci- tors in the power supply.

  1.15 to 4.50 x FLC, or OFF Delay Range: 0.5 to 5 sec Accuracy: ± 0.5 sec

  50% of motor stopped value when motor running Accuracy: ± 1 min STALLED ROTOR Range:

  0.01 VA ACCELERATION TIME Range: 0.5 to 125 sec, or OFF Accuracy: ± 0.5 sec THERMAL COOLING TIMES Range: 5-1080 min when motor stopped

  VT Burden:

  Max: 250 VAC

  ± 5% of reading, whichever is greater Input Voltage: Nominal: 120 VAC or 240 VAC

  ± 2% of reading, whichever is greater Power Accuracy: ± 5% of nominal or

  VOLTAGE INPUT/POWER READING Conversion: True RMS, sample time 1.67 ms Voltage Full Scale: 1.5 x VT Primary Voltage Accuracy: ± 2% of VT Primary or

  MONITORING

  85 °C

  2 Insulation Voltage 300 V Continuous Operating Temperature: Peak Operating Temperature:

  2 Overvoltage Category:

  PROTECTION OVERLOAD CURVES Trip Time: ±200 ms up to 10 sec Accuracy: ± 2% of trip time over 10 sec Detection Level: ± 1% of primary CT amps GROUND FAULT TRIP TIME Accuracy: - 0 ms, + 50 ms, 0.0 = less than 50 ms SINGLE PHASE (PHASE UNBALANCE) Range:

  Greater than 30% U/B Accuracy:

  ± 2 percentage points Trip Delay: 5 sec, ± 1 sec Calculation Method: If I

• I

  AV ≥ I

  FLC : UB = | I

  M

  AV | x 100

  I AV If I AV

  < I FLC

  Intelligent฀MCC฀Controller

• I

  IEC 947-1, IEC 1010-1 Quality Assurance System (registered by QMI):

  6 lbs 12 oz (3.1 kg) Shipping Dimensions: 12" x 9" x 7.5" (350 mm x 229 mm x 190 mm)

  I FLC = motor full load current setting UNDERCURRENT Range: 10-100% of motor FLC, or OFF Delay Range: 1 to 60 sec Accuracy: ± 1 sec UNDERVOLTAGE – SUPPLY VOLTAGE Undervoltage: 65 % of nominal (120 VAC or 240 VAC) immediate restart for maximum dip time of 0.1-0.5 sec or OFF delayed restart for maximum dip time of 0.1-10.0 sec/unlimited time

  AV

  I M = current in a phase with maximum deviation from I

  = average phase currents

  I FLC Where: I AV

  AV | x 100

  : UB = | I M

  INSTALLATION WARNING: HAZARD may result if the product is not used for its intended purpose.

  :

  FUSE฀TYPE/RATING

  0.5 A 250 V Fast blow, high breaking capacity 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 5 W Handheld

  Transmitter @ 25 cm Static:

  IEC 801-2 Electrostatic Discharge Hipot: 1500 V, 1 min all input > 30 V ENVIRONMENTAL Pollution Degree:

  Delay Restart Range: 0.2-300 sec Delay Restart Accuracy: ± 0.2 sec MM3 Intelligent฀MCC฀Controller MM3

  ISO: 9001 - 1994 PACKAGING Max. Weight:

  9 Motor protection and control shall be

• Specifications subject to change without notice.

  Metering values shall include:

  GUIDEFORM฀SPECIFICATIONS APPROVALS

  ■ Energy (kWh) ■ RMS voltage

  ■ Unbalance ■ Power (kW)

  ■ Motor load ■ Thermal capacity used

  ■ Thermal capacity ■ Analog input

  ■ RMS current of each phase ■ RMS ground fault leakage current

  Motor current sensing shall be from internal primary CTs up to 250 FLC. Ground sensing shall be from an exter- nal core balance CT or residually.

  provided by an intelligent control device capable of manual or automatic control. Protection features available shall include trip and alarms for:

  ■ Undervoltage auto restart

  ■ One analog input with high and low alarm and trip setpoints

  ■ 2 auxiliary relays, each of which can be assigned to any one of 31 functions

  ■ 2 contactors (A & B)

  UL ฀฀฀฀Listed฀for฀USA฀and฀Canada

  ■ 6 fixed control inputs for start A & B, stop, local isolator, contactor A & B status

  Control features available shall include:

  ■ Overload with 12 overload curves ■ Phase unbalance ■ Welded/open contactor ■ Ground fault ■ Locked/stalled rotor ■ Thermistor for hot winding ■ Undercurrent and underpower ■ Additional alarms for abnormal conditions

• Accuracy is given as ± ([% of reading] + [number of least significant digits])

  ■ 10 programmable inputs, each of

which can be assigned to any one of 33 functions GUIDEFORM SPECIFICATIONS continued _®

  The motor manager shall generate a A remote panel mount model shall A RS485 ModBus RTU connection trip report each time a trip command is be available with a 2 by 20 character shall be used for communication. It issued. It shall include the cause of the display, control keys, and 10 LEDs to shall support operation at 1200 to trip and the pre-trip metering values. p r o v i d e l o c a l a c c e s s w i t h o u t a 57,600 bps. A RS232/485 converter computer. module can be used to connect a

  Statistical data and routine maintenance personal computer to the motor alarms shall be included features of the manager. Software shall be provided motor manager. to allow easy access to all features.

  DIMENSIONS _{1.57 (40) 6.750 6.49} DISPLAY _{0.85 (171.5) (164.8)} MODULE _{COMM PORT TO (21.6) TRIPPED AUX. RELAY 1 RUNNING RELAY A STOPPED RELAY B MESSAGE VALUE (101.6) (58.7)}

_4.00

_{(95.3) 3.75 2.31 CUTOUT CUTOUT (2.54) (158.8) 0.10 6.25 MAIN MODULE} ALARM AUX. RELAY 2 0.078 T Typ _{STOP (88.1) 3.47 (29.2) 1.15 (2) 8 PLACES}

9 SIDE VIEW FRONT VIEW MOUNTING DETAIL

  _{(249.8) (117.6) (117.6) 9.833 4.063 4.073 (4.3) 0.17} MAIN 8.850 3.285 _{(224.8) (83.4)} MODULE _{(4) - 0.156Ø (4) (26.4) 1.040 (57.7) 2.270 SPLIT LINE (91.5) 3.600 CT MODULE 1 2 3 4 5 6 7 8 9 101112131415 161718192021222324 WARNING REAR VIEW (31.8) (31.8) (31.8) CUTOUT CUTOUT CUTOUT L 0.950 1.25 C L C L C L 1.25 1.25 (4) - 0.156ø C (4) (24.1) 0.704 (17.9) (17.9) 0.704} 1.030 _{(26.1) (119.7) 4.712 DISPLAY PORT 252627282930313233343536373839 404142 434445464748 REMOTE CT PORT} Check voltage _{switch before installation (66.6) 3.963 3.963 2.622 (74.9) (74.9) 2.950 2.950 (100.7) (100.7) CT & MAIN MODULES (37.5) (37.5) 1.475 1.475 NOTE SIDE VIEW FRONT VIEW MOUNTING DETAIL 809800A1.ai (53.1) 2.090 INTERFACED WITH CABLE} CAN BE SPLIT MOUNTED _&

  ORDERING

  To order select the basic model and the desired Accessories features from the Selection Guide below.

  MM3PC software package supplied free RS232 TO RS485 CONVERTER box

  MM3 * * * *

  designed for harsh industrial environ-

  MM3 Product family

  ments

  1 Option 1 basic unit

  2 Option 2 full unit

  5A PHASE CT: 300, 350, 400, 500, 600,

  Order online – Order online – E ESD relay 750, 1000 A Aux 2 relay

  50:0.025 Ground CT for sensitive save time

  save time N No display (chassis unit)

  ground detection on high resistance

  W With local display

  grounded systems

  120 120 VAC control voltage

  Control key cover hides auto, manual

  240 240 VAC control voltage www.GEindustrial.com/pm

  and start buttons