SymCom Model 777 / 777-LR / 777-575 Overload alphanumeric LED display ... mounted on a panel door. one - a 777 - e clrtrcom ... SymCom Model 777 / 777-LR / 777-575 Overload Relays Author:

Download SymCom Model 777 / 777-LR / 777-575 Overload   alphanumeric LED display ... mounted on a panel door. one - a 777 - e clrtrcom ... SymCom Model 777 / 777-LR / 777-575 Overload Relays Author:

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  • Recordable voltage, current, last 4 faults, KWh usage, and powerfactor is available whenusing communications package.

    Digitally programmablefor precise customizing.

    Sixteen set points can be programmed for maximum protection.

    Last fault memory provides instant trouble-shooting diagnostics.

    UL and cUL listed as anoverload relay.

    RS485 communicationport for use with computerized systemsusing Modbus protocol.

    Features

    Applications

    Description

    The Model 777 can be used on any 3-phase motor drawing 2-800 amps. Applications includeCONVEYOR SYSTEMS, HVAC EQUIPMENT, PUMPS, SAWS, GRINDERS AND OTHER 3-PHASEELECTRIC MOTORS.

    The Model 777 is a fully-programmable electronic overload relay. An alphanumeric LED displayprovides programming and diagnostic information. Sixteen parameters can be programmed inthe Model 777:

    1) Low Voltage Setpoint 9) Rapid-Cycle Timer (RD1)2) High Voltage Setpoint 10) Fault Restart Delay (RD2 - Motor Cool-down Timer)3) Voltage Unbalance Setpoint 11) Underload Restart Delay (RD3 - Dry Well Recovery Timer)4) CT Size/Loop Setting 12) No. of restarts after an overload (Manual or Automatic)5) Overcurrent Trip Point 13) RS485 Address6) Undercurrent Trip Point 14) No. of restarts after an underload fault7) Current Unbalance Trip Point 15) Underload Trip Delay8) Trip Class (5, 10, 15, 20, 30) 16) Ground Fault Trip Point

    Programming the Model 777 is an easy four step process: 1) Rotate the MODE SELECT switch to the parameter to be programmed; 2) Depress and hold the RESET/PROGRAM button; 3) Rotate the DISPLAY/PROGRAM dial to the desired setting as shown in the LED display; and 4) Release the RESET/PROGRAM button.

    An RS-485 port allows the Model 777 to be connected to an RM-1000 or RM-2000 remote monitor or directly to a computer or PLC. The RM-2000/777 motor management system combines unsurpassed electronic motor protection and critical, user friendly motor monitoring.SymCom's Solutions Software (sold separately) can be used to monitor and control up to 99Model 777s from a central computer. Using Solutions Software, an operator can control motors,view the operating parameters, and record the following operating parameters:

    Line - Line Voltages (Recordable) Restart Delay Timers Line Currents (Recordable) KWH Usage (Recordable) Last 4 Faults (Recordable) Power Factor (Recordable)

    Model 777 Model 777-LRModel 777-575

    Overload Relays

    EngineeredProtection

    OverloadUnderloadJamsUndervoltageOvervoltageSingle phasingUnbalance (voltage & current)

    Ground fault (Class II)Rapid cyclingPhase reversal

    Fully programmableUL and cUL listedCE compliantCSA approvedAutomatic or manual reset

    Tamper guardRS485 communications port

    Surface mount orDIN rail mount

    Alphanumeric LEDdiagnostic display

    Last fault memory5 year warrantyMade in USA

    Network programmableAbility to clear last fault

    Protects 3-Phase motors from:

    Standard Features

    New Features

    Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com

    https://www.clrwtr.com/Catalog/Manufacturers/Littelfuse/Relays/Motor-Pump-Protection

  • 777 777-LR 777-575Overload Relays

    A B C

    CONTACTOR

    H1

    X1

    H1

    X1

    H1

    X1

    12 - 16 AWGStranded Wire

    3 0MOTOR

    CURRENT TRANSFORMER WIRING DIAGRAM FOR MODEL 777 (80 TO 800 AMPS)

    SYMCOM RECOMMENDS USING CTs WITH TERMINALS TO SIMPLIFYINSTALLATION.

    Note: All CTs must face the same direction and all CTsecondaries must be wired identically, i.e. all X1 terminalsenter the main (round) window and returns to H1 terminalafter exiting the loop conductor window (rectangle).

    Every CT secondary must make five passes through thecorresponding main conductor window on the model 777.

    DISPLAY / PROGRAM

    L3-L1L3-L1L B

    E

    +

    OV AVGAVG

    T

    L1-L2

    L1-L2

    L2-L3L2-L3 C

    N

    T

    CEAA

    G AVGAVG

    R

    R

    U

    RD2 UCTD

    CUB LV

    MULTUCOC

    HVVUB

    RD1TC

    GFRUN

    #RU / ADDRRD3 #RF

    MODE SELECT

    L1 L2 L3 NO C NC

    MODEL 777OVERLOAD RELAY

    DISPLAY MESSAGE

    RESET/PROGRAM 800-843-8848SYMCOM, INC. RAPID CITY, SD

    Wiring configuration based on motor amps. Overload Trip Classes

    777

    External CTsrequired. Seewiring diagramfor externalCTs

    777-LR

    Model

    1 - 22 - 9

    Full LoadAmps

    # ofLoops

    10

    # of Conductorsthrough A, B and C

    21

    MULT to Program(CT Ratio)

    21

    8 - 1212 - 2525 - 9080 - 110110 - 160160 - 220220 - 320320 - 420400 - 520480 - 600560 - 800

    21044444444

    32155555555

    321

    100 (100:5)150 (150:5)200 (200:5)300 (300:5)400 (400:5)500 (500:5)600 (600:5)800 (800:5)

    10000

    1000

    100

    10

    0 300 400 500

    % of OC Setting

    Trip

    Tim

    e (S

    eco

    nd

    s)

    600 700 800 900 1000

    Class 10

    Class 30

    Class 20Class 15

    Class 5

    2001001

    Wiring Diagrams

    Charts

    Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com

  • 777 Manual Remote Reset KitThe manual remote reset allows the 777 line ofMotorSaver and PumpSaver products to be manually reset without opening the panel door.Simply connect the 9-pin adapter to the 777communication port and mount the resetswitch in a convenient location.

    RM-1000The RM-1000 is a local display/controller with RS-485Modbus network capabilities. Its modular design allowsfor flexible, inexpensive installation yet provides robustmotor management. Plant personnel safety is alsoenhanced by allowing system troubleshooting and control without opening the starter box.

    Dimensions for All 777 Units

    777 777-LR 777-575Overload Relays

    4.5"

    4.0"

    3.3"

    777 Angle Mounting Bracket777 Angle Mounting Bracket allows the 777 line of

    MotorSaver and PumpSaver products to be mounted intoshallow panels such as the Furnas Size 1 and other low

    profile panels. The angle bracket reduces theinstalled depth from 5.05" to 4.25".

    RS485MS-2WThe optional RS485MS-2W communications moduleis required if Model 777-type products are used on aModbus network or with RM-1000 or RM-2000remote displays. The communications module provides RS-485 bus drive capabilities and opticalisolation from the overload electronics and powerline.

    Accessories

    Dimensions

    RM-2000The RM-2000 motor monitoring device used in conjunctionwith SymComs Model 777 provides a complete motor

    management system. This system provides full electronicmotor protection, historical data and critical, user-friendly

    motor-monitoring information.The RM-2000 also featuresa real-time clock, 2x20 backlit LCD, one upstream RS-485Modbus communication port and is rated NEMA-3R whenmounted on a panel door.

    Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com

  • NOTES: SymCom's 777 & 777-LR can be preprogrammed prior to installation by applying 120 VAC between the L1 and L2 terminals.* 575 volt Model (MS 777-575)** If J prefix is displayed in trip class setting, jam protection is enabled.*** If "oc" is disabled in the #RF setting, the overcurrent will be included as a normal fault and the relay will automatically

    restart after RD2 expires,otherwise, manual reset is required after an overcurrent fault.

    SpecificationsModel 777, Model 777-LR & Model 777-575

    7/04

    EE lleecctt rr ii ccaa llInput Voltage 200-480 VAC, 3(Standard)

    500-600VAC for model 777-575Frequency 50-60 HzMotor Full Load Amp Range

    777, 777-575 777-LR, 777-575-LR2-25 Amps, 3 (Loops Required) 1-4.5 Amps, 3(Loops Required)25-90 Amps, 3(Direct) 2-9 Amps, 3(Direct)80-800 Amps, 3(External CTs)

    Short Circuit Rating 10kAPower Consumption 10W (Maximum)Output Contact Rating SPDT (Form C) Pilot duty rating: 480 VA @ 240 VAC

    General purpose: 10A @ 240 VACExpected Life

    Mechanical 1 x 106 operationsElectrical 1 x 105 operations at rated load

    Accuracy at 25 C (77 F)Voltage 1%Current 3%(

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