Model 777-KW/HP - SymCom

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Model 77CThe Model 77Cis a fully-programmable electronic overload relay designed to monitor single-phasesystems. It can be used as a stand-alone product or the communication portcan be used to form a network to monitor the motors from a PC, or other controlsystem. Applications include conveyor systems, HVAC equipment, pumps, saws,grinders, and other single-phase electric motors.Available Models:77C77C-LR777-HVR-SP*The Model 77C includes a built-in current transformer (CT) which will handleapplications from 2-90A. An external current transformer can be implemented tohandle applications up to 800A.The following 14 parameters can be viewed fromthe 3-digit alphanumeric display or from a network computer: low voltage trippoint, high voltage trip point, CT size/loops setting, overcurrent trip point,undercurrent trip point, trip class (5, 10, 25, 20, 30, or linear), rapid-cycle timer(RD1), overload restart delay (RD2), underload restart delay (RD3), number ofstarts after an overload (manual or automatic), RS-485 address, number ofrestarts after an underload fault, underload trip delay, and linear overcurrent tripdelay. Both voltage and line current can also be viewed while the motor is running.The Model 77C can be used with an optional RS-485 module (pn RS485MS-2W)allowing up to 99 Model 77C, Model 777, Model 601,or RM-2000 units to belinked together using Modbus. From the computer, an operator can control themotor, view the operating parameters, and log information. Software and RS-485module sold separately.See Appendix A, Figures 30 & 31 for typical wiring diagrams.SpecificationsControl Power77C, 77C-LR • • • • • • • • • • • • • • • • • • • • 100-240VAC, single-phase777-HVR-SP• • • • • • • • • • • • • • • • • • • 380-480VAC, single-phaseFrequency • • • • • • • • • • • • • • • • • • • 50*/60HzMotor Full Load Amp Range • • • • • • • • 2-800A (standard)• • • • • • • • • • • • • • • • • • • • • • • • • • • 1-9A (LR option)TC- Overcurrent Trip Class• • • • • • • • • 5, 10, 15, 20, 30 (J prefix• • • • • • • • • • • • • • • • • • • • • • • • • • • enables jam protection feature)Short Circuit Withstand Rating • • • 100kA per UL and CSAPower Consumption • • • • • • • • • • • 10 Watts (max.)Output Contact Rating SPDT (Form C)77C, 77C-LR • • • • • • • • • • • • • • • • • • Pilot duty: 480VA @ 240VAC777-HVR-SP• • • • • • • • • • • • • • • • • • • Pilot duty: 470VA @ 600VACGeneral purpose: 10A @ 240VACAccuracy at 25º C (77º F)Voltage • • • • • • • • • • • • • • • • • • • • • • ±1%Current • • • • • • • • • • • • • • • • • • • • • ±3%(direct - no external CTs)Timing • • • • • • • • • • • • • • • • • • • • • • 5% ±1 secondRepeatabilityVoltage • • • • • • • • • • • • • • • • • • • • • • ±0.5% of nominal voltageCurrent • • • • • • • • • • • • • • • • • • • • • ±1% (
Communication ModulesThe RS485MS-2W Communication Moduleis required to enable the Modbus communications function on Model 77X-type products.This module is required when the RM-1000, RM-2000 or other Modbus capable device isused with 77X-type products.Specifications• Optical isolation from line potentials• Powered by the 77X product• RS-485 compliant bus drive capability• Remote reset input connection• Power connection for the Model RM-1000Available Models:RS485MS-2WCOM-DN-PCOM 4-20The COM-DN-P DeviceNet Communication Moduleallows Model 777-P type products to be used on a DeviceNet ® network.Specifications• Group 2 slave only• Overload device type• Polled messaging, configurable to 50 bytes• Supports Group 4 Automatic Node Recovery messaging• DeviceNet compatibleThe 4-20mA Output Moduleis intended for use with the Model 777-AccuPower output power monitor.The module willsend a 4-20mA signal proportional to the output power. It can also be used to send theinput power by setting the efficiency setting on the 777-AccuPower monitor to one.This module allows communication to a PLC with an analog input and no Modbus input.Specifications• Self powered• Scalable 4-20mA output proportional to Hp or kW• Signal can be used for displays, controllers, or PLCsCommunication Adapters• RS485-RS232 conv. with cable & plug• RS485-USB conv. with cable & plug/RS232:USB conv.actual unit may vary from picturewww.symcom.com • tel: 605-348-5580 800-843-8848 • fax: 605-348-56857
Page 3 and 4: Table of ContentsMotor ProtectionMo
Page 5 and 6: 777 Product LineProduct Selection M
Page 7: 777 Product LineSpecificationsElect
Page 11 and 12: Remote Monitoring DevicesAvailable
Page 13 and 14: Solutions SoftwareSolutions is a so
Page 15 and 16: 3-Phase Voltage MonitorsProduct Sel
Page 17 and 18: Model 102AThe Model 102Ais an auto-
Page 19: Model 201A-AUThe Model 201A-AUis an
Page 24 and 25: Model 455The Model 4553-phase volta
Page 28 and 29: Model 601The Model 601is a fully-pr
Page 30 and 31: Model 50RThe Model 50Rsingle-phase
Page 32 and 33: Model 202-200-SPThe Model 202-200-S
Page 34 and 35: Three-Phase Current MonitorsCurrent
Page 36: Model 520CPThe Model 520CPis a full
Page 39 and 40: Alternating RelaysProduct Selection
Page 41 and 42: Intrinsically-Safe RelaysAn Intrins
Page 43 and 44: Model ISS-102The ISS-102SymCom’s
Page 45 and 46: Pump ControllersPump Controllers ar
Page 47 and 48: Model PC-105The PC-105is a five-cha
Page 49 and 50: Model 460-15-100-SLDThe Model 460-1
Page 51 and 52: Three-Phase PumpSaversMore than jus
Page 53 and 54: Model 777-KW/HPSpecificationsElectr
Page 55 and 56: Model 777-AccuPowerThe Model 777-Ac
Page 57 and 58: 77C-KW/HPThe Model 77C-KW/HPhas imp
Page 59 and 60:
111 & 231-INSIDER-PModels 111-Insid
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Models 233-P & 111The Model 233-P a
Page 63 and 64:
Load SensorsSymCom’s load sensors
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Model LSR-24The Model LSR-XXXload s
Page 67 and 68:
Model LSRXThe Model LSRXis an AC cu
Page 69 and 70:
Current TransformersCurrent Transfo
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Auxiliary ProductsInformer IR Kit (
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Enclosure Dimensions777, 77C, 6010.
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Enclosure DimensionsALT, 201, ISS-1
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Enclosure DimensionsLSRX.7218.22.50
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LOVLOVLOVIND. CONT. EQ.LISTEDIND. C
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Appendix ATYPICAL WIRING DIAGRAM FO
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Appendix AINPUT POWERL1L2L3MMMOLOLO
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Appendix ATYPICAL WIRING DIAGRAM FO
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www.SymCom.com... your electronic c
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