Protection Relays and Controls Motor ProtectionAdvanced MPS SERIES (PGR-6300) Motor Protection System Description The MPS Motor Protection System monitors voltage, current, and temperature to provide a comprehensive package of PHASE CT GF CT 22 protective functions. The MPS is a modular system with PHASE CT integrated protection, motor control, metering, and data-logging M PHASE CT functions. This system is typically used to provide protection for RTD x 8 three-phase low- and medium-voltage, medium- to high-horsepower induction motors. 1 MPU-CIM MPS-RTD Operator Interface (MPS-OPI) (Current Input Module) (Temperature 1 Input Module) g Large, bright, 4 x 20 vacuum-fluorescent display g Display metered values g MPU-32 Access set points (Motor Protection Relay) g L1 Powered by Control Unit g L2 Panel mount or attach directly to Control Unit g Remote mounting (1.2 km or 4000 ft maximum loop length) g 1/2 DIN size g Hazardous-location certified Control Unit (MPS-CTU) 2 g 2 Current inputs5-A or 1-A secondary phase current transformers g Voltage inputsup to 600 V without PTs g Earth-leakage input5-A or 1-A secondary or sensitive transformer Simplified Circuit Diagram g Tachometer (high-speed pulse) input g PHASE CT GF CT 8 digital inputs, 5 relay outputs, 1 analog input and output A B g 24-Vdc supply for OPI and RTD modules, and for digital inputs PHASE CT g IRIG-B time-code input M PHASE CT g 1/2 DIN size, surface mount RTD x 8 g RS-485 network communications (Standard) g DeviceNet , Profibus , or Ethernet communications available MPS-RTD (Temperature MPS-CTU Input Module) L1 (Control Unit) C 2 L2 Accessories MPS-OPI A Phase Current Transformers 1 (Operator Interface) Phase CTs are required to detect phase currents. Ordering Information Ground-Fault Current Transformer ORDERING NUMBER COMMUNICATIONS B Required zero-sequence current transformer MPS-CTU-01-00 RS-485 detects ground-fault current. Available with 5-A MPS-CTU-02-00 RS-485 & DeviceNet and 30-A primary ratings for low-level pickup. MPS-CTU-03-00 RS-485 & Profibus MPS-CTU-04-00 RS-485 & EtherNet/IP & Modbus TCP C MPS-RTD Temperature Input Module Optional module provides 8 inputs to connect ACCESSORIES REQUIREMENT Pt100, Ni100, Ni120, and Cu10 RTDs. MPS-OPI-01-00 Recommended D Phase CTs Required MPS-DIF Differential Current Module Optional motor differential protection, Ground-Fault CT Recommended compatible with core balance and summation MPS-RTD-01-00 Optional current transformer connections. MPS-DIF-01-00 Optional SE-IP65CVR-M Optional 2017 Littelfuse Protection Relays & Controls Rev: 4-B-061517 Littelfuse.com/mps Based on Manual Rev: 6-F-022117Protection Relays and Controls Motor ProtectionAdvanced MPS SERIES (PGR-6300) Motor Protection System Features & Benefits FEATURES IEEE BENEFITS Overload 49, 51 Extends motor life and prevents insulation failures and fires Current unbalance/ 46 Prevents overheating and extends motor life Phase loss/Phase reverse Overcurrent/Jam 50, 51 Prevents catastrophic failures and fires and extends motor life Undercurrent 37 Detects low-level or no-load conditions Ground fault 50G/N, 51G/N Prevents catastrophic failures and fires Optional RTD temperature protection (MPS-RTD module) for RTD temperature 38, 49 high ambient or loss of ventilation protection Overvoltage 59 Prevents stress to insulation Undervoltage 27 Prevents a start attempt when it will damage the motor Voltage unbalance 47 Detects unhealthy supply voltage Phase differential 87 Provides sensitive protection for high-resistance winding faults Dynamic thermal mode Provides protection through starting, running, overload, and cooling cycles Reduced overcurrent mode Minimizes Arc-Flash hazards during maintenance Starter control Simplifies the installation by reducing component count Metering Displays the measured and calculated motor parameters Data logging On-board 64-event recorder helps with system diagnosis Communications Remotely view measured values, event records & reset trips Conformal coating Internal circuits are conformally coated to protect against corrosion and moisture Wiring Diagram MPS-OPI Specifications OPERATOR INTERFACE Protective Functions Overload (49, 51) RTD temperature (38, 49) (recommended) (IEEE Device Numbers) Phase reverse (current) (46) Unbalance (current) (46) 1 Overfrequency (81) Underspeed (14) Overcurrent (50, 51) Starts per hour (66) GROUND-FAULT Jam Phase loss (voltage) (47) PHASE CURRENT MPS-RTD TRANFORMERS CURRENT Underfrequency (81) Overvoltage (59) RTD MODULE TRANSFORMER Ground fault (50G/N, Differential (87) (required) (optional) (required) 51G/N) Phase loss (current) (46) C A B Undercurrent (37) Undervoltage (27) Unbalance (voltage) (47) Phase reverse (voltage) (47) MPS-DIF DIFFERENTIAL Failure to accelerate Power factor (55) MODULE PHASE Input Voltage 65-265 Vac, 25 VA 80-275 Vdc, 25 W (optional) VOLTAGES Power-Up Time 800 ms at 120 Vac D Ride-Through Time 100 ms minimum 24-Vdc Source 100 mA maximum AC Measurements True RMS and DFT, Peak, 16 samples/cycle, and 33 22 30 29 27 26 23 22 20 17 60 56 53 52 ...... positive and negative sequence of fundamental + I/0 MODULE 4-20 mA Frequency 50, 60 Hz or ASD ANALOG Inputs Phase current, Earth-leakage current, Phase voltage, INPUT MPS-CTU 7 digital, tachometer, 1 analog CONTROL UNIT Output Contacts 5 contacts See Product Manual Approvals CSA Certified, RCM ( Australian), UL Recognized Communications Allen-Bradley DFI and Modbus RTU (Standard) DeviceNet, Profibus , Ethernet (Optional) ANALOG OUTPUT Conformally Coated Standard feature DIGITAL RELAY RS-485 4-20 mA OUTPUTS INPUTS + Warrant y 10 years 1 2 5 16 35 37 39 40 43 51 2 .............. Mounting (Control Unit) Surface (Operator Interface) Panel, Control-Unit mounted CONTROL POWER 2017 Littelfuse Protection Relays & Controls Rev: 4-B-061517 Littelfuse.com/mps Based on Manual Rev: 6-F-022117