MPS

MPS LITTELFUSE | Alldatasheet

Document overview

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Technical content

Protection Relays and Controls © 2017 Littelfuse Protection Relays & Controls Littelfuse.com/mps PHASE CT PHASE CT GF CTPHASE CT MPU-CIM MPS-RTD RTD x 8 MPU-32 M (Current Input Module) (Motor Protection Relay) PHASE CT PHASE CT GF CTPHASE CT MPS-CTUL1 M MPS-RTD MPS-OPI RTD x 8 (Control Unit) (Temperature Input Module) (Temperature Input Module) (Operator Interface) Motor Protection–Advanced MPS SERIES (PGR-6300) Motor Protection System

Description

The MPS Motor Protection System monitors voltage, current, and temperature to provide a comprehensive package of 22 protective functions. The MPS is a modular system with integrated protection, motor control, metering, and data-logging functions. This system is typically used to provide protection for three-phase low- and medium-voltage, medium- to high-horsepower induction motors. Operator Interface (MPS-OPI) g Large, bright, 4 x 20 vacuum-fluorescent display g Display metered values g Access set points g Powered by Control Unit g 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) g Current inputs—5-A or 1-A secondary phase current transformers g Voltage inputs—up to 600 V without PTs g Earth-leakage input—5-A or 1-A secondary or sensitive transformer g Tachometer (high-speed pulse) input g 8 digital inputs, 5 relay outputs, 1 analog input and output g 24-Vdc supply for OPI and RTD modules, and for digital inputs g IRIG-B time-code input g 1/2 DIN size, surface mount g RS-485 network communications (Standard) g DeviceNet™, Profibus®, or Ethernet communications available Phase Current T ransformers Phase CTs are required to detect phase currents. Ground-Fault Current T ransformer Required zero-sequence current transformer detects ground-fault current. Available with 5-A and 30-A primary ratings for low-level pickup. MPS-RTD T emperature Input Module Optional module provides 8 inputs to connect Pt100, Ni100, Ni120, and Cu10 RTDs. MPS-DIF Differential Current Module Optional motor differential protection, compatible with core balance and summation current transformer connections. B C Accessories A ACCESSORIES REQUIREMENT MPS-OPI-01-00 Recommended Phase CTs Required Ground-Fault CT Recommended MPS-RTD-01-00 Optional MPS-DIF-01-00 Optional SE-IP65CVR-M Optional ORDERING NUMBER COMMUNICATIONS MPS-CTU-01-00 RS-485 MPS-CTU-02-00 RS-485 & DeviceNet™ MPS-CTU-03-00 RS-485 & Profibus® MPS-CTU-04-00 RS-485 & EtherNet/IP™ & Modbus® TCP

Ordering Information

Simplified Circuit Diagram B C A D Rev: 4-B-061517 Based on Manual Rev: 6-F-022117

Protection Relays and Controls © 2017 Littelfuse Protection Relays & Controls Littelfuse.com/mps Motor Protection–Advanced PHASE VOLTAGES MPS-CTU CONTROL UNIT RELA Y OUTPUTS I/0 MODULE DIGITAL INPUTS 4-20 mA ANALOG INPUT ANALOG OUTPUT 4-20 mA 39 40 53 52 CONTROL POWER RS-485 30 29 27 26 23 22 PHASE CURRENT TRANFORMERS GROUND-FAULT CURRENT TRANSFORMER OPERATOR INTERFACE MPS-OPI (recommended) (required) (required) MPS-RTD RTD MODULE (optional) (optional) MPS-DIF DIFFERENTIAL MODULE Wiring Diagram A B C D Specifications Protective Functions (IEEE Device Numbers) Input Voltage 65-265 Vac, 25 VA; 80-275 Vdc, 25 W Power-Up Time 800 ms at 120 Vac Ride-Through Time 100 ms minimum 24-Vdc Source 100 mA maximum AC Measurements True RMS and DFT, Peak, 16 samples/cycle, and positive and negative sequence of fundamental Frequency 50, 60 Hz or ASD Inputs Phase current, Earth-leakage current, Phase voltage, 7 digital, tachometer, 1 analog 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) Conformally Coated Standard feature Warranty 10 years Mounting (Control Unit) Surface (Operator Interface) Panel, Control-Unit mounted Overload (49, 51) Phase reverse (current) (46) Overfrequency (81) Overcurrent (50, 51) Jam Underfrequency (81) Ground fault (50G/N, 51G/N) Undercurrent (37) Unbalance (voltage) (47) Failure to accelerate RTD temperature (38, 49) Unbalance (current) (46) Underspeed (14) Starts per hour (66) Phase loss (voltage) (47) Overvoltage (59) Differential (87) Phase loss (current) (46) Undervoltage (27) Phase reverse (voltage) (47) Power factor (55) Features & Benefits FEATURES IEEE # BENEFITS Overload 49, 51 Extends motor life and prevents insulation failures and fires Current unbalance/ Phase loss/Phase reverse 46 Prevents overheating and extends motor life 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 RTD temperature 38, 49 Optional RTD temperature protection (MPS-RTD module) for 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 MPS SERIES (PGR-6300) Motor Protection System Rev: 4-B-061517 Based on Manual Rev: 6-F-022117