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MPS Datasheet, PDF (1/2 Pages) RUBYCON CORPORATION – METALLIZED POLYPROPYLENE FILM CAPACITORS
Protection Relays and Controls
Motor Protection–Advanced
MPS SERIES (PGR-6300)
Motor Protection System
PHASE CT
PHASE CT
GF CT
PHASE CT
1
MPU-CIM
(Current Input Module)
MPU-32
L1
(Motor Protection Relay)
L2
M
RTD x 8
MPS-RTD
(Temperature
Input Module)
2
Simplified Circuit Diagram
A PHASE CT
PHASE CT
B GF CT
PHASE CT
MPS-CTU
L1
L2
2 (Control Unit)
M
RTD x 8
MPS-RTD
(Temperature
Input Module)
C
1 MPS-OPI
(Operator Interface)
Ordering Information
ORDERING NUMBER
MPS-CTU-01-00
MPS-CTU-02-00
MPS-CTU-03-00
MPS-CTU-04-00
COMMUNICATIONS
RS-485
RS-485 & DeviceNet™
RS-485 & Profibus®
RS-485 & EtherNet/IP™ & Modbus® TCP
ACCESSORIES
MPS-OPI-01-00
Phase CTs
Ground-Fault CT
MPS-RTD-01-00
MPS-DIF-01-00
SE-IP65CVR-M
REQUIREMENT
Recommended
Required
Recommended
Optional
Optional
Optional
© 2017 Littelfuse Protection Relays & Controls
Littelfuse.com/mps
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.
1 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
2 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
Accessories
A
Phase Current Transformers
Phase CTs are required to detect phase
currents.
B
Ground-Fault Current Transformer
Required zero-sequence current transformer
detects ground-fault current. Available with 5-A
and 30-A primary ratings for low-level pickup.
C
MPS-RTD Temperature Input Module
Optional module provides 8 inputs to connect
Pt100, Ni100, Ni120, and Cu10 RTDs.
D
MPS-DIF Differential Current Module
Optional motor differential protection,
compatible with core balance and summation
current transformer connections.
Rev: 4-B-061517
Based on Manual Rev: 6-F-022117