Littelfuse MPS - Page 5

Page iv
MPS Motor Protection System Rev. 6-F-022117
. Table of Contents
LIST OF FIGURES
FIGURE PAGE
1.1 Motor Protection System Block Diagram ............. 1-3
1.2 MPS Ordering Information .................................... 1-4
2.1 MPS-CTU Outline and Mounting Details ............. 2-2
2.1.1 MPS-CTU-XX-X1 Ring Terminal
Outline and Mounting Details ................................ 2-3
2.2 MPS-OPI Outline and Mounting Details ............... 2-4
2.3 MPS-CTU with OPI Outline and
Mounting Details .................................................... 2-5
2.3.1 MPS-CTU Ring Terminal with OPI Outline and
Mounting Details .................................................... 2-6
2.4 SE-IP65CVR-M Weatherproof Cover Outline .. 2-7
2.5 SE-IP65CVR-M Weatherproof Cover
Installation .......................................................... 2-8
2.6 MPS-RTD Outline and Mounting Details ............. 2-9
2.7 MPS-DIF Outline and Mounting Details ............. 2-10
2.8 EFCT-1 Outline and Mounting Details ............... 2-11
2.9 EFCT-2 Outline and Mounting Details ............... 2-12
2.10 EFCT-26 and SE-CS30-26 Outline and
Mounting Details .................................................. 2-13
2.11 SE-CS30-70 Outline and Mounting Details ........ 2-14
2.12 SE-CS30-4, -5, and -8 Outline and Mounting
Details ................................................................... 2-15
3.1 Residual Phase-CT Connection ............................. 3-1
3.2 Typical MPS Connection Diagram ........................ 3-2
3.3 Direct Connection ................................................... 3-3
3.4 1-PT Connection ..................................................... 3-3
3.5 2-PT Connection ..................................................... 3-3
3.6 3-PT Connection ..................................................... 3-3
3.7 Digital Tachometer Input (HSI) ............................. 3-4
3.8 Address Selection Switch Detail ............................ 3-5
3.9 Two Examples of I/O Module Connections .......... 3-6
3.10 MPS-RTD Connection Diagram ............................ 3-7
3.11 Core Balance Connection ....................................... 3-8
3.12 MPS Summation Connection ................................. 3-8
3.13 DIF Summation Connection .................................. 3-9
4.1 Menu Example ........................................................ 4-1
4.2 Menu Symbols ........................................................ 4-1
4.3 MPS-OPI Interface ................................................. 4-6
5.1 Class-20 Overload Curve ....................................... 5-3
5.2 Asymmetrical-Current Multipliers ......................... 5-5
5.3 Used I
2
t Bias Curve .............................................. 5-10
6.1 Typical 3-Wire Control .......................................... 6-3
6.2 Typical 2-Wire Control .......................................... 6-4
6.3 Starter Sequence 1 .................................................. 6-4
6.4 Starter Sequence 2 .................................................. 6-4
6.5 Starter Sequence 3 .................................................. 6-5
6.6 Starter Sequence 4 .................................................. 6-5
6.7 Starter Sequence 5 .................................................. 6-6
6.8 Starter Sequence 6 .................................................. 6-6
6.9 Full-Voltage Non-Reversing-Starter
Connection .............................................................. 6-7
6.10 Adjustable-Speed-Drive Connection ..................... 6-7
6.11 Soft-Start-Starter Connection ................................. 6-7
LIST OF FIGURES
FIGURE .............................................. PAGE
6.12 Full-Voltage-Reversing-Starter Connection .......... 6-8
6.13 Two-Speed Two-Winding-Starter Connection ...... 6-8
6.14 Two-Speed Constant- and Variable-Torque-
Starter Connections ................................................. 6-9
6.15 Two-Speed Constant-Horsepower-Starter
Connection ............................................................... 6-9
6.16 Reactor or Resistor-Starter Connection ................ 6-10
6.17 Slip-Ring-Starter Connection ................................ 6-10
6.18 Part-Winding and Double-Delta-Starter
Connections ........................................................... 6-11
6.19 Soft-Start-With-Bypass-Starter Connection ......... 6-12
6.20 Two-Winding-Starter Connection ........................ 6-13
6.21 Wye-Delta Open-Transition-Starter
Connection ............................................................. 6-14
6.22 Autotransformer Closed-Transition-Starter
Connection ............................................................. 6-14
6.23 Wye-Delta Closed-Transition-Starter
Connection ............................................................. 6-15
LIST OF TABLES
TABLE PAGE
3.1 MPS-OPI Address Selection ................................... 3-4
3.2 MPS-RTD Address Selection ................................. 3-5
4.1 Output-Relay Functions .......................................... 4-2
4.2 Digital-Input Functions ........................................... 4-3
4.3 Analog-Output Parameters ...................................... 4-4
4.4 Metering Display ..................................................... 4-8
4.5 Status Messages ....................................................... 4-8
5.1 Trip Time ................................................................. 5-4
5.2 Fault Duration Required for Trip ............................ 5-4
6.1 Start-Source Summary ............................................ 6-1
6.2 Starter Summary ...................................................... 6-3