Littelfuse MPS Motor Protection System Manuals

Manuals and User Guides for Littelfuse MPS Motor Protection System. We have 1 Littelfuse MPS Motor Protection System manual available for free PDF download: Manual

Littelfuse MPS Manual

Littelfuse MPS Manual (148 pages)

MOTOR PROTECTION SYSTEM

Brand: Littelfuse | Category: Protection Device | Size: 11.21 MB

Table of Contents

Table of Contents
3
Able of Ontents
3
Ection
4
Disclaimer
6
1 Introduction

7
- General
  7
- MPS Features
  7
  - Protection
    7
  - Control -Starting Methods
    7
  - Metering
    7
  - Data Logging
    7
  - Inputs and Outputs
    7
  - MPS-OPI Operator Interface
    8
  - MPS-RTD Module
    8
  - MPS-DIF Differential Module
    8
  - Communications Interface
    8
- Ordering Information
  8
- Motor Protection System Block Diagram
  9
- MPS Ordering Information
  10
2 Installation

11
3 System Wiring

27
- General
  27
- Wiring Connections
  27
  - MPS-CTU Connections
    27
    
    Current Inputs
    27
    
    Supply Voltage
    27
    
    Voltage Inputs
    27
- Typical MPS Connection Diagram
  28
  - Direct Connection
    29
  - 1-PT Connection
    29
- 2-PT Connection
  29
- 3-PT Connection
  29
  - Digital Inputs
    29
    
    AC Operation
    30
    
    Analog Input (an IN)
    30
    
    Analog Output (an OUT)
    30
    
    Combined AC and DC Operation
    30
    
    DC Operation
    30
    
    I/O Module Communication
    30
    
    IRIG-B Input
    30
    
    Network Communications
    30
    
    PTC Input
    30
    
    Tachometer Input (HSI)
    30
    
    Dielectric-Strength Testing
    31
    
    DIF Summation
    31
    
    MPS Summation
    31
    
    MPS-DIF Connections
    31
    
    MPS-RTD Connections and Address Selection
    31
- Address Selection Switch Detail
  31
- Two Examples of I/O Module Connections
  32
- MPS-RTD Connection Diagram
  33
- Core Balance Connection
  34
- MPS Summation Connection
  34
- DIF Summation Connection
  35
4 Operation and Setup

37
- General
  37
- 4.2 Mps-Ctu
  37
  - LED Indication
    37
  - Reset Switch
    37
  - Phase-CT Inputs
    37
- Menu Example
  37
- Menu Symbols
  37
  - Earth-Fault-CT Input
    38
  - Voltage Inputs
    38
  - Motor Data
    38
  - Output Relay Assignment
    38
  - Digital Inputs 1 to 7
    39
  - Tachometer Input (HSI)
    40
  - Analog Output
    40
- Analog-Output Parameters
  40
  - Analog Input
    41
    
    Metering Only
    41
    
    Miscellaneous Configuration
    41
    
    Motor Speed
    41
    
    Network Communications
    41
    
    Protection
    41
    
    Starter
    41
    
    Synchronize to ASD
    41
  - 4.3 Mps-Opi
    41
    
    Configuring the MPS-CTU for
    41
    
    Local Control
    42
    
    OPI Control
    42
    
    Remote Control
    42
    
    Starter Control
    42
- MPS-OPI Interface
  42
  - Metering
    43
  - Messages
    43
    
    Status
    43
    
    Trip Reset
    43
- Metering Display
  44
  - Data Logging
    45
  - Statistical Data
    45
  - Emergency Thermal Reset
    45
  - Password Entry and Programming
    45
  - 4.4 Mps-Rtd
    46
  - 4.5 Mps-Dif
    46
  - Waveform Capture
    46
5 Protective Functions

47
- General
  47
- Overload
  47
  - Thermal Model
    47
- Class-20 Overload Curve
  49
  - Locked-Rotor Times
    50
  - Emergency Thermal Reset
    50
- Trip Time
  50
- Status Messages
  50
  - Overcurrent
    51
  - Auxiliary Overcurrent
    51
  - Reduced Overcurrent
    51
  - Jam
    51
  - Earth Fault
    51
  - Current Unbalance
    51
- Asymmetrical-Current Multipliers
  51
  - Phase Loss-Current
    52
  - Phase Reverse-Current
    52
  - Undercurrent
    52
  - Undervoltage
    53
  - Starts Per Hour/Time between Starts
    54
  - Failure to Accelerate and Underspeed
    54
  - Overfrequency
    54
  - Differential Current Protection
    55
  - PTC Temperature
    55
  - RTD Temperature
    55
  - Hot-Motor Compensation
    56
  - Analog Input
    56
    
    Bias Curve
    56
    
    Metering Only
    56
    
    Motor Speed
    56
    
    Protection
    56
    
    Synchronize to ASD
    56
6 Starter Functions

57
7 Theory of Operation

73
- Signal-Processing Algorithms
  73
- Power Algorithm
  73
- RTD Module (MPS-RTD)
  73
- Firmware Diagnostics
  73
8 Communications

75
- Personal-Computer Interface
  75
  - SE-Comm-RIS
    75
  - Devicenet Communications
    75
  - Ethernet Communications
    75
  - Profibus Communications
    75
9 Technical Specifications

77
- Control Unit (MPS-CTU)
  77
- Operator Interface (MPS-OPI)
  79
  - RTD Module (MPS-RTD)
    79
- Differential Module (MPS-DIF)
  80
10 Warranty

81
Appendix A MPS-OPI Menu Map

83
Appendix B MPS Set-Up Record

89
Appendix C MPS Modbus Protocol

103
Appendix D MPS A-B DF1 Protocol

105
Appendix E Communications Database Table

105
Appendix F Register Formats

135
Appendix G MPS Revision History

145

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