Multilin PROTECT 4A-120 - Default Chapter; Table of Contents

TABLE OF CONTENTS
1. INTRODUCTION
1.1 Motor Protection Requirements................................................... 1
1.2 Protect 4A Features.....................................................................3
1.3 Typical Applications .....................................................................4
1.4 Order Code ..................................................................................5
1.5 Technical Specifications ..............................................................6
2. INSTALLATION
2.1 Physical Dimensions ...................................................................7
2.2 Mounting ...................................................................................... 9
2.3 External Wiring ..........................................................................10
2.4 Control Power ............................................................................ 11
2.5 Trip Contacts ............................................................................. 12
2.6 Thermistor Input ........................................................................12
2.7 Programmable Controller Output .............................................. 14
2.8 Tamper Proof Cover .................................................................. 14
2.9 Field Options — Auto Reset .................................................... 15
Mechanical Jam ............................................16
Ground Fault Indication Only ........................16
Single Phase Defeat .....................................17
Factory Service .............................................17
2.10 Environment .............................................................................. 17
3. SETUP AND USE
3.1 Control and Indicators ............................................................... 19
3.2 Full Load Control .......................................................................20
3.3 Stall Time Control ...................................................................... 23
3.4 Ground Fault (Earth Leakage) Level Control ............................ 24
3.5 Ground Fault (Earth Leakage) Time Delay Control ...................25
3.6 Single Phase Detection .............................................................26
3.7 Thermistor Trip Detection .......................................................... 27
3.8 Reset/Test Button ...................................................................... 28
3.9 Motor Amps Output ....................................................................29
3.10 Fault Diagnosis ..........................................................................30
4. RELAY TESTING
4.1 Commissioning Tests ................................................................. 31
4.2 Overloads .................................................................................. 33
4.3 Single Phasing ...........................................................................34
4.4 Ground Fault/Earth Leakage .....................................................35
4.5 Thermistor ................................................................................. 37
4.6 4-20 mA Output ......................................................................... 38
4.7 Routine Maintenance Verification .............................................. 39
4.8 Problem Troubleshooting........................................................... 40
5. THEORY OF OPERATION
5.1 Hardware ................................................................................... 42
5.2 Firmware.................................................................................... 45