Siemens Energy, Inc.
1 Introduction........................................ 1
1.1 About This Manual ............................... 1
1.2 Features of the MJ-4A & MJ-4B Control
Panels .................................................... 1
1.3 Mounting on Siemens Regulators ...... 2
1.4 Mounting on Cooper Regulators......... 2
1.5 Mounting on GE Regulators ................ 2
1.6 Mounting onto LTCs ............................. 2
1.7 Support Documentation ...................... 2
1.8 Siemens Website.................................. 2
1.9 Control Panel Type................................ 2
2 Using the MJ-4A & MJ-4B Operator
Panel and Controls ............................ 3
2.1 Introduction to the Front Panel............ 5
2.2 Sixteen-Character Display Screen ...... 5
2.3 Data Display.......................................... 5
2.4 Indicators .............................................. 8
2.5 Switches ...............................................10
2.6 Binding Posts .......................................11
2.7 Fuses.....................................................11
2.8 Terminal Strip Connections ............... 12
2.9 Local Data Port.................................... 14
3 Viewing and Changing MJ-4A & . .
MJ-4B Data Items ............................ 15
3.1 Viewing Data Items ............................ 15
3.2 Understanding Menus ....................... 15
3.3 Using the Menu Selection Keys to View
Data Items ........................................... 15
3.4 Changing Data Items.......................... 16
3.5 Using the Fast-Path Keys to View/
Change Data Items ............................. 17
4 Setting Up the MJ-4A & MJ-4B
Control Panel.................................... 18
4.1 Setup—Overview................................ 18
4.2 Setup for Retrofit Panels .....................19
4.3 Defining Your Regulator—
the <CONFIGURE> and <ADV
CONFIGURE> Menus...........................19
4.4 Setting Control Levels—
the <REGULATOR> Menu................... 28
4.5 Activating Data Logging—
the <LOG SETUP> Menu .................... 31
4.6 Password Security Protection—
the <PASSWORD> Menu.................... 32
4.7 Communications Definition—
the <COMMUNICATIONS> Menu...... 35
4.8 Regulator Maintenance—
the <MAINTENANCE> Menu ............. 37
4.9 Hardware Configuration—
the <DIAGNOSTICS> Menu ............... 37
4.10 Setting up the Quick Key.................... 38
5 Reading and Interpreting MJ-4A &
MJ-4B Control Panel Data ...............39
5.1 Source and Load Definitions ............. 39
5.2 P2 Voltage Calculation........................ 39
5.3 Meter Data—the <METER> Menu...... 39
5.4 Demand Data—
the <DEMAND> Menus ...................... 41
5.5 Event Log - the <EVENT LOG> Menu 41
5.6 Interval Log — the <INTERVAL LOG>
Menu.................................................... 42
5.7 Operation Counter Data -
the <COUNTERS> Menu..................... 43
5.8 Alerts—the <Alert> Menu................... 44
5.9 Harmonics Data—
the <HARMONICS> Menu .................. 45
5.10 Local Data Port—
the <COMMUNICATIONS> Menu ...... 45
5.11 VRC Status - the <REGULATOR> Menu .
.............................................................. 45
6 MJ-4A & MJ-4B Control Panel
Automatic Mode...............................46
6.1 MJ-4A & MJ-4B Control Modes......... 46
6.2 Overview of Automatic Control
Algorithm ............................................ 47
6.3 Voltage Sensing and Correction ........ 48
6.4 Voltage Limit Control.......................... 48
6.5 Reverse Power Flow ........................... 48
7 Software for Communicating with the
MJ-4A & MJ-4B Control Panel ........54
7.1 Communications Software ................ 54
7.2 Uploading New MJ-4A & MJ-4B
Software .............................................. 54
8 MJ-4A & MJ-4B Control Panel Basic
Troubleshooting ...............................55
8.1 Introduction......................................... 55
8.2 Visual Inspection................................. 55
8.3 Troubleshooting Based on Alert
Messages ............................................ 56
8.4 Voltage and Current Calibration ........ 56
8.5 MJ-4A & MJ-4B Self Testing .............. 57
8.6 Communications Module
Troubleshooting.................................. 57
8.7 Tap Tracking ........................................ 57
A Specifications ...................................58
B Physical Installation on Siemens
Regulators.........................................59
C Regulator Control Diagrams............61
D Menu Parameters.............................63