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Siemens MJ-4 Series User Manual
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Siemens Energ
y
, Inc.
MJ-4A
(TM)
and MJ-4B
(TM)
V
olt
age Regulator
Control Panel
Installation and Operati
ons Manual
Manual No. 21
-1
1
5-5
27
-023 rev02
Band
-
width
Voltag
e
Level
Time
Delay
Regulation Setting
Resis
-
tance
Reac
-
tance
+/
-
Line Drop Compensation
VRC
VLC
U2
P2
Neutra
lite
Drag Hands
Ale
rt
Reverse Power Flow
Remote Auto Inhibi
t
High Band
In Band
Low Band
Remote Disabled
Raise
/
Lower
Me
nu
Exter
nal
Power
Off
(
By p
ass
Positio
n
)
Normal
Ac
cu
/
S
t
a
t M
J
–
4
A
Voltage Limit Control
Voltage Reducti
on Control
Test
Reset
Ground 120
V
AC
6.
0
A
6.
0A
0
.75
A
Ground Voltage
Fuses
Loa
d Vo
l
tag
e
(
unscale
d
)
Max
Min
Change
Al
e
r
t
Op
Count
Cancel
Reset
Mai
nte
-
nance
Save
Quick
Raise
Low
er
Au
t
o
Manual
Tap C
ontrol
Off
(
By pass
Positio
n
)
Remote
/
Local
Tap Co
ntrol St
atus
Off
(
By pass
Pos
itio
n
)
Data P
or
t
Exte
rnal
Sens
ing
Power
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Introduction
5
About this Manual
5
Features of the MJ-4A & MJ-4B Control Panels
5
Mounting on Siemens Regulators
6
Mounting on Cooper Regulators
6
Mounting on GE Regulators
6
Mounting Onto Ltcs
6
Support Documentation
6
Siemens Website
6
Control Panel Type
6
2 Using the MJ-4A & MJ-4B Operator Panel and Controls
7
Introduction to the Front Panel
9
Sixteen-Character Display Screen
9
Data Display
9
Indicators
12
Switches
14
Binding Posts
15
Fuses
15
Terminal Strip Connections
16
Local Data Port
18
3 Viewing and Changing MJ-4A & MJ-4B Data Items
19
Viewing Data Items
19
Understanding Menus
19
Using the Menu Selection Keys to View Data Items
19
Changing Data Items
20
Using the Fast-Path Keys to View/Change Data Items
21
4 Setting up the MJ-4A & MJ-4B Control Panel
22
Setup-Overview
22
Setup for Retrofit Panels
23
Defining Your Regulator
23
The <CONFIGURE> and <ADV
23
CONFIGURE> Menus
23
Setting Control Levels- the <REGULATOR> Menu
32
Activating Data Logging- the <LOG SETUP> Menu
35
Password Security Protection- the <PASSWORD> Menu
36
Communications Definition- the <COMMUNICATIONS> Menu
39
Regulator Maintenance- the <MAINTENANCE> Menu
41
Hardware Configuration- the <DIAGNOSTICS> Menu
41
Setting up the Quick Key
42
5 Reading and Interpreting MJ-4A & MJ-4B Control Panel Data
43
Source and Load Definitions
43
P2 Voltage Calculation
43
Meter Data-The <METER> Menu
43
Demand Data- the <DEMAND> Menus
45
Event Log - the <EVENT LOG> Menu
45
Interval Log - the <INTERVAL LOG> Menu
46
Operation Counter Data - the <COUNTERS> Menu
47
Alerts-The <Alert> Menu
48
Harmonics Data- the <HARMONICS> Menu
49
Local Data Port
49
The <COMMUNICATIONS> Menu
49
VRC Status - the <REGULATOR> Menu
49
6 MJ-4A & MJ-4B Control Panel Automatic Mode
50
MJ-4A & MJ-4B Control Modes
50
Overview of Automatic Control
51
Algorithm
51
Voltage Sensing and Correction
52
Voltage Limit Control
52
Reverse Power Flow
52
7 Software for Communicating with the MJ-4A & MJ-4B Control Panel
58
Communications Software
58
Uploading New MJ-4A & MJ-4B Software
58
8 MJ-4A & MJ-4B Control Panel Basic Troubleshooting
59
Introduction
59
Visual Inspection
59
Troubleshooting Based on Alert
60
Messages
60
Voltage and Current Calibration
60
MJ-4A & MJ-4B Self Testing
61
Communications Module
61
Troubleshooting
61
Tap Tracking
61
A Specifications
62
B Physical Installation on Siemens Regulators
63
C Regulator Control Diagrams
65
D Menu Parameters
67
CONFIGURE> Menu: Leading and Lagging Regulators
67
REGULATOR> Menu: Line Drop Compensation
67
CONFIGURE> Menu: Transformer Polarity
69
E Hazards of Bypassing a Regulator off Neutral
73
F Communications Module Installation
74
G Menu Structure Quick Reference
76
HMJ-4A & MJ-4B Firmware Versions
78
I Terminal Strip Wiring
79
J MJ-4A & MJ-4B Jumpers and Battery Replacement
80
MJ-4A & MJ-4B Jumpers
80
Battery Replacement
81
J.2 Battery Replacement
81
K Terminal Strip Connections
82
L MJ-4A & MJ-4B Operating Procedures
85
Other manuals for Siemens MJ-4 Series
Installation Manual
41 pages
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Siemens MJ-4 Series Specifications
General
Product Type
Control Panel
Manufacturer
Siemens
Input Voltage
24 VDC
Protection Class
IP65
Dimensions
300 x 200 x 100 mm
Weight
2.5 kg
Series
MJ-4 Series
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