MYERS MP Series User manual

State of California
MP SERIES™ Battery Backup System
for Traffic Signals
MP2000E System
Volume One: Operating Manual
MP SERIES™ Battery Backup System for Traffic Signals
MP2000E System
Revision 5.0
Serial Numbers: MC18E16553 to present

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
IMPORTANT
EMERGENCY SHUTDOWN PROCEDURE IS ON INSIDE OF REAR COVER
For service, parts, or technical support contact Myers Emergency Power Systems at
TEL: [phone]
FAX: [phone]
www.myerseps.com
Or scan here
SAVE THESE INSTRUCTIONS

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page ii
IMPORTANT SAFETY INSTRUCTIONS ARE CONTAINED IN THIS MANUAL
To reduce the risk of electrical shock and to ensure the safe operation of the MP2000E, the
important safety instructions are marked with the symbols shown below. These symbols are
used throughout this manual to indicate that the instructions being presented are for
procedures that should only be carried out by qualified personnel.
Indicates presence of DANGEROUS VOLTAGE. Extreme caution
should be used.
Calls ATTENTION to important instructions. Follow them as indicated.
DANGER: Do not expose the MP2000E to rain or moisture.
DANGER: Total earth ground leakage current of loads connected to the MP2000E
should not exceed 2.4 mA.
The MP2000E generates, uses, and can radiate radio frequencies if not installed
and tested in accordance with the instructions contained in this manual. It has
been tested and found to comply with the limits established for a Class A
computing device pursuant to part 15 of FCC rules, when it is operated alone. It
also complies with the radio interference regulations of DOC, which are designed
to provide a reasonable protection against such interference, when this type of
equipment is used in a commercial environment. If there is interference to radio or
TV reception, which can be confirmed through switching the MP2000E on and off,
relocate the radio or TV equipment or use an electrical circuit other than the one
used by the MP2000E.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page iii
IMPORTANT SAFETY PRECAUTIONS
ONLY QUALIFIED PERSONNEL SHOULD SERVICE OR SUPERVISE THE SERVICE OF THE MP2000E.
DANGER: The MP2000E uses sealed lead-acid batteries with high energy and chemical hazard
levels. This manual contains important operation and safety instructions.
MP2000E SYSTEM SAFETY CHECKLIST

Unpack the MP2000E carefully. Report any shipping damage at once.
Read this manual. If you have any questions about safe installation, operations, or
maintenance of the system, contact the Myers Emergency Power Systems service
department at 610-868-5400.
Before installation, confirm that the voltage and current requirements of the load(s) is /
are compatible with the system’s output. Confirm that the line voltage and current are
compatible with the system’s input requirements.
Install the MP2000E on a dedicated power circuit.
Place a warning label on the enclosure indicating that a Battery Back-Up (BBS) is
located inside.
Use proper lifting techniques when moving the system.
Be advised that the MP2000E has more than one live circuit. It is fed from AC as well as
battery power. Power may be present at the output(s) even if the system is
disconnected from line power.
When installing a system in other than a Myers Emergency Power Systems cabinet,
verify that the environment meets the system specifications as presented in Section 3
of this manual.
SAVE THIS MANUAL
It contains important installation and operating instructions.
Keep it in a safe place.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page iv
BATTERY SAFETY CHECKLIST

High & dangerous voltages are present inside the system. Only qualified personnel
should perform installation and maintenance.
Live battery wires must not touch the MP2000E chassis or any other metal objects. This
can cause a fire or explosion.
Inspect the batteries once a year for signs of cracks, leaks, or swelling. Replace as
needed.
When batteries are in storage, charge them at least once every three months for
optimal performance and to extend their lifetime.
Always replace batteries with the ones of identical type and rating. Never install old or
untested batteries. Never mix old batteries with new. Never mix the different amp hour
rated batteries within one system.
Use insulated tools during servicing.
Remove all rings, watches, jewelry, or other conductive items before working inside
Follow local regulations for the disposal of batteries. Recycling is the best method.
Never burn batteries to dispose of them. Doing so may cause them to explode.
Do not open the batteries. The contents are toxic.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page v
STANDBY GENERATOR CHECKLIST

Note: If the MP2000E constantly switches between Battery and Line modes because
of line fluctuations, the input parameters should be broadened from Normal to
Generator (see Section 6.b.2.1 “Sense Type”)
In Generator mode, the acceptable range of input frequency and voltage is expanded to
accommodate the voltage and frequency fluctuations created by a generator or a power
source of such kind.
Use a generator with electronic speed and voltage controls which typically produces
the Total Harmonic Distortion in % (THD) to be less than 10%. Generators with
mechanical governors can force the system to run continuously in Battery mode.
Before installation, compare the generator’s output voltage to the MP2000E’s input
voltage requirements as listed on both nameplates. To ensure the system’s smooth
operation, use a generator capable of supplying 200% or twice as much power as
required by the total load.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page vi
UNPACKING &INSPECTION CHECKLIST

Carefully remove the MP2000E from the box and inspect the contents.
Verify that the box contains 1 MP2000E BBS System.
Verify that the box contains 1 temperature sensor probe cable with three-pin connector
Verify that the box contains 1 Operating Manual
Verify that the box contains 1 binder of Electrical/Mechanical Drawings
The Power Transfer Switch (PTS) and all the associated wiring & hardware required for
installation are supplied in a separate box.
The set of four (4) batteries may be shipped separately, if a large quantity of MP Series
systems is supplied.
SAVE THE ORIGINAL SHIPPING MATERIALS
When returning the MP2000E for servicing, use the original shipping box and Styrofoam
protectors. Myers Emergency Power Systems is not responsible for damage caused by
improper packaging of returned systems.
READ THE OPERATING MANUAL
Before installation, become familiar with the MP2000E by reviewing the procedures and
drawings in this manual. If you have any questions about safe installation, operation, or
maintenance, contact Myers Emergency Power Systems service department at 866-MY-
MYERS.
NOTE
If any items are missing or damaged, contact Myers Emergency Power
Systems (610-868-3500) and the shipping company immediately.
Most shippers have a short claim period.
COMPLETE THE FORMS BELOW FOR YOUR RECORDS &TO ASSIST WITH SERVICE REQUESTS

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page vii
Model Number MP2000E
Serial Number MC
The serial number can be found on the nameplate label located on the side of the unit.
Myers
Emergency
Power Systems
Sales Order
Number
MP2000E
MP2000E P/N G30219CA2 (Quick Connect VAC Input / Output)
Your Purchase
Order Number
Purchased From

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page viii
INSTALLATION LOCATION DETAILS
Installation Date
Installed By
Intersection
Street Names
City
State/Province Zip Code
Telephone
Number
Fax Number
E-Mail Address
Cabinet /
Controller Type

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page i
TABLE OF CONTENTS
Volume One: Operating Manual
Section and Title Page
1 Glossary ....................................................................................................................... 1-1
2 General Description...................................................................................................... 2-1
3 General Characteristics................................................................................................ 3-1
4 Installation .................................................................................................................... 4-1
5 Adjustments ................................................................................................................. 5-1
6 Theory of Operation ..................................................................................................... 6-1
6.a Systems Description..................................................................................................... 6-1
6.b Detailed Description of Circuit Operation ..................................................................... 6-3
7 Maintenance................................................................................................................. 7-1
7.a Preventive Maintenance............................................................................................... 7-1
7.b Trouble Analysis........................................................................................................... 7-2
7.c Trouble Shooting Sequence Chart ............................................................................... 7-9
7.d Wave Forms............................................................................................................... 7-13
7.e Voltage Measurements .............................................................................................. 7-15
7.f Alignment Procedures................................................................................................ 7-15
8 Parts List ...................................................................................................................... 8-1
Volume Two: Electrical/Mechanical Drawings
Section and Title Page
9 Electrical Interconnection Details & Drawings .............................................................. 9-1
10 Schematic & Logic Diagrams .................................................................................... .10-1
11 Assembly Drawings.................................................................................................... 11-1

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 1-1
Section 1 Glossary
1 Form C
Dry contact relay configuration.
1P
Single Phase (VAC power)
3P
Three Phase (VAC power)
AGM
Absorbed Glass Mat. A fiberglass mat material used in a lead acid
battery to hold the electrolyte to the plates and keep the electrolyte
inside the battery if the case is cracked or punctured. A technology
for making a battery non-spillable and that allows non-hazardous
material handling of AGM batteries on aircraft.
ASCII
American Standard Code for Information Interchange. A character-
encoding scheme. ASCII codes represent text in computers,
communications equipment, and other devices. that use text.
Alternating Current
An electrical current that pulsates the direction of flow of electrons.
The flow changes from positive to negative. Abbreviated as AC.
Ambient Temperature
The temperature of the surrounding environment such as the
cabinet or room temperature.
Amp Meter
Instrument that measures electrical current in a line.
Ampere Hour (Ah)
Term used to convey the capacity of a battery. Ampere hours is the
length of time a battery can deliver a rate of discharge under specific
conditions.
AVR
Automatic Voltage Regulation. MP2000 Buck / Boost operation
mode.
Battery
A device that produces electricity; may have several primary or
secondary cells arranged in parallel or series.
BBS
Battery Back-Up System.
BBU
Battery Back-Up Unit.
BJT
Bi-Polar Junction Transistor. A solid-state device in which the
current flow between two terminals (the collector and the emitter) is
controlled by the amount of current that flows through a third
terminal (the base).
Breakdown Voltage
The minimum voltage that causes a portion of an insulator to
become electrically conductive.
BTC
Battery Temperature Compensation. An allowance made in charge
controllers set points for battery temperatures.
Capacity
The quantity of electricity a battery can deliver at a given rate over a
specific period of time.
CAT5E
Category 5 Enhanced cable for 100MHZ, 1Gbps communications.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 1-2
Charging
The process a battery is subjected to return it to full output capacity.
The process is accomplished by passing an electrical current
through the battery plates and electrolyte to restore the chemicals to
their original state.
Continuity The condition of a circuit when it makes a connection between two
points.
CPU
Central Processing Unit. The “brain” of a computer, the CPU is
where data manipulation actually takes place.
Current
The rate electrons flowing over a period of time. This is usually
expressed in amperes
Cycling
The repeated charge and discharge of batteries
DB-9
A common type of electrical connector named for the characteristic
D-shaped metal shield that surrounds the parallel rows of pins or
sockets. A DB-9 connector has nine pins total, arranged in two
rows.
DCE
Data Communications Equipment. The serial communications host
(typically a PC ).
Deep Discharge
To expend 80% or more of a battery’s capacity.
DHCP
Dynamic Host Configuration Protocol. A standardized network
protocol used on Internet Protocol (IP) networks for dynamically
distributing network configuration parameters, such as IP addresses
for interfaces and services. With DHCP, computers request IP
addresses and networking parameters automatically from a DHCP
server, reducing the need for a network administrator or a user to
configure these settings manually.
Direct Current
Electrons flowing in a single direction. Abbreviated as DC.
DNS
Domain Name System. A system that controls a domain name's
website and email settings. When visitors go to a domain name, its
DNS settings control which entity's server it reaches out to.
DTE
Data Terminal Equipment. The serial communications device with
which the DCE communicates.
Electricity
The flow of electrons through a circuit or device.
E-Net
See Ethernet
Ethernet
A system for connecting a number of computer systems to form a
local area network or a means of connecting a computer to a modem
for connection to the Internet.
ETM
Ethernet Manager.
FIFO
First In First Out
Form C
Dry contact relay configuration. The MP2000 uses 1 Form-C dry
contact indicators.
FTP
File Transfer Protocol.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 1-3
Fuse
A device placed in a circuit designed to open or break the
connection at a specific level of current; a device placed in a circuit
to protect it from dead shorts and spikes in current.
Gateway
A node on a network that serves as an entrance to another network.
In enterprises, the gateway is the computer that routes the traffic
from a workstation to the outside network that is serving the Web
pages.
Gel Cell
A form of electrolyte used in lead acid batteries. A gel cell battery is
a non-spillable design.
Generator
A device that converts mechanical energy to electrical energy,
generally using electromagnetic induction. The source of the
mechanical energy may be a reciprocating or turbine engine or
internal combustion engine.
Hz Hertz. A unit of frequency defined as one cycle per second.
HTML
Hypertext Markup Language. A standardized system for tagging text
files to achieve font, color, graphic, and hyperlink effects on World
Wide Web pages.
I/P
Internet Protocol. The communications protocol of the public
Internet, many wide area networks (WANs) and most local area
networks (LANs).
Incandescent Light
The incandescent light bulb or incandescent lamp is a source of
artificial light that works by incandescence. An electrical current
passes through a thin filament, heating it and causing it to become
excited, releasing thermally equilibrated photons in the process. The
enclosing glass bulb prevents the oxygen in air from reaching the
hot filament, which otherwise would be destroyed rapidly by
oxidation.
IP Address
An identifier for a computer or device on a TCP/IP network. Networks
using the TCP/IP protocol route messages based on the IP address
of the destination.
LCD
Liquid Crystal Display. The type of display used on the MP2000E.
LED
A light-emitting diode (LED) is a semiconductor device that emits
incoherent narrow-spectrum light when electrically biased in the
forward direction. This effect is a form of electroluminescence. LED
lights are used in traffic signals to replace incandescent lights.
L-N-G
Line-Neutral-Ground. The three conductors in an electrical circuit.
Load
The impedance in a circuit. In a typical traffic intersection the load is
the signal heads and the electrical equipment housed in the signal
cabinet.
MAC
Media Access Control address, a hardware address that uniquely
identifies each node of a network.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 1-4
Maintenance Free
Battery
A sealed battery that requires no service. The battery is sealed so it
requires no water to be added.
Mask
A 32-bit number used to differentiate the network component of an
IP address by dividing the IP address into a network address and
host address.
MBPS
Maintenance Bypass Switch. A stand-alone switch used to manually
isolate the MP2000E BBS module from utility power and the
intersection controller. It facilitates maintenance and BBS
replacement operations without turning off power to the loads.
MIB
Management Information Base. A database used for managing the
entities in a communications network.
MOSFET
Metal Oxide Semiconductor Field-Effect Transistor. An isolated gate
switching device.
MOV
Metal Oxide Varistor. A voltage transient suppression device.
MPP or MEPS
Myers Emergency Power Systems.
MTBF
Mean Time Between Failures. A measure of hardware product or
component reliability.
mV/°C/Cell
Millivolts Per Degree Celsius Per Battery Cell. The unit of measure
for the ratio of the change in breakdown voltage to changes in
temperature.
OEM
Original Equipment Manufacturer.
OHM
Unit of electrical resistance. An ohm is a resistance that produces a
potential difference of one volt when a current of one ampere is
flowing through it.
Ohmmeter
A device or instrument for measuring resistance in an electrical
circuit.
Pb
The chemical symbol for lead.
PFC
Power Factor Correction. A feature included power supply boxes to
reduce the amount of reactive power generated.
Polarity
The positive pole and negative pole designation of a DC circuit such
as in a battery.
PTC
Positive Temperature Coefficient. A type of thermistor (is a type of
resistor whose resistance is dependent on temperature) in which
resistance rises suddenly at a certain critical temperature.
PTS
Power Transfer Switch. A device that moves the electrical load from
one power source to another.
Qualified
In reference to utility power input, offering steady power at the
correct voltage.
Resistance
The opposition of a circuit or conductor to allow the passage of
electrical current.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
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RFI
Radio Frequency Interference. A disturbance generated by an
external source that affects an electrical circuit by electromagnetic
induction, electrostatic coupling, or conduction.
RMS
Root Mean Square. The method of calculating the effective voltage
or current of an AC wave.
RS232
RS-232 is a standard for serial communication transmission of data.
It formally defines the signals connecting between a DTE (data
terminal equipment) such as a computer terminal, and a DCE (data
circuit-terminating equipment, originally defined as data
communication equipment), such as a modem. The RS-232 standard
is commonly used in computer serial ports.
Sine Wave
A waveform is a representation of how alternating current (AC)
varies with time. The most familiar AC waveform is the sine wave,
which derives its name from the fact that the current or voltage
varies with the sine of the elapsed time.
SMTP
Simple Mail Transfer Protocol. An Internet standard for email
transmission.
SNMP
Simple Network Management Protocol. A set of standards for
collecting information from, and configuring, network devices, such
as servers, printers, hubs, switches, and routers on an Internet
Protocol (IP) network.
Surgestor
A current (amps) transient suppression device.
TB
Terminal Block. A connector which allows more than one circuit to
connect to another circuit.
TCP/IP
Transmission Control Protocol/Internet Protocol. The basic
communication language or protocol of the Internet.
THD
Total Harmonic Distortion. A measurement of the harmonic
distortion present
TP
Test Point. A point within a piece of equipment or an equipment
string that provides access to signals for the purpose of fault
isolation.
TRL
Traffic LAN
TTL
Transistor-Transistor Logic. A class of digital circuits built from
bipolar junction transistors (BJT) and resistors.
Unqualified
In reference to utility power input, not offering steady power at the
correct voltage.
uC Microcontroller
A computer-on-a-chip used to control electronic devices.
USB
Universal Serial Bus. An external bus standard that supports data
transfer rates of 12 Mbps.
UPS
Uninterruptible Power Supply. A secondary power supply used to
maintain power in the event of a loss of utility power.
V
Volt. A unit of measure for potential electrical energy.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 1-6
VA
Volt-Ampere
VAC
Volts Alternating Current
VDC
Volts Direct Current.
VPC
Volts Per Cell. The amount of potential energy in a single battery
cell.
W
Watt. Unit of measurement for electrical power.

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
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Section 2 General Description
2.a Key MP200E System Benefits and Features
•ADVANCED POWER PROTECTION TECHNOLOGY: MP2000E is a Battery Backup System (BBS)
designed for both indoor and outdoor applications. The MP2000E BBS provides
continuous power to traffic and signal equipment.
•LOCAL AND REMOTE COMMUNICATIONS: USB / DB9 RS232 with optional Ethernet-to-serial
adapter or embedded HTML Ethernet.
•EASE OF MAINTENANCE: The batteries can be changed without shutting down the
intersection loads or the MP2000E.
•SMART CHARGING: MP Series smart charge technology ensures the batteries are always
at peak performance.
•USER-FRIENDLY SUPERVISION: The LCD panel provides “At a Glance” monitoring and
control.
2.b System Description
The MP2000E System provides backup power to traffic control signal equipment. It consists of
the MP2000E Battery Back-Up (BBS) System, the Power Transfer Switch (PTS), and batteries
that provide back up power when the line is unqualified. These three components can be
mounted inside an enclosure to provide protection from most weather conditions.
The traffic signal cabinet is powered continuously when a MP2000E system is installed. The
system allows connection for the normal utility power using standard terminal blocks or an
optional generator power via standard 30 Amp. (optional 50 Amp) generator receptacle. The
optional bypass switch redirects utility power to the load and allows the BBS to be removed
for service on a temporary or permanent basis without disrupting the operation of the traffic
signal.
With a fully functioning BBS system, the PTS allows utility power to flow out to the traffic
cabinet, when the utility line is qualified (within the acceptable range as programmed). If the
BBS is not functioning, the PTS will bypass the BBS allowing the utility to flow out to the
traffic cabinet. The BBS input is protected with one circuit breaker located on the PTS as well
as another one located on the BBS module. When the BBS internal BOOST and BUCK is
enabled, the PTS is activated allowing BBS to continuously boost the output when input is
lower, buck or lower the output when input is higher or run from batteries when input power is
outside the specified acceptable range. The PTS has dual NEMA power receptacles for
optional battery heating pads, connecting a vacuum cleaner, or a PC for maintenance.
The smart, temperature compensated internal charger continuously monitors and maintains
the batteries in a fully charged state. For the protection of the battery, the charging process is

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 2-2
automatically discontinued when the battery temperature exceeds 50°C. When the batteries
are fully charged, the smart charger provides a continuously pulsating ON-OFF trickle charge
to keep the batteries topped-off or fully charged. When input power is not qualified or is
outside the acceptable range, the BBS derives the DC power from the storage tank of four
batteries connected in series and maintains output power until the batteries are depleted
down to a specified level or the utility power returns within its specified levels. The traffic
intersection will continue to operate in full operation and/or in flash mode as programmed by
the user. Programmable contacts allows the user to place the intersection in flash mode as
soon as the input power is lost or after the batteries are depleted down to a certain capacity
that is determined and programmed by the user. The amount of back-up time battery power
can provide depends on the Amp-hour capacity of the batteries as well as the intersection
watt load that requires support.
Figure 2-1: Simplified MP2000E System Block Diagram

MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
Volume One: Operating Manual Page 2-3
2.c Battery Backup System Description
The MP2000E BBS System shown in Figure 2-2 below provides control functions and backup
power as described above.
Alternate Configuration
Figure 2-2: MP2000E Battery Backup System Front Panel
2.c.1 Battery Backup System Display
Figure 2-3: MP2000E Battery Backup System Display
Description of Features Highlighted in Figure 2-3

48VDC
B
ATTERY
C
ONNECTOR
: Connects
the battery to the unit. The battery
string voltage is 48VDC.

B
ATTERY
V
OLTAGE
T
EST
P
OINTS
: Battery
voltage can be measured at these Test
Jacks only when the battery circuit
breaker is turned ON. Note: TEST JACKS
ARE NOT DC POWER OUTLET
TERMINALS.

B
ATTERY
C
IRCUIT
B
REAKER
: Acts as an
ON/OFF switch for battery power.
Must be in the ON position for normal
operation.

L
IQUID
C
RYSTAL
D
ISPLAY
(LCD)
C
ONTROL
PANEL: The BBS can be controlled and
monitored via this LCD panel. See
Sections 6.b.7 – 6.b.15 for further
information.





MP SERIES™ Battery Backup System for Traffic Signals: MP2000E System
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2.c.2 Battery Backup System Power Inputs/Outputs
Figure 2-4: MP2000E Battery Backup System Power Inputs/Outputs
Description of Features Highlighted in Figure 2-4

AC
I
NPUT
&
O
UTPUT
C
IRCUIT
B
REAKER
:
Acts as a line and output power
ON/OFF switch to facilitate the unit’s
maintenance or replacement. Must be
in the ON position for normal
operation.

AC
I
NPUT
: Quick Connect socket or
Terminal Block for the input line power
plug.

AC
O
UTPUT
:
Quick Connect socket or
Terminal Block for the output line power
plug.
2.c.3 Communication Interface
Figure 2-5: MP2000E Battery Backup System USB / Serial Interface / RS232 Connector / Ethernet
↑

↑


↓

↓
↑

↑

Alternate Component