NewMar 24-1000RM User manual

INSTALLATION & OPERATION MANUAL
MODELS:
24-1000RM
48-1000RM
48-1000IRM
48-2000RM
48-2000IRM
125-1000RM
125-2000RM
Newmar
2911 W. Garry Ave
Santa Ana, CA 92704
Tel: [phone]
Fax: [phone]
As of 8-11

Page 2
Table of Contents
1. INTRODUCTION.............................................................. 3
1-1 GENERAL INFORMATION...............................................................3
2. IMPORTANT SAFETY INSTRUCTIONS.................... 3
2-1 UL SAFETY STATEMENT ..............................................................3
2-2 OTHER SAFETY NOTES.................................................................3
2-3 SYMBOLS .....................................................................................4
3. PRODUCT OVERVIEW ................................................. 4
3-1 SYSTEM FEATURES ......................................................................4
3-2 BLOCK DIAGRAM.........................................................................5
3-3 FRONT PANEL ..............................................................................5
3-4 REAR PANEL ................................................................................6
3-5 BYPASS SWITCHING AND GROUNDING.........................................7
4. INSTALLATION.............................................................. 7
4-1 DELIVERY ....................................................................................7
4-2 INSTALLATION PROCEDURES ........................................................7
4-3 INSTALLATION TOOL KIT..............................................................8
4-4 LOCKING HARDWIRE ADAPTER ....................................................8
5. OPERATION ..................................................................... 8
5-1 CONNECTING TO THE INPUT POWER.............................................8
5-2 CONNECTING THE LOADS.............................................................8
5-3 FRONT PANEL OPERATION OF SEQUENCE
(SOFTWARE VERSION 0.0 OR 3.1) .................................................9
5-3A PROGRAMMING THE INVERTER
(SOFTWARE VERSION 0.2 OR 1.0) .................................................9
5-4 “DATA” BUTTON.........................................................................9
5-4 “DATA” BUTTON.........................................................................9
5-5 “STATUS” BUTTON...................................................................11
5-6 ERROR MESSAGE........................................................................14
6. MAINTENANCE AND TROUBLESHOOTING ........ 14
6-1 MAINTENANCE...........................................................................14
6-2 TROUBLESHOOTING ....................................................................15
6-3 ALARMS.....................................................................................15
7. COMMUNICATION...................................................... 16
7-1 DRY CONTACT COMMUNICATION TERMINAL .............................16
7-2 SNMP EXPANSION CARD SLOT (WEB)......................................16
7-3 RS-232 COMMUNICATION PORT (GUI)......................................16
8. TECHNICAL SPECIFICATIONS................................. 17
24-1000RM ………………………………………………………...19
48-1000RM ………………………………………………………...20
48-2000RM…………………………………………………………21
125-1000RM………………………………………………………..22
125-2000RM....................................................................................23
48-1000IRM.....................................................................................24
48-2000IRM.....................................................................................25
DRAWING NO.MPXXXNX02ABX..................................................24
9. OPTIONAL HARDWARE:............................................ 25

Page 3
1. INTRODUCTION
1-1 General Information
Thank you for choosing NEWMAR as the power products supplier to your company. NEWMAR’s Rackmount
Pure Sine Wave Power Inverters are designed and built for full reliability at multiple locations and variety of
applications. These intelligent, dependable inverters provide economical AC Power for all your network needs.
Operators spanning global continents have deployed the Rackmount Pure Sine Wave Power Inverters as the
choice for high availability AC power support from a DC source.
This manual contains information and technical details for all models in the Rackmount Pure Sine Wave Power
Inverter family. The general operation procedures are common, however in some instances, all or part of the
information will not apply to the specific model purchased. Refer to the specific model details page in Chapter 8:
Technical Specifications.
This user’s manual contains important technical instructions to be followed by qualified personnel
responsible for the installation, start-up and maintenance of this unit. We recommend that this manual
be read attentively to insure safe and reliable operation of this equipment.
Should you require any assistance, please call our Application
Engineering department at:
Tel: [phone] or 714.751.0488
Fax: [phone]
Email: [e-mail]
2. IMPORTANT SAFETY INSTRUCTIONS
2-1 UL Safety Statement
SAVE THESE INSTRUCTIONS - This manual contains important inverter instructions that should be followed during
installation and maintenance of the Rackmount Pure Sine Wave inverter unit.
To reduce the risk of electric shock, install the inverter in a temperature and humidity controlled indoor environment,
free of conductive contaminants. Ambient temperature should not exceed 50oC (122oF).
¾Depending on use, the AC output of the inverter may require a customer installed disconnect or fusing. For
telecom use, a GFCI has not been provided. The inverter offers standard AC short circuit protection.
¾The following precautions should be respected when working on the inverter:
Remove watches, rings, or other metal objects.
Use tools with insulated handles.
Wear rubber gloves and boots.
2-2 Other Safety Notes
¾Upon receipt, examine the shipment box for damage. Notify the carrier immediately, before opening if damage is
evident.
¾Do not open or disassemble the inverter, warranty will be voided.

Page 4
¾Do not operate near water or in excessive humidity.
¾Keep liquid and foreign objects from entering the inverter.
¾Install the inverter in a well-ventilated area. Do not block front air vents, or rear air exhausts of the unit.
¾Do not operate the inverter close to combustible gas or open fire.
¾Do not plug appliances with surging loads, or half bridge rectified loads, into the inverter.
¾Do not operate the inverter if the unit is leaking any liquid or if a white powdery residue is found to be present.
¾Temperature: The inverter should be operated in an ambient temperature range of 0°C to +50°C or output
efficiency may be affected. Air flow to the inverter must not be impeded.
¾Reduced air flow: Installation of the equipment in a rack should be such that the amount of air flow required for
safe operation of the equipment is not compromised.
¾Mechanical loading: Mounting of the inverter in a rack should be level and balanced.
¾Wiring: Adequate input power must be supplied to the inverter for proper use; correct wiring sizes must be
respected.
¾Grounding: Reliable grounding of rack-mounted equipment should be maintained.
¾Inverter DC power connection must be from a VDC source within the technical specifications of the unit under
installation.
2-3 Symbols
PROTECTIVE GROUNDING TERMINAL: A terminal, which must be connected to earth ground prior to
making any other connection to the equipment.
This symbol indicates the word "phase".
3. PRODUCT OVERVIEW
3-1 System Features
The Rackmount Pure Sine Wave series inverter is a highly reliable DC-AC inverter system, designed with
advanced power electronics and microprocessor technology offering the following features:
Self-Diagnosis
The Rackmount Pure Sine Wave series inverter is equipped with a self diagnosis microprocessor, able to identify
and show all failure messages on the LED/LCD display, with visual/audio alarm.
High Frequency Architecture
With its high frequency architecture design, the Rackmount Pure Sine Wave series inverter features high
efficiency, light weight and compact design.
Modular Design
Rackmount Pure Sine Wave inverters use a modular design structure, resulting in easy maintenance, and high
MTBF.
High Efficiency
Rackmount Pure Sine Wave series inverters offer advanced soft-switching designs which increase operating
efficiency and reduce switching noise.

Page 5
Advanced Protection Features:
¾Input reverse polarity-proof protection
¾Internal over temperature protection
¾Output overload protection
¾Output over/under voltage protection
¾Output short circuit protection
¾DC input short circuit protection: fuse and breaker
¾AC input short circuit protection: breaker
¾Input over/under voltage protection
¾Fan failure detection and protection
3-2 Block Diagram
Rackmount Pure Sine Wave Inverter Block Diagram
Rackmount Pure Sine Wave inverters feature IGBT (Insulated Gate Bipolar Transistor) technology, minimizing
weight and dimension, while enhancing output short circuit reliability and overload capacity.
Output voltage is provided in one of two ways:
1) From AC input bypass mode: (Off-Line Mode)
2) From DC to AC inverter mode: (On-Line Mode)
Either mode is front panel programmable; the selected operational mode will predetermine the “default” output.
In the first option, Off-Line mode, AC output power will be supplied through the AC bypass mode in its “normal”
operation. Upon AC input failure, output power will be diverted through the DC to AC inverter mode. Once AC mains
are restored, the unit will revert from inverter mode to bypass mode.
In the second option, On-Line mode, AC output power will be provided directly by the inverter from the VDC source.
Should the DC source or inverter fail, the system will transfer its output power through the bypass mode. Once the
DC power source is restored, the system will revert to “inverter” mode.
Transfer time from inverter to bypass, or bypass to inverter is < 4 ms.
The Off-line/On-line mode is changed from one to the other by pressing the ON button for less than 3 seconds when
normal output is available. The operational mode cannot be changed during an abnormal or fault condition.
3-3 Front Panel
http://www.majorpower.com
Tel: [phone] Fax: [phone]
MAJORPO WER.COM
DC INPUT DC
DC
DC
AC AC
OUTPUT
DC to DC Converter
FILTER
OUTPUT RELAY
BREAKER
DC to AC Inverter
AC BYPASS
INPUT FILTER BYPASS RELAY

Page 6
¾ON/OFF buttons:
These are the two power buttons for turning on or turning off the inverter.
Once the inverter is on, the “ON” button works as the On-Line <=> Off-Line mode switching button.
¾INVERTER ON Indicates the INVERTER has been turned on and is working normally (output is available to
support load equipment).
¾OVERLOAD Means that the inverter is in overload condition, or that there is an output short circuit.
¾DC ABNORMAL Means that the input DC voltage is “abnormal” and requires verification.
¾FAULT Indicates that the inverter is in “fault” condition. See Section 6-3 Alarms
**If utility by-pass is not being used, and AC input is not present, the fault LED will remain on.
¾LCD Display Selection Buttons
The following data: (output voltage, output frequency, load, input dc voltage, bypass ac voltage, bypass ac
frequency, etc.) and system status can be shown sequentially on the LCD display by pressing these two buttons.
For more information – Refer to Section 5 Operation
¾Ventilator
The ventilator on the front panel provides inverter cooling. Do NOT obstruct this vent or the fan exhaust in the
back of the unit!
¾Circuit Breaker (DC Input Breaker)
The DC circuit breaker will be tripped if there is a “short circuit” condition within the inverter. Reverse polarity
protection (input) and overload protection are integrated within the internal circuitry and neither of these faults
should trip the DC breaker.
3-4 Rear Panel
¾Communication Interface
Rackmount Pure Sine Wave inverter provides two standard and integrated communication interfaces
a) RS-232 interface.
b) Dry Contact interface.
Option) SNMP/Web Adapter card is available; please contact your Sales Distributor for information.
¾FAN
Inverter cooling is provided by DC fans. Forced air flow is from front-to-back.
¾AC Output Receptacles
NEMA 5-20R/5-15R ×4 or IEC-320 x 4

Page 7
¾AC Input Terminal
Terminal for bypass VAC input voltage. A 115 VAC, 20 amp circuit is recommended for full power operation.
¾AC Input Breaker
Breaker for AC input
¾DC Input Terminal
Terminal for VDC input voltage
¾Dry Contact Terminal
Dry contact terminal is connected to two Form C relays. One is for “DC abnormal” and the other one is for
“FAULT”.
When input DC voltage or fault occurs, the internal contact relay will open/close.
The terminal can support 5A / 250VAC
3-5 Bypass Switching and Grounding
DC/AC
AC Bypass
INV-L
INV-N
AC I/P
DC I/P
+
-
AC L
AC N
GND
GND
O/P
I nv er t er Rel ay
By pass Rel ay
Chassis
Chassis
Operation = Off – Line Mode:
AC input supplied from local service panel,
AC I/P neutral to earth connection provided externally.
(Usually service panel)
Operation = On– Line Mode:
DC input supplied from battery/DC power system
Inverter originated AC, therefore neutral to earth connection provided internally to chassis.
Grounding:
Chassis to Earth Ground connection should be made per customer installation specifications or prevailing safety
jurisdiction authority.
The inverter external safety ground plane is not switched by operation in any mode. Typically - the chassis is
mounted in a rack or a conductor to ground plane is installed.
4. INSTALLATION
4-1 Delivery
Upon receipt of goods, check the condition of the package. Should the package or unit be damaged, refuse
receipt and/or contact your shipper immediately to initiate your claim.
4-2 Installation Procedures
¾Mount unit using the brackets and screws supplied in the hardware kit.

Page 8
¾Please check that the input DC voltage meets the VDC specification of the inverter, and verify the correct DC
polarity connections have been made to the inverter.
¾Connect the DC input voltage cables before engaging the front panel DC breaker.
¾Use the following recommended cable sizes when connecting power to the inverter.
Model Capacity DC Input AC Input AC Output
24-1000RM 1 KVA #6 AWG #12 AWG NEMA 5-15R
48-1000RM 1 KVA #10 AWG #16 AWG NEMA 5-15R
48-2000RM 2 KVA #6 AWG #12 AWG NEMA 5-20R/5-15R
48-1000IRM 1 KVA #10 AWG #16 AWG IEC-320
48-2000IRM 2 KVA #6 AWG #12 AWG IEC-320
125-1000RM 1 KVA #12 AWG #16 AWG NEMA 5-15R
125-2000RM 2 KVA #12 AWG #12 AWG NEMA 5-20R/5-15R
4-3 Installation Tool Kit
Contents of the tool kit include:
•Poly zip bag containing twelve M4 screws and two 6-32 screws,
•Two large mounting brackets (23” or 24” rack mount),
•Two small mounting brackets (19” rack mount),
•One protective cover for AC input,
•One RS232 Cable.
4-4 Locking Hardwire Adapter
¾The optional adapter is a reliable locking NEMA 5-15 plug on one end and terminal screws on the other end.
The plug-to-terminal conversion is used to secure bare wire load circuit wiring to the output sockets of the
inverter. The adapter includes strain relief for the wires being connected to the terminals.
Documents Also Available: Application Note # AN-001
5. OPERATION
5-1 Connecting to the Input Power
¾Turn off the DC breaker before connecting the DC voltage to the input terminal. The DC terminal strip will
accommodate ring terminals with wire sizes recommended in Chapter 4-2.
¾NOTE: Sparks will occur if the breaker is “on” when connecting the input DC voltage. This is a normal condition
due to the charging current draw from the DC voltage charging the internal capacitor of the inverter.
¾Once the DC power has been connected, engage the DC breaker to operate the inverter.
5-2 Connecting the Loads
¾Calculate the total power consumption (VA) of the load being attached to the output. Make sure that the total
power consumption does not exceed the rated load of the inverter.
¾The load consumption can be monitored on the front screen of the inverter using the data button.
¾Should the total load exceed the capacity of the inverter, remove uncritical loads until the total load is within the
capacity of the inverter. Distribute removed loads to alternate sources or additional inverters

Page 9
¾Only two hardwire adapters will fit on the integrated NEMA duplex outlets of the inverter. Loads should be
distributed so not to exceed current ratings of hardware and cable.
5-3 Front Panel Operation of Sequence
(Software Version 0.0 or 3.1)
1. Make sure that the complete installation has been carried out correctly. When the breaker is turned on or the
utility input is available, the LCD of the inverter will display either following message:
2. Press the “ON” button for a minimum of one full second
(and Release within 10 seconds) to start the system
power. (if you press the ON key less than 1second, the CPU will not start up correctly). The inverter is in a
normal operation condition when either of the following messages appear on the LCD screen:
5-3a Programming the Inverter
The INVERTER will automatically initiate self-checks and start-up after 10 seconds.
SYSTEM IS AT
OFF-LINE MODE
SYSTEM IS AT
ON-LINE MODE
INVERTER : STD BY
BYPASS : ON
INVERTER : ON
BYPASS : STD BY
SET F=60 V= 115
I/P F=60 V= 118
Chang Setting?
Yes
(
ON
)
No
(
OFF
)
O/P FREQ=60HZ
SEL.
(
D
)
Sure
(
ON
)
O/P VOL=120V
SEL.
(
D
)
Su
r
e
(
ON
)
Press the ON key for
entry into
programming pages.
10SEC Time Out.
Start-Up Sequence
INVERTER On
Press the OFF key to enter into
the INVERTER main start-up
procedure or wait 10 secs.
Press ON Button
at least 1 full sec.
SET = Last Programmed Setting for Operation
I/P = Bypass Circuit Sensor – If Present.

Page 10
5-4 “DATA” button
You can use the "DATA" button to select the following information which is displayed on the LCD screen:
A) Output voltage:
Shows present output voltage.
OUTPUT VOLT.
*** □□□.□V ***
B) Inverter voltage:
Shows present “inverter” voltage.
INVERTER VOLT.
*** □□□.□V ***
C) Output frequency:
Shows present output frequency.
OUTPUT FREQ.
*** □□.□Hz ***
D) Bypass AC voltage:
Shows present input bypass AC voltage.
BYPASS AC VOLT
*** □□□.□V ***
E) Bypass AC frequency:
Shows present input bypass AC frequency.
BYPASS AC FREQ
*** □□.□Hz ***
F) Input DC voltage:
Shows the input DC voltage.
INPUT DC VOLTAGE
*** □□.□V ***
G) Output current:
Shows present output current.
OUTPUT CURRENT
*** □□.□A ***
H) Output VA:
Shows present output Volt-Amp