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Table of Contents
                            OPERATIONS AND MAINTENANCE MANUAL
IPM at your service
Important Notice
How To Use This Manual
Handling and Unpacking Instructions
Section I Theory of Operation
	1.1 General
	1.2 Rectifier/Charger
	1.3 Inverter
	1.4 Static Bypass Switch
	1.5 Batteries
	1.6 Control Logic and Control Circuitry
	1.7 Digital Monitoring Panel
	1.8 Multi-Level Passwords
	1.9 Phone Home Alarm Reporting
	1.10 Dial-Back Security
Section II Installation
	2.1 General
	2.2 Mechanical Preparation of UPS
	2.3 AC Power Connection
	2.4 Activating the Batteries
	Figure 2–2. Battery Interconnection Diagram
Section III Operation
	3.1 General
	3.2 Safety Considerations
		3.2.1 Cleanliness
		3.2.2 Fire
		3.2.3 Security/Personnel
	3.3 Radio Frequency Energy Hazard
	3.4 Digital Monitoring Panel
		3.4.1 Indicator Light
		3.4.2 Message Screens Active Alarm Condition Alarm History Input Voltage Input Current: Bypass Voltage Input/Output Frequency Inlet Temperature Rectifier/Booster Link Voltage Battery Amps Maximum Output Crest Factor Output kW/kVA Output Power Factor Output Voltage Output Current Date Time UPS Maintenance Menu Other Messages
		3.4.3 Display Select Pushbuttons
		3.4.4 Parameter Adjust Pushbuttons
		3.4.5 Alarm Silence Pushbutton
		3.4.6 Emergency Power Off Pushbutton
	3.5 System Controls
	3.6 UPS Operating Procedures
	3.6.1 System Startup Procedure
	3.6.2 Alarm Identity/History
		Table 3–1. Typical Alarm History Screens
		Table 3–2. Alarm History Messages and Descriptions with Corrective Actions
	3.6.3 UPS Maintenance Menu Rectifier Maintenance Menu Inverter Maintenance Menu SBS Maintenance Menu System Maintenance Menu Alarm Configuration Menu Communications Menu UPS Identification Menu Password Maintenance Menu
	3.6.4 System Shutdown
	3.6.5 CPU Fault
Section IV Maintenance
	4.1 General
	4.2 Safety Precautions
	4.3 Preventive (Periodic) Maintenance
		4.3.1 Air Flow
		4.3.2 Cable Connections
	4.4 Remedial Maintenance (Troubleshooting)
		4.4.1 General
		4.4.2 Status/Alarm Indicator
	4.5 Fuses
	4.6 Battery Maintenance
		4.6.1 Safety Precautions
		4.6.2 Maintenance Shutdown of Batteries
		4.6.3 Inspection and Periodic Maintenance
		4.6.4 Battery Test
		4.6.5 Battery Replacement
	Figure 4–1.
	4.6.6 Reactivating the Batteries
Section V Spares, Training, Maintenance
	5.1 Spare Parts
	5.2 Training
	5.3 Continuing Maintenance Program
Section VI Glossary
Section VII Remote Video Terminal
	7.1 General
	7.2 RS232 Interface
	7.3 UPS Maintenance Menu
	7.4 Alarm History Screen
	7.5 P-Record
Document Text Contents
Page 1



International Power Machines®

BalancedPower II

Model BPII 20
Model BPII 25
Model BPII 30

164201019 Rev A

Uninterruptible Power System


This manual contains important safety instructions
that should be followed during installation and
maintenance of the UPS and Battery Cabinets.

International Power Machines®
10451 Brockwood Road
Dallas, Texas 75238-1641
Phone: (214) 342-6100

Service Hotline (800) 777-8922

Page 2

IPM at your service

International Power Machines Corporation considers prompt customer
service to be an integral part of its product. Our Field Service Department
is accessible by telephone 24 hours a day, seven days a week to
implement timely servicing of our equipment.


Phone: (800) 777-8922
Outside U.S.: (919) 871-1800

Fax: (214) 342-6115

When calling for service assistance, have the following
information and record of readings and alarm lights from
the machine's monitor panel available for the IPM service

Serial Number:
(On lable inside machine's front door)

Input Output


Frequency (Hz)

Model No. Monitor

10451 Brockwood Rd, Dallas, Texas 75238-1641, U.S.A.
(214) 342-6100

International Power Machines�

Page 32

Section III


Page 3.19BPII 20–30

3.6.3 UPS Maintenance Menu

The UPS Maintenance Menu performs a variety of maintenance functions including
password changes and adjustment of time and date. It is divided into the following
secondary menus in the order stated. The detailed instructions for each are given on the
following paragraphs. Rectifier Maintenance Menu Inverter Maintenance Menu SBS Maintenance Menu System Maintenance Menu Password Maintenance Menu

1. To bring the UPS Maintenance Menu to
the screen, depress the pushbutton as
many times as necessary until the screen
reads like this.

2. Press . This will display±

NOTE: there is a further discussion of multi-level passwords in Section 1.8.

3. The UPS is shipped with the password
4F00. To enter this password, depress
or to change the first digit to ª4º. is
the shortest way to get to the ª4º the first
time. The screen will now look like this.

4. Now depress to activate the second
digit. Press or until the ªFº shows,
like this:

5. Depress to activate the third digit.
The screen will show:

6. Depress again to activate the fourth
digit to obtain:

Maintenance Menu

Enter Password


Enter Password


Enter Password


Enter Password


Enter Password


Page 33

Section III


Page 3.20BPII 20±30

7. Depress to bring up the first of the
secondary menus. Depress to bring
up the other four Maintenance Menus in
turn. Sometimes it will be faster to
depress to obtain the desired menu.

0. Rectifier Maintenance Menu

To be used only when advised by qualified service personnel.

1. When in the Rectifier Maintenance

Menu, depress . When this screen is
displayed, press to reset the faults.

2. This message will appear on the screen.
To confirm the previous action, press

± returning the screen to ±

3. Press to obtain this screen.

4. Press to return to the Rectifier
Maintenance Menu.

0. Inverter Maintenance Menu

1. Press to advance to the Inverter
Maintenance Menu.

2. Press to obtain this screen. The
crest factors shown here are for
information only. No adjustments can be

Maintenance Menu

Reset Rect. Faults
UP = reset

Yes = UP No = DN

Reset Rect. Faults
UP = Reset

Return to
Previous Menu

Maintenance Menu

Maintenance Menu

Output CF A B C

Page 64

Section VII
Remote Video Terminal

Page 7.3BPII 20–30

7.3 UPS Maintenance Menu

The description given in Section 3.6.3 for the UPS Maintenance Menu applies
equally to its use from a remote terminal. Make sure that “UPS Maintenance Menu” is in the
upper left–hand area of the CRT screen. Then use the keys that correspond to the
pushbuttons described in this manual. You will need to use the operator password (level 4)
in order to obtain access to the UPS Maintenance Menu. The various screen messages will
appear on the CRT also in the upper left–hand area.

7.4 Alarm History Screen

Below is a typical Alarm History screen. The alarms are displayed in date/time order
with the most recent alarm at the bottom of the screen.

Mo/Dy/Yr Hr:Mn:Sc:Cy:Q Alarm (U=Up D=Dn +=PgUp –=PgDn T=Top B=Bot M=Monitor)

09/20/91 14:59:27.07.0 sbs output breaker closed

09/20/91 14:59:27.07.0 inv not phase locked

09/20/91 14:59:27.07.0 Inv transfer enabled

09/20/91 14:59:27.07.0 inv retransfer enabled

09/20/91 14:59:27.07.0 inv fan normal

09/20/91 14:59:27.08.0 input frequency normal

09/20/91 14:59:27.08.0 sbs bypass frequency normal

09/20/91 14:59:27.10.0 sbs bypass voltage low

09/20/91 14:59:28.41.0 rct phase locked

09/20/91 14:59:28.42.0 input voltage low

09/20/91 14:59:32.23.0 input voltage normal

09/20/91 14:59:32.23.0 sbs bypass voltage normal

09/20/91 14:59:32.23.0 inv phase rotation normal

09/20/91 14:59:32.23.0 rectifier normal

09/20/91 14:59:37.07.1 inv normal temperature

09/20/91 14:59:37.08.0 inv fuse normal

09/20/91 14:59:37.08.0 inv power supply normal

09/20/91 14:59:37.18.0 inv current normal

09/20/91 14:59:37.18.0 output voltage low

09/20/91 14:59:37.18.0 inverter off

09/20/91 14:59:37.18.0 sbs off

09/20/91 14:59:39.09.0 inv phase locked

09/20/91 14:59:47.33.0 dc voltage normal

Page 65

Section VII
Remote Video Terminal

Page 7.4BPII 20–30

A convenient way of viewing the Alarm History screen is to use the commands at the
top of this screen:

U Scrolls up one alarm T Goes to the top of the alarm history buffer
D Scrolls down one alarm B Goes to the bottom of the alarm history buffer
+ Scrolls up one page M Monitors the occurrence of alarms. All new
± Scrolls down one page alarms are added to the bottom of the screen.

7.5 P-Record

P±Record format is for users who need to query the UPS periodically for information
as to its status using custom-developed monitoring software. It is used also when the phone
home capability is enabled or when monitoring the UPS by optional UPS Manager Plus�

software (available from IPM).

If development of custom monitoring software is required, see Drawing
950±010±A416, Revision C, UPS Remote Monitor Protocol, Sheets 2 through 28 following
this page. Sheet 1, a cover sheet, has been omitted.

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