Lenovo RT5.0kVA User manual

3U Rack or Tower UPS RT5.0kVA
and RT6.0kVA
Installation and User's Guide

Note:
Before using this information and the product it supports, read the general information in Appendix
B “Getting help and technical assistance” on page 49, Appendix C “Notices” on page 53, the safety
information, warranties, and licenses information on the Lenovo Web site at:
https://support.lenovo.com/documents/LNVO-DOCS
Third Edition (December 2020)
© Copyright Lenovo 2015,2020.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a GeneralServices
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925

Contents
Safety..........................................................iii
Guidelines for trained service technicians ....................iv
Inspecting for unsafe conditions............................iv
Guidelines for servicing electrical equipment . . v
Safety statements.......................................................vi
Product safety..............................................................x
Chapter 1.Introduction..............................1
Notices and statements................................................1
Environmental protection..............................................1
Chapter2.Presentation.............................5
Standard installations...................................................5
Rear panels.................................................................6
Accessories.................................................................7
Control panel...............................................................7
LCD description...........................................................8
Display functions..........................................................9
User settings..............................................................10
Chapter3.Installation..............................15
Inspecting the equipment...........................................15
Unpacking the unit.....................................................15
Checking the accessory kit.........................................16
Connecting the internal battery pack...........................17
Connecting the EBM(s) ..............................................18
Rack installation.........................................................18
Preparing the UPS for rack mounting...................18
Rack mounting of the UPS and EBM....................19
Tower installation.......................................................20
Installing the communication card...............................21
Installation requirements ............................................21
Chapter 4. Power cables
connection................................................23
Access to terminal blocks...........................................23
Input/Output connection.............................................23
Chapter5. Operation................................25
UPS startup and shutdown.........................................25
Starting the UPS.................................................25
Starting the UPS on battery power.......................25
Shutting down the UPS .......................................26
Monitoring the UPS operating mode...........................26
Operating modes: descriptions............................26
Operating modes: summary ................................27
Transferring the UPSbetween modes.........................27
© Copyright Lenovo 2015, 2020
Setting High Efficiencymode......................................28
Configuring Bypass settings.......................................28
Bypass transfer out of tolerance..........................28
Interrupt time......................................................28
Configuring battery settings........................................28
Retrieving the Event log.............................................29
Retrieving the Fault log..............................................29
Chapter6.Communication......................31
Communication ports.................................................31
Connecting the RS232 or USB communication
port....................................................................31
Relay output contacts..........................................31
Remote On/Off...................................................32
Remote Power Off..............................................32
Replacing the communication card.............................34
UPS Power Management suite...................................34
Chapter 7.UPS maintenance...................35
Equipment care.........................................................35
Storing the equipment................................................35
Replacing battery packs.............................................35
Replacing the internal battery pack......................36
Replacing the EBM(s).........................................37
Testing a new battery pack..................................38
Recycling the used equipment ...................................38
Chapter 8.Troubleshooting.....................39
Alarms and faults.......................................................39
Silencing the alarm....................................................42
Service and support...................................................42
Chapter 9.Parts listing.............................43
Appendix A. UPS model
specifications ...........................................45
Appendix B. Getting help and
technical assistance ................................49
Before you call...........................................................49
Using the documentation ...........................................50
Getting help and information from the World Wide
Web .
. . . . . . . . . . . . . . . . . .
50
How to send DSA data . . . . . . . . . . . 50
Creating a personalized support web page . . . 50
Software service and support . . . . . . . . . 51
Hardware service and support . . . . . . . . 51
Taiwan product service . . . . . . . . . . . 51
i

Appendix C.Notices ................................ 53
Trademarks......................................................................54
Important notes......................................................... 54
Recycling information................................................ 54
Particulate contamination........................................... 55
Telecommunication regulatory statement ................... 55
Electronic emission notices........................................ 55
Federal Communications Commission (FCC)
statement........................................................... 55
Industry Canada Class A emission compliance
statement........................................................... 56
Avis de conformité à la réglementation
d'Industrie Canada.............................................. 56
Australia and New Zealand Class A
statement........................................................... 56
European Union EMC Directive conformance
statement............................................................56
Germany Class A statement................................56
Japanese electromagnetic compatibility
statements..........................................................57
Korea Communications Commission (KCC)
statement............................................................58
Russia Electromagnetic Interference (EMI)
Class A statement...............................................58
People's Republic of China Class A electronic
emission statement.............................................59
Taiwan Class A compliance statement.................59
Taiwan BSMI RoHS declaration...........................60
Index..........................................................61
ii 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide

© Copyright Lenovo 2015, 2020 iii
Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d'installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.

iv 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
Antes de instalar este produto, leia as Informações sobre Segurança.
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
Guidelines for trained service technicians
This section contains information for trained service technicians.
Inspecting for unsafe conditions
Use this information to help you identify potential unsafe conditions in a Lenovo product that you are
working on.
Each Lenovo product, as it was designed and manufactured, has required safety items to protect users
and service technicians from injury. The information in this section addresses only those items. Use good
judgment to identify potential unsafe conditions that might be caused by alterations or attachment of
non- Lenovo features or optional devices that are not addressed in this section. If you identify an unsafe
condition, you must determine how serious the hazard is and whether you must correct the problem before
you work on the product.
Consider the following conditions and the safety hazards that they present:
• Electrical hazards, especially primary power. Primary voltage on the frame can cause serious or fatal
electrical shock.
• Explosive hazards, such as a damaged CRT face or a bulging capacitor.
• Mechanical hazards, such as loose or missing hardware.
To inspect the product for potential unsafe conditions, complete the following steps:
1. Make sure that the power is off and the power cords are disconnected.
2. Make sure that the exterior cover is not damaged, loose, or broken, and observe any sharp edges.
3. Check the power cords:
• Make sure that the third-wire ground connector is in good condition. Use a meter to measure
third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.
• Make sure that the power cords are the correct type.

© Copyright Lenovo 2015, 2020 v
• Make sure that the insulation is not frayed or worn.
4. Remove the cover.
5. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo
alterations.
6. Check inside the system for any obvious unsafe conditions, such as metal filings, contamination, water
or other liquid, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Make sure that the power-supply cover fasteners (screws or rivets) have not been removed or tampered
with.
Guidelines for servicing electrical equipment
Observe these guidelines when you service electrical equipment.
• Check the area for electrical hazards such as moist floors, nongrounded power extension cords, and
missing safety grounds.
• Use only approved tools and test equipment. Some hand tools have handles that are covered with a soft
material that does not provide insulation from live electrical current.
• Regularly inspect and maintain your electrical hand tools for safe operational condition. Do not use
worn or broken tools or testers.
• Do not touch the reflective surface of a dental mirror to a live electrical circuit. The surface is conductive
and can cause personal injury or equipment damage if it touches a live electrical circuit.
• Some rubber floor mats contain small conductive fibers to decrease electrostatic discharge. Do not use
this type of mat to protect yourself from electrical shock.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Locate the emergency power-off (EPO) switch, disconnecting switch, or electrical outlet so that you can
turn off the power quickly in the event of an electrical accident.
• Disconnect all power before you perform a mechanical inspection, work near power supplies, or remove
or install main units.
• Before you work on the equipment, disconnect the power cord. If you cannot disconnect the power
cord, have the customer power-off the wall box that supplies power to the equipment and lock the
wall box in the off position.
• Never assume that power has been disconnected from a circuit. Check it to make sure that it has been
disconnected.
• If you have to work on equipment that has exposed electrical circuits, observe the following precautions:
– Make sure that another person who is familiar with the power-off controls is near you and is available to
turn off the power if necessary.
– When you work with powered-on electrical equipment, use only one hand. Keep the other hand in your
pocket or behind your back to avoid creating a complete circuit that could cause an electrical shock.
– When you use a tester, set the controls correctly and use the approved probe leads and accessories
for that tester.
– Stand on a suitable rubber mat to insulate you from grounds such as metal floor strips and equipment
frames.
• Use extreme care when you measure high voltages.
• Toensure proper grounding of components such as power supplies, pumps, blowers, fans, and motor
generators, do not service these components outside of their normal operating locations.

vi 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
Hazardous voltage, current, or energy levels are present inside any component that has this label
attached. Do not open any cover or barrier that contains this label. There are no serviceable parts
inside these components. If you suspect a problem with one of these parts, contact a service
technician.
DO NOTopenupthechassisoranyotherpartsof any UPSunit. Thiswillvoidtheunitwarranty.
Onlyreplacepartsforwhichaserviceablepartexists,thatisservicinganyUPSunitislimitedto
FRU / CRU replacement parts.
(L001)
When working on or around the system, observe the following precautions: Electrical voltage and
current from power, telephone, and communication cables are hazardous. To avoid a shock hazard:
• If Lenovo supplied a power cord(s), connect power to this unit only with theLenovo-provided
power cord. Do not use the Lenovo-provided power cord for any otherproduct.
• Do not open or service any power supply assembly.
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• The product might be equipped with multiple power cords. Toremove all hazardous voltages,
disconnect all power cords.
• If an electrical accident occurs, use caution, turn off the power, and send another person to get medical
aid.
Safety statements
These statements provide the caution and danger information that is used in this documentation.
Each caution and danger statement in this documentation is labeled with a number. This number is used to
cross reference an English-language caution or danger statement with translated versions of the caution or
danger statement in the Safety Information document.
For example, if a danger statement is labeled D005, translations for that caution statement are in theSafety
Information document under D005.
Be sure to read all caution and danger statements in this documentation before you perform the procedures.
Read any additional safety information that comes with your system or optional device before you install
the device.
L001
DANGER
D005
DANGER

© Copyright Lenovo 2015, 2020 vii
C004
CAUTION:
Lead-acid batteries can present a risk of electrical burn from high, short-circuit current. Avoid battery
contact with metal materials; remove watches, rings, or other metal objects, and use tools with
insulated handles. To avoid possible explosion, do not burn.
Exchange only with the Lenovo-approved part. Recycle or discard the battery as instructed by
local regulations. In the United States, Lenovo has a process for the collection of this battery. For
information, call 1-800-426-4333. Have the Lenovo part number for the battery unit available when
you call.
DO NOT mix old and new batteries in an Uninterruptible Power Supply unit.
DO NOT open up any battery pack retrieved from an Uninterruptible Power Supply unit.
Wear safety goggles for your own protection when replacing batteries of an Uninterruptible Power
Supply unit. (C004)
C009
• Connect all power cords to a properly wired and grounded electrical outlet. Ensure that the
outlet supplies proper voltage and phase rotation according to the system rating plate.
• Connect any equipment that will be attached to this product to properly wired outlets.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached power cords, telecommunications systems, networks, and modems
before you open the device covers, unless instructed otherwise in the installation and
configuration procedures.
• Connect and disconnect cables as described in the following procedures when installing,
moving, or opening covers on this product or attached devices. Todisconnect:
1. Turn off everything (unless instructed otherwise).
2. Remove the power cords from the outlets.
3. Remove the signal cables from the connectors.
4. Remove all cables from the devices.
To connect:
1. Turn off everything (unless instructed otherwise).
2. Attach all cables to the devices.
3. Attach the signal cables to the connectors.
4. Attach the power cords to the outlets.
5. Turn on the devices.
• Sharp edges, corners and joints might be present in and around the system. Use care when
handling equipment to avoid cuts, scrapes and pinching. (D005)

viii 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
Observe the following precautions when working on or around your IT rack system:
• Heavy equipment—personal injury or equipment damage might result if mishandled.
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet.
• To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest
devices in the bottom of the rack cabinet. Always install servers and optional devices starting
from the bottom of the rack cabinet.
CAUTION:
or or The weight of this part or unit is between 18
and 32 kg (39.7 and 70.5 lb). It takes two persons to safely lift this part or unit. (C009)
C011
CAUTION:
or or The weight of this part or unit is more than 55
kg (121.2 lb). It takes specially trained persons, a lifting device, or both to safely lift this part or
unit. (C011)
C022
CAUTION:
This product might be equipped with a hard-wired power cable. Ensure that a licensed electrician
performs the installation per the national electrical code. (C022)
R001
Important: The following general safety information should be used for all rack-mounted devices:
DANGER

© Copyright Lenovo 2015, 2020 ix
CAUTION:
• Do not install a unit in a rack where the internal rack ambient temperatures will exceed the
manufacturer’s recommended ambient temperature for all your rack-mounted devices.
• Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked
or reduced on any side, front, or back of a unit used for air flow through the unit.
• Consideration should be given to the connection of the equipment to the supply circuit so that
overloading of the circuits does not compromise the supply wiring or overcurrent protection. To
provide the correct power connection to a rack, refer to the rating labels located on the equipment
in the rack to determine the total power requirement of the supply circuit.
• (For sliding drawers) Do not pull out or install any drawer or feature if the rack stabilizer brackets are
not attached to the rack. Do not pull out more than one drawer at a time. The rack might become
unstable if you pull out more than one drawer at a time.
• (For fixed drawers) This drawer is a fixed drawer and must not be moved for servicing unless
specified by the manufacturer. Attempting to move the drawer partially or completely out of the
rack might cause the rack to become unstable or cause the drawer to fall out of the rack.
(R001 part 2 of 2)
Output power and ampere ratings
Important: Make sure that the power receptacle is near the equipment and is easily accessible so that the
uninterruptible power supply (UPS) can be disconnected quickly.
To reduce the risk of fire, connect only to a circuit provided with branch circuit overcurrent protection
with an ampere rating in accordance with the National Electrical Code (NEC), ANSI/NFPA 70 or your local
electrical code:
• Rack-mounted devices are not to be used as shelves or work spaces. Do not place objects on
top of rack-mounted devices.
• Each rack cabinet might have more than one power cord. Be sure to disconnect all power cords
in the rack cabinet when directed to disconnect power during servicing.
• Connect all devices installed in a rack cabinet to power devices installed in the same rack
cabinet. Do not plug a power cord from a device installed in one rack cabinet into a power
device installed in a different rack cabinet.
• An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts
of the system or the devices that attach to the system. It is the responsibility of the customer to
ensure that the outlet is correctly wired and grounded to prevent an electrical shock.
(R001 part 1 of 2)

x3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
UPS output power 120 V 208 V 230 V
1500 VA 15 A Not applicable 10 A
2200 VA 20 A Not applicable 10 A
3000 VA 30 A 20 A 16 A
Product safety
• The UPS connection instructions and operations described in the manual must be followed in the
indicated order.
• Important: Toreduce the risk of fire, the unit connects only to a circuit provided with branch circuit
overcurrent protection as described in this manual, in accordance with the National Electric Code,
ANSI/NFPA 70.
The upstream circuit breaker for Normal AC and Bypass AC must be easily accessible. The unit can be
disconnected from AC power source by opening this circuit breaker. This circuit breaker is used for
backfeed protection and must comply with IEC/EN 62040-1 (the creepage and clearance distances shall
meet the basic insulation requirements for pollution degree 2).
• Disconnection and overcurrent protection devices shall be provided by others for permanently connected
AC input (Normal AC and Bypass AC) and AC output circuits.
• Check that the indications on the rating plate correspond to your AC powered system and to the actual
electrical consumption of all the equipment to be connected to the system.
• For PLUGGABLE EQUIPMENT, the socket-outlet shall be installed near the equipment and shall be
easily accessible.
• Never install the system near liquids or in an excessively damp environment.
• Never let a foreign body penetrate inside the system.
• Never block the ventilation grates of the system.
• Never expose the system to direct sunlight or source of heat.
• If the system must be stored prior to installation, storage must be in a dry place.
• The admissible storage temperature range is -15ºC to +50ºC.
• This unit is not designed to conform to ANSI/NFPA 75 and therefore is not for use in ANSI/NFPA
75-certified data centers.
• Although the UPS does not contain anti-backfeed (ABF) relays, some backfeed protection is provided.
For example, if some components are damaged in battery mode, the output voltage may feed back
to the input. In this case, a current transformer (CT) is used to detect the bypass current feedback
voltage. If a current backfeed fault condition is detected, the UPS will terminate the inverter output to
avoid personal injury.

© Copyright Lenovo 2015, 2020
1
Chapter 1. Introduction
Thank you for selecting a Lenovo product to protect your electrical equipment.
Read this manual to take full advantage of the features of your equipment.
Before installing your equipment, read the safety instructions. Then, follow the instructions in this manual
for setting up and using the product.
To discover the entire range of Lenovo products and the options available for the Lenovo UPS device, we
invite you to visit our website or contact your Lenovo representative.
Notices and statements
The caution and danger statements in this document are also in the multilingual Safety Information
document, which is on the Lenovo Web site at https://support.lenovo.com/documents/LNVO-DOCS. Each
statement is numbered for reference to the corresponding statement in the Safety Information document.
Notices and statements in this document
The following notices and statements are used in this document:
• Note: These notices provide important tips, guidance, or advice.
• Important: These notices provide information or advice that might help you avoid inconvenient or
problem situations.
• Attention: These notices indicate possible damage to programs, devices, or data. An attention notice is
placed just before the instruction or situation in which damage might occur.
• Caution: These statements indicate situations that can be potentially hazardous to you. A caution
statement is placed just before the description of a potentially hazardous procedure step or situation.
• Danger: These statements indicate situations that can be potentially lethal or hazardous to you. A
danger statement is placed just before the description of a potentially lethal or hazardous procedure
step or situation.
Environmental protection
Lenovo has implemented an environmental-protection policy. Products are developed according to an
eco-design approach.
Substances
This product does not contain CFCs, HCFCs or asbestos.
Packing
To improve waste treatment and facilitate recycling, separate the various packing components.
• The cardboard we use comprises over 50% of recycled cardboard.
• Sacks and bags are made of polyethylene.

28 3U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
• Packing materials are recyclable and bear the appropriate identification symbol .
Materials Abbreviations
Number in the symbols
Polyethylene terephthalat PET 01
High-density polyethylene HDPE 02
Polyvinyl chloride PVC 03
Low-density polyethylene LDPE 04
Polypropylene PP 05
Polystyrene PS 06
Follow all local regulations for the disposal of packing materials.
Refer to the Lenovo Environmental Notices and User's Guide, provided on the Lenovo Web site at
https://support.lenovo.com/documents/LNVO-DOCS.
End of life
L enovo will pr ocess products at the end of their ser vice life in compliance with local r egulation s. L enovo
works with companies in charge of collecting and eliminating our products at the end of their service life.
Product
The product is made up of recyclable materials. Dismantling and destruction must take place in compliance
with all local regulations concerning waste. At the end of its service life, the product must be transported to a
processing center for electrical and electronic waste.
Battery
The product contains lead-acid batteries that must be processed according to applicable local regulations
concerning batteries.
The battery pack can be removed to comply with regulations and in view of correct disposal.
With the Lenovo UPS device, you can eliminate the effects of power disturbances and guard the integrity
of your equipment. Providing outstanding performance and reliability, the Lenovo UPS device's unique
benefits include:

Chapter 1.Introduction 3
• True online double-conversion technology with high power density, utility frequency independence, and
power generator compatibility.
• Advanced Battery Management (®ABM) technology that uses advanced battery management to increase
battery service life, optimize recharge time, and provide a warning before the end of useful battery life.
• Selectable High Efficiency mode of operation.
• Standard communication options: one RS-232 communication port, one USB communication port, and
relay output contacts.
• UPS Network Management Card with enhanced communication capabilities.
• Extended runtime with up to four Extended Battery Modules (EBMs) per UPS.
• Firmware that is easily upgradable without a service call.
• Remote On/Off control through Remote On/Off (ROO) and Remote Power Off (RPO) ports.

43U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide

© Copyright Lenovo 2015, 2020
5
Chapter 2. Presentation
Standard installations
Machine types and models
Weights
(lb/kg)
Dimensions (inch/mm)
D x W x H
5594-5KX 106 / 48 28.4 x 17.3 x 5.1 / 722 x 440 x 130
5594-6KX
106 / 48 27.0 x 17.3 x 5.1 / 685 x 440 x 130
5594-6BX
150 / 68 25.4 x 17.3 x 5.1 / 645 x 440 x 130
Rack installation
Tower installation
Shipping bracket kit
If you are shipping the UPS and its associated EBMs preinstalled in a rack, you must use the shipping
bracket kit to prevent damage during shipment. The kit is available from Lenovo. Refer to the instructions in
the kit to install the brackets properly. The brackets are not required when the UPS and EBMs are installed in
a pre-positioned rack.

63U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
Rear panels
Figure 1. 5594-5KX
Figure 2. 5594-6KX
RS232 communication port
USB communication port
Dry (relay) contacts communication port
Connector for Remote On/Off (ROO) control
Connector for automatic recognition of an
additional battery module
Connector for remote Power Off (RPO) control
Slot for UPS Network Management Card
Connector for additional battery modules
Primary group: 16A outlets for connection of
critical equipment
Group 1: (4) 10A programmable outlets for
connection of equipment
Group 2: (4) 10A programmable outlets for
connection of equipment
Input/Output terminal blocks
Input power cable with L6-30P plug
RS232 communication port
USB communication port
Dry (relay) contacts communication port
Connector for Remote On/Off (ROO) control
Connector for automatic recognition of an
additional battery module
Connector for remote Power Off (RPO) control
Slot for UPS Network Management Card
Connector for additional battery modules
Primary group: 16A outlets for connection of
critical equipment
Group 1: (4) 10A programmable outlets for
connection of equipment
Group 2: (4) 10A programmable outlets for
connectionofequipment

Chapter 2.Presentation 7
Input/Output terminal blocks
Figure 3. 5594-6BX
Connectors for battery modules (to the UPS or
to the other battery modules)
Connectors for automatic recognition of battery
modules
Accessories
Part number Description
55946BX Extended Battery Module
Control panel
The UPS has a five-button graphical LCD. It provides useful information about the UPS itself, load status,
events, measurements and settings.
The following table shows the indicator status and description:

83U Rack or Tower UPS RT5.0kVA and RT6.0kVA Installation and User's Guide
Indicator Status Description
Green
On The UPS is operating normally on
Online or on High Efficiency mode.
Orange
On The UPS is on Battery mode.
Orange
On The UPS is on Bypass mode.
Red
On The UPS has an active alarm or fault.
See Chapter 8 “Troubleshooting” on
page 39 for additional information.
LCD description
After 5 minutes of inactivity, the LCD displays the screen saver.
The LCD backlight automatically dims after 10 minutes of inactivity. Press any button to restore the screen.
The following table describes the status information provided by the UPS.
Note: If an other indicator appears, see Chapter 8 “Troubleshooting” on page 39 for additional information.