Sola HD S4K2UC, S4K2U700C, S4K2U1000C, S4K2U1500C, S4K2U2000C User Manual

S4K2UC Industrial On-line UPS

120 V, 700 VA–3000 VA User Manual

While every precaution has been taken to ensure accuracy and completeness in this manual, EGS Electrical Group, LLC.
assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or
omissions.

e SolaHD and Emerson logos are registered in the U.S. Patent and Trademark Oce. All other product or service names
are the property of their registered owners.

©2010 EGS Electrical Group, LLC. All rights reserved. Specications are subject to change without notice.

S4K2UC SERIES USER MANUAL | iii

Contents

Important Safety Precautions 6

Save these Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Battery Safety Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Information for the Protection of the Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Glossary of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.0 Product Description 9

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.2 Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3 Appearance & Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3.1 Front Panel & Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.3.2 Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.4 Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.4.1 Surge Protection Device (SPD) & EMI/RFI Filters . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.4.2 Rectier/Power Factor Correction (PFC) Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.4.3 Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.4.4 Battery Charger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.4.5 Dc-to-Dc Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.4.6 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.4.7 Dynamic Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.1 Utility (V ac) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.2 Manual Bypass Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.5.3 Battery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.4 Battery Recharge Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.5.5 Frequency Converter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

iv | Contents

2.0 Installation 15

2.1 Unpacking & Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.2 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3 Preparation for Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.1 Installation Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.3.2 Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.4 Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.4.1 Tower Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.4.2 Rack Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5 Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.5.1 Connecting Input Plug & Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.5.2 Ac Input/Output Hardwire Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.5.3 Connecting Battery Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.6 Connecting Communication Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.6.1 Connecting USB Communication Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.6.2 Installing the Optional IntelliSlot Card & Communication Cables . . . . . . . . . . . . . . . . . . . . . . 25

3.0 Control & Indicators 26

3.1 Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.1.1 On/Alarm Silence/Manual Battery Test Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.1.2 Standby/Manual Bypass Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2.1 Battery Level Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.2.2 Load Level Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.2.3 UPS Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.0 Operation 29

4.1 Startup Checklist for the S4K2UC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.2 Starting the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3 Manual Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.4 Manual Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.5 Shut Down the S4K2UC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.6 Disconnecting Input Power from the S4K2UC . . . . . . . . . . . . . . . . . . . . . . . . . . 30

S4K2UC SERIES USER MANUAL | v

5.0 Communication 31

5.1 IntelliSlot Communication Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.1.1 MultiLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2 USB Port Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2.1 Conguration Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Terminal Block Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.1 Any Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.2 Battery Mode Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3.3 On Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.3.4 Low Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.0 Battery Cabinet 35

7.0 Maintenance 36

7.1 Replacing the Internal Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.1.1 Battery Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.2 Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.4 Checking UPS Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.5 Checking UPS Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8.0 Troubleshooting 39

8.1 UPS Symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.1.1 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

8.1.2 Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

9.0 Specications 42

10.0 Registration & Warranty 45

10.1 Product Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

10.2 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6 | Important Safety Instructions

IMPORTANT SAFETY PRECAUTIONS

!

WARNING

Observe all cautions and warnings in this manual. Failure to do so may result in serious injury or death.

Refer all UPS and battery service to properly trained and qualied service personnel. Do not attempt to service this product
yourself and never work alone.

Opening or removing the cover may expose you to lethal voltages within this unit, even when it is apparently not operating
and the input wiring is disconnected from the electrical source.

SAVE THESE INSTRUCTIONS

is manual contains important safety instructions that must be followed during the installation and maintenance of the UPS
and batteries. Read this manual thoroughly before attempting to install or operate this UPS.

is UPS contains no user-serviceable parts. e O/Bypass push button does not electrically isolate internal parts. Under
no circumstances should you attempt to gain internal access other than to replace the batteries due to risk of electric shock or
burn. Do not continue to use the UPS if the front panel indicators are not in accordance with these operating instructions or
if the UPS performance alters in use. Refer all faults to your local distributor, SolaHD representative or SolaHD Technical
Support.

is UPS has an internal battery, and the output receptacles of the UPS may carry live voltage even if the UPS is not
connected to utility input power.

Before moving or rewiring this UPS, disconnect utility input power and the battery and make sure that the UPS is completely
shut down. Otherwise, the output terminal may carry live voltage, presenting an electric shock hazard.

To ensure human safety and normal UPS operation, the UPS must be properly grounded before use.

When the UPS is connected to an IT power distribution system, a short-circuit protection device must be installed on the
neutral line.

Install and use the S4K2UC in the following environments:

♦ Temperature: 0°C – 40°C (32°F – 104°F); Relative humidity: 0% – 95%, non-condensing

♦ Out of direct sunlight

♦ Away from heat sources

♦ Stable surface, not subject to vibrations or shocks

♦ Away from dust and other particulates

♦ Away from corrosive substances, salts and ammable gases

Keep the air inlet and outlet of this UPS unobstructed. Poor ventilation will increase the internal temperature of the UPS and
can adversely aect the UPS and its batteries.

Keep liquid and foreign objects away from the UPS.

In case of re, use a dry chemical re extinguisher to put out the re. Using a uid re extinguisher may cause electric shock.

is UPS is not intended for use with life support and other designated critical devices. Maximum load must not exceed that
shown on the UPS rating label. is UPS is designed for data processing equipment. If uncertain, consult your local dealer or
SolaHD representative.

S4K2UC SERIES USER MANUAL | 7

is UPS is not for use in a computer room as dened in the standard for the Protection of Electronic Computer/Data
Processing Equipment, ANSI/NFPA 75.

e S4K2U3000-C was investigated under 30 A branch circuit in accordance with the National Electrical Code, ANSI/
NFPA 70, to reduce the risk of re; connect only a circuit provided with 30 A maximum branch overcurrent protection.

Battery Safety Notes

!

CAUTION

Do not dispose of batteries in a re; they may explode. Dispose of used batteries according to local regulations.

Do not open or mutilate the batteries. Released electrolyte is toxic and harmful to skin and eyes. If electrolyte comes into
contact with the skin, wash the aected area immediately and get medical attention.

!

CAUTION

A battery can present a risk of electrical shock and high short circuit current. e following precautions should be observed
when working with batteries:

♦ Remove watches, rings and other metal objects

♦ Use tools with insulated handles

♦ Wear rubber gloves and boots

♦ Wear protective eye ware (safety glasses)

♦ Do not lay tools or metal parts on top of batteries

♦ Disconnect charging source prior to connecting or disconnecting battery terminals

♦ Determine if the battery is inadvertently grounded. If it is inadvertently grounded, remove the source of the ground.

Contact with any part of a grounded battery can result in electrical shock. e likelihood of such shock will be reduced
if grounds are removed during installation and maintenance (applicable to a UPS and a remote battery supply not
having a grounded supply circuit).

Electromagnetic Compatibility

e S4K2UC complies with the limits for a CLASS A DIGITAL DEVICE, PURSUANT TO Part 15 of FCC rules.
Operation is subject to the following two conditions: (1) is device may not cause harmful interference and (2) is device
must accept any interference received, including interference that may cause undesired operation. Operating this device in a
residential area is likely to cause harmful interference that users must correct at their own expense.

e S4K2UC Series complies with the requirements of EMC Directive 2004/108/EC and the published technical standards.
Continued compliance requires installation in accordance with these instructions and use of accessories approved by SolaHD.

Information for the Protection of the Environment

UPS Servicing: e UPS makes use of components dangerous for the environment (electronic cards, electronic components).
e components removed must be taken to specialized collection and disposal centers.

8 | Important Safety Instructions

Glossary of Symbols

Risk of electrical shock

!

-

PbH2SO4

R

Indicates caution followed by important instructions

Ac input

Ac output

i

+

Requests the user to consult the manual

Indicates the unit contains a valve-regulated lead acid battery

Recycle

Dc voltage

Equipment grounding conductor

Bonded to ground

Ac voltage

ON/Alarm Silence/Battery Test

OFF/Bypass

WEEE

S4K2UC SERIES USER MANUAL | 9

1.0 Product Description

e SolaHD S4K2UC Series is a compact, on-line uninterruptible power system (UPS) that continuously conditions and
regulates its output voltage. It is designed to supply microcomputers and other sensitive equipment with clean sine wave
input power.

Upon generation, ac power is clean and stable. However, during transmission and distribution it is subject to voltage sags,
spikes and complete failure that may interrupt computer operations, cause data loss and damage equipment. e S4K2UC
protects equipment from these disturbances. e S4K2UC continuously charges its batteries from utility power, enabling it to
supply power to connected loads even when utility power fails.

is sections describes the UPS, its features, models, appearance and components, operating principles and operating mode.

1.1 Features

♦ Intelligent battery management to extend the battery life

♦ Operation and display panel with LED for monitoring load percentage and battery capacity independently

♦ Flexible network management with MultiLink™ software

♦ Fan fault self-inspection and automated diagnostic function

♦ Intelligent fan operation, automatically changing rotation speed depending on system requirements to decrease power

consumption and noise

♦ Input circuit breaker to ease recovery from overloads

♦ Safety approval from UL and cUL

♦ Communication options: USB port, IntelliSlot® port and terminal block communication

♦ Dry contacts for remote monitoring

♦ Input power factor greater than 0.99

♦ Output voltage selection function using the conguration software

1.2 Available Models

Available models of the UPS are shown in Table 1:

Table 1: UPS Models & Power Ratings

Model Nominal Power Rating

S4K2U700C 700 VA/630 W

S4K2U1000C 1000 VA/900 W

S4K2U1500C 1500 VA/1350 W

S4K2U2000C 2000 VA/1800 W

S4K2U3000C 3000 VA/2700 W

10 | 1.0 Product Description

1.3 Appearance & Components

1.3.1 Front Panel & Controls

e SolaHD S4K2UC rack/tower models, in various power ratings, have the same general appearance, controls and features
(see Figure 1). e various rack/tower models dier largely in the type of receptacles each has.

Ventilation Slots

Figure 1: S4K2UC rack/tower models—front view

1.3.2 Rear Panel Features

e rear panel of the S4K2UC has these features (see Figure 2):

♦ USB port

♦ Cooling fan

♦ Power output receptacles

♦ Input circuit breaker

♦ IntelliSlot port

♦ Communication terminal block

♦ Input power cable

Operation and Display Panel

S4K2UC SERIES USER MANUAL | 11

IntelliSlot

Port

IntelliSlot

Port

700 VA, 1000 VA, 1500 VA Models

USB Port

Terminal Block
Communication

Cooling
Fan

Input Circuit
Breaker

External

Battery

Connector

2000 VA Model

USB Port

Input Circuit
Breaker

Input Power Plug
and Cable 5-15P

Output
Receptacles,
5-15R

Input Power Plug
and Cable, 5-20P

Output
Receptacles,
5-15/20R

Terminal Block
Communication

Cooling
Fan

External

Battery

Connector

3000 VA Model

Cooling
Fan

Input Circuit
Breaker

External

Battery

Connector

USB Port

IntelliSlot

Port

Terminal Block
Communication

Figure 2: S4K2UC 120 V rack/tower models—rear panel components

Input Power Plug
and Cable, L5-30P

Output
Circuit
Breakers

Output Receptacles,
5-15/20R

Output Receptacle,
L5-30R

12 | 1.0 Product Description

1.4 Major Components

e operating principle of the UPS is illustrated in Figure 3.

Output

L1

L2/N

GG

L1

L2/N

Input

SPD & EMI/

RFI Filters

Battery

Charger

Rectifier /

PFC

Dynamic

Bypass

Inverter

DC-to-DC

Converter

Battery

Figure 3: Operating principle diagram

e UPS is composed of utility input, SPD and EMI/RFI lters, rectier/PFC, inverter, battery charger, dc-to-dc converter,
battery, dynamic bypass and UPS output.

1.4.1 Surge Protection Device (SPD) & EMI/RFI Filters

e S4K2UC has surge protection and lters that protect the connected load from power surges, electromagnetic interference
(EMI) and radio frequency interference (RFI). ese features can minimize any surges or interference present in the utility
power. e lters also prevent surges or interference generated by the UPS from adversely aecting devices connected on the
same branch as the UPS.

1.4.2 Rectier/Power Factor Correction (PFC) Circuit

In normal operation, the S4K2UC’s rectier/power factor correction (PFC) circuit converts utility power to regulated
dc power for use by the inverter, while ensuring that the wave shape of the input current used by the UPS is near ideal.
Extracting this sine wave input current achieves two objectives:

♦ Ecient power use by the UPS

♦ Reduced reected harmonics

is results in cleaner power being available to other devices in the building not protected by the S4K2UC.

S4K2UC SERIES USER MANUAL | 13

1.4.3 Inverter

In normal operation, the S4K2UC’s inverter utilizes the dc output of the PFC to produce precise, regulated sine wave ac
power. When utility power fails, the inverter receives dc power from the dc-to-dc converter. In either operation mode, the
UPS inverter is online, continuously generating clean, precise, regulated ac output power.

1.4.4 Battery Charger

e battery charger utilizes energy from the utility power and precisely regulates it to continuously oat charge the batteries.
e batteries are being charged whenever the S4K2UC is plugged in, even when the UPS is not turned on.

1.4.5 Dc-to-Dc Converter

e dc-to-dc converter raises the dc voltage from the battery to the optimum operating voltage for the inverter. is allows
the inverter to operate continuously at its optimum eciency and voltage, thus increasing reliability.

1.4.6 Battery

e S4K2UC uses valve-regulated, non-spillable, lead acid batteries. To maintain battery design life, operate the S4K2UC in
an ambient temperature of 0°C to 25°C (32°F to 77°F).

NOTE: Optional external battery cabinets are available to extend battery run times.

1.4.7 Dynamic Bypass

e S4K2UC provides an alternate path for utility power to the connected loads in the unlikely event of a UPS malfunc­tion. Should the S4K2UC have an overload, overtemperature or UPS failure condition, the UPS automatically transfers the
connected loads to bypass.

NOTE: e bypass power path does not protect the connected loads from disturbances on the utility.

1.5 Operating Modes

e UPS operating modes include: Utility (V ac) Mode, Bypass Mode, Battery Mode, Battery Recharge Mode and
Frequency Converter Mode. For descriptions of indicators and control buttons, refer to “3.0 Controls & Indicators”.

1.5.1 Utility (V ac) Mode

During Utility (V ac) Mode, utility power provides energy to the S4K2UC. e lters, PFC circuit and the inverter process
this power to provide computer-grade power to connected loads. Meanwhile, the UPS maintains the batteries in a fully
charged state.

1.5.2 Manual Bypass Mode

Manual Bypass Mode occurs when the Standby/Manual Bypass button is pressed once, while the S4K2UC is in Utility (V ac)
Mode. Bypass operation is indicated by an audible alarm and illuminated amber bypass indicator. (If other indicators are
illuminated, refer to “8.0 Troubleshooting”). During Manual Bypass Mode, utility power bypasses the inverter and provides
energy to the connected load.

!

CAUTION

Turning o the UPS in Manual Bypass Mode will result in loss of output power and dropped loads.

14 | 1.0 Product Description

1.5.3 Battery Mode

e S4K2UC enters Battery Mode when utility power fails or is outside acceptable values. e battery system supplies power
through the dc-to-dc converter to the inverter to generate clean ac power for the connected loads.

When the S4K2UC enters Battery Mode, the UPS sounds a half-second beep at 10-second intervals.

When approximately 2 minutes of run time remains, the beeps sound every 5 seconds to warn that the battery is getting low
(this low battery warning is user-congurable).

In Battery Mode, the Ac Input indicator goes o and the Battery Level indicators illuminate. Each Battery Level indicator
represents a 20% capacity level. As capacity decreases, fewer indicators remain illuminated. Refer to “8.0 Troubleshooting”.

For approximate battery run times, refer to “9.0 Specications—Table 13”. e times in Table 13 are approximate. ey are
based on resistive loads and an ambient temperature of 25°C (77°F). To increase this time, turn o non-essential loads (such
as idle computers and monitors) or add optional external battery cabinets.

!

CAUTION

Turning o the S4K2UC while in Battery Mode will result in loss of output power. If the UPS is turned o manually, it
must be manually restarted after utility power returns. If the UPS is turned o by a communication signal or because the
batteries are depleted, it will operate as selected in the conguration program for Auto-Restart (refer to “5.2.1 Conguration
Program”).

1.5.4 Battery Recharge Mode

Once utility power is applied to the S4K2UC, the battery charger begins charging the batteries.

1.5.5 Frequency Converter Mode

All models of the S4K2UC are capable of frequency conversion. Frequency Conversion Mode can be selected using the
conguration program. Allowable frequency operating modes include:

♦ Auto Sensing — 50 Hz or 60 Hz — Bypass Enabled

♦ Auto Sensing — 50 Hz or 60 Hz — Bypass Disabled

♦ Frequency Converter — 50 Hz — Bypass Disabled

♦ Frequency Converter — 60 Hz — Bypass Disabled

NOTE: e default for all models of the S4K2UC is “Auto Sensing — 50 Hz or 60 Hz — Bypass Enabled.”

!

CAUTION

Do not touch the ac input receptacle when the UPS is operating. Ac input voltages may still be present, even when the ac
input indicator is o.

S4K2UC SERIES USER MANUAL | 15

2.0 Installation

2.1 Unpacking & Inspection

Unpack the UPS and conduct the following checks:

♦ Inspect the UPS for shipping damage. If any shipping damage is found, report it to the carrier and your local dealer or

SolaHD representative immediately.

♦ Check the accessories against the delivery list. If there are any discrepancies, contact your local dealer or SolaHD repre-

sentative immediately.

2.2 What’s Included

♦ Compact disk containing: MultiLink, conguration program and user manual

♦ One, 6-1/2 ft. (2 m) long USB cable

♦ Mounting hardware, including screws and handles

♦ Two plastic tower stand sets (four pieces total)

♦ Warnings, Safety Instructions booklet and WEEE recycling sheet (ISO 14001 compliance)

NOTE: e S4K2UC external battery cabinet shipping package includes one battery cabinet, two spacers for tower congu­ration and one dc power cable.

2.3 Preparation for Installation

2.3.1 Installation Environment

♦ Install the UPS indoors in a controlled environment, where it cannot be accidentally turned o. e installation environ-

ment should meet the specications listed in “9.0 Specications”.

♦ Place the UPS in an area of unrestricted airow around the unit, away from water, ammable liquids, gases, corrosives,

and conductive contaminants. Avoid direct sunlight.

NOTE: Operating the UPS in temperatures above 25°C (77°F) reduces battery life.

2.3.2 Installation Clearances

Maintain at least 4 inches (100 mm) clearance in the front and rear of the UPS. Do not obstruct the air inlets on the front
panel and rear panel of the UPS; blocking the air inlets reduces ventilation and heat dissipation, shortening the service life of
the unit.

16 | 2.0 Installation

2.4 Mechanical Installation

e S4K2UC may be installed as a tower or in a rack, depending on space and use considerations. e S4K2UC may be used
alone, as a single UPS, or with up to four battery cabinets.

NOTE: When installing the UPS or making input/output connections, comply with all relevant safety codes and standards.

2.4.1 Tower Installation

To install the S4K2UC as a tower:

1. Take out support bases from the accessories (see Figure 4).

Connectors

Support Bases

Figure 4: Support bases

2. If optional external battery cabinets will be connected to the UPS, take out the spacers shipped with the battery cabinet.

3. Connect the spacers and the support bases as shown in Figure 4. Each S4K2UC needs two assembled support bases, one

in the front and one in the rear.

4. Adjust the direction of the operation and display panel and logo on the S4K2UC.

a. Remove the front metal bezel cover as shown in Figure 5.

Spacers

Screws (2 pcs)

Front Metal Bezel Cover

Figure 5: Remove the front metal bezel cover

S4K2UC SERIES USER MANUAL | 17

b. Using the nger grips on the display panel, gently pull and rotate 90 degrees clockwise and snap it back into position

as shown in Figure 6.

Operation and Display Panel

Rotated Clockwise 90 Degrees

Figure 6: Rotate the operation and display panel

c. Replace the front metal bezel cover on the S4K2UC. At this point, the UPS operation and display panel and logo

have been rotated 90 degrees clockwise, which provides upright viewing for users.

5. Place the S4K2UC and any battery cabinets on the support bases. Each S4K2UC needs two support assemblies as shown

in Figure 7.

S4K2UC UPS

Operation and

Display Panel

Rotated for

Tower Operation

S4K2UC UPS and

External Battery Cabinet

Figure 7: Tower installation

Support Bases

Support Bases

18 | 2.0 Installation

2.4.2 Rack Installation

NOTES:

♦ When the S4K2UC is installed in a rack, it must be supported by a shelf, xed rails or slide rails on each side. e

factory-supplied rack mount handles cannot support the weight of the UPS. ey are used to move the UPS into and
out of the rack and to attach the UPS to the rack.

♦ Mounting hardware and slide rails are sold separately. Contact your local SolaHD representative for these options.

To install a S4K2UC in a rack:

1. Unpack the two slide rail assemblies and mounting hardware from the rack mounting kit (P/N: SRS1832). Slide rail

assembly includes inner member and front and rear members. ey are interchangeable between left-hand or right-hand.
Mounting hardware includes M4 screws and M5 screws.

2. Remove inner member of each slide rail assembly by extending it to its outermost position, depressing the retaining latch

and then pulling inner member from bracket assembly (see Figure 8).

t

u

o

l

l

u

P

Bracket assembly

Retaining latch

Inner member

Figure 8: Pulling inner member from each bracket assembly

3. Determine the S4K2UC’s mounting position inside the racks vertical rails.

!

CAUTION

Install the S4K2UC as low as possible in the rack to reduce the risk of tipping.

4. Attach the rear member of each slide rail assembly to the rack’s rails with two factory-supplied M5 screws (see Figure 9).

Vertical pole

M5 screw (4 pcs)

Rear member

Front member

Figure 9: Installing rear member of each slide rail assembly

S4K2UC SERIES USER MANUAL | 19

5. Extend the slide rail assembly by sliding the front member forward until it touches the rack’s front vertical rails (adjust-

able length: 18–32 inches/457–813 mm). Use two M5 screws to x each front member onto the front vertical rails
through the installation holes. Make sure that slide rail assemblies are at the same mounting height on all four rack rails,
as shown in Figure 10.

Front
Vertical
Pole

Front

Member
M5 Screw
(4 pcs)

Slide

Rear
Member

Figure 10: Installing front member of each slide rail assembly

6. Fasten rear member and front member together using four M4 screws and four M4 nuts (M4 nuts have been installed on

the rear member before delivery) per slide rail assembly as shown in Figure 11.

Rear Member
M4 Screw (8 pcs)

Front member

M4 Nut (8 pcs)

Figure 11: Fastening rear member and front member together

20 | 2.0 Installation

7. Fasten inner members (pulled from the slide rail assemblies in Step 2) to both sides of the UPS with eight M4 screws

provided in this kit. Make sure that the retaining latch is near the rear of the UPS as shown in Figure 12.

UPS

Inner member
Retaining latch

M4 screw (8 pcs)

Figure 12: Installing inner members

8. Use M4 screws to install ears on both sides of the UPS as shown in Figure 13.

UPS

Rack mount handles (2 pcs)

M4 screw (8 pcs)

Figure 13: Installing rack mount handles

9. Insert the UPS, with inner members attached, into the slide rail assemblies by inserting the top and bottom edges of the

inner members into the top and bottom curved tracks of the front members. Slide the UPS into the rack as shown in
Figure 14.

NOTE: e ends of the inner members are tapered to allow the rear of the UPS to be angled upward before insertion, if

space allows.

NOTE: e UPS should move smoothly into the slide rail assemblies. If not, recheck the alignment of the front and rear

members from Steps 4 through 6.

S4K2UC SERIES USER MANUAL | 21

Insert

Front Member

Inner Member

Figure 14: Insert the UPS

10. rough the rack mount handles, use M5 screws provided in this kit to secure the front of the UPS to the rack vertical

rails to prevent the UPS from sliding out of position.

11. If optional external battery cabinets are connected to the UPS, they can be placed all on one side of the UPS or stacked

beneath the UPS. e installation procedures are the same as those of the UPS.

NOTE: Up to four external battery cabinets can be connected to the S4K2UC. Each cabinet will increase the battery recharge time.

2.5 Cable Connection

e S4K2UC rear panel has an input cable and plug, output receptacles and output cable(s). (Output cables are on S4K2U3000
models only). Refer to “1.3.2 Rear Panel Features” for details. e battery cables are supplied with the battery cabinet.

2.5.1 Connecting Input Plug & Loads

NOTES:

♦ Ensure that all the loads are turned o.

♦ Prepare an input power supply that is properly protected by a circuit breaker in accordance with national and local elec-

trical codes. e wall receptacle must be grounded.

♦ e plug on the power supply cord is intended to serve as the disconnection device. e socket-outlet must be installed

near the equipment and must be easily accessible.

♦ SolaHD recommends installing an upstream circuit breaker of the same series as the S4K2UC’s input circuit breaker.

e upstream breaker should be the same or higher capacity than the UPS input circuit breaker.

e specication of input circuit breaker on the rear panel of UPS is shown in Table 2.

Table 2: Input Circuit Breaker Specication

Model Rated Circuit Breaker

S4K2U700C 10 A

S4K2U1000C 15 A

S4K2U1500C 15 A

S4K2U2000C 20 A

S4K2U3000C 30 A

22 | 2.0 Installation

1. Plug all loads into the output receptacles on the rear panel of the S4K2UC. Distribute loads evenly across all receptacles

to prevent overloading individual receptacles.

2. Insert the input plug of the S4K2UC into the input power connection.

2.5.2 Ac Input/Output Hardwire Installation

!

CAUTION

is installation must be performed by electrical personnel and wired in accordance with local and national electrical codes.

Installation considerations:

On start-up, the UPS will take a half cycle inrush current of up to 3 times the rated current. is must be taken into account
when selecting the overload protection device at the input utility supply distribution point. To avoid random tripping on
startup, we recommend that input utility supply be protected with a MCB (Mechanical Circuit Breaker) capable of with­standing this initial inrush.

e utility input supply cable must be connected to the UPS via a wall mounted double pole circuit breaker. e UPS output
port must also be protected with a double pole circuit breaker connected to the load, rated to carry the input current, and
be capable of breaking the maximum prospective short circuit current of this branch circuit. e breakers are to be mounted
within six feet of the UPS and be readily accessible to the operator. Please refer to Table 3 for breaker specication.

High quality ground (earth) connections are required for the equipment ground conductors (protective earth) and grounding
electrode conductor (power system earth connection) to reduce electrical noise and provide for safe operation of the UPS
and connected loads. Conduit used alone without a grounding conductor wire is not an acceptable connection. Size ground
(protective earth) conductors equal to circuit conductors. For wiring information, please refer to Table 3.

Table 3: Overcurrent Protection & Wiring Specications

Model VA Input Current Rating

700 VA 5.9 A 15 A 16 AWG 8 AWG 20 in.-lb.

1000 VA 8.3 A 15 A 16 AWG 8 AWG 20 in.-lb.

1500 VA 12.0 A 15 A 16 AWG 8 AWG 20 in.-lb.

2000 VA 16.0 A 20 A 14 AWG 8 AWG 20 in.-lb.

3000 VA 24.0 A 30 A 12 AWG 8 AWG 20 in.-lb.

Recommended

External Overcurrent

Protection

Recommended Wire

(105°C Copper Wire)

Maximum Wire

Accepted by

Terminal Block

Terminal Tightening

Torque

NOTES:

♦ Make sure the UPS is turned o and unplugged before removing the original cord/receptacle board. To install the cable

box, the original cord/receptacle board must be removed and disconnected from the terminal block.

♦ e cable sizes and distribution methods used during installation are subject to local/national electrical codes of practice,

and therefore are not detailed here. Table 3 details the standard current ratings. e UPS rating plate gives details of the
current ratings for alternative output voltages.

♦ When choosing the input and output cables, users should strictly adhere to Table 3 for cable dimensions. Failure to

observe Table 3 could result in personnel injury or damage to the UPS.

♦ When installing the cable box, make sure that the input and output cables do not interfere with the position the UPS or

external battery connectors.

♦ User needs to supply hardware for securing input and output cables.

♦ Section 2.5.3 describes the connection of optional external batteries. Dc battery connections may not be hardwired.

Safety/EMC certication requires that the supplied battery cable be used.

S4K2UC SERIES USER MANUAL | 23

Installation procedures are as follows:

1. Remove the receptacle board on the UPS rear panel, as shown in Figure 15. Retain the six rear panel mounting screws for

securing the box assembly to the UPS.

UPS

Receptacle board

Screw (6 pcs)

Figure 15: Removing the receptacle board

2. Take out the box assembly from the accessories and split it into cover, box, Base 1 and Base 2, as shown in Figure 16. Set

the six screws aside for reassembly of the hardwire box.

Screw (6 pcs)

Cover

Box

Base 2Base 1

Figure 16: Splitting the box assembly

3. Use two rear panel mounting screws to install Base 1 to the UPS rear panel, as shown in Figure 17.

Figure 17: Installing base 1

Base 1Screw (2 pcs)

24 | 2.0 Installation

4. Connect the input power source line, neutral and ground cables to the input line (L), neutral (N) and ground (PE) termi-

nals on the UPS I/O terminal block and tighten the xing screws (see Figures 18 and 19).

5. Connect the UPS output line, neutral and ground cables to the output line (L), neutral (N) and ground (PE) terminals on

the UPS I/O terminal block and tighten the xing screws (see Figures 18 and 19).

Output cable

Input cable

Figure 18: I/O Cable placement

Figure 19: UPS I/O terminal block

6. Use two rear panel mounting screws to install Base 2 to the UPS rear panel, as shown in Figure 20.

Base 2

Figure 20: Installing Base 2

7. Insert the input and output cables/hardware into the slots on Base 2 and Base 1. Hand tighten the securing nuts to Base 2

and Base 1.

8. Set the box onto the Base 1 and Base 2 cable/hardware assemblies. Use the four box assembly screws to fasten the box to

the bases (see Figure 21).

9. Using the hardware securing nuts, tighten the input and output cable assemblies to the box and bases (see Figure 21).

Figure 21: Installing the box

Screw (2 pcs)

Base 1

Box
Base 2

Screw (4 pcs)

S4K2UC SERIES USER MANUAL | 25

10. Use two box assembly screws to install the cover onto the box, as shown in Figure 22.

Screw (2 pcs) Cover

Box

Figure 22: Installing the cover

11. Connect the other end of the UPS output line, neutral and ground cables to the load.

2.5.3 Connecting Battery Cables

1. Switch o the input breaker of the battery cabinet.

2. Take out the battery cable included with the battery cabinet.

3. Connect one end of the battery cable to the external battery connector on the rear panel of the UPS and connect the

other end to any battery port on the rear panel of the battery cabinet.

4. Switch on the battery breaker on the rear of the external battery cabinet.

5. Use the Conguration Program included with the UPS to specify the number of external battery cabinets connected to

the S4K2UC. See Table 14 for approximate battery run times.

2.6 Connecting Communication Cables

Communication cable connection includes: USB and option card cables.

2.6.1 Connecting USB Communication Cables

1. Take the USB communication cables out of the accessories box.

2. Insert one end of the USB communication cable into the USB port on the rear panel of the S4K2UC (see Figure 2).

3. Insert the other end of the USB communication cable into the USB port of the computer.

2.6.2 Installing the Optional IntelliSlot Card & Communication Cables

1. Remove the protective cover of the IntelliSlot port on the S4K2UC and set it aside.

2. Insert the IntelliSlot card into the IntelliSlot port and secure it with screws.

3. To connect any cable associated with a IntelliSlot card, refer to the user manual provided with the card.

To congure and use the IntelliSlot communication card, refer to the card’s user manual.

26 | 3.0 Control & Indicators

3.0 Control & Indicators

e operation and display panel, shown in Figure 23, is on the front panel of the S4K2UC.

Battery Level indicators

Load Level indicators

Fault indicator

Ac Input indicator

Bypass indicator

Inverter indicator

On/Alarm Silence/Manual
Battery Test button

Standby/Manual Bypass button

Battery indicator

Figure 23: Operation and display panel

3.1 Control Buttons

e operation and display panel has two control buttons: On/Alarm Silence/Manual Battery Test and Standby/Manual
Bypass.

3.1.1 On/Alarm Silence/Manual Battery Test Button

e On/Alarm Silence/Manual Battery Test button controls output power to connected load(s) and has three functions (see
Table 4).

Table 4: Functions of the On/Alarm Silence/Manual Battery Test Button

Function Operation Description

On Press the button once for 3 seconds To start the UPS

Alarm Silence

Manual Battery Test

1

The low battery and bypass reminder alarms cannot be silenced.

2

After the alarm is silenced, the UPS will reactivate the alarm system to alert of additional problems.

1

Press the button for at least half a second To silence the alarms

Press the button for at least half a second while operating in Utility (V ac)
Mode with no alarms present

To initiate a manual battery test

2

S4K2UC SERIES USER MANUAL | 27

3.1.2 Standby/Manual Bypass Button

e Standby/Manual Bypass button controls output power to connected load(s) and has two functions (see Table 5).

Table 5: Functions of Standby/Manual Bypass Button

Function Operation Description

Manual Bypass Press the button once

Standby

3

If the bypass is not available due to voltage or frequency, pressing this button once will be ignored.

4

Perform all necessary shutdown procedures on connected loads before turning o the UPS.

Press the button twice within 4 seconds while the UPS is in
Manual Bypass or Battery Mode

3

4

To initiate a manual transfer of the connected loads to the
internal bypass, if available

To shutdown the UPS and shut o all power to the
connected loads

3.2 Indicators

e operation and display panel has seven indicators (see Figure 23). e indicators can be divided into two groups according
to the applications: level indicators and UPS status indicators.

3.2.1 Battery Level Indicators

e Battery Level indicator is composed of ve sets of LED bars that illuminate and ash to indicate the battery capacity
level. e S4K2UC battery capacity level is shown in 20% increments (± 5%). e battery level indicators will illuminate as
shown in Figure 24.

Charging

Discharging

0 - 20%

Flash OFF OFF OFF OFF

ON OFF OFF OFF OFF

21 - 40%

ON Flash OFF OFF OFF

ON ON OFF OFF OFF

41 - 60%

ONON Flash OFF OFF

ONON ON OFF OFF

61 - 80%

OFFON ON ON Flash

OFFON ON ON ON

81 - 100%

FlashONONONON

ONONONONON

Fully

Charged

ON ON ON ON ON

ON ON ON ON ON

Figure 24: Battery Level indicators

28 | 3.0 Control & Indicators

3.2.2 Load Level Indicators

e Load Level indicator is composed of ve LED bars that illuminate to indicate the relative load on the UPS output in
25% increments (± 5%). e load level indicator will illuminate as shown in Figure 25.

0 - 25%

ON OFF OFF OFF OFF

26 - 50%

ON ON

51 - 75%

ON ON ON OFF OFF

76 - 100%

ON ON ON ON

Overload

ON ON ON ON ON

OFF OFF OFF

OFF

Figure 25: Load Level indicators

3.2.3 UPS Status Indicators

UPS status is indicated by ve symbols: Fault indicator, Ac Input indicator, Battery indicator, Inverter indicator and Bypass
indicator. Table 6 shows the symbols and their meanings.

Table 6: UPS Status Indicators

UPS Status Indicator Icon Color Description

Fault indicator

Ac Input indicator Green

Battery indicator Amber On when the battery is supplying power; o when the battery is not supplying power

Inverter indicator Green

Bypass indicator Amber

Red On if the UPS has detected a fault; o if there is no fault

On when the utility input power is normal; o during utility failure; ashing when
utility power is outside the specications

On when the inverter is supplying power; o when the inverter is not supplying
power; and ashing when utility power is outside the specications

On when the bypass is supplying power; o when the inverter is supplying power;
and ashing when utility power is outside the specications

S4K2UC SERIES USER MANUAL | 29

4.0 Operation

is section describes checks to be made before starting the UPS, how to start the UPS, manual battery test, manual bypass,
shutting down the UPS and disconnecting the utility power from the UPS.

NOTE: e S4K2UC’s battery is fully charged before delivery, but some charge will be lost during storage and shipping. To
ensure that the battery has adequate reserve power to protect the connected load, charge the battery for 3 hours before putting
the UPS into service.

4.1 Startup Checklist for the S4K2UC

Before starting the UPS, perform these checks:

1. Check that the input plugs and loads are connected properly and reliably.

2. Check that all of the battery cables are connected properly.

3. Check that the communication cables are connected properly.

4.2 Starting the UPS

1. Turn on the input circuit breaker—see Figure 2 for its location.

2. Turn on the UPS by pressing the On/Alarm Silence/Manual Battery Test button for 3 seconds.

3. Turn on the connected loads.

4. Check the status indicators to determine whether the S4K2UC is operating normally.

5. Check the load level indicators to verify that the connected load does not exceed the UPS’s rated capacity.

e UPS is now providing conditioned power to the load.

4.3 Manual Battery Test

To initiate a manual battery test, press the On/Alarm Silence/Manual Battery Test button for at least half a second while
operating from utility power with no alarm conditions present.

♦ If only the rst two of the ve LED segments illuminate, allow the UPS to recharge the batteries for 24 hours.

♦ Retest the batteries after 24 hours of charging the batteries.

♦ After the batteries have been retested, if only two of the ve battery LEDs illuminate, contact your local SolaHD repre-

sentative or SolaHD Technical Support.

♦ If none of the ve battery LEDs illuminate during a manual battery test, check the battery connection and allow the

UPS to recharge the batteries for 1 hour and initiate a manual battery test again.

♦ If none of the ve battery LEDs illuminate during the manual battery test a second time, replace the batteries, and

contact your local SolaHD representative or SolaHD Technical Support.

30 | 4.0 Operation

4.4 Manual Bypass

Press the Standby/Manual Bypass button once while the UPS is in Utility (V ac) Mode; the UPS will transfer the connected
loads to the internal bypass. If the internal bypass is not available due to utility power problems, pressing this button once will
be ignored. Bypass operation is indicated by an audible alarm and illuminated amber Bypass indicator. If other indicators are
illuminated, refer to “8.0 Troubleshooting”.

4.5 Shut Down the S4K2UC

1. Transfer the UPS to manual bypass by pressing the Standby/Manual Bypass button once. If manual bypass is not avail-

able, disregard the rst step.

2. Press the Standby/Manual Bypass button twice within 4 seconds to shut down the UPS.

Power to the connected loads is now o.

4.6 Disconnecting Input Power from the S4K2UC

1. Once the UPS has been shut down as detailed in “4.5 Shut Down the S4K2UC”, disconnect the input cable plug.

2. Wait 30 seconds and verify that all indicators have turned o and the fan has stopped; this indicates that the power-o is

complete.

3. If the UPS has an external battery cabinet, turn the external battery cabinet breaker switch to the o position.

After powering o the UPS, the UPS ceases output and the load is powered o.

S4K2UC SERIES USER MANUAL | 31

5.0 Communication

is section describes UPS communication over the three types of communication connections on the rear of the S4K2UC:

♦ IntelliSlot port

♦ USB port (standard B-type)

♦ Terminal block communication

!

CAUTION

To maintain safety (SELV ) barriers and for electromagnetic compatibility, signal cables should be segregated and run separately
from all other power cables.

5.1 IntelliSlot Communication Cards

e IntelliSlot port accepts two optional cards:

♦ IntelliSlot SNMP card (Catalog number: SNMPWEB CARD)

♦ IntelliSlot Relay card (Catalog number: RELAYCARD INT)

e IntelliSlot SNMP card (Catalog number: SNMPWEB CARD) provides SNMP monitoring and control of the UPS
across the network.

e IntelliSlot Relay card (Catalog number: RELAYCARD INT) provides dry contact relay outputs for custom-wired appli­cations and delivers support for built-in shutdown for AS/400 systems.

Follow instructions provided with the IntelliSlot card to congure MultiLink, the UPS or any additional ancillary product for
the S4K2UC. ese instructions are also available at: www.solahd.com/multilink.

5.1.1 MultiLink

MultiLink monitors the UPS continuously and can shut down your computer or server in the event of an extended power
failure. MultiLink can be congured to shut down the UPS as well.

MultiLink can also be congured for use without the USB cable when the IntelliSlot SNMP Card (Catalog number:
SNMPWEB CARD) is installed in the UPS. An optional MultiLink license kit permits shutting down the UPS over a
network. For more information about the MultiLink license kits, visit our Web site at: www.solahd.com or contact SolaHD
at: [phone]/[phone].

5.2 USB Port Communication

e standard B-type USB port is used to connect the UPS and network server or other computer system using MultiLink.
e Conguration program can be completed through the communication port.

32 | 5.0 Communication

5.2.1 Conguration Program

Accessing the Conguration Program via USB is a new feature of the S4K2UC. For most users, the factory default settings
will be adequate. is section illustrates the features available for modication, as well as the factory default settings.

e USB conguration program allows these features of the S4K2UC to be changed:

♦ Enable/Disable Auto-Restart

♦ Select frequency converter operation with a xed output frequency of 50 Hz or 60 Hz, bypass disabled

♦ Set the Low Battery Warning alarm time from 2 to 30 minutes

♦ Enable/Disable the Auto-Battery test

♦ Enable/Disable Auto-Restart after removing Remote Shutdown

♦ Set the wiring mode of Remote Shutdown

♦ Set the Auto-Enable output

♦ Set the Auto-Battery test to 7, 14, 21 or 28 days

♦ Select the number of external battery cabinets connected to the UPS to adjust the remaining run time calculated by

software products

♦ Select one of multiple output voltages to match various voltages (see Table 7)

Table 7: Output Voltage Option, All Models

Factory Default, V ac Output Voltage Option, V ac

120 110, 115, 120, 127

!

WARNING

e output voltage settings cannot be changed while the UPS is on and powering connected loads.

NOTES:

For all 120 V models, when the output voltage is programmed for 110 V ac, the UPS will be automatically derated as follows
(refer to “9.0 Specications” for VA and Watt ratings):

♦ 700 VA–1000 VA: Derated to 95% of both the VA and Watt ratings

♦ 1500 VA–3000 VA: Derated to 90% of both the VA and Watt ratings

NOTES:

♦ e conguration program is compatible with UPS models S4K2UXXXXC, as in S4K2U3000C. It is not compatible

with earlier versions of the S4K2U UPS.

♦ A computer running Windows 2000®, XP® or Vista® is required to set up and run the conguration program.

5.3 Terminal Block Communication

e terminal block includes eight pins, as shown in Figure 26.

S4K2UC SERIES USER MANUAL | 33

1
2

3
4

5
6

7

Any Mode
Shut Down

Battery Mode
Shut Down

Battery Mode

Low Battery

8

Figure 26: Terminal block layout

5.3.1 Any Mode Shutdown

e purpose of Any Mode Shutdown is to shut down the UPS output by turning o the rectier, inverter and static bypass
switch so that there is no power to the loads.

Any Mode Shutdown can be operated locally and remotely, as described as follows:

♦ Local Any Mode Shutdown can be performed by shorting Pin 1 and Pin 2

♦ Remote Any Mode Shutdown can be performed by a switch connected to Pin 1 and Pin 2 and mounted at a remote

location

NOTES:

♦ Remote Power o will be performed either by NO or NC contact of Any Mode Shutdown, depending on the settings

in the conguration program

♦ A current-limited source (+12 V dc, 50 mA) will be available from the UPS

♦ e connection to the UPS for remote connection will be via terminal block connector

♦ Any Mode Shutdown wiring must conform to all national, regional and local wiring regulations

!

WARNING

When the Auto-Enable output option is selected and the UPS output is disabled using Pin 1 and Pin 2, the S4K2UC’s
output can turn on automatically and without warning if the Pin 1 and Pin 2 connection is changed.

5.3.2 Battery Mode Shutdown

Battery Mode Shutdown permits shutting down the UPS by turning o the rectier, inverter and static bypass switch so that
there is no power to the load when the UPS is on battery.

Battery Mode Shutdown can be performed locally or remotely:

♦ Local Battery Shutdown can be performed by shorting Pin 3 and Pin 4

♦ Remote Any Mode Shutdown can be achieved by a switch connected to Pin 3 and Pin 4 and mounted at a remote location

34 | 5.0 Communication

NOTES:

♦ Remote power o will be performed by NO contact

♦ A current-limited source (+12 V dc, 50 mA) will be available from the UPS

♦ e connection to the S4K2UC for remote connection will be via terminal block connector

♦ Battery mode shutdown wiring will follow local wiring codes and laws

♦ is signal must last for 1.5 seconds or longer

♦ A battery shutdown signal will not cause an immediate shutdown. It will start a 2 minute shutdown timer. is timer

cannot be stopped once triggered. If utility power returns during this countdown, the S4K2UC will still shut down and
must remain shut down for 10 seconds. Whether the UPS turns back on when the power is restored depends on the
auto-restart setting.

5.3.3 On Battery

On Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery this dry
contact will be closed.

5.3.4 Low Battery

Low Battery signal is a Normally Open (NO) dry contact. When the UPS is supplying output power from the battery and
has reached the Low Battery Warning time selected in the conguration program, this dry contact will be closed.

e rated values for the dry contacts are:

♦ Rated Voltage: 5 V dc

♦ Working Voltage Range: 4.5–10 V dc

♦ Rated Current: 30 mA

S4K2UC SERIES USER MANUAL | 35

6.0 Battery Cabinet

Optional battery cabinets are available for the S4K2UC. e battery connectors and input breaker are on the battery cabinet’s
rear panel, as shown in Figure 27. For battery cabinet specications, refer to Table 12. For battery run times, refer to Table 14.

Input Breaker

Battery Connectors

Figure 27: Battery cabinet

!

WARNING

Do not contact the battery connectors and ground without wearing protective gloves and clothing and taking other precau­tions against electrical shock. e battery loop and ac input are not insulated, which may cause a dangerous voltage between
the battery connectors and ground.

36 | 7.0 Maintenance

7.0 Maintenance

is section describes replacing the internal battery pack, precautions, and checking the UPS’s status and functions.

7.1 Replacing the Internal Battery Pack

e S4K2UC is designed to allow properly trained and qualied service personnel to replace the internal battery pack safely.
Read the safety cautions before proceeding. Contact your SolaHD representative to obtain the part number and pricing of the
appropriate replacement battery pack. Replace batteries with the same type and number of batteries or battery packs.

!

CAUTION

Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to local regulations.

7.1.1 Battery Replacement Procedures

1. Remove the front metal bezel cover from the UPS.

2. Loosen and remove the six screws on the battery door, as shown in Figure 28.

3. Lay the battery door and screws aside for reassembly.

Battery Door

Front Metal
Bezel Cover

Figure 28: Removing the front metal bezel cover and battery door

4. Gently pull the battery wire out and disconnect the polarized battery plug and battery receptacle, as shown in Figure 29.

S4K2UC SERIES USER MANUAL | 37

Battery Connector Battery Receptacle

Figure 29: Disconnecting the battery plug and battery receptacle (front view)

5. Grasp the battery handle and pull the internal battery pack out of the UPS, as shown in Figure 30.

Internal Battery Pack

Battery
Handle

Pull Out with Battery Handle

Figure 30: Pull out the internal battery pack

6. Unpack the new internal battery pack. Take care not to destroy the packaging. Compare the new and old internal battery

packs to make sure they are the same type and model. If they are the same, proceed with Step 7; if they are dierent, stop
and contact your local SolaHD representative or SolaHD Technical Support immediately.

7. Line up and slide in the new internal battery pack.

8. Reconnect the polarized battery plug and battery receptacle.

9. Gently push the battery wire and internal battery pack back into the UPS.

10. Reattach the front battery door with the six screws.

11. Reattach the front metal bezel cover to the UPS.

NOTE: e internal battery pack is hot-swappable. However, caution should be exercised during this procedure because the
load is unprotected from disturbances and power outages. Do not replace the battery while the UPS is operating in Battery
Mode. is will result in a loss of output power and will drop the connected load.

7.2 Battery Charging

e batteries are valve-regulated, non-spillable, lead acid and should be kept charged to attain their design life. e S4K2UC
charges the batteries continuously when it is connected to the utility input power.

If the S4K2UC will be stored for a long time period of time, SolaHD recommends connecting the UPS to input power for at
least 24 hours every four to six months to ensure full recharge of the batteries.

38 | 7.0 Maintenance

!

WARNING

e battery can present a risk of electrical shock and high short circuit current. e following precautions should be observed
before replacing the battery pack:

♦ Remove rings, watches and other metal objects

♦ Use tools with insulated handles

♦ Do not lay tools or other metal objects on the batteries

♦ If the battery kit is damaged in any way or shows signs of leakage, contact your SolaHD representative immediately

♦ Do not dispose of batteries in a re; they may explode

♦ Handle, transport and recycle batteries in accordance with local regulations

7.3 Precautions

Although the S4K2UC has been designed and manufactured to ensure personal safety, improper use can result in electrical
shock or re. To ensure safety, observe the following precautions:

♦ Turn o and unplug the S4K2UC before cleaning it

♦ Clean the UPS with a dry cloth—do not use liquid or aerosol cleaners

♦ Never block or insert any objects into the ventilation holes or other openings of the S4K2UC

♦ Do not place the S4K2UC power cord where it might be damaged

7.4 Checking UPS Status

SolaHD recommends checking the UPS operation status every six months.

♦ Check if the UPS is faulty: Is the Fault Indicator on? Is the UPS sounding an alarm?

♦ Check if the UPS is operating in Bypass Mode. Normally, the UPS operates in Normal Mode; if it is operating in

Bypass Mode, stop and contact your local SolaHD representative or SolaHD Technical Support.

♦ Check if the battery is discharging. When the utility input is normal, the battery should not discharge. If the UPS is

operating in Battery Mode, stop and contact your local SolaHD representative or SolaHD Technical Support.

7.5 Checking UPS Functions

NOTE: UPS function check procedures may interrupt power supply to the connected load. Back up all critical load data
before conducting the UPS functions check.

SolaHD recommends checking the UPS functions once every six months.

Procedures are as follows:

1. Press the Standby/Manual Bypass button to check whether the alarm and indicators are normal.

2. Press the On/Alarm Silence/Manual Battery Test button to check again whether the indicators are on and the UPS is

operating normally.

3. Press the On/Alarm Silence/Manual Battery Test button for 3 seconds after Inverter Mode; the UPS should initiate

battery self-test. Check to determine whether the battery is operating normally. If not, stop and contact your local
SolaHD representative or SolaHD Technical Support.

S4K2UC SERIES USER MANUAL | 39

A B C D E

8.0 Troubleshooting

is section indicates various UPS symptoms a user may encounter and troubleshooting steps in the event the UPS develops
a problem. Use the following information to determine whether external factors caused the problem and how to remedy the
situation.

8.1 UPS Symptoms

e following symptoms indicate the S4K2UC is malfunctioning:

♦ e relative indicators will illuminate, indicating the UPS detected a problem

♦ An alarm will sound, indicating that the UPS requires attention

8.1.1 Indicators

In addition to the fault indicator being illuminated, one or more of LED segments of Battery Level indicator will also be
illuminated to provide a diagnostic aid to the user, as shown in Figure 31. e descriptions are listed in Table 8.

Figure 31: Battery Level indicator

Table 8: Indicator Descriptions

Indicator Diagnosis Audible Alarm

A–E On bypass from output overload Half-second beep every half second

A On bypass due to overtemperature condition 1-second beep every 4 seconds

B On bypass due to dc bus overvoltage 1-second beep every 4 seconds

C On bypass due to dc/dc power supply failure 1-second beep every 4 seconds

D PFC failure 1-second beep every 4 seconds

E On bypass due to inverter failure 1-second beep every 4 seconds

A & C UPS failed battery test 2-second beep every 60 seconds

C & E UPS shutdown by command from communication (USB port or IntelliSlot port) No audible alarm

A & B

Battery indicator ashing

Ac Input indicator ashing

Bypass indicator ashing Utility power voltage or frequency is our of tolerance; bypass is unavailable n/a

Note: A–E indicators are shown in Figure 23

UPS failure (includes dual-fan failure, single-fan failure under certain condi­tions, and battery charger failure)

Internal battery source not available. Check battery connection, power down
and reboot the UPS.

Line-to-neutral reversal in the ac input power supply or a loss of proper
grounding for the UPS. UPS cannot start in standby status.

Continuous alarm

Continuous alarm

Continuous alarm

40 | 8.0 Troubleshooting

8.1.2 Audible Alarm

An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS operating status. e
audible alarm will sound as described in Table 9.

Table 9: Audible Alarm Descriptions

Condition Alarm

Battery discharge Half-second beep every 10 seconds

Low battery Two half-second beeps every 5 seconds

UPS fault, load on bypass 1-second beep every 4 seconds

UPS fault, no power to load Continuous

Overload Half-second beep every half second

Battery replacement 2-second beep every 60 seconds

Battery loss Continuous

Wiring problem (including line-to-neutral reversal or a loss of proper
grounding for UPS)

Bypass reminder 1-second beep every 2 minutes

Continuous

8.2 Troubleshooting

In the event of an issue with the UPS, refer to Table 10 to determine the cause and solution. If the issue persists, contact
SolaHD Technical Support.

Table 10: Troubleshooting

Problem Cause Solution

UPS fails to start when the On/Alarm Silence/
Manual Battery Test button is pressed

Battery indicator is illuminated

UPS has reduced battery backup time

UPS is short-circuited or overloaded

UPS is not plugged in

UPS input protection breaker has opened

Utility power is out of tolerance

Batteries are not fully charged

UPS is overloaded

Batteries may not be able to hold a full charge
due to age

Ensure the UPS is o. Disconnect all loads and
ensure nothing is lodged in the output recep­tacles. Ensure loads are not defective or shorted
internally.

UPS is operating from Battery Mode. Ensure
UPS is securely plugged into the wall recep­tacle.

UPS is operating from Battery Mode. Save data
and close applications. Reset input breaker,
then restart the UPS.

UPS is operating from Battery Mode. Save data
and close applications. Ensure utility supply
voltage is within acceptable limits for the UPS.

Keep the UPS plugged in continuously for at
least 24 hours to recharge the batteries

Check Load Level indicator and reduce the load
on the UPS

Replace the batteries. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for replacement battery kits.

Fault and Bypass indicators and all LED
segments of the Battery Level indicator are
illuminated

UPS is overloaded or the load is faulty

Check the Load Level indicator and remove
non-essential loads. Recalculate the load and
reduce the number of loads connected to the
UPS. Check the load for faults.

Table 10: Troubleshooting

Problem Cause Solution

Fault and Bypass indicators and Diagnostic A
indicator are illuminated

Fault and Bypass indicators and Diagnostic B
indicator are illuminated

Fault and Bypass indicators and Diagnostic C
indicator are illuminated

Fault indicator and Diagnostic D indicator are
illuminated

Fault and Bypass indicators and Diagnostic E
indicator are illuminated

Fault indicator and Diagnostic A and C indica­tors are illuminated

Fault and Bypass indicators and Diagnostic C
and E indicator are illuminated

Fault indicator and Diagnostic A and B indica­tors are illuminated; continuous alarm sounds

Ac Input indicator is ashing

Battery indicator is ashing; continuous alarm
sounds

Bypass indicator is ashing

UPS shutdown due to overtemperature condition
Load is on bypass power

UPS internal dc bus overvoltage

UPS dc/dc fault

UPS PFC (Power Factor Correction Circuit) fault

UPS inverter fault

UPS failed the battery test

UPS shut down by a command from the
communication port(s)

UPS failure (includes dual-fan failure, single-fan
failure under certain conditions, and battery
charger failure)

UPS detected a line-to-neutral reversal or a loss
of proper grounding for the UPS. A continuous
alarm will sound; the UPS cannot start up in
standby status.
This is active only when power is rst applied to
the input. Once the UPS is running, the Ac Input
indicator will ash, unless the input wiring is
correctly changed.

Battery source is not available

The bypass is disabled because the voltage or
frequency is outside the acceptable limits

S4K2UC SERIES USER MANUAL | 41

Ensure the UPS is not overloaded, ventila­tion holes are not blocked, or room ambient
temperature is not excessive. Wait 30 minutes
to allow the UPS to cool, then restart the UPS.
If the UPS cannot restart, contact your local
dealer, SolaHD representative or SolaHD Tech­nical Support for assistance.

UPS requires service. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for assistance.

UPS requires service. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for assistance.

UPS requires service. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for assistance.

UPS requires service. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for assistance.

Replace the batteries. Contact your local dealer,
SolaHD representative or SolaHD Technical
Support for replacement battery kits.

UPS has received a signal or command from
the attached computer. If this was inadver­tent, ensure the communication cable used is
correct for your system. For assistance, contact
SolaHD Technical Support.

Ensure fan is not blocked up. If the fault is not
resolved, contact SolaHD Technical Support for
assistance.

Contact a qualied electrician to verify site
wiring.

Check battery connections, completely power
down and restart the UPS.
NOTE: If the battery circuit opens while the UPS
is running, it will be detected when the next
battery test is performed.

The ac input powers the PFC input and serves
as the bypass source. If the ac is present but the
voltage or frequency exceeds the acceptable
range for safe operation with a load, the bypass
will be disabled and this indicator will ash,
indicating that the bypass is unavailable.

For further assistance, please contact SolaHD Technical Support at [phone]/[phone] or by e-mail at [e-mail].

When reporting an issue to Technical Support, please include the UPS model number and serial number. This information is located on the top
panel of the UPS.

42 | 9.0 Specications

9.0 Specications

Table 11: UPS Specications

Parameters

DIMENSIONS, D x W x H, in. [mm]

Unit 19.7 x 16.9 x 3.4 [497 x 430 x 85]

Shipping 25.5 x 23.9 x 10.6 [647 x 607 x 270]

WEIGHT, lb. [kg]

Unit 37.0 [16.8] 51.1 [23.2] 51.1 [23.2] 71.4 [32.4]

Shipping 44.1 [20.0] 57.3 [26.0] 57.3 [26.0] 79.4 [36.0]

INPUT AC PARAMETERS

Voltage range (typical) 120 V ac nominal; variable based on output load

90% to 100% Loading 90 V ac/140 V ac 102 V ac/140 V ac

70% to 90% Loading 86 V ac/140 V ac 96 V ac/140 V ac

30% to 70% Loading 77 V ac/140 V ac 84 V ac/140 V ac

0% to 30% Loading 60 V ac/140 V ac 60 V ac/140 V ac

Power factor 0.99

Frequency 40 Hz to 70 Hz; auto sensing

Input power cord 10 ft. attached with NEMA 5-15P plug

OUTPUT AC PARAMETERS

Output receptacles 5-15R x 6 5-20R x 6 L5-30R x 1 + 5-20R x 6

Voltage 110/115/120/127 V ac (user-congurable) ±3%

Waveform Sine wave

Utility (V ac) Mode overload 200% for 2 seconds; 150% for 50 seconds with transfer to bypass

Power factor 0.90

BATTERY

Type Valve-regulated, non-spillable, lead acid

Qty x V x Rating 4 x 12 V x 5.0 Ah 4 x 12 V x 7.2 Ah 4 x 12 V x 9.0 Ah 6 x 12 V x 9.0 Ah

Battery mfr./Part number YUASA/NPH5-12; CSB/HR 1221W

Backup time See Table 13

Recharge time 3 hours to 90% capacity after full discharge with 100% load until UPS auto shutdown (internal batteries only)

ENVIRONMENTAL REQUIREMENTS

Operating temperature 0°C to +40°C [+32°F to +104°F]; see Table 12 for operating temperature parameters

S4K2U700C S4K2U1000C S4K2U1500C S4K2U2000C S4K2U3000C

Model

Panasonic/

UP-RW1236;

CSB/GP 1272

23.7 x 16.9 x 3.4
[602 x 430 x 85]

29.4 x 23.4 x 10.6
[747 x 607 x 270]

10 ft. attached with

NEMA 5-20P plug

Panasonic/UP-RW1245; CSB/HR 1234W F2

10 ft. attached with

NEMA L5-30P plug

Storage temperatures -15°C to +50°C [+5°F to +122°F]

Relative humidity 0% to 95%, non-condensing

S4K2UC SERIES USER MANUAL | 43

Table 11: UPS Specications

Parameters

Operating elevation Up to 10,000 ft. [3,000 m] at +40°C [+104°F] without derating

Storage elevation 50,000 ft. [15,000 m] max.

Audible noise

AGENCY

Safety UL1778, cUL Listed

RFI/EMI FCC Part 15, Class A = CISPR22 Class B

Surge immunity IEC62040-2 2nd Ed.

Transportation ISTA Procedure 1A

S4K2U700C S4K2U1000C S4K2U1500C S4K2U2000C S4K2U3000C

<43 dBA max. @

3 ft. [1 m] front &

sides; <46 dBA max.

@ 3 ft. [1 m] rear

<45 dBA max. @

3 ft. [1 m] front &

sides; <50 dBA max.

@ 3 ft. [1 m] rear

Table 12: Battery Cabinet Specications

Parameters

Used with UPS models S4K2U700C, S4K2U1000C, S4K2U1500C, S4K2U2000C S4K2U3000C

DIMENSIONS, D x W x H, in. [mm]

Unit 19.7 x 16.9 x 3.4 [497 x 430 x 85] 23.7 x 16.9 x 3.4 [602 x 430 x 85]

Shipping 24.3 x 22.4 x 10.3 [617 x 570 x 262] 28.2 x 22.4 x 10.3 [717 x 570 x 262]

WEIGHT, lb. [kg]

Unit 70.5 [32.0] 93.5 [42.4]

Shipping 77.2 [35.0] 101.4 [46.0]

BATTERY PARAMETERS

Type Valve-regulated, non-spillable, lead acid

Qty x V x Rating 2 x 4 x 12 V x 9.0 Ah 2 x 6 x 12 V x 9.0 Ah

Battery mfr./Part number Panasonic/UP-RW1245; CSB/HR 1234W F2

Backup time See Table 13

ENVIRONMENTAL REQUIREMENTS

Operating temperature 0°C to +40°C [+32°F to +104°F]

Storage temperatures -15°C to +50°C [+19°F to +122°F] High ambient temperatures will reduce battery life

Relative humidity 0% to 95%, non-condensing

Operating elevation Up to 10,000 ft. [3,000 m] at +40°C [+104°F] without derating

Storage elevation 50,000 ft. [15,000 m] max.

AGENCY

Safety UL1778, cUL Listed

RFI/EMI FCC Part 15, Class A = CISPR22 Class B

Surge immunity IEC62040-2 2

Transportation ISTA Procedure 1A

S4K2U48BATC S4K2U96BATC

Model

<46 dBA max. @

3 ft. [1 m] front &

sides; <45 dBA max.

@ 3 ft. [1 m] rear

Model Number

nd

Ed.

<48 dBA max. @ 3 ft. [1 m] front & sides;

<48 dBA max. @ 3 ft. [1 m] rear

44 | 9.0 Specications

Table 13: Operating Temperature Parameters

Ambient temperature +25°C to +30°C [+77°F to +86°F] +30°C to +35°C [+86°F to +95°F] +35°C to +40°C [+95°F to +104°F]

Maximum output power factor derating at
maximum load

100% to 93% 93% to 86% 86% to 79%

Table 14: Battery Backup Times

Backup Time (minutes) at Load (watts)

Number of

Batteries

Internal battery

Internal battery +
1 external battery
cabinet

Internal battery +
2 external battery
cabinets

Internal battery +
3 external battery
cabinets

Internal battery +
4 external battery
cabinet

1

Backup times are valid for all models rated with the listed VA

2

Approximate backup times are in minutes and at +25°C [+77°F] with a resistive load

Model

VA

200W400W600W800W1000 W1200 W1400 W1600 W1800 W2000 W2500

1

Minutes Min. W

700 26 14 6 -- -- -- -- -- -- -- -- 6 630

1000 28 15 9 5 -- -- -- -- -- -- -- 4 900

1500 -- 26 16 10 8 5 -- -- -- -- -- 4 1350

2000 -- -- 20 11 10 8 6 5 4 -- -- 4 1800

3000 -- -- -- 25 20 14 10 9 8 5 4 4 2700

700 126 78 54 -- -- -- -- -- -- -- -- 50 630

1000 128 74 52 41 -- -- -- -- -- -- -- 27 900

1500 -- 110 72 48 36 28 -- -- -- -- -- 24 1350

2000 -- -- 54 34 34 26 22 17 15 -- -- 15 1800

3000 -- -- -- 102 80 56 50 44 38 26 22 18 2700

700 264 122 88 -- -- -- -- -- -- -- -- 82 630

1000 252 126 84 60 -- -- -- -- -- -- -- 58 900

1500 -- 208 132 94 74 54 -- -- -- -- -- 48 1350

2000 -- -- 120 82 60 52 44 36 29 -- -- 29 1800

3000 -- -- -- 124 114 106 92 74 66 62 46 44 2700

700 280 140 120 -- -- -- -- -- -- -- -- 116 630

1000 320 148 118 80 -- -- -- -- -- -- -- 78 900

1500 -- 310 204 138 102 90 -- -- -- -- -- 82 1350

2000 -- -- 180 126 92 72 62 52 45 -- -- 45 1800

3000 -- -- -- 174 150 122 110 105 104 76 62 62 2700

700 560 300 146 -- -- -- -- -- -- -- -- 140 630

1000 600 250 138 116 -- -- -- -- -- -- -- 109 900

1500 -- 400 256 180 144 110 -- -- -- -- -- 100 1350

2000 -- -- 240 166 130 108 94 84 64 -- -- 64 1800

3000 -- -- -- 184 172 150 128 120 119 105 92 84 2700

2

100% Load

W

S4K2UC SERIES USER MANUAL | 45

10.0 Registration & Warranty

10.1 Product Registration

To register your product for updates and information on service and support, visit our Web site at:
http://www.solahd.com/support/registration.htm

10.2 Warranty Information

Please see the enclosed “Terms & Conditions of Sale”.

SolaHD • U.S. [phone] • International [phone] • www.solahd.com

P/N: A272-212 Rev. 1 01/29/10