S4K2U-5C Series Industrial On-Line UPS
230 V, 1000 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.
The SolaHD and Emerson logos are registered in the U.S. Patent and Trademark Oce. All other product or service names
are the property of their registered owners.
©2012 EGS Electrical Group, LLC. All rights reserved. Specications are subject to change without notice.
S4K2U5C 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 Rectier/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 Mains (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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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 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 S4K2U-5C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2 Starting the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3 Manual Battery Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4 Manual Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.5 Shut Down the S4K2U-5C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.6 Disconnecting Input Power from the S4K2U-5C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
S4K2U5C 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 Conguration 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
7.3 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 Specications 42
10.0 Warranty & Support 45
10.1 Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10.2 Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 qualied 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
This 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.
This UPS contains no user-serviceable parts except the internal battery pack. The 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.
This UPS has an internal battery, and the output receptacles of the UPS may carry live voltage even if the UPS is not
connected to mains input power.
Before moving or rewiring this UPS, disconnect mains 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 S4K2U-5C 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 aect 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.
This 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. This UPS is designed for data processing equipment. If uncertain, consult your local
dealer or SolaHD representative.
S4K2U5C SERIES USER MANUAL | 7
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 aected area immediately and get medical attention.
!
CAUTION
A battery can present a risk of electrical shock and high short-circuit current. The following precautions should be
observed when working with batteries:
• Remove watches, rings, and other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves, boots, and safety glasses.
• Do not lay tools or metal parts on top of batteries.
• If the battery pack is damaged in any way or shows signs of leakage, please contact your SolaHD representative
immediately.
• 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. The 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
The S4K2U-5C 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) This device may not cause harmful interference and (2) This 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.
The S4K2U-5C 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: The UPS makes use of components dangerous for the environment (e.g. batteries, electronic cards, and
electronic components). The components removed must be taken to specialized collection and disposal centers.
Notice to European Union Customers—Disposal of Old Appliances: This product has been supplied from an environmentally aware manufacturer that complies with the Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/CE.
The crossed-out-wheelie-bin symbol (at right) is placed on this product to encourage you to recycle whenever
possible. Please be environmentally responsible and recycle this product through your recycling facility after
the product’s end of life. Do not dispose of this product as unsorted municipal waste. Follow local municipal
waste ordinances for proper disposal provisions to reduce the environmental impact of Waste Electrical and
Electronic Equipment (WEEE).
8 | Important Safety Instructions
Glossary of Symbols
Risk of electrical shock
!
i
-
PbH2SO4
R
Indicates caution followed by important instructions
Ac input
Ac output
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
S4K2U5C SERIES USER MANUAL | 9
1.0 Product Description
The SolaHD S4K2U-5C 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. The S4K2U5C protects equipment from these disturbances. The S4K2U-5C continuously charges its batteries from mains power,
enabling it to supply power to connected loads even when mains power fails.
This sections describes the UPS, its features, models, appearance, components, operating principles, and operating mode.
1.1 Features
The UPS includes the following 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
• CE mark and safety approval from CE
• Communication options: USB port, IntelliSlot® port, and terminal block communication
• Dry contacts for remote monitoring
• Input power factor greater than 0.99 at 100% load
• Output voltage selection function using the conguration 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
S4K2U1000-5C 1000 VA/900 W
S4K2U2000-5C 2000 VA/1800 W
S4K2U3000-5C 3000 VA/2700 W
10 | 1.0 Product Description
1.3 Appearance & Components
1.3.1 Front Panel & Controls
The SolaHD S4K2U-5C rack/tower models, in various power ratings, have the same general appearance, controls, and
features (see Figure 1). The various rack/tower models dier largely in the receptacle type.
Ventilation Slots
Figure 1: S4K2U-5C rack/tower models—front view
1.3.2 Rear Panel Features
The rear panel of the S4K2U-5C has these features (see Figure 2):
• USB port
• Cooling fan
• Input receptacle
• Output receptacles
• Input circuit breaker
• IntelliSlot port
• Communication terminal block
Operation and Display Panel
1000 VA models
S4K2U5C SERIES USER MANUAL | 11
IntelliSlot Port
Terminal Block
Communication
2000 VA models
IntelliSlot Port
USB Port
USB Port
Cooling Fan
Input Circuit
Breaker
External Battery
Connector
Input Circuit
Breaker
C14 Input Receptacle
C13 Output Receptacles
C20 Input Receptacle
Ter minal Block
Communication
Cooling Fan
External Battery
Connector
3000 VA models
IntelliSlot Port
Terminal Block
Communication
USB Port
Cooling Fan
Figure 2: S4K2U-5C 230 V rack/tower models—rear panel components
Input Circuit
Breaker
External Battery
Connector
Output Circuit
Breakers
C13 Output
Receptacles
C13 Output Receptacles
C20 Input Receptacle
C19 Output
Receptacle
12 | 1.0 Product Description
1.4 Major Components
The operating principle of the UPS is illustrated in Figure 3.
Output
L1
L2/N
GG
L1
L2/N
Input
SPD & EMI/
RFI Fi l ters
Battery
Charger
Rectifier/
PFC
Dynamic
Bypass
Inverter
Dc-to-Dc
Converter
Battery
Figure 3: Operating principle diagram
The UPS is composed of mains input, SPD and EMI/RFI lters, rectier/PFC, inverter, battery charger, dc-to-dc converter,
battery, dynamic bypass, and UPS output.
1.4.1 Surge Protection Device (SPD) & EMI/RFI Filters
The S4K2U-5C has surge protection and lters that protect the connected load from power surges, electromagnetic
interference (EMI), and radio frequency interference (RFI). These features can minimize any surges or interference present
in the mains power. The lters also prevent surges or interference generated by the UPS from adversely aecting devices
connected on the same branch as the UPS.
1.4.2 Rectier/Power Factor Correction (PFC) Circuit
In normal operation, the S4K2U-5C’s rectier/power factor correction (PFC) circuit converts mains 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:
• Ecient power use by the UPS
• Reduced reected harmonics
This results in cleaner power being available to other devices in the building not protected by the S4K2U-5C.
S4K2U5C SERIES USER MANUAL | 13
1.4.3 Inverter
In normal operation, the S4K2U-5C’s inverter utilizes the dc output of the PFC rectier to produce precise, regulated sine
wave ac power. When mains power fails, the inverter receives dc power from the dc-to-dc converter. In either operation
mode, the UPS inverter is on-line, continuously generating clean, precise, regulated ac output power.
1.4.4 Battery Charger
The battery charger utilizes energy from the mains power and precisely regulates it to continuously oat charge the
batteries. The batteries are being charged whenever the S4K2U-5C is plugged in, even when the UPS is not turned on.
1.4.5 Dc-to-Dc Converter
The dc-to-dc converter raises the dc voltage from the battery to the optimum operating voltage for the inverter. This
allows the inverter to operate continuously at its optimum eciency and voltage, thus increasing reliability.
1.4.6 Battery
The S4K2U-5C uses valve-regulated, non-spillable, lead acid batteries. To maintain battery design life, operate the UPS 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
The S4K2U-5C provides an alternate path for mains power to the connected loads in the unlikely event of a UPS malfunction. Should the S4K2U-5C have an overload, overtemperature, or UPS failure condition, the UPS automatically transfers
the connected loads to bypass.
NOTE: The bypass power path does not protect the connected loads from disturbances on the mains.
1.5 Operating Modes
The UPS operating modes include: Mains (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 Mains (V ac) Mode
During Mains (V ac) Mode, mains power provides energy to the S4K2U-5C. The lters, PFC rectier, 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 and held for about 2 seconds while
the S4K2U-5C is in Mains (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, mains 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
The S4K2U-5C enters Battery Mode when mains power fails or is outside acceptable values. The battery system supplies
power through the dc-to-dc converter to the inverter to generate clean ac power for the connected loads.
When the S4K2U-5C 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-congurable).
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 Specications—Table 14”. The times in Table 14 are approximate. They 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 S4K2U-5C while in Battery Mode will result in loss of output power. If the UPS is turned o manually, it
must be manually restarted after mains 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 conguration program for Auto-Restart (refer to “5.2.1
Conguration Program”).
1.5.4 Battery Recharge Mode
Once mains power is applied to the S4K2U-5C, the battery charger begins charging the batteries.
1.5.5 Frequency Converter Mode
All models of the S4K2U-5C are capable of frequency conversion. Frequency Conversion Mode can be selected using the
conguration 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: The default for all models of the S4K2U-5C 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.
S4K2U5C 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
representative immediately.
2.2 What’s Included
• Compact disk containing: MultiLink, conguration program, and user manual
• One USB cable, 2 m (6-1/2 ft.) long
• 1000 VA Models:
Two, 10 A IEC C13 C14 output cables, 2 m (6-1/2 ft.) long
• 2000 VA – 3000 VA Models:
Three, 10 A IEC C13 C14 output cables, 2 m (6-1/2 ft.) long
One, CEE 7/7 (Schuko) to IEC C20 input cable, 2.5 m (8-1/5 ft.) long
One, BS1363 (UK) to IEC C20 input cable, 2.5 m (8-1/5 ft.) long.
• Mounting hardware, including screws and handles
• Two plastic tower stand sets (four pieces total)
• Terminal block communication terminals
• Warnings, Safety Instructions booklet, and WEEE recycling sheet (ISO 14001 compliance)
NOTE: The S4K2U-5C external battery cabinet shipping package includes one battery cabinet, two spacers for tower
conguration, 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. The installation envi-
ronment should meet the specications listed in “9.0 Specications”.
• Place the UPS in an area of unrestricted airow around the unit, away from water, ammable liquids, gases, corro-
sives, 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 100 mm (4 inches) 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
The S4K2U-5C may be installed as a tower or in a rack, depending on space and use considerations. The S4K2U-5C 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 S4K2U-5C 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 S4K2U-5C needs two assembled support
bases, one in the front and one in the rear.
4. Adjust the direction of the operation and display panel on the S4K2U-5C.
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
S4K2U5C 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 posi-
tion 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 S4K2U-5C. At this point, the UPS operation and display panel has been
rotated 90 degrees clockwise, which provides upright viewing for users.
5. Place the S4K2U-5C and any battery cabinets on the support bases. Each S4K2U-5C needs two support assemblies as
shown in Figure 7.
S4K2U-5C UPS
Operation and
Display Panel
Rotated for
Tower Operation
S4K2U-5C 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 S4K2U-5C is installed in a rack, it must be supported by a shelf, brackets, or slide rails on each side. The
factory-supplied ears cannot support the weight of the UPS. They 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 S4K2U-5C in a rack:
1. Unpack the two bracket assemblies and mounting hardware from the rack-mounting kit (P/N: SRS1832). Bracket
assembly includes inner member and front and rear members. They are interchangeable between left-hand or righthand. Mounting hardware includes M4 screws and M5 screws.
2. Remove inner member of each bracket 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 S4K2U-5C’s mounting position inside the racks vertical rails.
!
CAUTION
Install the S4K2U-5C as low as possible in the rack to reduce the risk of tipping.
4. Attach the rear member of each bracket 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 bracket assembly
S4K2U5C SERIES USER MANUAL | 19
5. Extend the bracket assembly by sliding the front member forward until it touches the rack’s front vertical rails (adjust-
able length: 457–813 mm/18–32 in.). Use two M5 screws to x each front member onto the front vertical rails through
the installation holes. Make sure that bracket 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 bracket 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 bracket 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 bracket 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
Ear (2 pcs)
M4 screw (8 pcs)
Figure 13: Installing ears
9. Insert the UPS, with inner members attached, into the bracket 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: The ends of the inner members are tapered to allow the rear of the UPS to be angled upward before insertion,
if space allows. Do not use the factory supplied rack handles to lift the UPS; their intended use is to slide the UPS in
and out of the rack.
NOTE: The UPS should move smoothly into the bracket assemblies. If not, recheck the alignment of the front and rear
members from Steps 4 through 6.
S4K2U5C SERIES USER MANUAL | 21
Insert
Front Member
Inner Member
Figure 14: Insert the UPS
10. Through the ears, 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. The installation procedures are the same as those of the UPS.
NOTE: Up to four external battery cabinets can be connected to the S4K2U-5C. Each cabinet will increase the battery
recharge time.
2.5 Cable Connection
The S4K2U-5C rear panel has input and output receptacles. Refer to “1.3.2 Rear Panel Features” for details. The battery
cables are supplied with the battery cabinet.
2.5.1 Connecting Input Plug & Loads
NOTE: 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 electrical codes. The wall receptacle must be grounded. SolaHD recommends installing an upstream circuit breaker of the same series as the S4K2U-5C’s input circuit breaker. The upstream
breaker should be the same or higher capacity than the UPS input circuit breaker.
The specication of input circuit breaker on the rear panel of UPS is shown in Table 2:
Table 2: Input Circuit Breaker Specication
Model Rated Circuit Breaker
S4K2U1000-5C 10 A
S4K2U2000-5C 16 A
S4K2U3000-5C 16 A
1. Plug all loads into the output receptacles on the rear panel of the S4K2U-5C.
NOTE: Distribute loads evenly across all receptacles to prevent overloading individual receptacles.
2. Plug the input receptacle of the S4K2U-5C into the input power connection.
22 | 2.0 Installation
2.5.2 Ac Input/Output Hardwire Installation
!
CAUTION
This installation must be performed by competent 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. This must be taken into
account when selecting the overload protection device at the input mains supply distribution point. To avoid random
tripping on startup, we recommend that the input mains supply be protected with a MCB (Mechanical Circuit Breaker)
capable of withstanding this initial inrush.
The mains input supply cable must be connected to the UPS via a wall mounted double pole circuit breaker. The 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. The 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
specications.
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 Specications
Model VA Input Current Rating
1000 VA 4.2 A 10 A 16 AWG/1.31 mm
2000 VA 8.7 A 16 A 14 AWG/2.08 mm
3000 VA 13.0 A 16 A 14 AWG/2.08 mm
Recommended
External Overcurrent
Protection
Recommended Wire
(105°C Copper Wire)
2
2
2
Maximum Wire
Accepted by
Terminal Block
8 AWG/8.36 mm
8 AWG/8.36 mm
8 AWG/8.36 mm
Terminal Tightening
2
20 in.-lb./2.25 N-m
2
20 in.-lb./2.25 N-m
2
20 in.-lb./2.25 N-m
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.
• The 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. The 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 certication requires that the supplied battery cable be used.
S4K2U5C 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.
Base 1Screw (2 pcs)
Figure 17: Installing Base 1
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)
terminals 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
Screw (2 pcs)
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).
Base 1
Box
Base 2
Screw (4 pcs)
Figure 21: Installing the box
S4K2U5C 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 Conguration Program included with the UPS to specify the number of external battery cabinets connected
to the S4K2U-5C. 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 S4K2U-5C (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 S4K2U-5C 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 congure and use the IntelliSlot communication card, refer to the card’s user manual.
26 | 3.0 Control & Indicators
3.0 Control & Indicators
The operation and display panel, shown in Figure 23, is on the front panel of the S4K2U-5C.
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
The 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
The 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 Mains (V ac)
Mode with no alarms present
To initiate a manual battery test
2
S4K2U5C SERIES USER MANUAL | 27
3.1.2 Standby/Manual Bypass Button
The 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 and hold it for about 2 seconds
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 (hold for at least a
half a second each time) while the UPS is in Manual Bypass
or Battery Mode
4
3
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
The operation and display panel has seven indicators (see Figure 23). The indicators can be divided into two groups
according to the applications: level indicators and UPS status indicators.
3.2.1 Battery Level Indicators
The Battery Level indicator is composed of ve sets of LED bars that illuminate and ash to indicate the battery capacity
level. The S4K2U-5C battery capacity level is shown in 20% increments (± 5%). The Battery Level indicators will illuminate
as shown in Figure 24.
Charging
0 - 20 %
Flash OFF OFF OFF OFF
21 - 40%
ON Flash OFF OFF OFF
41 - 60%
ONON Flash OFF OFF
61 - 80%
OFFON ON ON Flash
81 - 100 %
FlashONONONON
Fully
Charged
ON ON ON ON ON
Discharging
ON OFF OFF OFF OFF
ON ON OFF OFF OFF
ONON ON OFF OFF
OFFON ON ON ON
O NO NO NO NO N
ON ON ON ON ON
Figure 24: Battery Level indicators
28 | 3.0 Control & Indicators
3.2.2 Load Level Indicators
The Load Level indicator is composed of ve LED bars that illuminate to indicate the relative load on the UPS output in
25% increments (± 5%). The 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 mains input power is normal; o during mains failure; ashing when
mains power is outside the specications
On when the inverter is supplying power; o when the inverter is not supplying
power; and ashing when mains power is outside the specications
On when the bypass is supplying power; o when the inverter is supplying power;
and ashing when mains power is outside the specications
S4K2U5C SERIES USER MANUAL | 29
4.0 Operation
This 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 mains power from the UPS.
NOTE: The S4K2U-5C’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 S4K2U-5C
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 S4K2U-5C is operating normally.
5. Check the load level indicators to verify that the connected load does not exceed the UPS’s rated capacity.
The 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 mains 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
representative 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 and hold it for about 2 seconds 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 mains 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 S4K2U-5C
1. Transfer the UPS to manual bypass by pressing the Standby/Manual Bypass button once (hold it for about 2 seconds).
If manual bypass is not available, disregard the rst step.
2. To shut down the UPS, press the Standby/Manual Bypass button twice within 4 seconds (hold the button for about a
half a second each time).
Power to the connected loads is now o.
4.6 Disconnecting Input Power from the S4K2U-5C
1. Once the UPS has been shut down as detailed in “4.5 Shut Down the S4K2U-5C”, 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.
S4K2U5C SERIES USER MANUAL | 31
5.0 Communication
This section describes UPS communication over the three types of communication connections on the rear of the S4K2U-5C.
• 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
The IntelliSlot port accepts two optional cards:
• SNMPWEB Card. The IntelliSlot SNMPWEB Card provides SNMP monitoring and control of the UPS across the
network.
• IS-RELAY. The IntelliSlot IS-Relay Card provides dry contact relay outputs for custom-wired applications and delivers
support for built-in shutdown for AS/400 systems.
Follow the instructions provided with the IntelliSlot card to congure MultiLink, the UPS, or any additional ancillary
product for the S4K2U-5C. These instructions are also available at: www.solahd.com.
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 congured to shut down the UPS as well.
MultiLink can also be congured for use without the USB cable when the IntelliSlot SNMPWEB Card is installed in the UPS.
An optional MultiLink license kit allows you to shut down the UPS over a network. For more information about the MultiLink license kits, visit our Web site (www.solahd.com) or contact your SolaHD representative.
5.2 USB Port Communication
The standard B-type USB port is used to connect the UPS and network server or other computer system using MultiLink.
The conguration program can be completed through the communication port.
32 | 5.0 Communication
5.2.1 Conguration Program
Accessing the conguration program via USB is a new feature of the S4K2U-5C. For most users, the factory default
settings will be adequate. This section illustrates the features available for modication, as well as the factory default
settings.
The USB conguration program allows these features of the S4K2U-5C 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
230 220, 230, 240
!
WARNING
The output voltage settings cannot be changed while the UPS is on and powering connected loads.
NOTES:
• Programming the output voltage of a 230 V model to 220 V automatically derates the UPS to 96% of both the VA
and Watt ratings. Refer to “9.0 Specications” for VA and Watt ratings.
• The conguration program is compatible with UPS models S4K2UXXXX-5C, as in S4K2U3000-5C. It is not compatible
with earlier versions of the S4K2U-5 UPS.
• A computer running Windows 2000®, XP® or Vista® is required to set up and run the conguration program.
5.3 Terminal Block Communication
The terminal block includes eight pins, as shown in Figure 26.
S4K2U5C 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
The purpose of Any Mode Shutdown is to shut down the UPS output by turning o the rectier, 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 conguration program.
• A current-limited source for the optocoupler (+12 V dc, 50 mA) will be available from the UPS.
• The 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 S4K2U-5C’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 rectier, 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 Battery 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:
• A current-limited source for the optocoupler (+12 V dc, 50 mA) will be available from the UPS.
• The connection to the S4K2U-5C for remote connection will be via terminal block connector.
• Battery mode shutdown wiring will follow local wiring codes and laws.
• This 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. This timer
cannot be stopped once triggered. If mains power returns during this countdown, the S4K2U-5C 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 conguration program, this dry contact will be closed.
The dry contact rated values for the On Battery and Low Battery signals are:
• Rated Voltage: 5 V
• Working Voltage Range: 4.5–10 V
• Rated Current: 30 mA
S4K2U5C SERIES USER MANUAL | 35
6.0 Battery Cabinet
Optional battery cabinets are available for the S4K2U-5C. The battery port and input breaker are on the battery cabinet’s
rear panel, as shown in Figure 27. For battery cabinet specications, refer to Table 12. For battery run times, refer to Table 14.
Input Breaker
Battery Ports
Figure 27: Battery cabinet
!
WARNING
Do not contact the battery ports and ground without wearing protective gloves and clothing and taking other
precautions against electrical shock. The battery loop and ac input are not insulated, which may cause a dangerous
voltage between the battery ports and ground.
36 | 7.0 Maintenance
7.0 Maintenance
This section describes replacing the internal battery pack, precautions, and checking the UPS’s status and functions.
7.1 Replacing the Internal Battery Pack
The S4K2U-5C is designed to allow properly trained and qualied service personnel to replace the internal battery pack
safely. Read the “Battery Safety Notes” on page 7 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
!
WARNING
The battery can present a risk of electrical shock and high short circuit current. The following precautions should be
observed before replacing the battery pack: (1) Remove rings, watches and other metal objects; (2) Use tools with
insulated handles; (3) Do not lay tools or other metal objects on the batteries; (4) If the battery kit is damaged in
any way or shows signs of leakage, contact SolaHD immediately; (5) Do not dispose of batteries in a re; they may
explode; (6) Handle, transport and recycle batteries in accordance with local regulations.
S4K2U5C SERIES USER MANUAL | 37
4. Gently pull the battery wire out and disconnect the polarized battery connector and receptacle, as shown in Figure 29.
Battery Connector Battery Receptacle
Figure 29: Disconnecting the battery connector and 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
dierent, 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 connector and 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: The 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. This will result in a loss of output power and will drop the connected load.
38 | 7.0 Maintenance
7.2 Battery Charging
The batteries are valve-regulated, non-spillable, lead acid and should be kept charged to attain their design life. The
S4K2U-5C charges the batteries continuously when it is connected to the mains input power.
If the S4K2U-5C 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.
7.3 Precautions
Although the S4K2U-5C 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 S4K2U-5C 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 S4K2U-5C
• Do not place the S4K2U-5C 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 mains 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 buzzer 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.
S4K2U5C SERIES USER MANUAL | 39
ABCDE
8.0 Troubleshooting
This 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
The following symptoms indicate the S4K2U-5C is malfunctioning:
• The 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 the Battery Level indicator will also
be illuminated to provide a diagnostic aid to the user, as shown in Figure 31. The 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 Mains power voltage or frequency is our of tolerance; bypass is unavailable n/a
Note: A–E indicators are shown in Figure 31
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 horn
Continuous horn
Continuous horn
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. The
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 at (800) 377-4384/(847) 268-6000 or by e-mail at solahd.technicalservices@emerson.com.
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.
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 is short-circuited or overloaded
UPS is not plugged in
UPS input protection fuse has blown/opened
Mains power is our of tolerance
Batteries are not fully charged
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. Replace UPS input fuse,
then restart the UPS.
UPS is operating from Battery Mode. Save data
and close applications. Ensure mains supply
voltage is within acceptable limits for the UPS.
Keep the UPS plugged in continuously for at
least 24 hours to recharge the batteries
UPS has reduced battery time
UPS is overloaded
Batteries may not be able to hold a full charge
due to age
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 packs.
Table 10: Troubleshooting
Problem Cause Solution
S4K2U5C SERIES USER MANUAL | 41
Fault and Bypass indicators and all LED
segments of the Battery Level indicator are
illuminated
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 C 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
Ac Input indicator is ashing
Battery indicator is ashing Battery source is not available
Bypass indicator is ashing
UPS is overloaded or the load is faulty
UPS shutdown due to temperature conditions
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.
The bypass is disabled because the voltage or
frequency is outside the acceptable limits
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.
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 packs.
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 qualied 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.
42 | 9.0 Specications
9.0 Specications
Table 11: UPS Specications
Parameters
DIMENSIONS, D x W x H, mm in.]
Unit 497 x 430 x 85 [19.6 x 16.9 x 3.3] 602 x 430 x 85 [23.7 x 16.9 x 3.3]
Shipping 717 x 570 x 262 [28.2 x 22.4 x 10.3] 717 x 570 x 262 [28.2 x 22.4 x 10.3]
WEIGHT, kg [lb.]
Unit 16.8 [37.0] 23.2 [51.1] 32.4 [71.4]
Shipping 20.0 [44.1] 26.0 [57.3] 36.0 [79.4]
INPUT AC PARAMETERS
Voltage range (typical) 230 V ac nominal; variable based on output load
90% to 100% Loading 177 V ac/280 V ac 196 V ac/280 V ac
70% to 90% Loading 168 V ac/280 V ac 184 V ac/280 V ac
30% to 70% Loading 150 V ac/280 V ac 161 V ac/280 V ac
0% to 30% Loading 115 V ac/280 V ac 115 V ac/280 V ac
Power factor 0.99
Frequency 40 Hz to 70 Hz; auto sensing
Input power receptacle IEC 320 C14 IEC 320 C20
OUTPUT AC PARAMETERS
Output receptacles IEC 320 C13 x 6 IEC 320 C13 x 6; IEC 320 C19 x 1
Voltage 208/220/230/240 V ac (user-congurable) ±3%
Frequency 50 Hz or 60 Hz
Waveform Sine wave
Overload
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 9.0 Ah 6 x 12 V x 9.0 Ah
Battery mfr./Part number Panasonic/UP-RW1245; CSB/HR 1234W F2
Backup time See Table 14
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 13 for operating temperature parameters
Storage temperatures -15°C to +50°C [+5°F to +122°F]
Relative humidity 0% to 95%, non-condensing
Operating elevation Up to 3,000 m [10,000 ft.]
S4K2U1000-5C S4K2U2000-5C S4K2U3000-5C
200% for 2 seconds; 150% for 1
minute with transfer to bypass
200% for 2 seconds; 150% for 50
seconds with transfer to bypass
Model
200% for 2 seconds; 150% for 55
seconds with transfer to bypass
S4K2U5C SERIES USER MANUAL | 43
Table 11: UPS Specications
Parameters
S4K2U1000-5C S4K2U2000-5C S4K2U3000-5C
Storage elevation 15,000 m [50,000 ft.] max.
Audible noise
<43 dBA max. @ 1 m [3 ft.] front &
sides; <46 dBA max. @ 1 m [3 ft.] rear
AGENCY
Safety EC/EN/AS 62040-1-1:2008
RFI/EMI IEC/EN/AS 62040-2 2
Surge immunity IEC62040-2 2nd Ed.
Transportation ISTA Procedure 1A
Table 12: Battery Cabinet Specications
Parameters
Used with UPS models S4K2U1000-5C, S4K2U2000-5C S4K2U3000-5C
DIMENSIONS, D x W x H, mm [ in.]
Unit 497 x 430 x 85 [19.6 x 16.9 x 3.3] 602 x 430 x 85 [23.7 x 16.9 x 3.3]
Shipping 717 x 570 x 262 [28.2 x 22.4 x 10.3] 717 x 570 x 262 [28.2 x 22.4 x 10.3]
WEIGHT, kg [lb.]
Unit 32.0 [70.5] 42.4 [93.5]
Shipping 35.0 [77.2] 46.0 [101.4]
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 14
ENVIRONMENTAL REQUIREMENTS
Operating temperature 0°C to +40°C [+32°F to +104°F]; see Table 13 for operating temperature parameters
Storage temperatures -15°C to +50°C [+19°F to +104°F]
Relative humidity 0% to 95%, non-condensing
Operating elevation Up to 3,000 m [10,000 ft.]
Storage elevation 15,000 m [50,000 ft.] max.
AGENCY
S4K2U48BATC S4K2U96BATC
Model
<48 dBA max. @ 1 m [3 ft.] front & sides;
<48 dBA max. @ 1 m [3 ft.] rear
nd
Ed. = CISPR22 Class A
Model Number
Safety EC/EN/AS 62040-1-1:2008
nd
RFI/EMI IEC/EN/AS 62040-2 2
Surge immunity IEC62040-2 2
Ed. = CISPR22 Class A
nd
Ed.
Transportation ISTA Procedure 1A
44 | 9.0 Specications
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
Table 14: Battery Backup Times
Number of Batteries/Cabinets Load % of Capacity
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 cabinets
100% to 93% 93% to 86% 86% to 79%
Model Rating
1000 VA 2000 VA 3000 VA
Backup Time in Minutes
10% 91 73 77
20% 38 33 37
30% 31 21 21
40% 23 15 15
50% 17 11 11
60% 14 8 8
70% 11 6 6
80% 9 5 5
90% 8 4 4
100% 6 3 3
10% 214 166 182
20% 153 121 123
30% 124 79 79
40% 100 41 53
50% 79 38 46
60% 66 34 38
70% 41 30 31
80% 38 25 26
90% 36 21 21
100% 34 17 18
10% 337 306 311
20% 216 159 160
30% 166 133 134
40% 152 105 105
50% 136 81 81
60% 121 67 68
70% 104 40 52
80% 93 38 47
90% 79 36 43
100% 71 33 38
10% 480 331 335
20% 322 202 205
30% 219 157 157
40% 191 138 139
50% 161 120 120
60% 151 99 100
70% 140 80 81
80% 128 70 71
90% 112 60 62
100% 105 40 51
10% 480 346 480
20% 340 301 303
30% 316 186 187
40% 220 156 156
50% 198 141 141
60% 166 126 127
70% 158 107 108
80% 149 95 97
90% 141 79 81
100% 133 72 73
10.0 Warranty & Support
10.1 Warranty Information
Please see the “Terms & Conditions of Sale”.
10.2 Technical Support
Phone: (800) 377-4384 or (847) 268-6651
E-mail: solahd.technicalservices@emerson.com
Web site: www.solahd.com
S4K2U5C SERIES USER MANUAL | 45
SolaHD•1.800.377.4384(US)•1.847.268.6651(International)•www.solahd.com
P/n: A272-213 rev. 3 09/2012
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