Eltek Valere STS118 User manual

Static Transfer Switch
STS118
User Manual
Page 1 (24)
STATIC TRANSFER SWITCH
STS118
USER MANUAL
UM_STS118_E_R0.0
©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0

Static Transfer Switch
STS118
User Manual
Page 2 (24)
©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
Notes to this manual
ATTENTION! Read this manual carefully before installing and commissioning the specified module.
This manual is a part of the delivered module. Familiarity with the contents of this manual is required
for installing and operating the specified module.
The rules for prevention of accidents for the specific country and the general safety rules in accor-
dance with IEC 364 must be observed.
The function description in this manual corresponds to the date of publishing.
Technical changes and changes in form and content can be made at any time by the manufacturer
without notice. There are no obligations to update the manual continually.
The module is manufactured in accordance with applicable DIN and VDE standards such as VDE 0106
(part 100) and VDE 0100 (part 410). The CE marking on the module confirms compliance with EU stan-
dards 2006-95-EG (low voltage) and 2004-108-EG (electromagnetic compatibility) if the installation and
operation instructions are followed.
Supplier:
ELTEK VALERE DEUTSCHLAND GmbH
GB Industrial
Schillerstraße 16
D-32052 Herford
+ 49 (0) 5221 1708-210
FAX + 49 (0) 5221 1708-222
Email [email protected]
Internet http://www.eltekvalere.com
2009. ELTEK VALERE DEUTSCHLAND GmbH. All rights reserved.
Please note: Repetition, copying and /or taking possession of this operation and maintenance manual,
even in extracts, with electronic or mechanical means, requires the written prior permission of the
manufacturer.

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
The current revision status of this manual is the following:
Revision: 0.0
Date: 2009-07-02
Revision Description of change Writer Date
0.0 Preliminary first edition RTH 2009-07-02

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
Table of Contents
1. Safety Instructions and Waste Disposal Rules ......................................................................6
2. General Information ......................................................................................................................7
2.1 Example of use .........................................................................................................................................................7
2.2 Operating modes......................................................................................................................................................8
2.2.1 Inverter priority configuration.......................................................................................................................8
2.2.2 Mains priority configuration ..........................................................................................................................8
3. Type Range/ Main Data................................................................................................................8
3.1 Main output data......................................................................................................................................................8
3.2 Necessary equipment for STS118 assembly: ..................................................................................................9
3.3 Front view: control elements, indicators ...........................................................................................................9
3.4 Electrical connections.......................................................................................................................................... 10
3.4.1 Pin assignment of the rear side backplane connectors...................................................................... 11
3.4.2 Pin assignment of the rear side CAN-Bus connectors X22 & X23 (RJ11):...................................... 12
3.4.3 Pin assignment of the front side Ethernet connector (RJ45):........................................................... 12
3.5 Cooling/Air flow direction ................................................................................................................................... 13
3.6 Communication interfaces ................................................................................................................................. 13
3.6.1 CAN-Bus........................................................................................................................................................... 13
3.6.2 Ethernet (Net Connection).......................................................................................................................... 14
4. Handling ........................................................................................................................................ 15
4.1 Storage .................................................................................................................................................................... 15
4.2 Commissioning....................................................................................................................................................... 15
4.3 Operation................................................................................................................................................................. 15
4.3.1 LED Indications............................................................................................................................................... 16
4.3.2 Adjustment keys........................................................................................................................................... 16
4.3.3 LC-Display: Indication of measured values and alarm messages ..................................................... 17
5. Parameter adjustment / Menu structure............................................................................. 18
5.1 Adjustable Parameters (Customer menu) ...................................................................................................... 18
5.2 Structure of the customer menu...................................................................................................................... 19
6. Maintenance ................................................................................................................................2
1
7. Trouble shooting......................................................................................................................... 21
8. Technical specifications ........................................................................................................... 23
8.1 Dimensional drawings .......................................................................................................................................... 24

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
Index of Figures
Figure 1. Block diagram “Example of use” ....................................................................................................................7
Figure 2. Front view............................................................................................................................................................9
Figure 3. Backplane, shown from the rear side........................................................................................................ 10
Figure 4. Detail X10 & X15 (synchronous bus connectors) ................................................................................. 10
Figure 5. Rear side CAN-Bus connector ..................................................................................................................... 12
Figure 6. Front side Ethernet connector.................................................................................................................... 12
Figure 7. Module air flow ................................................................................................................................................ 13
Figure 8. Sample screenshot “Net Connection”....................................................................................................... 14
Figure 9. LC-Display: Indication of measured values .............................................................................................. 17
Figure 10. Structure of the customer menu............................................................................................................. 19
Figure 11. Continuation of the customer menu....................................................................................................... 20
Figure 12. Display “Alarm Messages”.......................................................................................................................... 21
Figure 13. Module dimensions ...................................................................................................................................... 24

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
1. Safety Instructions and Waste Disposal Rules
Warning!
Because several components of operating electrical modules are charged by dangerous voltage, the
improper handling of electrical modules may be the cause of accidents involving electrocution, injury,
or material damages.
Operation and maintenance of electrical modules must be performed by qualified skilled
personnel such as electricians in accordance with EN 50110-1 or IEC 60950.
Install the module only in areas with limited access to unskilled personnel.
Before starting work, the electrical module must be disconnected from mains. Make sure that
the module is earthed.
Do not touch connector pins as they can be charged with dangerous voltage up to 30 seconds
after disconnection.
Only spare parts approved by the manufacturer must be used.
All electric modules must be disposed of separate from domestic waste at collecting points that
have been set up by the government or municipal authority.
“Separate collection is the precondition to ensure specific treatment and recycling of WEEE and is
necessary to achieve the chosen level of protection of human health and the environment in the
Community.”
The above statement from EU directive 2002/96/EC applies to all electric modules installed within
EU countries.
In countries outside the EU, different rules may apply regarding waste disposal of electric modules.
For more information about waste disposal of your discarded equipment, contact your
ELTEK VALERE INDUSTRIAL partner.

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
2. General Information
The static transfer switch STS118 is designed for a nominal switching capacity of 18kVA and is
used for nearly interruption free switching (<4 ms) between two AC sources (usually inverter and
substitute-mains supply). It is intended for operation in combination with inverters of series
INV215/222. Consequently AC consumers can be driven nearly without interruption if one of the two
power sources fails. All operation and indication elements as well as an Ethernet connector are user-
friendly integrated in the front plate of the unit.
The STS118 is a hot plug-in module with rear side connectors and is designed to be mounted in an as-
sembly set sub rack (see section 3.2). A maximum of eight INV222 (two fully equipped AC power racks
ACR INV222-9.0) can be connected to the STS118.
2.1 Example of use
Static Bypass Switch
STS118
Figure 1. Block diagram “Example of use”

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
2.2 Operating modes
The static transfer switch STS is designed for the operating modes “inverter priority” and
“mains priority”. The consumer load is energized by the priority source if the operating system works
under fully functional conditions.
2.2.1 Inverter priority configuration
In the operating mode “inverter priority” the load is switched on inverters during normal operation.
This is the standard configuration (factory setting).
Source “Mains” only is required to energize the consumer load if source “Inverter” fails or is overloaded
(i. e. distortions by short circuit behaviour or overload).
The priority source is programmable via the service menu.
2.2.2 Mains priority configuration
In the operating mode “mains priority” the AC mains works as priority source and the inverter
(as “substitute mains”) as source 2.
3. Type Range/ Main Data
Type Designation Article Code Nominal
Input
Nominal Input
Frequency
Redundant Circuitry
Supply
STS118-230/230-
24V
601-180-411.00 230VAC 50 Hz/ 60Hz
(ad
j
ustable)
19-45VDC and from
both AC in
p
uts
STS118-230/230LV 601-180-511.00 230VAC 50 Hz/ 60Hz
(ad
j
ustable)
38-75VDC and from
both AC in
p
uts
STS118-230/230HV 601-180-711.00 230VAC 50 Hz/ 60Hz
(ad
j
ustable)
90-275VDC and from
both AC in
p
uts
3.1 Main output data
Nominal output voltage: 230VAC
Nominal output current: 78AAC
Nominal switching capacity: 18kVA
Output frequency: according to the input frequency
For more specific data, see section 8.

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.2 Necessary equipment for STS118 assembly:
Assembly set 19” sub rack 1U for one static transfer switch STS118 including a wired back-
plane): Material code= 602-118-011.00
3.3 Front view: control elements, indicators
Figure 2. Front view
The STS118 is equipped with:
One Ethernet connector 10/100MB (RJ45)
Four adjustment keys: Up, Down, ENT, ESC
Seven LED indicators: STANDBY, INVERTER, MAINS,
LOAD ON INVERTER, LOAD ON MAINS, SYNC, ALARM
(Collective failure)
One LC-Display (4 x 16 characters)
For more information about the control elements, LED indicators, LC-Display and front connector, see
the following sections.

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.4 Electrical connections
All electrical connectors such as AC inputs and outputs, DC supply, CAN-Bus, synchronous bus and signals are fitted on the rear side of the module. A sub rack
with backplane is necessary to connect the module to the system. The rear side connections of the backplane are shown in figure 3) and defined in the table
“Assignment of the rear side backplane connectors” on the next page.
Figure 3. Backplane, shown from the rear side
Figure 4. Detail X10 & X15 (synchronous bus connectors)
X14
X14
X13
X13
X12
X12
X11
X11
X10
X10
1
X9
X9
X8
X8
X7
X7
X6
X6
X5
X5
X4
X4
X3
X3
X2
X2
X1
X1
X23
X23
X22
X22
1
1
1
X15
X15
12
2
2
332
1

Static Transfer Switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.4.1 Pin assignment of the rear side backplane connectors
Connector Designation Connector
type
Recommended wire cross section, calculated
for full switching capacity (18kVA)
X1 &X9 PE MKDS 10 HV 10mm2 for each connector
X2 &X3 AC output to the load MKDS 10 HV 10mm2 for each connector
X4 &X5 AC input from invert-
ers
MKDS 10 HV 10mm2 for each connector
X6 Neutral (N) MKDS 10 HV 10mm2
X7 &X8 AC input from mains MKDS 10 HV 10mm2 for each connector
X10 &
X15
Two synchronous bus
connectors
IDC10, 10-pole 10-pole ribbon cable, one included in delivery
p
er one INV222 rack
1 - 4 Not used
5 + 6 SYNC-SIG
7 + 8 SYNC-STAT
9 + 10 SYNC-GND
X11 Emergency shut off MCV 1.5/2-G-
3.5
1 Emergency shut off 0.5mm2
2 GND 0.5mm2
X12 Relay “Common
Alarm”
MCV 1.5/2-G-
3.5
1 NC 0.5mm2
2 COM 0.5mm2
3 NO 0.5mm2
X13 Relay 2 MCV 1.5/2-G-
3.5
1 NC 0.5mm2
2 COM 0.5mm2
3 NO 0.5mm2
X14 DC input to STS
(redundant circuitry
supply*)
MSTBVA
2,5/2-G
1 DC minus (-) 0.75mm2
2 DC plus (+) 0.75mm2
*STS118HV: Vi = 91.8-275VDC ;STS118LV: Vi = 38-75VDC; STS118-24V: Vi = 19-45VDC
X22 &
X23
Two CAN-Bus con-
nectors
RJ11, 6-pole Cord Set

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.4.2 Pin assignment of the rear side CAN-Bus connectors X22 & X23 (RJ11):
Pin Signals CAN Designation
1 CAN_V+ DC-Supply +8...15V
2 CAN_V+ DC-Supply +8...15V
3 CAN_H Signal (high)
4 CAN_L Signal (low)
5 CAN_V- DC-Supply Ground
6 CAN_V- DC-Supply Ground
16
Figure 5. Rear side CAN-Bus connector
(socket outlet RJ11, 6-pole)
3.4.3 Pin assignment of the front side Ethernet connector (RJ45):
Pin Name Designation
1 TX+ Tranceive Data +
2 TX- Tranceive Data -
3 RX+ Receive Data +
4 n/c Not used
5 n/c Not used
6 RX- Receive Data -
7 n/c Not used
8 n/c Not used
Figure 6. Front side Ethernet connector
(socket outlet RJ45, 8-pole)

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.5 Cooling/Air flow direction
The unit is cooled with internal fans. The airflow is from the front to rear side. The fans are monitored
and speed controlled dependent on module temperature. To provide sufficient air flow, a minimum
space (see item “A” in figure 7) of 50mm is required between the unit and the rear cabinet wall as well
as an unobstructed supply of air to the front of the module.
Figure 7. Module air flow
3.6 Communication interfaces
3.6.1 CAN-Bus
The STS118 is equipped with a serial data interface in accordance with the Controller Area Network
(CAN) specification. The CAN-Bus connection is integrated in the rear side of the STS module.
Via CAN-Bus the communication of the STS118 with the connected inverters and a possibly
implemented UPC3 DC controller unit takes place.
The following information is available via the CAN:
Status information of the STS118:
Availability of the connected inverters
Availability of the substitute mains
Load on mains/inverter
Synchronization
Vbatt </>
Vout </>
Iout >
Output current of the STS
Battery voltage connected to the STS
Inverter and mains voltage
Inverter and mains frequency
STS module temperature

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
3.6.2 Ethernet (Net Connection)
Furthermore the STS118 is fitted with a front side Ethernet interface (10/100MB) for remote control
via HTTP (WEB server), SNMP, SMTP und SNTP.
The STS can be directly configured via PC. Furthermore, extensive remote control can be realized.
Figure 8. Sample screenshot “Net Connection”
REMARK: A manual for the Net Connection is separately available.

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
4. Handling
4.1 Storage
The STS must be stored in a dry, dust free environment with a storage temperature according to
specific data (see section 8).
4.2 Commissioning
Note: Before commissioning the module, make sure that the battery voltage for the redundant circuitry
supply of the STS corresponds to the specification as specified on the type plate.
1. Carefully unpack the unit
2. Put the unit into the provided slot of the STS118 sub rack.
3. Carefully slide in the unit until the module connector touched the backplane connector.
4. Increase the force until the unit fits in completely. Avoid using too much force. If the unit does not
fit in, begin again at step 2.
5. Secure the module using the captive screws provided with the module.
Caution: After switching off the module the internal capacitors are still fully charged. Do not touch
connector pins as they can still be charged with dangerous voltage after disconnection.
4.3 Operation
The operation of the unit takes place with keys located on the front side of the unit.
All main functional parameters and measured values are displayed on the front side LCD panel (text
indicator) as well as with LED indicators. The different functions are described in the following sections.

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
4.3.1 LED Indications
Functions of front panel LED indicators
LED Colour Main function Auxiliary function
green Unit is ready for operation
Inverter green Voltage and frequency of source
Inverter within permissible limit
Flashing when inverter overload
is detected
Mains green Voltage and frequency of source
Mains within permissible limit
Flashing when “Load on mains” is
activated (see menu 2)
Load on Inv. green Load feeding by source Inverter
Load on Mains green Load feeding by source Mains
Sync. green Inverters are synchronized to
mains phase and frequency
red
Collective Failure (the allocation
of the individual trouble codes is
programmable)
4.3.2 Adjustment keys
The adjustment takes place with the four front keys:
Front keys Function

during menu item selection: change to
previous item (parameter)
during adjustment mode: increase value

during menu item selection: change to next item (parameter)
during adjustment mode: decrease value
ENT
enter menu (long pressed)
enter submenu
save parameter and leave submenu
ESC
leave the menu without changing
enter error list

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STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
4.3.3 LC-Display: Indication of measured values and alarm messages
In its initial state, the display shows the measured voltage of the input sources (AC output voltage of
inverter, mains voltage) and the STS output current.
Pushing the keys and changes between different display topics.
Figure 9. LC-Display: Indication of measured values
The display [1] shows the initial state (basic display). The plain text of the basic display becomes visible
after a successful start-up procedure. As shown in figure 9., you can select the displays [1], [2], [3] and
[4] by pressing the keys or :
If no inverter is registered, display [4] is not available.
If exactly one inverter is registered, display [4] is visible without inverter number.
If more than one inverter is registered, it is possible to call the parameters (input current,
output current and status) of all connected inverters in succession by pressing “ENT”.
The inverter number is shown in the first line of the display. Press “ESC” to go one step back.
The display automatically will revert to display [1] if no key is pressed for a period of more than
30 seconds.
Display [5] “Alarm messages” indicates the current alarm status. It can be selected from display [1], [2]
and [3] by pressing “ESC”.
By pressing the keys or you can scroll through the list of alarm messages if more than three
entries are present there. The display “Alarm messages” can be quit by pressing “ESC” again.
Basically (factory setting) all individual failures according to “List of the selectable individual alarm
messages“, (see section 5.1) are switched “active” and therefore they are visible on the display in case
of failure. The alarm messages which shall not be visible on the display in case of failure are to be
switched “inactive” in the customer menu (see the diagram “customer menu”).

Static transfer switch
STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
5. Parameter adjustment / Menu structure
In the following sections, the adjustable parameters in the customer menu (available for each
customer) are described.
REMARK: The configuration of the system during commissioning takes place with the service menu 1
and 2 and the network menu. They are code protected to guard against illegal parameter changes.
The special documents only are available for qualified and skilled service personnel.
5.1 Adjustable Parameters (Customer menu)
The following parameters can be adjusted according to the table below:
Customer menu Functions Range Default value
INV-count Number of connected inverters 0- 16 0
INV-redundancy Number of redundant inverters 0-15 0
Time/date Set new time and date --- ---
Configuration CF
Selection (set active/inactive) of single alarm
messages for the collective failure (CF)
signalization (LED and relay)
All alarm
messages*All active
Delay LED CF LED time delay of the collective failure signal 1- 60 sec 30
Delay Relay CF Time delay of the collective failure relay output 1- 60 sec 30
LCD-contrast Contrast adjustment of the display 0- 100 100
LCD backlight Background illumination Not used On
Language Selection of the language
english, german,
polish, swedish,
italian
english
*The following table shows a list of the selectable individual alarm messages:
Alarm messages Meaning
Source Mains f. Mains voltage or frequency not Ok
Source INV fail INV voltage or frequency not Ok
Synchr. error Mains and INV voltage are not
h
Inverter fail. INV failure
INV redundancy INV failure
INV count crit. INV failure
STS overtemp STS over temperature
STS overload STS output current to high
INV overload Actual output current exceeds the combined INV power
INV red. overl. Actual output current exceeds the combined and not redundant INV power
DC-voltage low Battery voltage low
DC-voltage high Battery voltage high
fan error Internal fan error
Uout error Output voltage < 95% Vin (Mains/INV)
Ubatt< warning Battery voltage < warning level
Ubatt> warning Battery voltage > warning level

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STS118
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
5.2 Structure of the customer menu
The customer menu can be entered from the Basic display by pressing “ENT” for approx. three seconds
and then press “ENT” again.

For a list of all selectable
individual alarm messages for
the collective failure (CF)
signalization, see section 5.1
Figure 10. Structure of the customer menu

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STS118
User Manual
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©2009. ELTEK VALERE DEUTSCHLAND GmbH. UM_STS118_E_R0.0
Figure 11. Continuation of the customer menu
The final display shows the currently used Firmware version.