Eaton STS 16 User manual

Installation and user
manual
STS
SourceTransfer
Switch
www.eaton.com
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5102761700/AI
English .......................... 1
Français ....................... 15
Deutsch ........................ 29
Italiano ......................... 43
Español ........................ 57
Nederlands .................. 71

51027617EN/AI - Page 1
Contents
All EATON products are protected by patents. They implement original technology which is not available to other
competitors of EATON.
To take evolving standards and technology into account, the technical characteristics contained in this document are
not binding unless confirmed by EATON.
This document may be reproduced only with the consent of EATON. Authorised copies must be marked "EATON STS
installation and user manual nr 5102761700".
Warning .................................................................................................................2
Presentation
Contents of package ......................................................................................3
Storage ...........................................................................................................3
Recycling of packing ......................................................................................3
Function .........................................................................................................4
Characteristics ..............................................................................................4
Overall views .................................................................................................5
Installation
Setting the input voltage ................................................................................7
Installation ......................................................................................................8
Connections ..................................................................................................9
Communication ............................................................................................10
Operation ...........................................................................................................12
Troubleshooting ..............................................................................................13
Appendices
Glossary .......................................................................................................14
Index ............................................................................................................14

Page 2 - 51027617EN/AI
Warning
Thank you for selecting an EATON
product to protect your equipment.
You have chosen a STS to ensure the
high availability of your IT systems,
i-e more than 1500 transferts between
the preferred source and the alternate
source.
This STS benefits from a 2 year warranty.
This warranty is valid if you comply with
the following specifications (*) :
Only the computational load can bez
connected to the STS, all the others
types of loads (resistive, inductive or
crest factor >3:1 ) are not covered by the
warranty
The length of the cable between the
z
source (UPS or transformer) and the
STS must be at minimum 50 m, with a
maximum cross-section of 6 mm².
For that reason the Canalis busbar
type does not comply with the STS
specifications.
The 2 sources must be synchronized
z
and you should prevent the phase/neutral
inversion. A desynchronisation (signaled
by the "Site wiring fault" indication LED)
betweeen the two phases of the sources
is a cause of premature ageing of the
STS components.
(*) Don't concern sources and UPS below
6 KVA.

51027617EN/AI - Page 3
Contents of package
The STS package contains the following
(see figure 1):
STS module,z
installation and user manual (thisz
document),
four adhesive footpads,
z
four M6 bolts with four cage nuts,z
two communications cables,z
two securing systems for equipmentz
power cords.
Storage
If the STS module is stored prior to
installation, it should remain in the
original packing in a dry place (storage
temperature range: -40 °C to +70 °C).
Recycling of packing
Packing materials must be disposed of
in compliance with applicable laws and
regulations.
Presentation
Fig. 1
www.eaton.com

Page 4 - 51027617EN/AI
Function
EATON developed STS to guarantee the
uninterrupted operation of your sensitive
equipment. The STS source transfer
switch is a simple and effective solution
to manage the redundancy provided by
two independent power sources.
STS handles the automatic or manual
transfer of your loads between two
independent power sources without
interrupting the supply of power (< 6
milliseconds). Either of the two sources
may be designated as the preferred
source with the other becoming the
alternate source. In the event of a
failure, transfer from one to the other is
automatic and instantaneous.
Automatic transfer to the alternate
source takes place if the voltage of the
preferred source goes outside a tolerance
of 12 % above or below the nominal
value. Return to the preferred source
is automatic when the voltage returns
within the ±12 % tolerance range.
To provide a maximum level of
protection for the connected sensitive
equipment, both power sources should
be on-line type UPSs. However, the STS
module can also be supplied by one UPS
and another type of source, or by two
non-UPS sources providing a sinusoidal
output (AC system, engine generator set,
etc.).
Presentation
Characteristics
The STS module has the following
characteristics:
208 / 220 / 230 / 240 V versions (inputz
voltage): STS 16,
120 V version (input voltage):
z
STS 1400,
input current: 16 A (
zSTS 16), 12 A (STS
1400),
protection by thermal circuit breakers
z
(16 A or 12 A depending on the version),
threshold before transfer from
z
preferred to alternate source: ±12 %,
maximum operating temperature:
z
35 °C,
dimensions: 1U x 19 inches (44.45 mm
z
x 482.6 mm);
weight: 5 kg.
z

51027617EN/AI - Page 5
Overall views
Figure 2 shows in detail the front and
rear panels of the various STS versions.
Key to figure 2:
1voltage indication LEDs for the two
power sources S1 and S2:
green LED: voltage OK, within tolerances,
red LED: voltage NOK, outside ±12 %
tolerances,
2button used to select the preferred
source:
: source S1 is the preferred source,
: source S2 is the preferred source,
3status LEDs for the source currently
supplying power:
OFF: source not used.
green: preferred source supplying power,
yellow: alternate source supplying
power,
Note: only one of these LEDs is ON at a
time,
4red LED indicating a STS fault,
5buzzer OFF pushbutton,
6buzzer,
7connection cables between the
module and the two power sources S1
and S2,
8connection sockets for the sensitive
equipment.
STS 16
z: 6 IEC-type sockets 10 A and 1
IEC-type socket 16 A,
STS 1400
z: 6 NEMA-type sockets,
9output protection circuit breakers on
STS 16,
10 SUB-D 9-pin connector, for
communication (UPS S1 type) from
source 1,
11 SUB-D 9-pin connector, for
communication (UPS S2 type) from
source 2,
12 SUB-D 9-pin connector, for outgoing
communication (Basic type),
13 SUB-D 9-pin connector, for outgoing
communication (STS COM type, i.e. dry
contacts),
14 STS input voltage selector (European
versions),
15 protection circuit breakers on the
inputs from the two sources,
16 "sources out of synchronisation"
indication LED.
Presentation

Page 6 - 51027617EN/AI
Fig. 2 : front and rear panels of the STS modules
Presentation

51027617EN/AI - Page 7
Installation
Setting the input voltage
Before making any connections, make
sure that the sources selected to
supply the STS are compatible with its
characteristics.
STS 16: 208 V - 220 V - 230 V - 240 V.
STS 1400: 120 V.
The factory input voltage setting for STS
16 is 230 V. If necessary, set the voltage
to another value (208 V, 220 V, 230 V or
240 V) using the voltage selector 14 (see
figure 3).
In the event of an electrical fault, a circuit
breaker on each of the source inputs
protects the STS module.
The voltage selector 14 may be
used only when the STS module
is de-energized, i.e. power
cables 7not connected to the
sources.
Once the module has been correctly set
up, connect the two power cables 7to
the two sources.
To facilitate the upstream connection
from the STS 16 to a FR or Schuko
socket, EATON provides, as option, a
2 power cable kit IEC C 19/FR-Schuko
male inlet, 1,90 m length whose part
number is 66397.
Fig. 3
230 V input
voltage
240 V input
voltage
208 V input
voltage
220 V input
voltage
Enhanced mode
for line interactive
UPS compatibility

Page 8 - 51027617EN/AI
Installation
On a flat surface
Figure 5 shows how to attach the
adhesive footpads under the STS module
for installation on a flat surface.
Fig. 5
Fig. 4
Rack mounting
Figure 4 shows how to install the STS
module in a 19-inch bay using the four
M6 bolts and the cage nuts positioned
at the desired height in the cabinet
uprights.
The module is not as wide as the bay
and therefore does not obstruct the flow
of air.
If the temperature inside the
bay can rise above 35 °C,
ventilation is required. If this is
not possible, the STS module
should be installed outside the
bay.