STATIC TRANSFER SWITCH

50

– 100 – 150 – 200 – 250 – 300 – 400 – 600A

USER MANUAL

CONTENTS

OVERVIEW ________________________________________________________________________ 1

INFORM STS 1

DESCRIPTION OF THE FUNCTIONS OF THE INFORM STS

BLOCK DIAGRAM OF THE STS

1

4

MANUAL TRANSFER SWITCH

SAFETY WARNINGS

FRONT VIEWS OF THE STS

VIEW OF THE CONTROL PANEL

5

6

7

8

INSTALLATION ____________________________________________________________________ 9

PREPARATION FOR INSTALLATION

PRELIMINARY INFORMATION

9

9

ELECTROMAGNETIC COMPATIBILITY

INSTALLATION ENVIRONMENT

REMOVING THE STS FROM PALLET

PRELIMINARY CHECK OF CONTENTS

9

9

9

10

INSTALLING THE STS 10

ELECTRICAL CONNECTIONS ________________________________________________________ 11

DIAGRAMS OF CONNECTION TO THE ELECTRICAL SYSTEM 11

PROTECTIONS INSIDE THE STS

CABLE SIZES

CONNECTIONS

WIRING PROCEDURE

11

12

12

16

PROTECTIVE EARTH

R.E.P.O (REMOTE EMERGENCY POWER OFF)

16

16

USE ______________________________________________________________________________ 17

DESCRIPTION

PRELIMINARY OPERATIONS

POWERING ON FOR THE FIRST TIME

Switching On (Normal Operation) The STS From Off Position

17

17

17

18

Switching To Maintenance Bypass Position From Normal (automatic) Operation

Switching From Maintenance Bypass To Normal Operation

Switching Off The STS During Normal Operation

DISPLAY

ALPHANUMERIC LCD DISPLAY, MIMIC DIAGRAM, KEY SYMBOLS

DISPLAY MENUS

MAIN MENU

MEASURES MENU

COMMAND MENU

ALARMS MENU

OPTIONS MENU

TIME MENU

INFORMATION MENU

ADJUST MENU

SERVICE PASSWORD

USER PASSWORD

ALARM MESSAGES

INPUT SOURCE ALARM DESCRIPTIONS

TRANSFER METHODS

OPTIONAL EXTERNAL POWER INPUT

30

31

32

35

COMMUNICATION INTERFACE AND REMOTE MANAGEMENT

OPTIONAL TCP/IP ADAPTOR

35

37

TECHNICAL SPECIFICATIONS _______________________________________________________ 38

25

26

27

29

29

29

29

30

19

20

21

22

22

23

23

24

MECHANICAL CHARACTERISTICS 41

MAINTENANCE AND TROUBLESHOOTING _____________________________________________ 42

TCP/IP ADAPTOR SETUP____________________________________________________________43

OVERVIEW

INFORM STS

Thank you for choosing INFORM STS as your equipment protector.

It includes many features to protect your critical equipments.

Power ranges according to models

4 pole model

STS450

3 pole model

STS350

Output current per phase

50 amperes

STS4100

STS4150

STS4200

STS3100

STS3150

STS3200

100 amperes

150 amperes

200 amperes

STS4250

STS3250

250 amperes

STS4300

STS3300

300 amperes

STS4400

STS3400

400 amperes

STS4600

STS3600

600 amperes

This unit supplies continuous power to critical loads from 2 separate AC supplies. It monitors 2 input sources, if one of the input sources fails, it transfers the load to the other input source automatically. The user can also perform transfer from one source to another using the manual transfer switch.

The main functions of the STS unit are as follows :



Increased power quality



Increased noise reduction



Power blackout protection



Power redundancy



Automatic static switching



Remote monitoring of input power sources



Easy static and mechanical transfer between separate input sources



Remote management of power events



Power event logging



Redundancy

Therefore inclusion of INFORM Static Transfer Switches (STS) in an energy distribution system provides secure protection against any possible faults in the AC power system. STS permits switching between two independent

AC power supplies (SOURCE 1 and SOURCE 2) without shutting down the critical load connected to its output.

DESCRIPTION OF THE FUNCTIONS OF THE INFORM STS

INFORM STS is a microprocessor controlled transfer switch, designed for automatic and manual switching between two AC power sources, with interruption to the load of less than 2 msecs with synchronized sources and of less than 12 msecs for unsynchronized sources.

STS utilizes SCRs connected in opposite parallel pairs (six pairs for 6 pole models ,eight pairs for 4 pole models) . Three or four pairs of SCRs are used to connect the AC load to the power supply input referred to as

“PREFERRED”, under normal conditions. The other three (of four) pairs of SCRs are on standby to transfer the load to the other power supply input referred to as “ALTERNATE” in case of a failure of the “PREFERRED” input supply.

Source 1 and Source 2 supply inputs should come from two different AC sources with nominally identical voltages, phases and frequencies. The aim of the STS is uninterrupted transfer from one AC power supply to the other, in case of a fault in the “PREFERRED” supply.

Before and during transfer from one source to the other, the operating conditions of the SCRs are carefully monitored to prevent crosscurrents between two sources. The break-before-make technique makes healthy and uninterrupted transfers possible.

- 1 -

During normal operation, “PREFERRED” network supplies the load when both inputs are available. Selection of the “PREFERRED” network, automatic re-transfer, retransfer delay, overload behavior of STS, alarm hold time, nonsynchronized transfer behavior, overload and transfer inhibit reset modes may be set by the user on the control panel of the unit.

Permitted voltage, phase difference and frequency tolerance are also adjustable by the service personnel on the control panel.

Basic Features:



Easy monitoring all parameters on LCD display



Fast microcontroller (32 mips)



Advanced RS232 communication features ,optional TCP/IP connection



DRY contact alarm interface



Password protected login system from remote site (timed Access)



2 redundant power supplies for electronic boards (hot swappable)



Easy front access to all components inside of the STS



Second protection cover on live circuits which prevents electrical shock



Input sources protected by fuses



3 positioned Maintenance bypass switch which prevents cross currents between input sources



User adjustable parameters by entering a password.



Built in real time clock.



Alarm history (with their date and time)



Automatic transfer test from a remote site or using front panel



Front panel Lamp test



External emergency shutdown (EPO) input





All boards are supplied by two separate power supplies.

Hot plug construction during maintenance bypass



High current output tolerant up to 1000%



Adjustable long dead time during non synchron transfer up to 3 seconds





SCR fault sense circuit

Cabinet inside temperature sensor



Fast voltage black-out circuit



Input phase balance and phase sequence fault detect circuit



Output alternance balance sense circuit



Adjustable Input source frequency lower/upper limits



Additional analog synchronous sense circuit

Control Circuit locations

The control circuits are located in a closed cabinet which is not directly accessible by the user.

Redundant power supply circuit

2 power supplies are installed inside the STS. They are connected to all boards separately. So the construction is hot swappable. During operation, service personnel can replace one of the power supplies without effecting the operation of the STS.

Power connections and terminals

All input and output power connections are located at the bottom of STS. At the bottom of the STS separate panels let to the cables for easy installation.

Easy front Access to all components

All components are installed onto the front side of STS. During servicing, there is no need to remove any side or rear panel of the STS.

Quick Access to static bypass switch

User can perform static transfer from remote panel but this will take a long time to surf on menu functions. A separate static bypass switch is installed inside the STS and the priority of this switch is higher than the front panel controls. This means that, it the user uses the manual bypass switch, all panel bypass commands will be disabled.

- 2 -

Protections

-

Two input sources are connected to STS by MCCB’s (S1 and S2)

- Suitable rating varistors protect the control circuits from high voltage transients.

- All power supply inputs are fuse protected

On SCR’s heat-sink, there is a thermal contact to warn the user in case of excessive heat-sink temperature.

Protection shield prevents direct touch to live parts, inside the unit.

Cooling

The cooling fans are installed on to the top side of STS .

Figure

– 1 Cooling outlets of the STS

- 3 -

BLOCK DIAGRAM OF THE STS

S1

S2

S4-1

S4-2

Source 1 input circuit breaker (MCCB)

Source 2 input circuit breaker (MCCB)

Figure

– 2 STS Block diagram

This switch is thermal and magnetic protected type and shutdowns source 1 input

This switch is thermal and magnetic protected type and shutdowns source 1 input

Mechanical bypass switch to source 1

Mechanical bypass switch to source 2

During maintenance these contacts connect Source 1 input to STS output directly

During maintenance these contacts connect Source 2 input to STS output directly

S3

SS1

SS2

Output switch

Static transfer SCR circuit to source 1

Static transfer SCR circuit to source 2

This switch shutdowns the output voltage of STS . During maintenance the position of this switch must be OFF.

This static switch contains SCRS and snubber components and driven by a driver circuit which is controlled by the microprocessor.

This static switch contains SCRS and snubber components and driven by a driver circuit which is controlled by the microprocessor.

NOTE : Figure 2 shows only 1 phase of 3 phase construction. The other phases are not shown.

The maintenance bypass switch is a 3 pole change-over switch

1 Maintenance bypass to source1

0 Automatic operation

2 Maintenance bypass to source2

Source 1 and Source 2 input circuit breakers are MCCB’s with thermal overload and magnetic short circuit releases.

A Manual Static Bypass Switch is also available for easy load transfer.

- 4 -

MANUAL TRANSFER SWITCH

Manual transfer switch is located on back front panel and user transfers the load to input source1 or source2 rapidly. During normal operation this switch must be at AUTO position.

Figure

– 3 Manuel transfer switch location

- 5 -

SAFETY WARNINGS

IMPORTANT NOTICES

1. This Manual must be carefully read before applying any power to the STS unit.

2. All warnings in the manual should be adhered to.

3. All operating instructions should be followed.

4. The unit should be supplied by a grounded outlet. Do not operate the unit without ground source.

5. Power input cords of the STS should be routed carefully so that they are not to be walked on.

6. Please save this manual.

7. Please save or recycle the packaging materials.

WARNING !!!



Do not apply electrical power to the STS equipment before arrival of authorized service personnel.



Installation and commissioning of STS must be performed by a qualified technician.



Adequate protection against input over currents must be provided, considering the nominal current rating of the STS.



Do not insert any object into ventilation holes or other openings.



To reduce the risk of fire or electric shock, install the unit in temperature and humidity controlled indoor area free of flammable and corrosive substances.



The unit have two power inputs ,if one of the supplies is connected risk of electric shock is valid.



The unit is powered by more than one power mains. When one of the incoming power sources is active, the unit contains a dangerous level of voltage, even when it is in “MAINTENANCE BYPASS” position

WARNING !!!



Since it is a high voltage equipment, INFORM STS contains dangerously high voltages. The risk of

contact with these voltages is minimized using a lockable hinged door and internal safety shields in accordance with IP20 standards.



All maintenance and installation procedures requiring access to the inside of the device must be

exclusively performed by a trained personnel.



INFORM STS DOES NOT HAVE AUTOMATIC PROTECTION AGAINST VOLTAGE RETURNING TO THE

INPUT. POWER SWITCHES OR FUSES OUTSIDE THE STS MAY HAVE VOLTAGES ON THEIR

CONNECTION TERMINALS EVEN WHEN THEY ARE TURNED OFF.



SERVICE PERSONNAL MUST INSULATE THE STS (BY TURNING OF ITS INPUT SWITCHES S1 AND

S2) BEFORE WORKING ON THESE EQUIPMENT.

CAUTION !!!



Installation and commissioning of this device must be performed by qualified service personnel

trained and authorized by the manufacturer (or distributor)



Risk of electric shock, do not remove cover. No user serviceable parts inside, refer servicing to

qualified service personnel.



Risk of electric shock, hazardous live parts inside .

- 6 -

FRONT VIEWS OF THE STS

Interior front view

S6

Manual transfer

Switch

RS232

Port

S1

Source 1

I/P SW

figure - 4

- 7 -

Dry contact outputs

EPO Input

S3

Output

Switch

S2

Source 2

I/P SW

S4

Maintenance

Bypass

SW

VIEW OF THE CONTROL PANEL

On the front panel of STS there are LEDs, control buttons and a two line alphanumeric LCD display. These components interact with each other during STS operation. Buttons change menus and submenus on LCD display. LEDs show the switching position of the STS on a mimic diagram.

figure

– 5 STS front panel

1

2

SW1

SW2

Source 1 priority lamp

Source 2 priority lamp

Source 1 input monitor lamp

Source 2 input monitor lamp

On : source 1 is preferred source

Off : source 1 is alternate source

On : source 2 is preferred source

Off : source 2 is alternate source

On: source 1 input is OK

Off : source 1 input failed

On: source 2 input is OK

Off : source 2 input failed

SS1

SS2

SW3

S1 static switch on

Source 2 static switch on lamp

S6 static switch on

Output monitor lamp

Off : SS1 SCR group open

On: SS2 SCR group fired

Off : SS2 SCR group open

On : output normal

Off : output switch off

Flash : output voltage inhibit

Flash : previously an alarm occurred

Alarm monitoring lamp

Down button

Moves menu item to 1 level down

Off : there is no alarm on STS

Enter button

Validates the adjusted data or OK confirmation

(+) button

Increases the current data

Decreases the current data

(-) button

- 8 -

INSTALLATION

ALL THE OPERATIONS DESCRIBED IN THIS SECTION MUST BE CARRIED OUT EXCLUSIVELY BY

QUALIFIED STAFF.

The company may no be held liable for any damage caused by incorrect connections or by operations that are not described in this manual.

STORAGE OF THE STS

The storage area must have the following characteristics

Temperature : -10 to +50 C

Relative humidity : 95% max.

PREPARATION FOR INSTALLATION

PRELIMINARY INFORMATION

Model

STS

X50

50

STS

X100

100

STS

X150

150

STS

X200

200

STS

X250

250

STS

X300

300 Nominal current

Operating temperature

Non operating temper.

Max. relative humidity

Max. altitude

Dimensions

WxDxH

Weight(kg) 3Poles

4Poles

Protection level

Cable input

Communication

Flying transfer

130

160

145

175

90% (non-condensing) during operation

685x530x1500 mm

0

– 40 C

-10 to + 50 C

1000 m at nominal current rating

685x580x1770 mm

165

190

195

205

205

235

IP20

From base / on front

230

240

RS232 standard - TCP/IP option

Available - Standard

LCD panel and mimic

Backfeed protection

Software management

Available - Standard

Available - Standard

Available - Standard

DRY contact outputs

Available - Standard

REPO input Available

– Standard ( NO)

<X> letter on table shows 3 pole or 4 pole model options ( 3 = 3 pole , 4 = 4 pole )

STS

X400

400

240

255

STS

X600

600

915x735x

1905 mm

340

375

ELECTROMAGNETIC COMPATIBILITY

This static transfer switch (STS) conforms to the class C2 specifications (in accordance with the provisions laid down by the EN62040-2 standard: STS

– EMC requirement). In the home environment ,it may cause radio interference. The user may have to take supplementary measures.

This product is designed for professional use in industrial and commercial environments . Connections to the

RS232 connectors should be made with the cables provided or ,in any case, with shielded cables less than 3 meters long.

- 9 -

INSTALLATION ENVIRONMENT

When choosing the site in which to install the STS , the following points should be taken into consideration :



Avoid dusty environments



Check that the floor is level and capable of withstanding the weight of the STS



Avoid cramped environments that could impede the normal maintenance activities



The relative humidity should not exceed 90%, non-condensing.



Check that the ambient temperature, with the STS running, remains between 0 and 40 C



Avoid installing the equipment in places exposed to the direct sunlight and hot air.

REMOVING THE STS FROM PALLET

The STS is packed and enclosed in a structural cardboard carton to protect it from damage.

1. Inspect for damage that may have occurred during the shipment If any damage is noted, call the shipper immediately and retain the shipping carton and the STS.

2. Carefully open the carton and take the STS out.

Retain the carton and packing material for possible future use

PRELIMINARY CHECK OF CONTENTS

Having opened the package ,start by checking the contents

-User manual

-CC05 coded serial RS232 connection cable

-STS manager software and user manual CD

-Guarantee document

INSTALLING THE STS

When installing the equipment the following points should be considered:



The air outlets of the STS is on the top ,cause of this do not prevent air ventilation from the top side.



No objects should be left on its top surface



Sufficient space should be left in front of the equipment for it to be turned on/off and maintenance operations to be performed on it (>1.5 m)



Keep out of your equipment from the explosive and flammable items

- 10 -

ELECTRICAL CONNECTIONS

DIAGRAMS OF CONNECTION TO THE ELECTRICAL SYSTEM

WARNING: a 4-wire three-phase distribution system is required for three-phase input and output connections.

The standard version of the STS (3 pole) switches only 3 phases neutral is connected to the output directly. 3phase power line + neutral + protective earth (PE), in compliance with the IEC 60364-3 specifications.

Figure

– 6 3 pole standard STS input and output block diagram

PROTECTIONS INSIDE THE STS

SHORT CIRCUIT

In the event of a fault on the load , in order to protect itself and the alternate source the STS inhibits the output voltage. During short circuit event on the load, the connected source to load will be overloaded and the voltage of this input source will be go down, at this point STS monitors the output current and if current is 200% of nominal output current , if the input source phase voltages is lower than allowed limit at the same time it decides that short circuit event occurred at the output of the STS.

At the other hand during over current status , if the input MCCB trips STS decides that short circuit event occurred at the output of the STS.

OVERLOAD

Electronic overload protection system is used inside of the STS ,this protection system can be enabled or disable by the user as an option.

BACKFEED

The STS have electronic protection system against backfeed from any input source ,if any backfeed current is sensed the related input source input MCCB trips.

FUSES

There is no any replacable fuses inside of the

STS ,only input MCCB’s protect against overcurrents.

- 11 -

CABLE SIZES

The input/output cables can be sized to suit the STS rating according to the table below

4 pole

STS450

STS4100

STS4150

STS4200

STS4250

STS4300

STS4400

STS4600

3 pole

STS350

STS3100

STS3150

STS3200

STS3250

STS3300

STS3400

STS3600

Input / output

25 mm

35 mm

50 mm

70 mm

2

2

2

2

95 mm

2

120 mm

2

150 mm

185 mm

2

2

Neutral

35 mm

50 mm

70 mm

95 mm

2

2

2

2

120 mm

2

150 mm

2

185 mm

2

240 mm

2

Earth

16 mm

16 mm

25 mm

35 mm

2

2

2

2

50 mm

70 mm

2

2

70 mm

95 mm

2

2

Cable type

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

3 phase+1 neutral+earth

CONNECTIONS

INFORM STS Series Static Transfer Switches run only on 3-Phase AC power supplies with a NEUTRAL line.

The STS unit must be grounded in accordance with electrical regulations

Before making power connections to the unit, ensure that all the incoming power sources are de-energized and insulated

Cables can enter the INFORM STS from below, through the base panel of the cabinet. Top entry is also possible by removing the cover panel on the top of the STS revealing the cables entry hole.

The connections of the STS should be supplied by grounded outlets. Cables enter the STS modules via entry panels in the base of cabinet. All control cables should be screened and run in a separate trunking to the power cables.

- 12 -

3 POLE STS POWER CONNECTIONS

Input and output terminals of the 3 pole STS are shown in the following figure

figure - 7 Connection terminals of 3 pole STS

figure

– 8 3 Pole STS cable connections

- 13 -

4 POLE STS POWER CONNECTIONS

4 pole type STS units connects load output neutral to the current used source’s neutral ,the neutral of the other source is isolated from output neutral.

Figure

– 9-1 Connection terminals of 4 pole STS 50 – 100 – 200 – 250 – 300 – 400A

Figure

– 9-2 Connection terminals of 4 pole STS 600A

Figure

– 10-1 Input and output cable connections of 4 pole STS50 – 100 – 200 – 250 – 300 – 400A

- 14 -

Figure

– 10-2 Input and output cable connections of 4 pole STS 600A

- 15 -

ALARM RELAY CONNECTIONS

Figure - 11 Alarm Relay Contacts and REPO Input Terminals

Relay Function

RL1

Load is connected to alternate input source

RL2

RL3

Preferred source indicator relay

Output Inhibit relay

RL4

RL5

RL6

RL7

Summary alarm relay

Manual or static transfer relay

S1 backfeed trip ( 1 second active)

S2 backfeed trip ( 1 second active)

REPO input is NO type interface (normally open) ,if REPO input terminals shorted to each other STS applies

REPO shutdown procedure.

EXTERNAL REPO BUTTON

figure

– 12 Repo input connection

Repo input trips short circuit there is no need to lock REPO signal externally.

- 16 -

WIRING PROCEDURE

1.

Open the STS cabinet front door and remove the metal guard on the lower side to permit access to the connection terminals and busbars (neutral and earth). Before connecting any power cables, please ensure that all the circuit breakers on the STS are in “OFF” position. (S1, S2, S3 and S4)

SOURCE 1 Input Power Connections

2.

Connect the SOURCE 1 AC power cables to the terminals U1-V1-W1 of the STS (Figure 7,8,9,10) and tighten the connections properly.

The neutral cable must be connected to the copper busbar identified as “NEUTRAL”.

CHECK FOR CORRECT PHASE ROTATION

SOURCE 2 Input Power Connections

3.

Connect the SOURCE 2 AC power cables to the terminals U2-V2-W2 of the STS (Figure 7,8,9,10) and tighten the connections properly.

The neutral cable must be connected to the copper busbar identified as “NEUTRAL”.

CHECK FOR CORRECT PHASE ROTATION

Output Connections

4.

Connect the output cables to the terminals (U-V-W) of the STS (Figure 7,8,9,10) and tighten the connections properly.

The output neutral cable must also be connected to the copper busbar identified as “NEUTRAL”.

CHECK THAT PHASES ARE CONNECTED IN THE RIGHT ORDER.

CHECK AGAIN ! that U1-U2, V1-V2 and W1-W2 are the corresponding phases of the two separate AC input sources respectively.

5.

Also proper control and signal wire connections (Alarm relays, EPO etc.) should be made through the screw terminal block shown in figure 11.

Note : These auxiliary cables must be shielded and double insulated.

(Recommended cross-section 1mm

2

)

6.

Reassemble the metal guard removed previously.

PROTECTIVE EARTH

The protective earth cable must be connected to the earth BUS BAR and bonded to each cabinets in the system and also the earthing and neutral bonding arrangements must be in accordance with the local laws. Proper grounding considerably reduces problems in systems caused by electromagnetic interference.

ATTENTION!!! Failure to follow adequate earthing procedures can result in electric shock hazard to personnel, or the risk of fire

REMOTE EMERGENCY POWER OFF

This isolated input is used to turn off the STS remotely in case of emergency.

The STS is supplied from the factor y with the “Remote Emergency Power Off ” (R.E.P.O.) terminals opencircuited ( see “View of the STS connections”) if two (NO) terminals are shorted to each other STS shutdown the output voltage.

In case of emergency ,by activating the stop device STS enters to stand-by mode and powers off the load completely.

The R.E.P.O. circuit is self-powered ,no external power supply voltage is therefore required. If R.E.P.0. switch pressed (at least 1 second) STS trips the signal.

- 17 -

USE

DESCRIPTION

The purpose of the STS is to select one of two input power lines which is in tolerant with predefined limits.

Users must decide that one of the input sources must have priority (preferred source) the other source is alternate source. So the STS tries to stay at priority (preferred) source if this source in tolerant with predefined values, if this source out of tolerant and the alternate source is in tolerant STS transfers the load to alternate source. Always STS checks priority (preferred) source if it is in tolerant retransfers the load to priority (preferred) source.

So before use the STS we must decide that which source is main (preferred) and which source is spare

(alternate).

IMPORTANT : Our STS are designed and produced for long life even under severest conditions. Remember however that they are electrical power equipment items and as such are in need of periodic checks. Besides, some components have a life cycle of their own and must therefore be checked at regular intervals and may need to be replaced, where due to the conditions: in particular fans and some electrolytic capacitors.

It is recommended to implement a preventive maintenance program, using manufacturer authorized and trained service personnel.

Our Technical Servicing department is at your disposal to discuss the different personalized preventive maintenance options with you.

PRELIMINARY OPERATIONS



Visual check of the connections

Check that all the connections have been made strictly following the indications given in the

“Connections” paragraph.



Check that the following switch positions

S1

– input 1 MCCB 0 position (off)

S2

– input 2 MCCB 0 position (off)

S3

– output switch 0 position (off)

S4

– maintenance bypass switch 0 position (center)

Manual transfer switch auto position (center)

At this point there is no output voltage at the STS output terminals

POWERING ON FOR THE FIRST TIME



Turn on input 1 power at external input power distribution box (apply power to input 1 terminals) . Measure the voltages on terminals. (according to your local electricity nominal’s)

Phase to phase 400 volts AC ,Phase to neutral 230 volts AC.



Turn on input 2 power at external input power distribution box (apply power to input 2 terminals) . Measure the voltages on terminals. (according to your local electricity nomina l’s)

Phase to phase 400 volts AC ,Phase to neutral 230 volts AC.



Optional : If sources are synchronous to each other, Check that the phase sequence is matched between two input sources (method: measure L1 phase to phase voltage between two sources, repeat this measurement for L2 and L3 phases if the measured AC voltages is minimum the phases of two input sources are matched.)



Turn on S1 (1 position) wait and see the STS control panel activated and shows some messages (source 2

BAD ,output switch off messages are normal)



Turn on S2 (1 position) wait and see only output switch off message is showed on the control panel.



At this point according to your application you must select some user options from OPTIONS MENU of the control panel. You need password to ch ange options. The factory default password is “0000” 4 zeros ,you can change the factory password after you logged in.(STS front panel functions)



After you setup some options you can turn on S3 output switch (1 position)



See that there is no alarm message or alarm sound on the STS

- 18 -

Switching On (Normal Operation) The STS From Off Position

1.

Ensure again that the Maintenance Bypass Switch (S4) is in “0” position and it is locked for safety.

1) Ensure that maintenance bypass switch (S4) is in 0 position (center)

2) Turn on input switches (1 position) S1 and S2.

The STS control circuits will be energized and will start functioning.

3) Select your “PREFERRED” source. (Default factory setting is Source 1). You can change your selection using the SETTINGS MENU

5) Then turn on the output switch S3, to apply power to the load connected to the output of the STS

4) Check from the mimic diagram on the control panel, that the static switch of the preferred source is turned on (either SS1 or SS2).

6) See there is no alarm on LCD display

7) STS unit is now ready to use

- 19 -

Switching To Maintenance Bypass Position From Normal (automatic) Operation

1) Select the input source which is going to supply the load during maintenance, and turn the manual

XFER switch S6 to this selected source (either

Source 1 or Source 2)

2) Follow on the mimic diagram that the load is switched to the source selected by the manual

XFER switch S6

3) Then turn the Maintenance Bypass Switch (S4) to the selected source for maintenance. See the maintenance bypass message on the LCD panel

4) Turn off the output switch S3. This switch disconnects the static transfer switches SS1 and

SS2 from the STS output, but the load continues to work on maintenance bypass line

5) Turn off the input switches S1 and S2

6) Now, the unit is ready for maintenance

- 20 -

Switching From Maintenance Bypass To Normal Operation

1) Turn on input switches S1 and S2

2) Check that the manual XFER switch S6 is on the maintenance source side, and follow that the corresponding static switch (either SS1 or SS2) is turned on

3) Turn on the output switch S3 4) Change the position of the maintenance bypass switch S4 to “0”, lock it again

5) Turn manua l XFER switch to “AUTO” position

6) See there is no alarm message on LCD display if there is no alarm unit is in normal operation mode again

- 21 -

Switching Off The STS During Normal Operation

2) Turn off the output switch S3

1) Turn off all loads which are connected to STS output

3) Turn off input switches S1 and S2

4)

Check that the Maintenance Bypass Switch S4 is in “0” position

5) Unit is completely turned off

- 22 -

DISPLAY

At the center of the control panel there is 2 lines ,per lines 16 alphanumeric characters display, which provides, in the foreground and in real time, a detailed overview of the current status of the STS. Directly from front panel you can control the STS ,view of the electrical values of the input, outputs etc..and make the main machine settings.

The display is 2 lines and the role of lines are as follows:

First line status, menu items and measured parameters

Second line time shared for alarms

The A2 at the beginning of the alarm message on the second line shows the standard alarm code the remaining message part can be different at each language, but the alarm code is standard for all languages.

MIMIC DIAGRAM

There is a led lamp group which they are located on a block diagram of the STS

KEY SYMBOLS

Move 1 step down on menu

E

ENTER button to enter menu or to confirm a selection

-

Move on options or move cursor to left

1 step

+

Move on options or move cursor to right 1 step

Figure

– 13 STS front panel

- 23 -

DISPLAY MENUS

The function of LCD panel is arranged as a 2 level menu structure.

-Main menu

-Sub menus

MAIN MENU

STATUS MESSAGES LEVEL

MEASURES MENU

COMMAND MENU

Use down button to move on menu

Use <E> enter button to go in submenu

ALARMS MENU

OPTIONS MENU

TIME MENU

INFORMATION MENU

ADJUST MENU

SERVICE PASSWORD

USER PASSWORD

If the user press up and down buttons, main menu items come to screen by order. In main menu the left and right buttons does not function. ENTER button goes to submenus

STATUS MESSAGES LEVEL ________________________________________________________________

This is the first item of the main menu and messages gives a general status information about STS to users.

The possible messages according to events are:

ON PREFERRED :This message shows that the selected preferred source is switched directly to the output of

STS (i.e. the load is on the preferred source)

ON ALTERNATE : This message shows that the alternate source is switched directly to the output. The possible causes of this message are : preferred source is bad and load transferred to alternate source or transfer test is being performed.

MANUAL TRANSFER : Load is transferred to one of the input sources statically. This transfer can be performed from COMMAND MENU of LCD Panel or using the static transfer switch.

MAINT.BYPASS S1 : Load is connected directly to the Source 1 input (the S4 maintenance switch is in 1 position)

MAINT.BYPASS S2 : Load is connected directly to the Source 2 input (the S4 maintenance switch is in 2 position)

OUTPUT INHIBIT : This message shows the voltage at the output of STS is shut down. Possible causes of this message are: Source1 and Source2 are bad, and there is no good source for transfer or non synchron transfer is disabled.

Restore options : see options menu (Automatic and manual)

EMERGENCY STOP : This message shows that the external emergency stop signal sensed and the output is shutdown. To reset STS turn off Source 1 and Source 2 input switches and turn on again.

OVERLOAD INHIBIT: Overload sensing is enabled and the overcurrent occurred at the output longer than allowed overload timing. Currently the output of the STS is shutdown.

Restore options :see options menu (Automatic and manual)

- 24 -

MEASURES MENU _________________________________________________________

SP1:230 240 235V

SP2:240 220 215V

LD%:045 060 015%

OPI:025 120 080A

TEMP:26C

S1-FREQ:50.2 Hz

S2-FREQ:50.1 Hz

SYNC.ANG:001 Deg

Use down button to move on submenu

PSP1:16.1 2:16.3

<ENT>EXIT

From this menu users can see all measured parameters on STS ,the submenu items are listed as follows by order of appearance.

SP1:220 230 235V

This menu item shows Source 1 input voltages, 3 numbers shows 3 phase voltages from line to neutral as AC volts

SP2:220 230 235V

This menu item shows Source 2 input voltages, 3 numbers shows 3 phase voltages from line to neutral as AC volts.

LD%:045 050 060%

This menu item shows the output load percentage of STS for each output phase. 100% is maximum capacity of

STS. If the load is above 100% the STS gives overload message.

OPI : 090 100 120A

This menu item shows the output currents of STS for each of the three output phases.

TEMPER : 030 C

This menu item shows the cabinet inside temperature of the STS.

S1-FRQ : 50.1 Hz

This menu item shows the Source 1 input frequency in Hertz

S2-FRQ : 50.1 Hz

This menu item shows the Source 2 input frequency in Hertz

SYNC.ANG: 001 Deg

This menu item shows the phase difference between the two input sources in terms of angular degrees. Zero value shows that two input sources are fully synchronized to each other.

PSP 1=OK 2=OK

This menu item shows the internal DC power supplies are ok or not.

<ENTER> EXIT If the user press ENTER button exits from measures menu to upper menu.

- 25 -

COMMAND MENU __________________________________________________________

From this menu user can give immediate commands to STS.

S1=< 045 AUTO >=S2

from this option user can XFER the load to S1 or S2 directly. The message means that:

Left button

Enter button manual transfer to source 1 automatic transfer (STS tries to stay on preferred source)

Right button

Notes:

manual transfer to source 1

In case of maintenance bypass to any source this function is disabled

In case of any alarm this function is disabled

In case of XFER switch is on S1 or S2 position this function is disabled

In case of disable S1=< 045 AUTO >=S2 message will be replaced with STATIC XFER OFF

If flying transfer is selected and if the user pressed to left or right button ,STS waits for zero cross match of two input sources during this time 045 number shows the synchron angle difference of two sources ,this number blinks and sound alert beeps ,if transfer failed in 30 seconds STS cancels transfer.

In this case re press to S1 or S2 button.

XF.TEST :<ENTER>

from this menu item user can perform transfer test. If the user press

“enter” button and if the load is on preferred source, load is transferred to alternate source, stays on alternate source for a pre-adjusted time (retransfer delay), and is transferred to preferred source back again. transfer test is disabled in the following cases:

If test is performing XF:TEST:PERFORM message will be showned

If any alarm occurs

If manual XFER is active from panel or manual transfer switch

If maintenance bypass is applied

If test is disabled from any reason XF.TEST:DISABLED will be showned

ENTR-INHIBIT RST

If the STS output is shutdown from any reason ENTER button restores the STS output voltage

This function resets all current alarms

ENTER-SOUND ON/OFF This message means that if the user press enter button and if the audible alarm is enabled ,alarm sound will be disabled. The next click will enable the sound alarm again.

RELAY TEST:0 From this submenu 5 dry contact relay outputs can be tested by the user. If the user presses the left button the numbers will change from 5 to 0 ,if the user presses the right button the numbers will change from 0 to 5.

The following table gives the functions of the numbers:

RELAY TEST:0

RELAY TEST:1

Relay test disabled; relays will function normally

Relay 1 is activated

RELAY TEST:2

RELAY TEST:3

RELAY TEST:4

RELAY TEST:5

Relay 2 is activated

Relay 3 is activated

Relay 4 is activated

Relay 5 is activated

Note: If the user exits from this menu item , STS exits from relay test mode.

<ENTER>LAMP TEST

User can check all front panel lamps and sound alert by pressing enter button. All LEDs are lit during user press

ENTER button and return back to their normal functions again.

<ENTER>:LOGOUT

In user or service login status ,if the user press ENTER button logout procedure will be applied ,all logins will be cancelled.Every password login is live for 3 minutes at the end of this time logout will be applied automatically.

<ENTER> EXIT If the user press ENTER button exits from command menu to upper menu

- 26 -

ALARMS MENU ___________________________________________________________

The most important function of the STS is alarms menu. There is a real time clock in the STS and STS records all events by their date and time. And the user can see all previous events and alarms, by order. Every log record contains 24 alarms and 10 status messages.

000>101003 10:30 This is the last recorded alarm on 10-10-2003 date, at 10:30 and the event number is 000.

The second line shows alarm or alarms time shared by order which were recorded at that time.

If the user presses the left or right buttons, the event numbers will change from 000 to 127, 000 is the last event and the 127 is the first (oldest).

<ENTER> CLEAR LOG: If the user press enter key during this message, STS will clear all recorded events from memory.

Note : For log table delete service login is required otherwise the user can not clear log events.

S1 CODE: 000 This message shows the detailed alarm codes for Source1. The numbers are arranged as

Bitmap and the meanings are as follows:

Code

Code:0

Code:1

Code:2

Description

No alarm on Source 1, Source normal

Source 1 input voltage out of tolerant

Source 1 phase sequency bad

Code:4

Code:8

Source 1 backfeed tripped

Source1 black-out sense

Code:16 Source1 phase balance bad

Code:32 Source1 frequency is out of tolerance

Code:64 Source1 input switch is off

Code:128 phase or alternance loss on S1

At some cases numbers can be shown as total (contains more then 1 alarm at the same time)

S2 CODE: 000 This message shows the detailed alarm codes for Source2. The numbers are arranged as

Bitmap and the meanings are as follows.

Code

Code:0

Code:1

Code:2

Description

No alarm on Source 2, source normal

Source 2 input voltage out of tolerant

Source 2 phase sequency bad

Code:4

Code:8

Source 2 bacfeed tripped

Source2 black-out sense

Code:16 Source2 phase balance bad

Code:32 Source2 frequency is out of tolerance

Code:64 Source2 input switch is off

Code:128 phase or alternance loss on S2

At some cases numbers can be shown as total (contains more then 1 alarm at the same time)

<ENTER> EXIT If the user press ENTER button exits from alarms menu to upper menu

- 27 -

OPTIONS MENU ___________________________________________________________

This menu contains user adjustable operating modes, options and parameters. These are as follows.

PREFERED : SourceX User can give priority to one of the input sources

OPTION DESCRIPTION

Source1 Source1 has higher priority. STS tries to transfer the load to Source1 under normal operating conditions.

Source2 Source2 has higher priority. STS tries to transfer the load to Source2 under normal operating conditions.

Press (+ or -) keys for selection and press enter key to apply the new preferred source selection.

If the preferred source fails, STS transfers the load to the alternate source.

RE-TRANSFER : On (or Off)

OPTION DESCRIPTION

On

Off

If preferred source failed by any reason load transfers to alternate source and retransfers to preferred source after a delay (RET-DELAY)

If preferred source failed load transfers to preferred source and load stays permanently on alternate source after transfer from the preferred source (until alternate source fails ,if alternate source fails STS retransfers the load to preferred source again)

Press (+ or -) keys for selection and press enter key to apply the new selection

RET-DELAY : 008sec user can adjust re-transfer delay (how long the STS stays on alternate source). The range of applicable delay is 1-60 seconds.

Press (+ or -) keys for adjustment and press enter key to apply the new value

OVLOAD : ENABLE (OR DISABLE) user can select the overload behavior of the STS.

OPTION

DISABLE

ENABLE

DESCRIPTION

Electronic Overload protection feature is disabled, STS continues to supply the load during overcurrents. The supply current is limited only by the input MCCBs ratings.

Electronic Overload protection is enabled, i.e. STS continues to supply the load with a certain overload current for a certain period of time determined by the control software.

Press (+ or -) keys for selection and press enter key to apply new selection

ALR.HOLD: 010 sec user can adjust the alarm hold time from this submenu. The adjustment range is 5 to 60 seconds. The current alarm stays on LCD panel as given time then if the alarm condition is normal STS clears the alarm message from LCD panel.

Press (+ or -) keys for adjustment and press enter key to apply the new value

NSYNC.TR: (disable, delay, 0-curr) User can select non synchronous transfer method of the STS. The unit decides which kind of transfer method is applied when there is no synchronization between the two input sources, Source 1 and Source 2. ,during transfer from preferred source to alternate source.

OPTION

Disable

WARNING

Delay

0-curr.

DESCRIPTION

Transfer is disabled when there is no synchronization. If preferred source failed during non synchronous status output will be shutdown.

Non synchronous transfer is allowed only after a security delay. Delay time can be adjusted by the service personnal from the ADJUST MENU.

If this mode is selected, during non synchronous transfer, STS waits for the output currents to be zero and transfers to the alternate source.

Press (+ or -) keys for selection and press enter key to apply the new selection

- 28 -

OVL.RESET: (AUTO or MANUAL) This option determines overload reset type of the STS.

OPTION DESCRIPTION

AUTO If overload alarm occurs, STS shuts down the output voltage and at the end of alarm hold time begins to supply the load again.

MANUAL If overload alarm occurs, STS shuts down the output voltage and stays in this position until the user resets the STS using the COMMAND MENU.

Press (+ or -) keys for selection and press enter key to apply the new selection

INH.RESET:AUTO This option determines the output inhibit reset type of STS

OPTION DESCRIPTION

AUTO

MANUAL

If the STS shutdown the output voltage from non synchronous transfer disabled option, at the end of alarm hold time it begins to supply the load again.

If the STS shutdown the output voltage from non synchronous transfer disabled option, it stays in this position until the user resets the STS using the COMMAND MENU.

Press (+ or -) keys for selection and press enter key to apply the new selection

REMOTE:ON This option enables or disables the remote control of STS from its serial port.

OPTION

ON

OFF

DESCRIPTION

The control options of STS is enabled from serial port (Login requires)

The control options of STS is disabled from serial port (read only)

Press (+ or -) keys for selection and press enter key to apply the new selection

RET.MODE: (WAIT SYN ,DELAY ,0-CURRENT,FLYING)

This option determines non synchronous retransfer from alternate to preferred source

OPTION

WAIT SYNC

DESCRIPTION

During retransfer from alternate to preferred source wait until two input sources for synchron otherwise stay on alternate source.

DELAY

0-CURRENT

After a certain delay retransfer the load from alternate to preferred source. Delay time can be adjusted by the service personnel from the ADJUST MENU.

If this mode is selected, during non synchronous retransfer, STS waits for the output currents to be zero and transfers to the alternate source.

FLYING During retransfer from alternate to preferred on non synchronous status STS waits for zero cross match of two input sources ,if they are matched retransfers the load

PHASE ERROR : (ON,OFF)

This option enables or disables the phase sequence sense circuit of the STS

OPTION

ON

DESCRIPTION

Enables source input phase sequency error

OFF Disables source input phase sequency error

SCR ALARM : (ON,OFF)

This option enables or disables the phase or alternance loss sense circuit of the STS

OPTION DESCRIPTION

ON

OFF

Enables phase or alternance loss sense on the STS output

Disables phase or alternance loss sense on the STS output

MAN.XFER: (0-curr / Flying)

Determines manual transfer switch or front panel manual transfer operating mode

OPTION DESCRIPTION

0-Current

Flying

Apply 0-current transfer method during manual transfer

Apply flying transfer method during manual transfer

<ENTER> EXIT If the user press ENTER button exits from options menu to upper menu

- 29 -

TIME MENU ______________________________________________________________

From this menu user can see and set the time and date settings of RTC of the STS.

TIME: 13:15

Current time of the RTC clock

DATE:10-01-2007

SET HOURS: 13

Current date of RTC clock press left and right buttons to change the current hours (0 to 23)

SET MINS: 15

SET DAY: 10

SET MONTH: 01

SET YEAR:2007

<ENTER> :UPDATE

<ENTER> EXIT

press left and right buttons to change the current minutes (0 to 59) press left and right buttons to change the current day of the month (1 to 31) press left and right buttons to change the current month of the year (1 to 12) press left and right buttons to change the current year (2000 to 2099) press enter to update the last date and time settings on STS RTC clock

If the user press ENTER button exits from time menu to upper menu

INFORMATION MENU ______________________________________________________

This menu contains some useful information about the STS operation...

RS232 receive: OK there is RS232 receive action

RS232 receive: -- there is no RS232 receive action

This message shows that the STS is receiving the serial communication data from the PC. If a PC is connected to STS through its RS232 serial port, this menu helps the user about communication failures.

VERSION:STA10-X The firmware version of the STS control software.

<ENTER> EXIT If the user press ENTER button exits from information menu to upper menu

ADJUST MENU ____________________________________________________________

This menu is for service personnel only there is no user defined parameter or option on this menu please refer to service manual of STS unit for detailed information.

SERVICE PASSWORD ______________________________________________________

Adjust menu functions requires service password. The service personnel of the STS unit knows the service password.

Service password is 4 characters length ,these are numeric characters .

At first entry to this menu SER.PASS: 0000 message is showned ,one of characters is replaced with blinking cursor ,this character can be change by pressing up and down buttons.

Left and right buttons changes the cursor position.

After you typed the service password press ENTER button ,if the password is correct at the second line of LCD panel SERVICE LOGIN message will be showned.

The usage of this menu is as follows :

If service personnel is in LOGGED OUT status:

The main menu message will be “PASSWORD INPUT“. Press enter button; the password input submenu comes to screen.

PASSWORD:0000 left and right keys moves the blinking digit to either left or right. Use up and down keys to change the blinking number. After you typed all 4 numbers, press enter button. If the password is correct, menu returns to main menu and the LOGGED ON message will be shown on the second line of LCD Panel. If the password is incorrect, INVALID >:EXIT message will be shown. This means password is invalid and the right button is used to exit from this message.

If service personnel is in LOGGED ON status:

If the user is logged on, this menu functions as password change menu.

The main menu message will be CHANGE PASSWORD. Press enter button, the password input submenu comes to screen.

- 30 -

NEW PASS:0000 left and right keys moves the blinking digit to either left or right. Use up and down keys to change the blinking number. After you typed all 4 numbers press enter button.

ENTER:OK >:EXIT this message means that if the user presses enter button the new password is valid from now on. The user can exit from this message by pressing the right button.

In case of forgot the service password, connect the jumper JP2 on the main board this will activate the service login mode you can access to ADJUST MENU.

USER PASSWORD ________________________________________________________

User password is 4 characters length ,these are numeric characters .

At first entry to this menu USR.PASS: 0000 message is showned ,one of characters is replaced with blinking cursor ,this character can be change by pressing up and down buttons.

Left and right buttons changes the cursor position.

After you typed the user password press ENTER button ,if the password is correct at the second line of LCD panel USER LOGIN message will be showned.

User password can be change by the users during login status.

ALARM MESSAGES

Following table shows all the alarm messages which are used in STS and these messages will be recorded in events log.

2. LINE MESSAGES (these messages are shown on the second line of LCD panel)

A1 SOURCE 1 BAD

A2 SOURCE 2 BAD

A3 SYNCHRON BAD

A4 OVERLOAD

A5 NSYNC.INHIBIT

A6 XFER INHIBIT

A7 OUT.BAD ON S1

A8 OUT.BAD ON S2

A9 PSP FAILURE 1

A10PSP FAILURE 2

A11 OVERTEMP

A12 MAN.XFER S1

A13 MAN.XFER S2

A14 BYPASS TO S1

A15 BYPASS TO S2

A16 OUTP.SW.OFF

A17 INP.SW.1 OFF

A18 INP.SW.2 OFF

A19 S1 BLACKOUT

A20 S2 BLACKOUT

A21 S1 FRE.FAULT

A22 S2 FRE.FAULT

A23 S1 BAL.BAD

A24 S2 BAL.BAD

A25 ROTATE S1 Ph

A26 ROTATE S2 Ph

A27 SHORT CIRCUIT

A28 MISFUNCTION

A29 BACKFD.TRIP1

A30 BACKFD.TRIP2

If input source 1 is out of tolerance this alarm occurs

If input source 2 is out of tolerance this alarm occurs

Shows that 2 input sources are not synchronized

Output current of the STS is too high

Non synchronous transfer is disabled by the user, and during non sync status transfer process started ,currently output shutdowns

During transfer the STS can not find a good source and the output shutdowns

Redundant power supply 1 is bad

Redundant power supply 2 is bad

SCR heatsink temperature is too high

Load is transferred to Source 1 by the user

Load is transferred to Source 2 by the user

Load is directly transferred to Source 1 by maintenance bypass

Load is directly transferred to Source 2 by maintenance bypass

The output switch of the STS is off

The Source 1 input switch is off

The Source 2 input switch is off

On Source 1 input black out sensed

On Source 2 input black out sensed

Source 1 input frequency out of tolerant

Source 2 input frequency out of tolerant

Source 1 input phase balance bad

Source 2 input phase balance bad

Source 1 input phase sequence is BAD

Source 2 input phase sequence is BAD

Short circuit status fixed on the output of the STS

Faulty usage of manual transfer switch

Backfeed protection activated for source 1

Backfeed protection activated for source 2

- 31 -

STATUS MESSAGES

SERVICE LOGIN

EMERGENCY STOP

ON SOURCE 1

ON SOURCE 2

STS RESET

EMPTY LOG

OUTPUT SHUTDOWN

USER LOGIN

MANUAL TRANSFER

MAINT-BYPASS S1

MAINT-BYPASS S2

OUTPUT INHIBIT

Service personnel is logged on from panel or RS232 for adjustment

External emergency stop signal is detected and the output shutdown

Load is on source 1

Load is on source 2

STS is started (power on)

The current log record is empty

Output of the STS is shutdown currently

User is logged on from panel or RS232 for adjustment

Manual transfer is activated by the user

Maintenance bypass switch is on S1 position

Maintenance bypass switch is on S2 position

The output of the STS is shutdown

INPUT SOURCE ALARM DESCRIPTIONS

INPUT SOURCE VOLTAGE OUT OF TOLERANT

If the input source voltage is less then minimum adjusted value or higher then maximum adjusted value STS decides the related source is BAD.

figure - 14

BLACKOUT SENSING

Programmable black out sense provides flexible operation according to conditions and applications.

figure - 15

- 32 -

TRANSFER METHODS

DELAY TRANSFER MODE (non synchron transfer mode)

figure - 16

0-CURRENT TRANSFER MODE (non synchron transfer mode)

figure - 17

- 33 -

FLYING TRANSFER MODE (non synchron transfer mode)

SYNCHRON TRANSFER

figure - 18 figure - 19

- 34 -

NON SYNCHRON TRANSFER DISABLED

TRANSFER FLOWCHART

figure - 20 figure - 21

- 35 -

OPTIONAL EXTERNAL POWER INPUT

Optional external power supply input provides event logging during power loss on all inputs . If external power supplied from a small UPS ,all control circuits of the STS continues to function and records power events for troubleshooting.

External power input connector is located on to the back panel of the STS.

figure

– 22 External power input

COMMUNICATION INTERFACE AND REMOTE MANAGEMENT

The following information contains standard communication interface for INFORM STS. Additional RS485 communication for long distance is available as an option.

3 types of communication interfaces are available on STS units

RS232

DRY CONTACTS

TCP/IP connection

Possible connections to STS unit

Serial communication

Dry contact outputs for some major events.

Available (optional)

Baud rate connection

Bits

Parity flow

Stop bit

RS232 hardware

2400 baud

3 wire (RX,TX,GND)

8 bits none none

1

- 36 -

RS232 CONNECTION TO PC

To connect STS to any PC from RS232 use CC05 cable for connection. STS MANAGER software must be run on PC.

figure

– 23 STS RS232 connection to PC

Notes



CC05 cable is not a standard RS232 cable ,PC side is standard RS232 pins but the STS side pin functions are different then a standard RS232 cable.



Maximum cable length of the RS232 interface is 25 meters.

RS232 Pinouts figure

– 24 RS232 pinouts

RS232 security

The STS serial port is interactive with PC so PC can send any command to STS in this case unauthorized users can change parameters and send unwanted commands to STS. To prevent unauthorized access to STS from serial port two level security is provided. a) User can enable or disable remote RS232 commands from options menu ,if remote is disabled(off) STS will accept only parameter sending commands. The control commands will be refused. b) From PC user password is required (USER LOGIN). If password is sent from PC to STS ,2 minutes login status will be applied ,during this time control commands and user options will be accepted from RS232 serial port. Bu at the end of this time remote user will be logged out.

- 37 -

Relay1

Relay2

Relay3

Relay4

Relay5

Relay6

Relay7

Emergency stop

DRY CONTACT INTERFACE

Activates if the load is on alternate source

Activates if Source2 is the preferred source

Activates if the output is inhibited

Activates if an alarm occurs

Activates if a manual XFER or maintenance bypass occurs

BACKFD.TRIP1 (2 seconds)

BACKFD.TRIP2 (2 seconds)

Inputs

If the user presses the external emergency stop switch for more then 2 seconds STS shutdowns the output

ML200 OPTIONAL TCP/IP ADAPTOR

On standard models RS232 serial port is installed but if the user wants to use serial port and TCP/IP connection at the same time optional TCP/IP adaptor is available.

figure

– 25 Optional TCP/IP adaptor front view

The adaptor is located on to the back front panel

figure

– 26 Location of TCP/IP adaptor

Sample TCP/IP and serial port connection

figure

– 27 Connection of TCP/IP adaptor

STS Manager software supports RS232 and TCP/IP connection.

- 38 -

TECHNICAL SPECIFICATIONS

Input voltage

Neutral switching

Input voltage analog error window

Input voltage distortion

Input Blackout sensing

Input blackout error window

Phase balance error sensing

Phase balance error sense offset

Input frequency

Input frequency error window

Phase sequency sense

Phase sequency alarm

Input MCCB trip during short circuit

Back feed protection

INPUT

180-250 volts AC 3 phase (3 phase +neutral)

Optional adjustable from service menu

Less than 10%

Available

Adjustable from service menu

Available (user can disable) adjustable

50Hz or 60 Hz (adjustable from service menu) +-5%

Adjustable (from service menu)

Available

Enabled or disabled by the user

Available

Available

Output voltage

Output frequency

Rated current

Load crest factor

Type of transfer

Synchron Transfer time

Non synchron transfer time

OUTPUT

Same as input

Same as input

50-100-150-200-300-400-600 amperes per phase and neutral according to models (STS450- STS4100- STS4150- STS4200- STS4300-

STS4400-STS4600) respectively.

Up to 3.5

Break before make max 1.8 msec (on 0 current mode) max 10 msec in 0 current mode, 0-25 sec adjustable in delay mode and in 0 current mode.

Available

0.6 lag to 0.9 lead

Flying transfer

Load PF range

Transfer mode

Synchron transfer delay

Non synchron transfer mode

PROGRAMMING

Synchron

Non synchron with delay

Non synchron 0 current:Transfers each phase on 0 current

0-current transfers in max 1.8 miliseconds

Disable

Delay and transfer

Wait for zero current for each phase and transfer

Non synchron transfer delay

0-25 seconds adjustable

Digital synchronization check digital: Calculation of angle between sources

Analog synchronization check Analog sense: Measuring voltage difference

Phase angle error

Preferred source

Retransfer

0-20 degrees adjustable

Selectable

ON : transfers to alternate source and retransfers to the preferred source

OFF :transfers to alternate source and stay until it fails.

Retransfer mode

Retransfer delay

Alarm hold time

Input blackout sense

Overload inhibit

Overload inhibit resetting

Inhibit resetting

Wait synchron ,Delay ,0-current ,Flying transfer

1-60 seconds adjustable

5-60 seconds adjustable

0.1-25 miliseconds adjustable

Disable : do not sense overload

Enable: applies for different loads and for different times

100%-150% 1 minute

150%-200% 10 seconds

>200%- 0,5 seconds

1000% 20 msecs

Manual or automatic reset

Manual ot automatic

- 39 -

Event

Transfer inhibit criteria

Overload inhibit

Retransfer criteria

Manual transfer mode

Emergency stop

Maintenance bypass

EVENTS DESCRIPTION

Criteria

If both preferred and alternate sources fails at the same time

If 2 input sources are not synchronous to each other

And non synchron transfer is disabled by the user

If one of the 3 phase currents is higher than a software preset value And overload inhibit is enabled by the user

If synchron immediately transfer

If the 2 input sources are not synchronous to each other ,according to selected retransfer mode by the user

If synchron immediately transfer

If not synchronous according to selected manual transfer mode by the user

If external emergency stop signal is applied

If maintenance bypass switch is on S1 or S2 position

2 lines 16 character LCD alphanumeric display

Microprocessor

Control buttons

Manual transfer to S1

Manual transfer to S2

Cancel manual transfer

Transfer test

Manual inhibit reset

Sound on/off

Dry contact relay test

Lamp test

Sound test

Logon by password

Alarm logs

Status indication leds

Manual transfer switch

Mechanical bypass

Source input switch

External EPO input

INDICATORS AND CONTROLS

1.line for parameters

2.line for alarms

32 mips, very fast

5 push buttons interactive with LCD panel

From panel or RS232

From panel or RS232

From panel or RS232

From panel os RS232

From panel or RS232

From panel or RS232

From panel or RS232

From panel

From panel

From panel or RS232

128 recorded alarm logs from panel or RS232

7 led lamps arranged in a mimic diagram

Available

Available for each input

Available for each input (MCCB type trip type)

Available

Source 1 voltages

Source 2 voltages

MEASURED PARAMETERS

All measured parameters can be monitored from front panel or RS232

230 220 215 V

210 219 218 V

Output load percentage

Output current

STS cabinet temperature

Source1 input frequency

Source2 input frequency

015 020 040 %

020 030 045 A

024 deg.

50.0 Hz

Phase angle

DC Power supply voltages

50.1 Hz

005 deg. (The phase difference between 2 sources in terms of angular degrees)

15.8 16.0 V (PS1 and PS2)

- 40 -

USER OPTIONS AND SETTINGS

All user option parameters can be selectable from front panel or RS232

Preferred source selection Source 1 or source 2 from panel or RS232

Retransfer mode

Retransfer delay

Overload inhibit

Alarm hold time

Non synchron transfer mode

Overload inhibit reset mode

Inhibit reset mode

Remote access

Retransfer mode

Phase error

SCR ALARM

Manual transfer mode

On/off from panel or RS232

1-60 seconds from panel or RS232

Disable or Enable

5-60 seconds from panel or RS232

Disable

Delay and transfer

0 current from panel or RS232

Manual or automatic

Manual

Automatic

On : Control Access from RS232 ENABLED

Off : Control Access from RS232 DISABLED

Wait synchron

Delay

O-current

Flying transfer

On : Phase sequency alarm enabled

Off : Phase sequency alarm disabled

On : Output phase or alternance loss sense enabled

Off : Output phase or alternance loss sense disabled

0-current - Flying

Emergency stop input

Dry contact outputs

COMMUNICATION INTERFACE

2 seconds delay NO input

5 outputs available

Relay 1 : on alternate

Relay 2 : preferred=source 2

Relay 3 : Transfer inhibit

Dry contact communication relays

RS232 serial interface

RS232 hardware

Relay 4 : Summary alarm

Relay 5 : Bypass (mechanical or manual)

Available ASCII characters

2400 baud ,1 stop bit ,no parity

3 wired (RX,TX,common)

TCP/IP connection

2 serial ports

Available (optional)

Available (optional)

Monitoring and control software Available on windows

OTHER FEATURES

2 redundant power supplies, hot swappable

Power supply

Cooling fan

Neutral switch

100-260 volt AC input

2 cooling fans (redundant) (3 fans for STS4200) optional

Input overload and short circuit protection available

Output switch

Cabinet inside temperature sensor available available

- 41 -

Model

MECHANICAL CHARACTERISTICS

STSX50 STSX100 STSX150 STSX200 STSX250 STSX300 STSX400 STSX600

Height

Width

Dept

Weight 3pole

4pole

Ventilation

130 Kg

160 Kg

1500 mm

685 mm

530 mm

145 Kg

175 Kg

165 Kg

190 Kg

195 Kg

205 Kg

1770 mm

685 mm

580 mm

205 Kg

235 Kg

230 Kg

240 Kg

Forced air cooling by internal fans.

Cooling outlet

Cable Entry

Protection

From top

From base / on front

IP20

RAL7035 Color

Service access

From front side

<X> letter on table shows 3 pole or 4 pole model options ( 3 = 3 pole , 4 = 4 pole)

Note : Dimensions are given without package sizes

- 42 -

240 Kg

255 Kg

1905 mm

915 mm

735 mm

340 Kg

375 Kg

MAINTENANCE

WARNING !!!

There are no customer serviceable components inside. DO NOT open the cover or attempt to service the unit.

Unauthorized service will void the warranty and could cause serious injury.

The unit is designed for easy maintenance. Very little customer user maintenance is required. The following will help to ensure trouble -free operation for many years:

1. Vacuum the dust from the ventilation intake on the front panel.

2. Wipe the cover with a dump cloth.

TROUBLESHOOTING

Due to the unique design, the unit can be serviced only by authorized people. In case of a persistent failure or problem properly turn off the unit first. Then review the following check list. Be prepared to answer the questions before calling the service.

1. First off all please note the error code AXX on the second line of the STS LCD panel

2. Did you follow the operation procedure? Did it happen on installation?

3. Did a power failure occur just after or before the malfunction noted on the STS?

4. What is the indicators status? (see alarms and alarm codes)

5. See recorded log events and their date and time

6. Were any changes made recently to unit or the critical equipment connected to the unit?

7. Did an overload condition occur? Remove load from the unit and restart it.

8. Check the two source input phase voltages and input fuses of the STS

9. Is the utility power phase sequence correct (were any changes phase sequence of the mains)?

10.

If the load fails and there is no alarm on STS check the load distrubition fuses cables etc…

11. If over temperature alarm occurs please check the air outlets of the STS

- 43 -

ML200 OPTIONAL TCP/IP ADAPTOR SETUP

If optional TCP/IP adaptor is installed you need some network adjustments for TCP/IP connection make the network connections as displayed at the following figure:

TCP/IP network Adjustment procedure

1) First setup Lantronix device installer software from ML200 CD

2)

Run device installer software. (Start-Programs-Lantronix Device Installer)

This utility program finds all network connected ML200 devices.

If it fails please change your network settings (IP address and subnet mask) as static IP to the following values

İt is only for adjustment purpose after you adjust adaptor you can return to your old network settings.

TCP/IP Port (X-Port) factory settings:

IP: 10.0.0.xxx

Subnet Mask: 255.0.0.0

Gateway : 0.0.0.0

The startup screenshot is showed at the figure 28 The device installer program finds ML200 devices on the network automatically and lists all devices on program window.

Figure 28

- 44 -

If the program finds ML200 device on the list double click on it and device details will be shown at the window. Select the related ML200 and click on *Assign IP* button for adjusting the adaptor to your network settings.

Figure 29

Figure 30

- 45 -

At “Assign IP” window select *Static IP* option from configuration window and click on *NEXT* button.

NOTE : The new IP address is different from 10.0.0.xxx or subnet mask is different from 255.0.0.0 value the unit connection may be lost in this case please re adjust your PC network settings to these network values.

Figure 31

After adjust ML200 Ethernert port IP addresses the new assigned IP address will be shown at device installer program window.

Figure 32

- 46 -

For detailed configuration we must connect to adaptor as WEB page to do this from device installer program click on WEB configuration. Than click on *GO* button and device main WEB PAGE comes to screen. Ignore username and password values for the first time.

For ML200 serial port configuration at the left side menu click on *Serial settings* serial configuration page comes to screen.

Parameter

Baud rate

value

2400

Click on *OK* button for update settings at the end of page

Figure 33

For ML200 Ethernet configuration from the left side manu click on *Connection* related configuration page comes to screen.

Connect Mode Accept Incoming

Active Connect

Connect Response

YES

None

None

Local port

Remote port

Click on *OK* button for update settings at the end of page

10001

10001

- 47 -

Figure 34

- 48 -

3) Now you are ready for connection ,run STS manager software (first install it)

Figure 35

Type the given IP address (given IP at device installer) to Remote STS 1 white window check that TCP/IP port factory setting value is 10001. Click on Save button. From STS manager main window select Connect to

Remote STS on 10.0.0.190 (or any IP) and click on Connect button. Check that at the bottom of window Data

OK message shows that the connection to remote STS is provided.

Figure 36

Figure 37

- 49 -

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