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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

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Содержание InfoSTS

Страница 1: ...__________________17 DESCRIPTION 17 PRELIMINARY OPERATIONS 17 POWERING ON FOR THE FIRST TIME 17 Switching On Normal Operation The STS From Off Position 18 Switching To Maintenance Bypass Position From...

Страница 2: ...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 InfoST...

Страница 3: ...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...

Страница 4: ...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...

Страница 5: ...tenance the position of this switch must be OFF SS1 Static transfer SCR circuit to source 1 This static switch contains SCRS and snubber components and driven by a driver circuit which is controlled b...

Страница 6: ...CH 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 tr...

Страница 7: ...s 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 i...

Страница 8: ...7 FRONT VIEWS OF THE STS Interior front view S6 Manual transfer Switch Dry contact outputs EPO Input S3 Output Switch S2 Source 2 I P SW S1 Source 1 I P SW RS232 Port S4 Maintenance Bypass SW figure 4...

Страница 9: ...urce 1 input is OK SW1 Source 1 input monitor lamp Off source 1 input failed On source 2 input is OK SW2 Source 2 input monitor lamp Off source 2 input failed On SS1 SCR group fired SS1 Source 1 stati...

Страница 10: ...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 interfe...

Страница 11: ...talling 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...

Страница 12: ...d 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 voltag...

Страница 13: ...hs type of protection etc These recommendations are for guideline purposes only and are superceded by local regulations and codes in practice CONNECTIONS InfoSTS Series Static Transfer Switches run on...

Страница 14: ...13 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...

Страница 15: ...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 Connection terminals of 4 pole STS Figure 10 Input...

Страница 16: ...ibit relay RL4 Summary alarm relay RL5 Manual or static transfer relay RL6 S1 backfeed trip 1 second active RL7 S2 backfeed trip 1 second active EPO input is NO type interface normally open if EPO inp...

Страница 17: ...e 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...

Страница 18: ...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...

Страница 19: ...ontrol 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 4 Check from the m...

Страница 20: ...m 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 o...

Страница 21: ...ce 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 agai...

Страница 22: ...ormal Operation 1 Turn off all loads which are connected to STS output 2 Turn off the output switch S3 3 Turn off input switches S1 and S2 4 Check that the Maintenance Bypass Switch S4 is in 0 positio...

Страница 23: ...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 remai...

Страница 24: ...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 Thi...

Страница 25: ...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 cu...

Страница 26: ...arm 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 S...

Страница 27: ...s are arranged as Bitmap and the meanings are as follows Code Description Code 0 No alarm on Source 1 Source normal Code 1 Source 1 input voltage out of tolerant Code 2 Source 1 phase sequency bad Cod...

Страница 28: ...the overload behavior of the STS OPTION DESCRIPTION DISABLE Electronic Overload protection feature is disabled STS continues to supply the load during overcurrents The supply current is limited only b...

Страница 29: ...FLYING This option determines non synchronous retransfer from alternate to preferred source OPTION DESCRIPTION WAIT SYNC During retransfer from alternate to preferred source wait until two input sour...

Страница 30: ...___ 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 _____________...

Страница 31: ...A3 SYNCHRON BAD Shows that 2 input sources are not synchronized A4 OVERLOAD Output current of the STS is too high A5 NSYNC INHIBIT Non synchronous transfer is disabled by the user and during non sync...

Страница 32: ...m panel or RS232 for adjustment MANUAL TRANSFER Manual transfer is activated by the user MAINT BYPASS S1 Maintenance bypass switch is on S1 position MAINT BYPASS S2 Maintenance bypass switch is on S2...

Страница 33: ...15 External power input COMMUNICATION INTERFACE AND REMOTE MANAGEMENT The following information contains standard communication interface for INFOSTS Additional RS485 communication for long distance...

Страница 34: ...ve 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 se...

Страница 35: ...s Inputs Emergency stop If the user presses the external emergency stop switch for more then 2 seconds STS shutdowns the output OPTIONAL TCP IP ADAPTOR On standard models RS232 serial port is installe...

Страница 36: ...e max 10 msec in 0 current mode 0 25 sec adjustable in delay mode and in 0 current mode Flying transfer Available Load PF range 0 6 lag to 0 9 lead PROGRAMMING Synchron Non synchron with delay Transfe...

Страница 37: ...s 5 push buttons interactive with LCD panel Manual transfer to S1 From panel or RS232 Manual transfer to S2 From panel or RS232 Cancel manual transfer From panel or RS232 Transfer test From panel os R...

Страница 38: ...ARM On Output phase or alternance loss sense enabled Off Output phase or alternance loss sense disabled Manual transfer mode 0 current Flying COMMUNICATION INTERFACE Emergency stop input 2 seconds del...

Страница 39: ...30 mm 580 mm Weight 175 Kg 205 Kg 220 Kg 240 Kg Ventilation Forced air cooling by internal fans Cooling outlet From top Cable Entry From base on front Protection IP20 Color RAL9011 Service access From...

Страница 40: ...wer 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 installati...

Страница 41: ...ice Installer This utility program finds all network connected TCP IP adaptor devices If it fails please change your network settings IP address and subnet mask as static IP to the following values t...

Страница 42: ...P adaptor device on the list double click on it and device details will be shown at the window Select the related TCP IP adaptor and click on Assign IP button for adjusting the adaptor to your network...

Страница 43: ...ent 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 25 After adju...

Страница 44: ...guration at the left side menu click on Serial settings serial configuration page comes to screen Parameter value Baud rate 2400 Click on OK button for update settings at the end of page Figure 27 For...

Страница 45: ...44 Figure 28...

Страница 46: ...ller to Remote STS 1 white window check that TCP IP port factory setting value is 10001 Click on Save button From STS CONTROL main window select Connect to Remote STS on 10 0 0 190 or any IP and click...

Страница 47: ...NOTES...

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