ees arcon stm150 operation manual

Operating Manual – ARCON STM150

© Emerson Energy Systems AB 2004 – All rights reserved

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© Emerson Energy Systems AB 2004 – All rights reserved of20

Table of contents : 1. UNIT DESCRIPTION ................................................................................................................................................ 3

FRONT PANEL INTERFACE.................................................................................................................................................... 3 OPERATING MODE ............................................................................................................................................................... 4

1.1.1. ON-LINE CONFIGURATION ............................................................................................................... 5 1.1.2. OFF-LINE CONFIGURATION............................................................................................................. 5

2. TECHNICAL DATASHEET ..................................................................................................................................... 6

3. HARDWARE AND ELECTRICAL INSTALLATION .......................................................................................... 7

4. MODULE OPERATION............................................................................................................................................ 8 COMMISSIONING ................................................................................................................................................................. 8

4.1.1. Starting with mains present: ........................................................................................................................... 8 4.1.2. Starting without mains present: ...................................................................................................................... 8

STARTING AND RUNNING SEQUENCE ................................................................................................................................... 9 5. USER INTERFACE.................................................................................................................................................. 10

DISPLAY MODE MENU ....................................................................................................................................................... 11 PARAMETRIC MODE MENU................................................................................................................................................. 13 CONFIGURATION MODE MENU........................................................................................................................................... 15 MENU SUMMARY (DISPLAY AND PARAMETRIC MENUS) ..................................................................................................... 15

6. PROTECTION AND ALARMS .............................................................................................................................. 16 INTERNAL ELECTRONIC PROTECTION................................................................................................................................. 16 FUSES PROTECTION ........................................................................................................................................................... 16 REMOTE CONTROL AND ARCON STM FREE POTENTIAL CONTACTS. ............................................................................... 16 PAYMENT PROTECTION ..................................................................................................................................................... 16

7. TROUBLESHOOTING GUIDE.............................................................................................................................. 17 ALARMS AND DISPLAY STATUS (MESSAGES LIST) ............................................................................................................. 17 ERROR MESSAGE LIST........................................................................................................................................................ 17 MENU IN FACTORY MODE. ................................................................................................................................................ 18

8. HOW TO ORDER ?.................................................................................................................................................. 19 MODEL : ARCON STM150 STATIC SWITCH FOR RDI INVERTER......................................................................... 19

9. APPENDIX : ARCON STM 150 FAILURE SHEET REPORT........................................................................... 20



1. Unit description The ARCON STM 150 is an ultra-fast switch intended for the transfer of one load from a redundant inverters system to a second source of AC voltage or vice-vers It has been designed for current up to 180A in assisted cooling. It allows the redundant inverters system to work on an ‘’ON LINE’’ or ‘’ OFF LINE’’ mode. It is provided with : Alphanumeric display allowing:

• message display giving the system status (load position, system fault, inverter defect, synchronism or not, overload,..) in several languages (selection by user).

• value display of the voltage, the current, the power and the frequency Control push buttons. On / Off switch to control the start and stop of inverter modules in the system. Rear connections for Power and RDI digital bus.

1.1. Front panel interface

1. Inverter System switch ON/OFF 2. Connector RJ45 for RDI bus (X10) 3. Connector RJ45 for download of a new software version (X8) 4. LESs to indicate voltage presence on AC terminals 5. Scrolling menu push button 6. Green LED indicating the RDI bus is active 7. Red LED for alarm status 8. LCD display for measure and module status 9. Down key (in parametric mode) 10. Up key (in parametric mode) 11. Not Used for Arcon RDI inverter 12. Output trigger terminal to trig and oscilloscope to see “transfer”

9 10 5 6 8 7 11 2 3 4 1 12



Module information (status) as well as various measurements are accessible through LCD display and menu push button.

Parameters adjustment can also be performed thanks to menu push button in parametric mode.

Please refer the "Parametric mode" menu section.

1.2. Operating mode

ARCON STM150

Redundant inverter system

RDI

RDI

RDI

RDI Bus

Figure 1. Block schematic of the switching part Entering in the configuration menu through the buttons on the front panel allows the user to choose between 2 operating modes:

• ON-LINE mode: Load supplied permanently by the inverters with assistance (general power failure) or temporary assistance (overload, short-circuit, module break-down) from the mains if necessary.

• OFF-LINE mode: Load supplied permanently by the mains with assistance (non conformity of

the voltage or frequency mains out of range ) from the inverter system if necessary.



1.2.1. ON-LINE CONFIGURATION Operating principle Fig. 1 shows the operating principle of a parallel inverter system assisted by a ARCON STM150. In the normal state, the loads are supplied by the inverters which the emergency system holds synchronous by means of the SY (synchronisation) process located in the ARCON STM 150. When a fault occurs on the AC power bus of the inverters, ARCON STM 150 detects it and an uninterrupted commutation sequence is started thanks to the 2 thyristor pairs TH1 and TH2. After 2 seconds, if the AC power bus of the inverters is back to normal, the loads are reconnected without cut-off, to the inverter system.

1.2.2. OFF-LINE CONFIGURATION Operating principle Fig.1 shows the operating principle of this second configuration. Normally, the loads are supplied by the auxiliary source. The inverters set in parallel are running in a no-load mode and synchronised to the mains by means of a the SY process located in the ARCON STM 150. ARCON STM 150 monitors permanently the MAINS and in case of any fault detected, an uninterrupted commutation sequence is started thanks to the 2 thyristor pairs TH1 and TH2. 5 seconds after the AC mains returns to normal, the loads are reconnected, without cut-off to the mains. For detailed description of available controls, monitoring functions and operation please, refer to the appropriate section.



2. Technical datasheet

120VAC version 230VAC version

1. Input specifications

Operating voltage range 95 up to 150 Vrms 180 up to 275 Vrms

Input frequency range (Selectable) 47,5…52,5 Hz or 57,5…62,5 Hz

2. Maximum permanent current 180A (assisted cooling)

3. Transfer performance

Maximum voltage interruption 60 µsec to 5 msec (Typical : 2 msec)

Total transient voltage duration (max) 60 µsec to 10 msec (Typical : 3 msec)

4. Efficiency at full load > 99%

5. Voltage conformity (rms, For 230Vac / 120Vac)

Maximum mains, adjustable 125…150V 250…275V

Minimum mains, adjustable 95…110V 180…210V

Minimum inverters, adjustable 95…110V 180…210V

Maximum inverters, adjustable 125…150V 250…275V

Load level to come back after overload 75…95%

ETS300 386-2 standard when not specified 6. Electro magnetic compatibility

Standards applied for immunity IEC 1000 4-2 / 4-3 / 4-4 / 4-5 / 4-6

Standards applied for emission FCC Patr 15 class A / CISPR 22 ClassB

7. Efficiency > 99% at nominal voltage and nominal resistive load 7. Temperature

Storage temperature - 40° to 80°C

Permissible ambient temperature - 20° to 50°C

8. MTBF > 400 000 h According to MIL-HDBK 217F method

9. Supervision possibility With SYS 3000 controller

10. Signalling and measurements LCD display (2 lines x 16 characters) + 3 LEDs 5 free potential contacts

11. Safety EN60950 / UL 1950 / UL 1778 (Rack)

12. Dimensions (W x D x H, mm) 438 x 410 x 135 (3U)

13. Weight (approximately) 12 Kg



3. Hardware and electrical installation Please refer to figure 2 of this manual for item identification and the simplified connection schematic figure hereunder. 1. Install the module in the dedicated cradle

(Mechanical fixing + AC connection + earth connections + alarm contact connections).

2. Fix the module to the cradle by screwing the front handles to the cabinet frame The module is installed and ready for being commissioned.

RDI bus Neutral

ARCON STM 150

Top view

Rear view Load output Inverter System Mains Input Ground blade

Figure 2. Mechanical view of the STM unit



4. Module operation

4.1. Commissioning

4.1.1. Starting with mains present: • Set the AC power ON

The ARCON STM 150 display gives the following indication: 'LOAD ON MAINS' • Set the DC power ON • Set the modules DC input breakers to "ON" • Start each inverter ON by pressing each local push button • Turn to "ON" the front switch for modules on the ARCON STM

The ARCON STM 150 display gives the following indication : "LOAD ON INVERTER" (If the ARCON STM is “ONLINE” configured) If the ARCON STM is configured in “OFF LINE“ each inverter starts and runs without load.

4.1.2. Starting without mains present: • Set the DC power ON

The ARCON STM 150 display doesn’t give indication • Set the modules DC input breakers to "ON" • Start each inverter ON by pressing each local push button • Turn to "ON" the front switch for modules on the ARCON STM

The ARCON STM 150 display gives the following indication: "MAINS FAILURE" and "LOAD ON INVERTER"

If the modules doesn’t start please refer to the troubleshooting section



4.2. Starting and running sequence As soon an AC voltage is connected to the mains terminal the auxiliary power supply starts. The front switch on/off is used to start the inverters modules of the system. The choice of configuration between “on line” and “off line” mode will govern the following steps. In “on line” mode:

• If the mains was present before starting the inverter, the load was supplied by the mains and will be supplied (without voltage interruption) by the inverter after the previous starting operation thanks to the transfer conduction from thyristor pair TH1 to TH2.

• If the mains was not present, the load was not supplied and will be supply by the inverters through the thyristor pair TH1 after the starting sequence.

In “off line” mode:

• If the mains was present before to start the inverter, the load was supplied by the mains and will remain supplied by the mains after the previous starting operation. The inverter runs and remains in this standby state until the mains stays in the voltage conformity range.

• If the mains was not present, the load was not supplied and will be supply by the inverter through the thyristor pair TH2 after the starting sequence.

The default-displayed values are:

- Output voltage (i.e. Vout = 230 Volts) - Position of the load : 'Load on inverter bus' or 'Load on mains'

The load position indicates the current path in the static switch (even if the output voltage is 0) By pressing the push button “MENU”, the user can display informations about the system or the ARCON STM unit. For more details on installation and commissioning please refer to this section. In case of trouble please refer to the section "Troubleshooting".



5. User interface The User interface is based on : - an LCD display (2 lines 16 characters) to display measures and status messages - 3 push buttons: OFF, ON and Scrolling menu Please refer to figure 1 of this manual for more details. There are 4 operating modes in the user interface: 1. Display mode: displays different measurements Vout, F, I, P and load position 2. Parametric mode : display parameters which can be modified 3. Factory mode: displays information useful for service

4. Configuration mode: displays the configurable menus (languages, frequency and voltage)

Push button functions: ⇓ : To enter in factory mode Decrease the displayed value in parameter mode ⇑ : To enter in configuration mode Increase the displayed value in parameter mode ⇒ : Short time pressing go to next menu in the display mode Long time pressing will change from Display to Parametric mode and vice-versa



5.1. Display mode menu

Vout : 235 Vac Load on Mains

Vout : output voltage The inverter system is in stand by state The load is supplied by the mains (“off line” mode)

Vout : 235 Vac Load on Inv Bus

Vout : output voltage The load is supplied by the inverters (“on line” mode)

If only the mains is present:

Vout : 235 Vac Load on Mains

Vout : voltage of the mains The load is supplied by the mains

If only the AC of inverters is present and mains not present when the system is started:

Vout : 235 Vac Load on Inv Bus

Vout : voltage of the inverter system The inverter is ON and the message “Load on Inv Bus” appears alternatively with the message “mains failure”

The previous screen are default displays. Briefly pushing the button the following screen can be seen if the system is running: Output power (load power) Output current (current load)

P out : 8.6kW I out : 37A



Each brief pushing of the button allows to display the other following screens:

Synchro State : (Not) Synchronised

Mains voltage

Inverter system voltage

V(Mains): 235V V(Inv Bus) : 232V

This screen shows if the inverter system is (or not) synchronised

This screen displays the functional mode chosen

STM Mode: ON (OFF) LINE

Temp. : temperature on the heat sink power

Freq. : measured grid frequency (or inverter system frequency if mains not present)

Temp.: 57°C Freq.: 50.41Hz

ARCON STM configuration

Serial number and software version

Config 230V / 50Hz SN 05111111 V3.38

Brief pushing button “menu” after this screen goes back on the first screen


5.2. Parametric mode menu

• Pressing more than 2 seconds the button → activates the parametric mode menu. • Pressing more then 2 seconds the button →, user will EXIT the parametric mode menu

and activate the display mode. Please note that all parameters you have modified will be recorded when you exit from the menu.

Pressing the keys ↑ and ↓ it is possible to choose between the ON LINE and OFF LINE mode. (Note: the change of mode can be used to test the transfer availability)

Synchro Mode: >> ON LINE

After the previous screen, pushing briefly the key , the user can see all the following menus and modify the parameters:

The contrast can be modified to higher or lower values with the keys ↑ and ↓

Contrast: >> 50

Menu to set the max voltage of mains over which the mains is not conform. This voltage can be set : - in the range 250…275V (230VAC version, factory value 264V) - in the range 125….150V (120VAC version, factory value 145V)

Vconform Mains Max >> 264Vac (135)

Menu to set the min voltage of mains under which the mains is not conform. This voltage can be set : - in the range 180…210V (230VAC version, factory value 195V) - in the range 95…110V (120VAC version, factory value 100V)

Vconform Mains Min >> 195Vac (100)

Menu to set the max output voltage of inverter over which the inverter is not conform. This voltage can be set : - in the range 250…275V (230VAC version, factory value 264 V) - in the range 125….150V (120VAC version, factory value 145V)

Menu to set the min output voltage of inverter under which the inverter is not conform. This voltage can be set : - in the range 180…210V (230VAC version, factory value 195 V) - in the range 95…110V (120VAC version, factory value 100 V )

Vconform Inv Bus Min >> 195Vac (100)

Vconform Inv Bus Max >> 250Vac (135)



Menu to set the percentage Imax under which the load come back to the inverter system. This percentage can be set in the range 75..95% (the factory value is 90%)

Overload return 90%

Briefly pressing the key the following menu is only activated if the payment protection is activated.

To introduce the code to deactivate the protection (3 first figures) Remaining running time in minutes (step of 10 min)

Code: >>025 253 Time: 11620

To introduce the 3 last figures of the code

Code: 025 >> 253 Time: 11620

Briefly pressing the key the following menu is activated

Allows the user to Activate or De-activate the mains fail alarm. This feature is used to de-activate alarm when no AC input is connected to the system, to avoid having a continuous alarm when NO mains is installed.

Mains Fail Alarm >> Active


Note: In case the mains is present once, alarm will be automatically re-activated. System will consider the AC has been connected. Alarm can be de-activated through the menu again. Next push on key will come back to the first screen in parametric mode. Pressing the key during 2 sec allows to store the parameters in EEPROM and to come back in visualisation menu.



5.3. Configuration mode menu Pressing more than 2 sec on key ↓ allows to enter in the first menu in configuration mode.

To select a language (7 choices: English, Français, Deutch, , Italiano, Nederlands, Espanõl)

Language English

To introduce the selected voltage (230 or 115V) and the frequency range (50 or 60 Hz)

Freq Vout Range >>50Hz 230V

5.4. Menu summary (display and parametric menus)

Press the scrolling key to go to next menu in display mode. Press on the scrolling key more than 2 sec. to switch between display / parametric mode.

Press the key Up or Down to increase or decrease values. Press the key Up 2 sec. to enter in the configuration mode. Press the key Down 2 sec. to enter in factory mode.

Parametric mode

Vout : output voltage Load supplied by mains / inverters Output power (Load power) Output current (Load current) Mains voltage Inverter system voltage Inverter system synchronized (or not) Functional mode chosen Temperature of heat sink Measured grid frequency ARCON STM configuration Serial number and software version

Choose between mode : ON LINE or OFF LINE (Up / Down keys) Modify contrast Set maximum mains conform voltage Set minimum mains conform voltage Set maximum inverter conform voltage Set minimum inverter conform voltage Set percentage of Imax under which the load comes back to inverters Activates or de-activates the “Mains fail alarm” (In case no AC mains is connected to the system)

Display mode



6. Protection and alarms

6.1. Internal electronic protection The ARCON STM 150 static switch is provided with internal electronic protections. All thyristors will open if the current is above 450A for 50 periods.

6.2. Fuses protection The ARCON STM 150 static switch controller is internally protected by fuses (Type : T-2A).

6.3. Remote control and ARCON STM free potential contacts. A remote control is available on the connector located on the rear side of the unit Function is to Start / stop remote of inverters via external potential free contact

If the remote ON / OFF switch is not used, the pins must be short circuited Free potential contacts are available for alarms if a controller SYS 3000 is not used in the system Information concerning the system status are displayed on the ARCON STM 150 LCD: the load position (mains or inverter), the functional mode (“on” or “off” line) and other usual measurements of inverter system (see the “menu” section).

6.4. Payment protection Payment protection is deactivated when the ARCON STM leave the factory. It is only activated for customers in chronic state of overdue payment. The protection only can be deactivated introducing the apposite code the customer can get from CE+T after payment (each inverter has its own code). See the menu “payment protection” in parametric menu to deactivate the protection. When the protection is deactivated it becomes quite invisible for the user. When the protection is activated, the message “limited working” is displayed every 5 seconds. After running 90 days, the protection avoids to start the module the module becomes unusable. If the module runs when the time limit is reached, it continues to run but gives alarms each 10 seconds with alarm relay and is definitively stopped after the first stop after that it is impossible to restart the module without having to deactivate the protection.



7. Troubleshooting guide With an ARCON STM 150 the system can only start switching “ON” the local switch of the ARCON STM but only after the local ON push button of each inverter is switched ON. If the system don’t start after the previous verification please contact your supplier.

7.1. Alarms and display status (Messages list) The unit ARCON STM 150 can take a decision to transfer the load on the emergency source for internal or external reason. The errors list gives the various reasons to display alarms messages. In case the user identifies an internal fault in the ARCON STM 150, the unit has to return in factory for inspection: please contact your supplier.

7.2. Error message list Major alarms: Cable not conn. An internal cable is not connected

Inv Switch Fail The inverter thyristor pair has a problem (the ARCON STM is locked)

Mains Switch Fail The mains thyristor pair has a problem (the ARCON STM is locked)

Cable disconnect The internal flat cable X9 is not connected (load is supplied by mains)

RDI Bus Error The RDI bus is not connected

Mains Failure Mains failure (in the “off line” mode)

Inv Bus Failure Inverter fault ( in the “on line” mode)

Mains Not Conform Mains voltage out of range (in the “off line” mode)

Inv Bus Not Conform Inverter voltage out of range ( in the “on line” mode)

OVERLOAD Imax Inverter current > I nominal (when the load is supplied by mains in both modes)

Vout Not Conform no voltage (or bad) on load ( in both mode)

BAD CONFIG The inverter system and the ARCON STM have different frequency

Freq out of Rang Frequency is outside of the specified range

Inv Bus off The inverter is switched off by the local front switch or by the SYS 3000 controller

(Major alarm in "on line mode)



Minor alarms:

This single Minor alarm can appear on the first line of the display in Blinking mode: Out of synchro Inverter system not synchronised

Other Minor alarms can appear on the second line of the display in Blinking mode: Time elapsed The running time in relation with payment protection is elapsed

Limited running The payment protection is activated.

Overload Imax I > I nominal of the inverter

Imminent Switch Imminent supply by mains (after 5" in Off line mode)

Mains Failure Mains failure (in “on line mode”)

Inv Bus Failure Inverter system fault (in “off line mode”)

Mains Not Conform Mains voltage out of range

Inv Bus Not Conform System inverter voltage out of range (in “off line” mode)

Inv Bus off The inverter is intentionally switched off by the local front switch or by the SYS 3000

controller.

Overload back Switch Come back of the load to the inverter system if the overload disappears and the load

actual value is under the set load threshold (between 75 and 95% of the nominal

value) otherwise the load remains on mains.

Module defect One module is stopped or out of order

7.3. Menu in Factory mode. Factory mode is a helpful menu for our engineers when you are in contact with them to analyse a specific problem on site. By giving those information to our R&D engineers they can help you and focus directly to your problem. To enter in Factory mode press the push button ↑ for at least 2 seconds.



8. How to order ? Model : ARCON STM150 STATIC SWITCH FOR RDI INVERTER Part Number : V510489028 + V515000950 With the module are included following accessories : Description Part Number 1. 19 INCHES MOUNTING BRACKETS / EQUERRES 19 POUCES 2399034610

2.V515000590 Lexan labeled « Emerson »



9. APPENDIX : ARCON STM 150 FAILURE SHEET REPORT GENERAL

The scope of this sheet is to receive as much as information to identify the reasons and gives

to the user a report on what happened in this faulty case. Further to this it will help our service

and quality department to improve the quality of our products. Please fill this document

carefully and return it with the defect unit or FAX it to your supplier.

Defective unit sheet

Configuration Answer

Number of inverter installed in the system :

Module type and model :

Serial module number :

SYS3000 installed in the system ;

Model and serial number of the ARCON STM150 in the system : Fault description : Please describe the fault conditions, type of load, output current

Message on the LCD display

Inverter module LCD :

ARCON STM150 LCD :

Contractor :

Date :

Contact : Visa :

RETURN this document with the unit.

ees arcon stm150 operation manual

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operating mode

configuration mode menu

display mode menu

parametric mode menu

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menu summary display

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online configuration