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AEG UPS 10 kVA User Manual Download Page 51

OMD94016 REV. 
C 

51

 

 

Alarm 

A32  EPO BUS CLOSED 

Description 

The system is blocked due to the activation of the 
emergency power off button. 

Possible 
causes 

•

 

Activation of the (local or remote) emergency power off 
button. 

Solutions 

1) Release the emergency power off button and reset the 

alarm. 

2) If the alarm persists, contact our Technical Support 

Service. 

 

Alarm 

A33  ASYMMETRIC LOAD 

Description 

The positive and negative voltages measured on the DC 
capacitors towards the middle point are different. 

Possible 
causes 

•

 

Possible failure on the measuring circuit. 

•

 

Possible fault of DC capacitors. 

Solutions 

1) Reset the system. 
2) If the alarm persists, contact our Technical Support 

Service. 

 

Alarm 

A34  SERVICE REQUIRED 

Description  A UPS check is necessary. 

Possible 
causes 

•

 

Possible UPS fault. 

Solutions 

1) If the alarm persists, contact our Technical Support 

Service. 

 

Alarm 

A35  DIESEL MODE 

Description  The UPS is supplied by the diesel generator. 

Possible 
causes 

•

 

The auxiliary contact which activates the diesel generator 
connected to the UPS is closed, and imposes this 
operating mode. 

Solutions 

1) Wait for the diesel generator to stop as soon as the 

mains voltage is restored.  

2) Check the connection of the auxiliary contact which 

signals the diesel generator start, to terminals XD1/XD2. 

3) If the alarm persists, contact our Technical Support 

Service. 

 

 

 

Summary of Contents for UPS 10 kVA

Page 1: ...UPS USER MANUAL EN UPS 10 kVA UPS 15 kVA UPS 20 kVA AEG HE ...

Page 2: ...2 OMD94016 REV C ...

Page 3: ...OMD94016 REV C 3 WARNING This is a Class A UPS Product In a domestic environment this product may cause radio interference in which case the user may be take additional measures ...

Page 4: ...3 3 2 Bypass operation 13 3 3 3 Battery operation 13 3 3 4 Manual bypass 14 3 4 CONTROL AND OPERATION DEVICES 16 3 4 1 Isolators dc input and ac output 16 3 4 2 Emergency power off button epo 16 3 4 3 Normal bypass selector 17 3 4 4 Lcd control panel 17 4 Front panel 18 4 1 FUNCTION BUTTONS 18 4 2 FUNCTION OF MIMIC PANEL LED S 19 5 Handling the lcd panel 22 5 1 MAIN MENUS 22 5 2 MEASURE DISPLAY 23...

Page 5: ...METERS 33 6 6 UPS TEST 33 6 7 BATTERY TEST 34 6 8 SYSTEM RESET 34 6 9 ALARMS HISTORY RESET 35 7 System information 36 7 1 PARALLEL OPERATION INFORMATION 37 7 1 1 Ups position 37 7 1 2 Master slave priority 38 7 1 3 Communication bus monitoring 38 7 1 4 Parallel type 39 7 1 5 Message statistics 39 7 2 SERVICE INFORMATION 40 8 Faults and alarms 41 8 1 OPERATING STATUS DEFINITION 41 8 2 TROUBLESHOOTI...

Page 6: ...tery operation 14 Figure 5 Manual bypass 15 Figure 6 UPS front panel 18 Figure 7 UPS mimic panel 19 Figure 8 Structure of MEASURES menu 1 of 2 23 Figure 9 Structure of MEASURES menu 2 of 2 24 Figure 10 Structure of ALARMS menu 25 Figure 11 Structure of SPECIAL menu 29 Figure 12 Structure of INFO menu 36 INDEX OF FIGURES ...

Page 7: ...is manual and any other supporting technical documentation relating to the product must be stored and made accessible to personnel in the immediate vicinity of the UPS FURTHER INFORMATION In the event that the information provided in this manual is not sufficiently exhaustive please contact the manufacturer of the device whose details are available in the Contacts section 1 SCOPE ...

Page 8: ... TO DEVICE FAILURE Potentially hazardous situations may arise in case of UPS failure Do not use the device if visibly damaged Maintain the device regularly to identify possible failure POSSIBLE DEVICE DAMAGE Whenever work is carried out on the device make sure all actions are taken in order to avoid electrostatic discharges which might damage the electronic components of the system READ THE TECHNI...

Page 9: ...he battery autonomy time This configuration guarantees the best service to the user as it supplies clean power uninterruptedly ensuring voltage and frequency stabilization at nominal value Thanks to the double conversion it makes the load completely immune from micro interruptions and from excessive mains variations and prevents damage to critical loads Computer Instrumentation Scientific equipmen...

Page 10: ... harmonics circulation The rectifier is so sized as to supply the inverter at full load and the battery at the maximum charging current 3 2 2 INVERTER It converts the direct voltage coming from the rectifier or from the DC battery into alternating AC voltage stabilized in amplitude and frequency The inverter uses IGBT technology with a high changeover frequency of approximately 15 KHz The control ...

Page 11: ...YPASS The Static Bypass allows for transfer of the load between Inverter and Emergency Mains and vice versa in a very short time and uses SCR s as power commutation elements 3 2 5 MANUAL BYPASS The Manual Bypass is used to cut off the UPS completely supplying the load directly from the input mains in case of maintenance or serious failure FOLLOW THE PROCEDURES CONTAINED IN THE MANUAL The sequence ...

Page 12: ... maintenance bypass The rectifier is supplied by the AC three phase input voltage which in turn feeds the inverter and compensates mains voltage as well as load variations keeping the DC voltage constant At the same time it keeps the battery charged floating or boost charge depending on the battery type The inverter converts the DC voltage into an AC sine wave with stabilized voltage and frequency...

Page 13: ...ation An alarm is activated when the battery is near the minimum discharge value In case the supply is restored before the battery is completely discharged the system will be switched back to normal operation automatically In the opposite case the inverter shuts down and the load is switched to the bypass line bypass operation If the bypass line is not available or is out of tolerance the load sup...

Page 14: ...ge has reached a programmed threshold after the rectifier restart Man Inverter the output supply is NOT restored automatically The system requires a confirmation to restart which can only be done manually by the user via the front panel 3 3 4 MANUAL BYPASS The manual bypass operation is necessary whenever the UPS functionality is tested or during maintenance or repair work During the manual bypass...

Page 15: ... The sequence of manual bypass switching and return must be carried out with respect to the procedure indicated in the installation and start up section The manufacturer cannot accept responsibility for damage arising from incorrect operation Figure 5 Manual bypass ...

Page 16: ...isolate the power components of the device from the AC supply line from the storage battery and from the loads VOLTAGE PRESENT ON TERMINALS The isolators do not isolate the UPS completely where the AC line and battery voltages are still present on the terminals Before carrying out any maintenance on the unit Isolate the device completely by operating the external circuit breakers Wait at least 5 m...

Page 17: ...OW THE PROCEDURES CONTAINED IN THE MANUAL The Normal Bypass selector shall only be operated in accordance with the procedures specified in the installation and start up section The manufacturer cannot accept responsibility for damage arising from incorrect operation 3 4 4 LCD CONTROL PANEL The control panel of the UPS is used in order to Check the operating parameters of the device Check the alarm...

Page 18: ... BUTTONS The front panel of the UPS is provided with 5 buttons whose functions are indicated in the following table Button Assigned functions Scrolls up the menus Increases the values by one unit Selects a value Scrolls down the menus Decreases the values by one unit Selects a value Selects a menu Confirms changes Silences the buzzer activated due to an alarm or a failure Returns to the previous m...

Page 19: ...se rotation OFF AC mains failure on rectifier input LED 2 GREEN AC bypass line within tolerance GREEN Wrong phase rotation OFF AC bypass line out of tolerance AC bypass line failure LED 3 GREEN Rectifier off or faulty RED DC voltage out of tolerance GREEN Rectifier on and DC voltage within tolerance Figure 7 UPS mimic panel ...

Page 20: ...thin tolerance and static switch closed GREEN Inverter overload or short circuit OFF Inverter off or voltage out of tolerance LED 6 ORANGE Re transfer blocked ORANGE Static bypass switch closed OFF Static bypass switch open LED 7 GREEN Output circuit breaker OCB closed OFF Output circuit breaker OCB open LED 8 ORANGE Manual bypass switch MBCB closed OFF Manual bypass switch MBCB open LED 9 RED Eme...

Page 21: ...OMD94016 REV C 21 LED 10 ORANGE Maintenance request slow flashing ORANGE Critical alarm fast flashing OFF Normal operation ...

Page 22: ... NAME MEASURES UPS measures regarding basic parameters voltage current etc UPS NAME ALARMS UPS operating status possible alarms present and alarms history UPS NAME SPECIAL Setting of parameters and special functions UPS NAME INFO General information regarding the UPS 5 HANDLING THE LCD PANEL ...

Page 23: ...OMD94016 REV C 23 5 2 MEASURE DISPLAY The MEASURES menu is structured as follows Figure 8 Structure of MEASURES menu 1 of 2 ...

Page 24: ...tage 1 BYPASS Voltage 1 2 1 V Frequency 0 1 Hz INVERTER Voltage 1 2 1 V Frequency 0 1 Hz AC DC Rectifier output voltage 1 V BATTERY Voltage and current 1 V 1 A Nominal capacity 1 Ah Residual autonomy 1 min 1 1 The voltage measures are always referred to the phase to neutral value 2 The three voltages are displayed in one screen as xxx yyy zzz V 3 The three line currents are displayed in one screen...

Page 25: ...icator if enabled is activated to show the occurred failure The audible alarm is silenced pressing the key BUZZER UPS STATUS alarm status no 1 Display of the first alarm present if no alarm is present the operating status is displayed UPS STATUS Last alarm status Press the key to browse the menu and to go to the next alarm status in alphabetical order AUTOMATIC ERASURE OF ALARMS Should an alarm oc...

Page 26: ...y of stored events is displayed on the first line xxx YYY which contains the data currently displayed position in the list and the total number of stored data maximum number equal to 250 respectively An asterisk indicates the automatic reset of the alarm HISTORY 001 015 Latest event stored in order of time E g automatic reset of alarm A3 BOOSTER STOPPED A3 26 10 10 20 05 002 015 Immediately prior ...

Page 27: ... FAULT A36 DC FASTSHUTDOWN A11 SHORT CIRCUIT A38 INV LOAD A12 STOP TIMEOUT SC A39 INV ERROR LOOP A13 INV OUT OF TOL A40 SSI FAULT A14 BYPASS WR SEQ A41 RECT ERROR LOOP A15 BYPASS FAULT A43 CURR ERROR LOOP A16 BYPASS LOAD A46 PAR LOST REDUND A17 RETRANSFER BLOCK A47 SEND PARAM ERROR A18 MBCB CLOSED A48 RCV PARAM ERROR A19 OCB OPEN A49 TEST MODE ERROR A20 OVERLOAD A50 SSW BLOCKED A21 THERMAL IMAGE A...

Page 28: ...played in ascending order when the ALARMS STATUSES menu is entered The alarms are shown when they are present and must be silenced with the buzzer The alarms remain displayed whilst they are present and they are automatically stored in the event log with date and time DESCRIPTION OF ALARMS AND STATUSES For a more detailed description of the alarms and statuses see the Faults and alarms section of ...

Page 29: ...OMD94016 REV C 29 Some operating parameters of the UPS can be set via the SPECIAL menu which is structured as follows 6 SETTINGS AND ADVANCED OPERATIONS Figure 11 Structure of SPECIAL menu ...

Page 30: ...me PASSWORD PROTECTED ACCESS The SETTINGS menu is protected by a password set by the factory in order to prevent access to unauthorized personnel We recommend minimum disclosure of the access password Changes to the operating parameters and starting operations on the UPS may be potentially dangerous for the device and for persons 6 1 SETTING DATE AND TIME Date and time may be set via the CLOCK men...

Page 31: ...ry circuit breaker BCB is not closed when requested in the start up phase In this case the system will start considering the battery completely discharged and activating the alarm A10 BATTERY FAULT To set the battery autonomy to 100 it is necessary to access the menu and press the button to confirm 6 4 BATTERY CONFIGURATION In case the UPS has been tested without knowing the characteristic data of...

Page 32: ... RECHAR CURR SET 18 The single digits can be modified via the arrow keys and confirmed by pressing ENTER CONFIRM RECHAR CURR YES Confirmation screen of the parameter set AUTONOMY BAT SETTING 0020 The single digits can be modified via the arrow keys and confirmed by pressing ENTER CONFIRM AUTON BATT YES Confirmation screen of the parameter set SAVE BATT SETTINGS YES Confirmation screen for the conf...

Page 33: ...nfirmed by pressing ENTER Parameter Standard Range MODBUS ADDRESS 1 1 O 247 6 6 UPS TEST The UPS TEST menu allows for the carrying out of a switching test of the inverter The inverter is switched off and the load is transferred to the bypass supply The inverter supply is automatically restored after a few seconds UPS TEST NO The value on the second line is ready to be changed 1x UPS TEST YES The p...

Page 34: ...fect the continuity of supply to the loads if the battery is not fully charged 6 8 SYSTEM RESET The UPS is equipped with internal protection which will block the system or some of its sections The alarm can be cleared and normal operation can be resumed via the RESET menu In case the failure persists the UPS will return to the previous failure condition In some cases a RESET is necessary to simply...

Page 35: ...witch blocked alarm A50 Booster shutdown due to the operation of the load symmetry sensor alarm A33 Activation of the battery fault alarm alarm A10 Scheduled maintenance request alarm A29 For a description of the UPS status in each of the failure conditions listed above please refer to the Faults and alarms section 6 9 ALARMS HISTORY RESET Access the RESET HISTORY menu RESET HISTORY NO The value o...

Page 36: ...36 OMD94016 REV C The INFO menu provides general information regarding the UPS based on the structure indicated below 7 SYSTEM INFORMATION Figure 12 Structure of INFO menu ...

Page 37: ...RALLEL 1 Data regarding the parallel configuration MODBUS MODBUS address of device FIRMWARE RELEASE Firmware versions installed on the system SERVICE Scrolling text string with information regarding technical service RUNNING HOUR Dates related to hours number of UPS running time 1 the menu is only active if the UPS belongs to a Parallel or Load Sync system 7 1 PARALLEL OPERATION INFORMATION The PA...

Page 38: ...cation between the UPS units composing the system The numbers represent the single UPS units The letters M and S stand for MASTER and SLAVE respectively The brackets around a letter indicate that we are working on that specific UPS unit A question mark next to a number indicates that that UPS unit is not communicating on the data bus Let us assume that we have the following situation system compos...

Page 39: ...e load REDUNDANT x means that the system is redundant and the redundancy index is indicated by number X For example in a system composed of 3 UPS units REDUNDANT 2means that only one of the UPS units is sufficient to feed the load 7 1 5 MESSAGE STATISTICS The statistics section regarding the messages exchanged on the communication buses consists of three different menus STATIST CAN SSW MSG RX 3256...

Page 40: ... percentage of reception accuracy regarding the status of the system The messages are exchanged between all the UPS units therefore the number will increase on all of them 7 2 SERVICE INFORMATION The SERVICE menu provides important information regarding the technical service on the UPS The information is displayed via a text string of max 60 characters which scrolls on the second display line Howe...

Page 41: ...t the operating statuses are displayed INJURY HAZARD DUE TO ELECTRIC SHOCK Before carrying out any operation on the UPS make sure that all the safety precautions are adhered to Any work on the unit must be carried out by qualified personnel Internal components can only be accessed after disconnecting the device from supply sources Always use protective devices designed for each type of activity Th...

Page 42: ...bypass Operating condition The synchronization between the inverter and the bypass is locked and the static switch can change over from one source to the other Status S6 BYPASS OK Description The bypass voltage and frequency are within the allowed range Operating condition The bypass line is ready for changeover in case of inverter failure Status S7 BYPASS LOAD Description Load fed by the bypass l...

Page 43: ...ersists contact our Technical Support Service Alarm A3 BOOSTER STOPPED Description The rectifier has been temporarily disconnected and the inverter is fed by the battery Possible causes Instability of the AC line voltage or frequency Possible fault in the rectifier control circuit Solutions 1 Check the parameters of the AC line voltage 2 Restart the device 3 If the alarm persists contact our Techn...

Page 44: ...vice Alarm A6 BATTERY IN TEST Description The rectifier voltage is reduced to start a short controlled discharge of the battery Possible causes A battery test has been started automatically if set or manually by the user Solutions 1 Wait for the test to end and check possible battery faults Alarm A7 BCB OPEN Description The battery isolator is open Possible causes Battery isolator open Solutions 1...

Page 45: ... mains failure Rectifier failure Solutions 1 Check which alarms are present and carry out the indicated procedures 2 If the alarm persists contact our Technical Support Service Alarm A10 BATTERY FAULT Description Fault following a battery test Possible causes Battery fault Solutions 1 Check the battery 2 Reset the system 3 If the alarm persists contact our Technical Support Service Alarm A11 SHORT...

Page 46: ...an alarm Inverter failure Solutions 1 Check which alarms are present and carry out the indicated procedures 2 If the alarm persists contact our Technical Support Service Alarm A14 BYPASS WR SEQ Description The phase rotation of the bypass line is wrong Possible causes Wrong connection of power cables Solutions 1 Check the phase rotation 2 If the alarm persists contact our Technical Support Service...

Page 47: ...stem 2 Check the in rush currents of the loads 3 If the alarm persists contact our Technical Support Service Alarm A18 MBCB CLOSED Description The manual bypass isolator is closed Possible causes Manual bypass isolator closed Solutions 1 Check the status of the manual bypass isolator 2 Check the functionality of the auxiliary contact of the isolator 3 If the alarm persists contact our Technical Su...

Page 48: ...ring circuit failure Solutions 1 Check the loads connected to the UPS output 2 Should you need to restore the inverter supply immediately reset the system 3 If the alarm persists contact our Technical Support Service Alarm A22 BYPASS SWITCH Description The Normal Bypass selector has been operated Possible causes Maintenance operation Solutions 1 Check the selector position 2 If the alarm persists ...

Page 49: ... fuses on the inverter bridge input 5 If the alarm persists contact our Technical Support Service Alarm A25 INVERTER OFF Description The inverter is blocked due an operation failure Possible causes Various Solutions 1 Reset the system 2 If the alarm persists contact our Technical Support Service Alarm A26 COMMUNIC ERROR Description Internal error Possible causes Micro controller communication prob...

Page 50: ... work Possible causes The time limit since the last maintenance work has elapsed Solutions 1 Contact our Technical Support Service Alarm A30 COMMON ALARM Description Common alarm Possible causes At least one alarm is present Solutions 1 Check which alarms are present and carry out the indicated procedures Alarm A31 MBCB BUS CLOSED Description The manual bypass isolator is closed Possible causes Ma...

Page 51: ... of DC capacitors Solutions 1 Reset the system 2 If the alarm persists contact our Technical Support Service Alarm A34 SERVICE REQUIRED Description A UPS check is necessary Possible causes Possible UPS fault Solutions 1 If the alarm persists contact our Technical Support Service Alarm A35 DIESEL MODE Description The UPS is supplied by the diesel generator Possible causes The auxiliary contact whic...

Page 52: ...e failure Solutions 1 Verify the status of the bypass line and check whether other alarms are present 2 If the alarm persists contact our Technical Support Service Alarm A39 INV ERROR LOOP Description The control is not able to regulate the inverter voltage precisely Possible causes Regulation system failure Solutions 1 Reset the system 2 If the alarm persists contact our Technical Support Service...

Page 53: ...ions 1 Reset the system 2 If the alarm persists contact our Technical Support Service Alarm A46 PAR LOST REDUND Description This alarm is only active on PARALLEL systems Continuity is not ensured in the event of a fault on one of the UPS units Possible causes The total load is higher than the maximum expected value Possible failure on the measuring circuit Solutions 1 Check the load fed by the sys...

Page 54: ...Reset the system 3 If the alarm persists contact our Technical Support Service Alarm A51 BATT TEMPERATURE Description The battery temperature is out of tolerance This alarm is only active when the temperature probe is installed and enabled on the battery Possible causes Anomalous temperature in the battery cabinet Possible failure on the measuring circuit Solutions 1 Check the temperature on the b...

Page 55: ...ier input voltage is unbalanced Possible causes Problems on the LV or MV distribution network Defect of the measuring circuit Solutions 1 Check the input voltage 2 Contact our Technical Support Service Alarm A63 START SEQ BLOCK Description During the UPS start up a failure prevented the proper execution of the sequence Possible causes Control devices in wrong position or operated improperly Possib...

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