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UPS Models 

MST 30 

MST 40 

BATTERY CHARGER STAGE 

 

Nominal voltage 

±

240Vdc 

Maximum  recharge  current

 (6)

 

10A  

Battery charger algorithm 

Two levels with temperature compensation 

Technology 

Analogue switching current under 

µ

P control  

(PWM voltage and charge current adjustment) 

Input voltage tolerance for recharging at 
maximum current 

345-480Vac 

MODES AND EFFICIENCY 

Operating modes 

True on line double conversion 

ECO mode 

Smart Active mode 

Stand By Off (Emergency) 

Frequency Converter (with batteries) 

AC/AC performance in on line mode 

Up to 96.5% 

AC/AC performance in Eco mode 

 99% 

OTHER FEATURES 

Noise 

 48dB(A)  

Colour  

RAL 7016 

Ambient temperature 

(7)

 

0 – 40 °C  

 

 

(1)

  

@ 100% load & THDv 

 1% 

(2) 

In order to keep the output voltage within the indicated precision range, a recalibration may be necessary, following a long period of use. 

 

(3) 

If the mains frequency is within ± 5% of the selected value, the UPS is synchronised with the mains. If the frequency is out of the tolerance 
range, or in battery operation, the frequency will be the se0.01%

 

(4) 

Mains/Battery @ 0% -100% load

 

(5) 

@ Mains / battery / mains @ 0% / 100% / 0% resistive load 

(6) 

The recharge current is adjusted  automatically,  depending on the capacity of the battery installed.  

(7)

  

20 – 25 °C for a longer battery life 

 

 

 

 

Summary of Contents for MST 30

Page 1: ......

Page 2: ...andards in force No hazardous materials such as CFC HCFC or asbestos are used in this product When evaluating packaging the choice of material has been made favouring recyclable materials For correct...

Page 3: ...PALLET 15 PRELIMINARY CONTENT CHECK 16 POSITIONING THE UPS 16 OPERATIONS TO ACCESS THE TERMINALS OF THE UPS 16 ELECTRICAL CONNECTIONS 17 DIAGRAMS OF CONNECTIONS TO THE ELECTRICAL SYSTEM 17 UPS INTERN...

Page 4: ...XILIARY POWER SUPPLY FOR AUTOMATIC BYPASS 35 AUXILIARY POWER SHARE AND POWER OUT SOCKETS OPTIONALS 35 POWER WALK IN 35 POWER REDUCTION FOR 200 208V PHASE NEUTRAL LOADS 35 CONFIGURING THE UPS 36 COMMUN...

Page 5: ...CT SOURCE ensures low input distortion a power factor close to 1 and maximum generator set compatibility BATTERY CARE SYSTEM allows a customised management for different battery types and their contin...

Page 6: ...FRONT VIEWS OF THE UPS Control panel with graphic display Wheels for moving the UPS Front door with lock Brake rod Ventilation grid...

Page 7: ...te bypass isolator optional Manual bypass isolator Output isolator From the left Battery start button COLD START R E P O Remote Emergency Power Off connector Contact holder for AS400 USB communication...

Page 8: ...NS Power connections EXTERNAL BATTERY INPUT SEPARATE BYPASS optional OUTPUT Connection for external synchronization signal Connection for remote maintenance bypass command Connection for external Batt...

Page 9: ...REAR VIEW OF THE UPS Parallel board slot optional Power board fans Powershare socket Power out socket optional Battery charger fan Power relay board slot optional...

Page 10: ...r LED Low battery LED Battery power LED ECO mode LED Load on bypass LED Graphic display Stand by alarm LED F1 F2 F3 F4 FUNCTION KEYS The function of each key is indicated at the bottom of the display...

Page 11: ...TRANSFORMER INSTEAD OF THE BATTERIES This series of UPS uses an isolation transformer connected to the UPS output terminals NOTE A separate bypass line is supplied on this UPS version The transformer...

Page 12: ...attery 1 1 4 kW 1205 kcal h 4780 B T U h 1 5 kW 1290 kcal h 5120 B T U h Dissipated power with nominal distorting load pf 0 7 and charged battery 1 1 34 kW 1150 kcal h 4565 B T U h 1 35 kW 1160 kcal h...

Page 13: ...ient temperature remains between 0 and 40 C while the UPS is operating This UPS can operate with an ambient temperature between 0 and 40 C The recommended working temperature for the UPS and the batte...

Page 14: ...Do not open the battery fuse holder while the UPS is powering the load in battery operation mode The interruption of the battery DC may cause an electrical arc resulting in broken equipment and or fi...

Page 15: ...USP door Remove the 2 brackets securing the UPS to the pallet by unscrewing the screws marked A and B in the figure The previously removed brackets can also be used as slides Secure the slides to the...

Page 16: ...w the air blown by the ventilation fans to outflow correctly No objects should be placed on its upper surface Once the equipment has been positioned secure it with the apposite brake rod see Front vie...

Page 17: ...ral PE protective earth of TT TN or IT type Therefore the phase rotation must be respected Optional TRANSFORMER BOXES to convert the distribution systems from 3 wires to 4 wires are available DIAGRAMS...

Page 18: ...S with no modification of the neutral regime and with separate bypass input UPS with input galvanic isolation and with separate bypass input UPS with output galvanic isolation and separate bypass inpu...

Page 19: ...er to the same potential In case the two power supplies were different an isolation transformer would be necessary on one of the inputs UPS with no modification of the neutral regime and with separate...

Page 20: ...values also depend on the UPS operating status at the time of the fault which can be either UPS in NORMAL OPERATION the load is instantly commutated to the bypass line UPS 30kVA I 2 t 20000A 2 s UPS 4...

Page 21: ...er supply is connected to the neutral of the UPS output This way the neutral regime of the equipment is not modified THE INPUT NEUTRAL IS CONNECTED TO THE OUTPUT NEUTRAL THE DISTRIBUTION SYSTEM THAT P...

Page 22: ...an be inserted in the terminal board is 25 mm2 for trailing cables 35 mm2 per rigid cables CONNECTIONS As for UPSs with separate bypass please see the subsequent paragraph The very first connection to...

Page 23: ...L TO THE INPUT OR BYPASS NEUTRAL Connect the input and output cables to the terminal board as shown in the figure below Note 1 The protection conductor earth cable connection must be carried out throu...

Page 24: ...g device the UPS enters stand by mode see USE section and powers off the load completely The R E P O circuit is self powered with SELV type circuits Therefore no external power supply voltage is requi...

Page 25: ...UPS Use cables with cross sections in compliance with the indications given in the Cross section of the cables paragraph In order to connect the SERVICE BYPASS terminal to the auxiliary contact of th...

Page 26: ...ake sure that SWBATT fuse holders of the UPS and Battery Box are open Before making any connection read carefully the instructions in the Battery Box manual Connect the cables coming from the Battery...

Page 27: ...ns may cause faults or breakdowns of the equipment As for installation connect the cable included in the special kit optional to the EXT T_BATT connector see Views of the UPS connections following the...

Page 28: ...tery efficiency The UPS block diagram is shown below with a description of its individual components UPS block diagram IMPORTANT Our UPSs are designed and built for long durability even under the most...

Page 29: ...h the instructions given in Connecting the UPS to the Battery Box optional paragraph the battery fuses and other protections may result damaged In that case please contact the Customer Service departm...

Page 30: ...cations on the terminal board Close the protective panel again Repeat the preliminary operations given in the previous page Press the button to access the start up menu Press YES when requested to con...

Page 31: ...and the display will turn on Press the button to access the start up menu When requested to confirm press YES and then press the button again to confirm All LEDs on display will turn on for about a s...

Page 32: ...es containing all the data referred to the menu chosen UPS STATUS ERRORS FAULTS This area of the display shows the UPS operating status The first line is always active and constantly shows the current...

Page 33: ...MENU DISPLAY...

Page 34: ...alified personnel may cause harm to the operator and damage to the equipment Listed below are the operations to be performed in order to carry out the maintenance on the equipment with no interruption...

Page 35: ...ut socket is connected directly to the UPS output and it is useful to power accessories such as modems for example Safety notes when the UPS is switched on if the output isolator SWOUT is opened the s...

Page 36: ...Autonomy limitation Sets the maximum time of battery operation Disabled Disabled complete battery discharge 1 65000 in steps of 1 sec SW Low battery pre alarm Sets the estimated autonomy time left fo...

Page 37: ...hronisation source for the inverter output From bypass line From bypass line From external input SW Start up delay Waiting time for automatic restart after the mains power supply has been restored 5 s...

Page 38: ...CONNECTOR USB CONNECTOR PIN NAME TYPE SIGNAL PIN SIGNAL 1 IN 1 VBUS 2 TX OUT TX serial line 2 D 3 RX IN RX serial line 3 D 4 4 GND 5 GND POWER 6 OUT 7 8 15V POWER Isolated power supply 15V 5 80mA max...

Page 39: ...ins voltage the UPS resumes operating from the inverter If the jumper is removed in absence of the mains voltage the UPS resumes operating from the battery 4 5 12 BATTERY LOW OUTPUT 1 Indicates that t...

Page 40: ...This signal is made when the UPS commutates to bypass in order to compensate the surge current due to the insertion of a distorting load Sound C This signal is emitted when the UPS switches to batter...

Page 41: ...ation port of the PC via the serial cable provided or connect the USB port of the UPS to a USB port of the PC using a standard USB cable Download the software from www riello ups com selecting the des...

Page 42: ...nce of this connection could damage the UPS and the load Connect the mains to the terminals following the indications in the paragraph on Installation THE ISOLATOR BEHIND THE DOOR SWIN IS OPEN Close t...

Page 43: ...off and back on again and exclude the maintenance bypass If the problem persists contact the nearest service centre PHASE 1 HAS A MUCH LOWER VOLTAGE THAN THE OTHER TWO PHASES Open the SWIN switch on t...

Page 44: ...RIES ARE DISCHARGED THE UPS WAITS FOR THE BATTERY VOLTAGE TO EXCEED THE SET THRESHOLD Wait for the batteries to recharge or force startup from the SYSTEM ON menu THE DISPLAY SHOWS ONE OR MORE OF THE F...

Page 45: ...HIGHER THAN 40 C HEAT SOURCES CLOSE TO THE UPS VENTILATION SLITS OBSTRUCTED OR TOO CLOSE TO THE WALLS FAULT IN THE TEMPERATURE PROBE OR IN THE BATTERY CHARGER COOLING SYSTEM Eliminate the cause of th...

Page 46: ...d S09 Ready for start up S10 UPS locked load not powered S11 UPS locked load on bypass S12 BOOST stage or battery charger locked load not powered S13 Frequency converter load powered by inverter Comma...

Page 47: ...f tolerance limits A18 Voltage on bypass line out of tolerance limits A19 High current peak on phase 1 output A20 High current peak on phase 2 output A21 High current peak on phase 3 output A22 Load o...

Page 48: ...sense of the bypass phases F14 Inverter phase 1 sine curve distorted F15 Inverter phase 2 sine curve distorted F16 Inverter phase 3 sine curve distorted F17 Inverter stage anomaly F19 Positive batter...

Page 49: ...nverter overvoltage L17 Phase 1 inverter undervoltage L18 Phase 2 inverter undervoltage L19 Phase 3 inverter undervoltage L20 Continuous voltage at inverter output or Sine curve of Phase 1 inverter di...

Page 50: ...minal apparent output power 30kVA 40kVA Nominal active output power 27kW 36kW Output power factor 0 9 Short circuit current 1 5 x In for t 500ms Precision of output voltage referred to a 400Vac output...

Page 51: ...n on line mode Up to 96 5 AC AC performance in Eco mode 99 OTHER FEATURES Noise 48dB A Colour RAL 7016 Ambient temperature 7 0 40 C 1 100 load THDv 1 2 In order to keep the output voltage within the i...

Page 52: ...0MNMSTK30RU5LUA...

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