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Xtreme Power Conversion Corporation

M90S Service Manual

Page 2

Uninterruptible Power Supply

Table of Contents

General Information.................................................................................... 4

Getting Started................................................................................................................................4

Important Safefty Instructions.........................................................................................................4

Electronic Specifications..............................................................................5

Environmental Parameters..............................................................................................................6

Functional Block...........................................................................................7

Working Pricipal of the Major Functional Block..............................................................................8

Switch Power Supply......................................................................................................................9

PFC/Booster....................................................................................................................................9

Inverter............................................................................................................................................9

Charger..........................................................................................................................................10

EMI Board......................................................................................................................................10

Function Explanations for Each PCBA..........................................................11

PFC Board (Power Factor Correct Board).......................................................................................11

INV Board (Inverter Board)............................................................................................................11

CNTL Board (Control Board)..........................................................................................................11

COMM Board (Communication Board)...........................................................................................11

IPOP Board....................................................................................................................................11

Pre-charger board.........................................................................................................................11

Parallel board................................................................................................................................11

Panel Main/LED/key board............................................................................................................11

EMI board......................................................................................................................................12

SPS board....................................................................................................................................12

STS main board..............................................................................................................................12

Interface board..............................................................................................................................12

Function Flow Chart...................................................................................12

Power on Mode.............................................................................................................................12

Standby Mode...............................................................................................................................13

Содержание M90S Series

Страница 2: ...l of the Major Functional Block 8 Switch Power Supply 9 PFC Booster 9 Inverter 9 Charger 10 EMI Board 10 Function Explanations for Each PCBA 11 PFC Board Power Factor Correct Board 11 INV Board Invert...

Страница 3: ...verter Mode 16 ECO Mode 17 Shutdown Mode 17 Trouble Shooting 17 LCD Panel Display Pattern Definition 1 Trouble shooting for warning icon in LCD display 17T rouble shooting for fault codes in LCD displ...

Страница 4: ...e UPS Interface this section show you the LCD interface include display and setting Trouble shooting this section will give you the way to find the trouble Test step this section tell you how to test...

Страница 5: ...N Voltage Regulation 1 balance load 2 unbalance load Output Frequency Follows Bypass Frequency if the bypass is ok except the convert mode 50 60 0 1 Hz if bypass is not ok or in convert mode Voltage...

Страница 6: ...t after 200ms Battery mode Auto Retransfer Yes Interface USB 1 1 Yes Intelligent Slot SNMP card Optional RS485 card To be considered AS400 card Optional Dry Contact 5 channel Dry Contact Card Optional...

Страница 7: ...e BUS capacitor also The Inverter block is the output stage of the UPS used to convert the DC power from the BUS capacitor into sine waveform output power When the utility is within the tolerance rang...

Страница 8: ...of the dots on the transformer primary and secondary these dots show starts of the windings When Q6 is ON the dot ends of all windings are positive with respect to their no dot ends Output rectifier d...

Страница 9: ...Q2 are off the choke releases energy and the D1 D2 are on the current of the choke will decrease as time passes Therefore we can control the current waveform of chocks intput current by regulating the...

Страница 10: ...easing the charge current decreases accordingly until the charge voltage reached the constant voltage level and then the charger turns to the floating charge mode The charger employed a double forward...

Страница 11: ...XG 1 6 BUS 71 302936 XXG 1 7 IPOP 71 302901 XXG 1 8 EPO COMM 71 302264 XXG 1 9 SYS LCD PANEL 12 400134 XXG 71 303040 XXG 1 LCD 12 400134 XXG com bine with PCBA 71 3 03040 XXG 10 PFC SCR DRIVE 71 30225...

Страница 12: ...the Rectifier and PFC will work It changes the AC power to DC power stored in the BUS capacitor When UPS works in Battery mode the PFC will boost the battery voltage to higher DC BUS voltage Figure 5...

Страница 13: ...ng battery test and the charge current can be set from 1A 4A via LCD or communication port Figure 5 3 1 M90S 1 1 3 1 3 3 10K Charge Board Figure 5 3 2 M90S Charge Board 5 4 CNTL board Control board CN...

Страница 14: ...board The BUS board work as stable DC power storing energy from PFC and passing it to inverter and charger Figure 5 5 Bus board 5 6 SPS board Switch power supply The SPS board supplies DC power for t...

Страница 15: ...generated by other electronic systems and also protect other systems from the noise generated inside the UPS system Figure 5 7 1 M90S IPOP EMI Board 5 8 EPO and Communication board Communication board...

Страница 16: ...ion Corporation M90S Service Manual Page 16 Uninterruptible Power Supply 5 9 SYS LCD Panel board LCD combine with PCBA the Panel board provide the LED and LCD display to the user Figure 5 9 1 Panel PC...

Страница 17: ...Xtreme Power Conversion Corporation M90S Service Manual Page 17 Uninterruptible Power Supply 5 10 SWITCH board The AC input disconnect used for DC start Figure 5 10 Switch board 6 Interface...

Страница 18: ...us page in the screen Or press this button to increase the number in the setting DOWN Press this button to select the next item in the menu Press this button to enter menu selection Or press this butt...

Страница 19: ...erruptible Power Supply 6 3 LCD Display 6 3 1 LCD Structure Figure 6 1 below illustrates LCD menu structure Figure 6 1 LCD Menu Structure 6 3 2 Main interface Home Page After initialization the main s...

Страница 20: ...the number 3 UPS Measurement Data 4 When alarms happen the warning or fault information will display When UPS in Battery mode or Battery Test mode the backup time will display 5 When the front panel...

Страница 21: ...bably happened 7 2 Fault mode 1 When Fault LED illuminates and the buzzer beeps continuously it means that there is a fatal error about UPS Users can get the fault code from LCD panel Please refer to...

Страница 22: ...t are well Fault 05 Bus Volt Vary DC bus voltage changes too fast Mainly check that the IGBT and SCR etc power components for the PFC and the utility power SCR are well Meanwhile check that the compon...

Страница 23: ...components on the drive circuit are well Fault 1A Nega Power R R phase inverter output negative power is beyond the range Check the AC output Voltage If the actual output voltage and the default volt...

Страница 24: ...well con nected 3 Check the setting of Nominal Battery voltage 4 Contact service personnel if necessary Warning 03 Bat PhaseLoss The voltage between positive and negative battery is different Check th...

Страница 25: ...upply UPS will transfer to bypass mode from line mode Reduce some load and check output Load Capacity in specification Warning 17 EpoActive Check the EPO connector Check if the connector is loose when...

Страница 26: ...ooting In this section some debug skills are listed to help you finding the failure components and problems as soon as possible Before taking the following steps we suggest that you should read proble...

Страница 27: ...step 6 INV output voltage setting Type VXXX command XXX is 208 220 230 240 then press the ENTER key INV output voltage will be set to 208V 220V 230V 240V 7 charger current setting CHGC XX command XX...

Страница 28: ...ower source with current limitation function to the battery terminal 4 Press the Battery start button activating the SPS the LCD will be lit and the Fan will rotate If not please check the input volta...

Страница 29: ...mation of the N o LCD display OK CNTL failure and repair it Yes Press ON more than 0 5s Yes BUS voltage rise to No 360V Booster CNTL failure and repair it Yes INV voltage rise to No 220V INV CNTL fail...

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