Forza Atlas 2-3KVA Service Manual Download | Manualshive

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Atlas 2-3KVA Model

Power Inverter/UPS System

Service Manual

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Summary of Contents for Atlas 2-3KVA

Page 1: ...2 Y e a r W a r r a n t y Atlas 2 3KVA Model Power Inverter UPS System Service Manual...

Page 2: ...nce there is dangerous voltage at several points in this product Turn off the UPS and disconnect the input power cable before removing the external protective cover AC voltage may be present when AC p...

Page 3: ...that that there is input power available before re connecting the battery connectors After servicing the UPS and before restarting it perform a polarity test on the batteries and make sure the screws...

Page 4: ...Step 2 Step 3...

Page 5: ...y have encountered Due to the unique features of this UPS series Uninterruptible Power System this unit is very easy to maintain and service The PBC has all the major power components All PCBs are int...

Page 6: ...ow the entire system works Picture 1 shows how the major circuits are connected and how the entire system works Picture 1 Circuit connection for 2 3KVA Includes 1 a charger 2 a DC power supply 3 a pow...

Page 7: ...The location of the assemblies in the machine are shown in picture 2 The location of the assemblies in the machine are shown in picture 2...

Page 8: ...ply is transferred immediately from the inverter to the AC mains by a bypass relay This operation will be explained in another section This ON LINE UPS system resorts to high frequency PWM techniques...

Page 9: ...cuits The purpose of the charger is to provide power to keep the batteries full Refer to picture 4 The voltage flyback switching power supply delivers a constant DC voltage 83 8 VDC to the batteries A...

Page 10: ...the level of the input current is less than 1 as shown in picture 7 The primary role of a UPS is to deliver accurate AC power to the loads connected to it whether the AC line exists or not The batteri...

Page 11: ...that the UPS is delivering constant AC voltage to the loads When the main is applied and the switch is turned on a 10 second timer is triggered The bypass relay stays at bypass position in this time...

Page 12: ...ected or an abnormal inverter operation occurs 2 Battery over or under shut down 3 Inverter output abnormal protection 4 Over temperature protection 5 Bus over under unbalance voltage protection When...

Page 13: ...ed and the buzzer will beep every 1 second Remote shutdown signal is enabled only when the line fails The front panel consists 2 parts push button and display LCD set The push button is used to turn o...

Page 14: ...ing mode Switching the LCD messages Press this button to display the following messages showing values related to input voltage input frequency battery voltage output voltage and output frequency The...

Page 15: ...ity Press ON button for 2 seconds to turn EUT on Waiting for 10 seconds to make sure the EUT work in line mode according to the LCD display Check reading on DVM 360VDC 10V DC Bus Voltage Baterry Mode...

Page 16: ...If the panel LCD light and fan rotates If the panel LCD display normally If I P relay continuouly open and close If D C start works properly Change CNTL SUB ASSY If DC start works properly DC DC fail...

Page 17: ...ry level indicator at 0 25 26 50 51 75 and 76 100 of its capacity Battery fault indicator Low battery level and low voltage indicator Input voltage or frequency or battery voltage indicator VAC Input...

Page 18: ...disable ECO voltage range setting Bypass enable disable Bypass voltage range setting programmable outlets enable disable programmable outlets setting and exit Setting For 208 220 230 240 VAC models y...

Page 19: ...et the acceptable high voltage point and acceptable low voltage point HLS High loss voltage in ECO mode For 208 220 230 240 VAC models the setting range is from 7V to 24V of the nominal voltage For 11...

Page 20: ...e low voltage point HLS Bypass high voltage point LLS Bypass low voltage point For 208 220 230 240 VAC models 230 264 setting the high voltage point from 220Vac to 264Vac 170 220 setting the low volta...

Page 21: ...still charge battery under this mode When the input voltage is beyond the acceptable range or when power is failing the alarm will beep every 4 seconds and the battery will start supplying power to th...

Page 22: ...nd Beeping every second Fault event Inverter voltage Low Inverter output short Battery voltage too high Battery voltage too low Over temperature Over load Fault code 01 02 03 04 11 12 Icon flashing Al...

Page 23: ...ecked components Instrument function Reference Value Failed condition 1 2 3 F1 F2 F3 Q14 Q13 Q7 Q8 D S R64 R85 R90 R91 DIODE short 0 47 47 open short or open open Step Checked components Instrument fu...

Page 24: ...have not been found When everything seems to be working turn off the switch on the panel and remove the DC power supply Plug in the power cord and supply the UPS with the mains Test the output of the...

Page 25: ...75 VAC 5 Full Load 300 VAC 5 285 VAC 5 110 VAC to 300 VAC 2 2000 3000 8A 11A 3 5 mA maximum UPS only 0 95 40 Hz to 70 Hz circuit protector O P Power Power VA Power Watts Output Power Factor Rating Loa...

Page 26: ...ion is indicated in illustration VI 1 Note that the computer will control information exchange by a query followed by cr Character Return UPS will respond with information followed by a cr or action U...

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