T3 UPS service manual 6kVA - 10kVA
Contents
1. R315 R319 D106 R112 R159 Q04 OQ _ m bho jen _ Rog ee GN fava R320 R321 R322 R340 R339 0 5 6 Q R341 Allis Electric Page 8 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 6 10 kVA Charger Module Standard type 1 F901 F902 F903 open F904 F905 F906 2 Q907 Q908 S D O 1 7MQ G S 320 3 D901 D902 DIODE 0 4V OV D903 4 Q909 A K 20 42 Allis Electric Page 9 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 6 PFC Boost Inverter IGBT Driver Module Analysis 6 10kVA Boost Right side 6 10kVA Boost Left side Value ZD201 0 7V OV Q201 Q202 Vee 0625V Vec 0 625V R203 R205 100 Open D201 0 580V OV Q01 Vsp 0 5V OV 2 225 Allis Electric Page 10 of total 13 September 2006 ST3 6 10kVA Service Manual Rev 1 4 Final testing After you have replaced all defective components on power stage PSDR please follow the steps as below Step 1 Install the board into UPS unit but DO NOT connect with Battery and Input source prout RIP 4 a es Pa a 39 Before go to step 2 make sure all of the cable should be connected the right position Do not connect with AC power source yet Step 2 Supply DC voltage 270Vdc 3 Amp limited current for 6 10kVA with DC power supply via BAT and BAT2. Press the switch on front panel for more than 3 seconds you will see current limit for a short time on the DC power supply for about only 2 seconds then UPS should be DC start If UPS does not start successfully and LCD display off replace the above procedure If UPS fails to start up for several times or DC power supply is on current limit state continuously there must be some defective components exist Please follow the section 3 trouble shooting to check again Allis Electric Page 11 of total 13 September 2006 ST3 6 10kVA Service Manual Rev 1 4 Final testing Step 3 If the UPS re start normally check the DC BUS and output voltage For 6 10kVA DC BUS 340 350 and 340 350VDC deviation between negative and positive voltage should be within 10VDC Output Voltage 220 230 240 2 DC BUS Voltage Positive DC BUS 340 350VDC MUT DC BUS 340 350VDC Allis Electric Page 12 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 4 Final testing Output Voltage Output Voltage 220 230 240 2 Step 5 Connect with AC power source then follow the step3 and step4 to check the DC BUS and output voltage again Also the charger voltage need to be confirmed the charger voltage should be 274VDC 1 If UPS fails to start up for several times there must be some defective components exist Please follow section 3 trouble shooting to check again Charger Voltage 274
3. problem guickly and make sure these components good or not first Possible Circuit Block Coded Components Failure Mode BAT FUSE F303 F304 I P FUSE on F301 F302 Open PFC Correction 0301 Q302 MOSFET A K Short or open Push Pull Boost 0306 0307 0308 0309 IGBT D S short or open 0310 Q311 0302 0304 D306 D303 Power Diode Short or open Inverter C E short or open 0201 D202 0203 D204 Power Diode Short or open D S short or open 02 0095 _ Short or open A K Short or open Q3 Q4 Q5 Q6 A K short or open If the fuse is open replacing fuse only DO NOT mean you have solved the problem General speaking fuse open was caused by other failure of components therefore you must find the real defective components and replace them before restart the UPS Allis Electric Page 3 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 2 PFC Analysis In this section some components you could check to see if failure occurs on PFC Correction circuit as shown below Be aware of F301 F302 fuse open indicates failure of this block Please replace all faulty components before re start the UPS 6 10kVA PFC Right side Checked components Reference Failure Mode Value F301 F302 00 0301 A K 2 6 MO Short or open 0302 Short or open Action Item If all above stated components are replaced well and UPS still can t work change the PFC I IG
4. beeps continuously AC OK BATT OK Inverter Fault Warning Normal j O O UPS in Bypass Mode Fault LED lights up and the alarm beeps continuously AC OK BATT LOW Normal Mode Fault Warning Normal O O O UPS in Normal Mode but battery capacity is low The alarm beeps once every second for battery low AC OK BATT OK DC BUS Fail Fault Warning Normal a O O UPS stop working The alarm beeps continuously Allis Electric Possible Cause 1 Fan fail 2 Temperature is higher than allowed operation temperature Inverter circuit failed Inverter driver failed PFC circuit failed Charger may break down Boost circuit failed Inverter circuit failed PFC circuit failed BUS circuit failed Page 2 of total 12 l 2 Action Replace the fan Reduce ambient temperature or O P load Replace the Inverter components or driver Replace the PFC components or driver Please replace charger board Replace the Boost components Replace the Inverter components Replace the PFC components Replace the BUS circuit components ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 1 Ouick Start For the 6 and 10kVA both of the boards are same size only some power components of should be more than 6kVA Before any check of UPS please check the components as listed in the following table This action could help you find
5. BT driver module Allis Electric Page 4 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 3 Boost Analysis 6 10kVA Boost Right side 6 10kVA Boost Left side Checked components Reference Failure Mode Value bius EC O D305 D307 Allis Electric Page 5 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 R325 R331 R334 R342 R337 R328 R390 R388 R389 R393 O R392 391 6 F303 F304 0305 i Action Item If all above stated components are replaced well and UPS still can t be DC start change Boost Driver Module Allis Electric Page 6 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 4 Inverter Analysis 6 10kVA Inverter Right side 6 10kVA Inverter Middle side 6 10kVA Inverter Left side s ta Hr 1 Value 1 a201 0202 D201 D202 D203 D204 D205 0 36V 3 D210 D211 D212 D213 Diode Open R201 R202 R208 R209 Q 100 jopen J R203 R204 R210 R211 oeeo Open Action Item Make sure the DC fuses with same rating as original ones for replacement Otherwise unpredictable danger might happen Allis Electric Page 7 of total 12 September 2006 ST3 6 10kVA Service Manual Rev 1 3 Troubleshooting 3 5 Charger Module Analysis 6 10 kVA Charger Module Long back up type pone ov
6. Service Manual STAR T3 T3R UPS 6kVA 10kVA 220VAC www allis com tw ST3 6 10kVA Service Manual Rev 1 Content FU S OITIDITOO UCI ON osaisi sev uses 1 1 1 6 10 kVA PSDR Right side 0c ccc cccceecece cece eeteeeese cece eeseuecseeeseeeseueesueesaeeseueesueesaeeseeeteneetas 1 122 BAO KVA PSDR LETSIAES A 1 2 TAMAN NAT a a ms mama mit m ets acta tee acdc sansa 2 3e OLS IO OLIN OF 3 KE e E 3 Er 4 Se UIS NIMM CIM 5 JS avere S ee 7 oo Charger Mod le ANalySiS ssepe tout uoo Ro 8 3 6 PFC Boost Inverter IGBT Driver Module 10 2 OSUN mita E ea ee 11 ST3 6 10kVA Service Manual Rev 1 1 PSDR Introduction 1 1 6 10 kVA PSDR Right side O OG 1 Bypass Mosfet Driver 2 Inverter IGBT Driver Module 3 Boost IGBT Driver Module 4 PFC IGBT Driver Module Allis Electric Page 1 of total 13 September 2006 ST3 6 10kVA Service Manual Rev 1 2 Fault and Warning LCD amp LED Status Audible Alarms AC OK OK Fault Warning Normal O O UPS in Bypass Mode The alarm
7. VDC 1 Allis Electric Page 13 of total 13 September 2006
Download Pdf Manuals
Related Search