1.877.377.6769
Fax: 909.930.3335
Plus
074-2000-00
--
Online Emergency Lighting Inverter Maintenance Manual
-
Charger board ab-
normity
For long backup time UPS, firstly check whether power line
(from CN03/CN05 of charger to CN104/CN105 of PSDR)
connects correctly, afterward change charger board if other
connection correct. For standard UPS, no power line; if
measure BUS voltage normal, please change charger board.
Overload
Unload unimportant load to 90％ below; if UPS have been
fault ,you should turn UPS into inverter mode.
Battery SCR fault
,，
Maybe charger or PSDR board fault;
mostly check whether battery SCR（Q305）on the PSDR
board is fault or battery relays(RY3、RY4) are fault, and then
check whether components in battery driver part are normal,
also need to check circuitry of line commutating part; if
PSDR board is normal, charger output is likely to be fault.
Parallel communica-
tion abnormity
1#，2#，3#，6# lights
shine
Need to check whether parallel line、 parallel card 、the
connection between parallel card and CNTL board are nor-
mal.
Bus abnormity
1#，4# lights shine
Maybe PSDR board fault; mostly check whether PFC part on
PSDR board and such power components as IGBT、SCR
on line commutating part are fault, at the same time , check
whether components of driving circuitry are fault.
Inverter Fault
1#，5# lights shine
Maybe PSDR board fault; mostly check whether power com-
ponents on PSDR INVERTER part and on driving circuitry
are abnormal; at the same time ,check whether protecting
circuitry of IGBT and PFC components are OK.
Inverter output
short_circuit
1#，2#，5# lights shine
Check whether load switch of user jumps, and find out equip-
ment power and input current’s characteristic of user.
Temperature too high
1#，6# lights shine
If temperature is assuredly too high inside the case, please
unload redundant load and suggest user install an air-
condition in UPS room; if sense is fault, maybe CNTL board
estimates falsely, or NTC on PSDR board fault.
Output relay short-
circuit
1#，4#，6# lights shine
Check whether the shrapnel on inverter relays RY1、RY2 of
PSDR board are fault.
Communication ab-
normity
1#，3#，4# lights shine
CNTL board fault
Fan abnormity
1#，2#， 6# lights shine
Check whether fan runs normally, if OK, check fan detective
circuitry.
Inverter Bypass short-
circuit
1#，2#，3#，4# lights
shine
Firstly check whether input 、output connection are right;
secondly check whether inverter relays RY1、RY2 of PSDR
board are fault or bypass SCRQ207、Q208 and driving cir-
cuitry are fault.
To Next Page
Loading...
