Curtis Instruments 1234 - Battery Menu; Nominal Voltage; Undervoltage Cutback Range; User Overvoltage

#URTIS-ANUAL/3 

02/'2!--!",%0!2!-%4%23 "ATTERY0ARAMETERS
"!44%29-%.5
  !,,/7!",% 
 0!2!-%4%2 2!.'% $%3#2)04)/.
.OMINAL6OLTAGE n6 -USTBESETTOTHEVEHICLESNOMINALBATTERYPACKVOLTAGE4HISPARAMETER
.OMINAL?6OLTAGE n ISUSEDINDETERMININGTHEOVERVOLTAGEANDUNDERVOLTAGEPROTECTIONTHRESHOLDS
FORTHEELECTRONICSYSTEM
/VER
VOLTAGEPROTECTIONCUTSBACKREGENBRAKINGTOPREVENTDAMAGE
TOBATTERIESANDOTHERELECTRICALSYSTEMCOMPONENTSDUETOOVERVOLTAGE
5NDERVOLTAGEPROTECTIONPREVENTSSYSTEMSFROMOPERATINGATVOLTAGESBELOW
THEIRDESIGNTHRESHOLDS
 4HEF
OURTHRESHOLDPOINTSARECALCULATEDFROMTHE.OMINAL6OLTAGE5NDER
VOLTAGE#UTBACK2ANGE5SER/VERVOLTAGEAND5SER5NDERVOLTAGEPARAMETER
SETTINGSANDTHECONTROLLERSMINIMUMVOLTAGEANDMAXIMUMVOLTAGERATINGS
   
6/,4!'%2!4).'3
"2/7./54 -). -!8
#/.42/,,%26/,4!'%

 6/,4!'% 6/,4!'%
   6 6 6 6
   n6 6 6 6
   n6 6 6 6
   n6 6 6 6
   n6 6 6 6

  /VERVOLTAGE%ITHER-AX6OLTAGESEEVOLTAGERATINGSTABLE
 OR5SER/VERVOLTAGE×.OMINAL6OLTAGEWHICHEVERISLOWER
  3EVERE
/VERVOLTAGE/VERVOLTAGESEEPREVIOUSITEM6
  5NDERVOLTAGE%ITHER-IN6OLTAGESEEVOLTAGERATINGSTABLE
 OR5SER5NDERVOLTAGE×.OMINAL6OLTAGEWHICHEVERISHIGHER
  3EVERE
5NDERVOLTAGE5NDERVOLTAGEPOINTn5NDERVOLTAGE#UTBACK2ANGE


4HE"RO
WNOUT6OLTAGEISDETERMINEDBYTHECONTROLLERBASETYPEANDCANNOT
BECHANGED7HENTHECAPACITORVOLTAGEFALLSBELOWTHE"ROWNOUTVOLTAGE
THEBRIDGEISSWITCHEDOFFIEMOTORCURRENTISSWITCHEDOFF)FTHECAPACITOR
VOLTAGESTAYSBELOWTHE"ROWNOUTVOLTAGEFORMSECTHECONTROLLERWILLRESET
EQUIVALENTTOCYCLINGTHEKEYSWITCH)FTHECAPACITORVOLTAGERISESABOVETHE
"ROWNOUTVOLTAGEBEFOREMSECHAVEPASSEDTHEBRIDGEWILLBEREENABLED
4HE3EVERE5NDERVOLTAGEPOINTCANBESETLOWERTHANTHE"ROWNOUTVOLTAGE
5NDERVOLTAGE#UTBACK2ANGE n6 4HISPARAMETERSETSTHEVOLTAGERANGEBETWEENTHE5NDERVOLTAGEAND
5NDERVOLTAGE?#UTBACK?2ANGE n 3EVERE5NDERVOLTAGEPOINTSSEE.OMINAL6OLTAGEDESCRIPTION

!3E
VERE5NDERVOLTAGEFAULTWILLBESETIFTHECAPACITORVOLTAGEFALLS
BELOWEITHERTHE3EVERE5NDERVOLTAGEPOINTDRIVECURRENTLIMITSETTOOR
THE"ROWNOUTVOLTAGEBRIDGEDISABLEDMOTORCURRENTSETTO
5SER/VERVOLTAGE n 4HEVALUEOFTHISPARAMETERISAPERCENTAGEOFTHE.OMINAL6OLTAGESETTING
5SER?/VERVOLTAGE n 4HE5SER/VERVOLTAGEPARAMETERCANBEUSEDTOADJUSTTHEOVERVOLTAGE
THRESHOLDWHICHISTHEVOLTAGEATWHICHTHECONTROLLERWILLCUTBACKREGEN
BRAKINGTOPREVENTDAMAGETOTHEELECTRICALSYSTEM
 4YPICALLY
THISPARAMETERISCHANGEDONLYWHENTHECONTROLLERISBEING
USEDINANAPPLICATIONATTHELOWENDOFTHECONTROLLERSRANGESUCHAS
An6CONTROLLER
BEINGUSEDINASYSTEMWITHA6BATTERYPACK)N
THISCASETHEOVERVOLTAGETHRESHOLDCANBERAISEDBYSETTINGTHE5SER
/VERVOLTAGETOAHIGHERVALUE4HEOVERVOLTAGETHRESHOLDCANNEVERBE
RAISEDABOVETHECONTROLLERSPOWERBASEMAXIMUMVOLTAGERATING