User Manual EM303B General Purpose Inverter Undervoltage Detection 8.11.14 Undervoltage Detection Scale When the DC bus of inverter The fault of undervoltage: 537VDC*65.18%=350VDC When the DC bus of inverter remains lower than undervotlage detection scale (F9-30), and when it exceeds the udervoltage detection time, inverter will trip undervoltage fault to avoid false trip cause by interference. 8.12 FA Group: Advanced Parameters of Vector Control 8.12.1 Torque Input FA-06 When torque setting mode is regular torque input, FA-06 is defined by setting of F5-11. FA-06 is for selecting corresponding torque input mode.
8.12.2 Preset Current Limit FA-07~FA-13 When current stall control is enabled (FC-07=2), these parameters set the current limit scale of each preset torque current in program running. The setting of control terminal corresponding to preset current limit refers to 7.3 for setting the function of multi-function input terminal as preset current limit function. Preset current limit is enabled, 3 input terminals can be defined as the preset current limit terminals. A preset current limit set in FA-07 ～ FA-13 is selected correspondingly through programming these 3 terminals. 145 No. Function Range Unit Default Type F9-30 Undervoltage Detection Scale 0.00～100.00（Udc e） % 65.18 〇 No.
Function Range Unit Default Type F9-31 Undervoltage Detection Time 0.00～30.00 S 0.50 〇 No. Function Range Unit Default Type FA-06 R egular Torque Options 0: Regular torque input 1: VS* Regular torque input 2: VF* Regular torque input 3: IS* Regular torque input 4: IF* Regular torque input 0 〇 No. Function Range Unit Default Type FA-07 Preset Current Limit 1 0.00～180.00 % 150.00 〇 FA-08 Preset Current Limit 2 0.00～180.00 % 150.00 〇 FA-09 Preset Current Limit 3 0.00～180.00 % 150.00 〇 FA-10 Preset Current Limit 4 0.00～180.00 % 150.00 〇 FA-11 Preset Current Limit 5 0.00～180.00 % 150.00 〇 FA-12 Preset Current Limit 6 0.00～180.00 % 150.00 〇 FA-13 Preset Current Limit 7 0.00～180.00 % 150.00 〇