Simphoenix V800 Series - Page 137

Description Of Specific Functions
129
V800 Series High Performance Closed-Loop Vector Inverter User Manual
F1.4.40 Strong start current
limiting level
Setting range: 120~200%
Factory default: 160
F1.4.41 Strong start current
holding time
Setting range: 0.00~5.00Sec.
Factory default: 0.0
Function is similar with [F1.4.39], limit the current value when frequency inverter is in acceleration and
starting. For some systems with large inertia, or requires to overcome great static friction at start, large
starting current can be set for a certain time ([F1.4.41]), to meet the requirement. Setting value is the relevant
percentage of rated output current of frequency inverter.
F1.4.42 Trip suppression selection
Setting range: 0000~0112
Factory default: 0111
_ _ _ X : Overvoltage suppression adjustor
When setting is valid, for load with energy feedback, in order to suppress overvoltage, frequency inverter
may lift output frequency automatically, making it exceed selected frequency (limited by upper limiting
frequency). Be attention if it is dangerous to the equipment safety when setting.
_ _ X _ : Undervoltage suppression adjustor
When setting is valid, undervoltage caused by sudden fall of grid voltage, frequency inverter may lower
output frequency automatically, accessing into feedback braking state, to keep running with mechanical
energy for a certain time to ensure the normal running of equipment.
_ X _ _ : Frequency modulation and current
When setting is valid, if the output current exceeds the maximum current [F1.4.47], frequency inverter will
lower output frequency automatically.
X _ _ _ : Failure Auto Recovery Mode
Setting effective, failure auto recovery mode is normal start, setting not effective, failure auto recovery mode
is speed tracking start
Figure 7-30 Schematic diagram of current limit for acceleration and deceleration
 F1.4.41 is set as zero, it means the function of current limit of strong start is closed.