Yuanxin Electric YX2000, User Manual

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YX3000 Senseless Vector Type Inverter Manual
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bus bar voltage and compare it with overvoltage stall point defined by P5.03 (relative to
standard bus bar voltage), if it exceeds overvoltage stall point, the inverter will stop
decreasing output frequency. After detecting bus bar voltage lower than overvoltage stall
point again, the Dec process will restart, shown as Fig.6-30.
P5.04 Auto current limit level Range: 110
～
200(
％
) 150(%)
P5.05 Freq. drop rate current limit Range: 0.00
～
99.99Hz
／
S 10.00Hz/S
P5.06
Auto current limit mode
selection
Range: 0
、
1 1
Auto current limit function is to auto limit the load current not to exceed auto current limit level
(P5.04) by real time monitoring the load current in order to prevent fault trip caused by over
current. It is suitable to some applications with bigger inertia or load change in intensity.
Function code P5.04 defines the current threshold value of auto current limit action; the set
range is a percentage to inverter rated current. Function code P5.05 defines regulating rate
to output frequency during auto current limit action.
If freq. drop rate (P5.05) during current limit is too small to get rid of auto current limit state, it
may finally cause load fault. If freq. drop rate is too big to intensify frequency regulating range,
it may cause inverter overvoltage protection.
Auto current limit function is always valid during Acc/Dec state. Auto current limit mode
selection (P5.06) defines whether auto current limit function is valid in constant speed
running state.
P5.06=0 Auto current limit invalid in constant speed running
P5.06=1 Auto current limit valid in constant speed running
Auto current limit function is not suitable to constant speed running requiring stable output
frequency, because the output frequency may changes during auto current limit action.
P5.07
Restart setting after power
failure
Range: 0, 1 0
P5.08
Restart waiting time after
power failure
Range: 0.0
～
10.0S 0.5S
P5.07 = 0
，
Restart after momentary power failure inaction