V5 series inverter
74
Fig. 4-31 Overvoltage speed loss function
P5.04
Auto current limiting level
Range: 110~200(%)
150(%)
P5.05
Frequeny decrease rate when current limiting
Range: 0.00~99.99Hz/s
10.00Hz/s
P5.06
Auto current limiting selection
Range: 0, 1
1
Auto current limiting function is used to limit the load current smaller than the value defined in P0.54. Therefore the in-
verter will not trip due to surge over-current. This function is especially useful for the applications with big load inertia or
big change of load.
Auto current limiting level (P5.04) defines the threshold of auto current limiting.The range of it the percentage of the in-
verter rated current.
Frequency decrease rate when current limiting (P5.05) defines the rate of output frequency when the inverter is in auto
current limiting status.
If the decrease rate is too small, auto current limiting status may not change and overload fault may occur. If it is set too
big, the frequency will change too sharply and thus the inverter may be in generating status for long time, which may result
in overvoltage protection.
Auto current limiting functions is always enabled in accerlate or decelerate process. P5.06 (auto current limiting) will de-
cide if the auto current limiting function is enable when constant speed running.
P5.06
＝
0, Auto current limiting function is disabled in constant speed operating process;
F5.06
＝
1, Auto current limiting function is enabled in constant speed operating process;
In auto current limiting process, the inverter output frequency may change; therefore, when the inverter output fre-
quency is required to be stable, this function is not recommended.
P5.07
restart after power off
Range: 0,1
0
P5.08
waiting time of restart after power off
Range: 0.0~10.0s
0.5s
P5.07 = 0, Restart after instantaneous power off is disabled.
P5.07 = 1, Restart after instanteaneous power off is enabled.
If instantaneous power off (LED shows E-11) occurs when inverter is in running status, after repowering, it will detect
speed automatically and then restart after the waiting time (P5.08). During the waiting time, the inverter will not start even
you input running command. If input stop command, the inverter will release the speed checking and restart status.
P5.09
Auto reset fault times
Range: 0~10
0
P5.10
Interval of auto reset fault
Range: 0.5~20.0s
5.0s
When the inverter is in running process, it may has fault and stop output by accident for overload fluctuating.To avoid the
pause of the device, you can use auto fault reset function. In the reseting process, inverter will restart after auto-checking
the speed. If the inverter can not reset successfully in auto reset fault times, fault protection will be enabled and output will
be stop. This function will be OFF when auto reset times is 0.
Note:
(1) When use this function, make sure inverter has no substantiality fault.
(2) This function is invalid for the fault caused by overload and overheat.
