WEG CFW-09 - Page 134

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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
E01 - Overvoltage Level
Regulation Level
P151
Nominal
DC Link Voltage (Ud) (P004)
Range
[Factory Setting]
Parameter
Unit
Description / Notes
Time
Time
Speed
Figure 6.13
- Deceleration curve with DC Link voltage limitation (regulation)
NOTES!
The factory setting is at maximum (Link regulation is
deactivated). To activate this regulation, we recommend to set
P151 according t
able 6.8.
If even after this setting the inverter is still disabled due to
overvoltage(E01)duringtheloadacceleration,increasethevalue
of the Parameter P152 gradually, or increase the deceleration
ramp time (P101 and/or P103). The inverter will not decelerate,
if the supplyline is permanently under overvoltageUd > P151).
In this case reduce the line voltage or increment P151.
DCLink
Voltage (Ud)
P152
Speed
Figure 6.14
- Voltage regulation block diagram of the DC Link
Speed Ramp
Output
P151
NOTE!
For large motors it’s recommended the use of the ramp holding
function.