Softstarters Type PSE18...PSE370 Installation and commissioning manual 1SFC132057M020162 Chapter 7
7.5.4 Initial/End Voltage
This parameter makes it possible to set the initial voltage level where the start
ramp begins. The value for end voltage where the stop ramp ends, will automati-
cally be 10 percent lower than the initial voltage.
During start ramp will then the voltage increase from the initial voltage level, to full
voltage.
During stop ramp will the voltage decrease from full voltage to the end voltage
level and then cut the power to the motor. Figure 7.9.
If the initial voltage is set too low, it will cause longer starting time and un-
necessary heating of the motor. The motor might not reach full speed (TOR).
Display Default
value
Setting range
initial voltage
Description
30 % 30-70 % Initial and end voltage for start
ramp and stop ramp
TOR
Figure 7.8: Initial/End voltage parameter
displayed
Figure 7.9: The function of Initial/End Voltage
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