Rockwell Automation 160 Series C Firmware - Manual (Page 5)

160 Series C Custom Firmware 5
Table E
Five Point V/Hz Parameters
In the event that the frequencies or voltages are programmed
incorrectly, the following will occur:
If a breakpoint or start point frequency is programmed less than the
previous frequency, the V/Hz trajectory will follow its normal course
to the next breakpoint (up until the out of sequence breakpoint
frequency). At that point it will jump to the voltage set for that
breakpoint frequency and continue on a line to the next breakpoint
frequency. If P33 - [Maximum Frequency] is set less than any other
frequency, it will not affect the V/Hz curve. However, it will end at
the maximum frequency regardless of other set points. If a setpoint
voltage is set less than the previous one, the V/Hz profile will simply
connect these two points. Thus, the voltage at one breakpoint can be
less than that of a previous breakpoint.
Parameter
Number
Parameter Name Min./Max./Default Description
P81 Start Frequency 0/120/0 Hz Determines the starting frequency
for the drive to ramp up from.
P82 Start Volts 0/230/0 Volts Sets the voltage for the start
frequency.
P83 Breakpoint1 Frequency 0/240/10 Hz Determines the frequency point
used after the Start Frequency.
P84 Breakpoint1 Volts 0/115/42 Volts for
230V Rated Units
0/230/84 Volts for
460V Rated Units
Sets the voltage for the
Breakpoint1 Frequency.
P85 Breakpoint2 Frequency 0/240/15 Hz Determines the frequency point
used after the Breakpoint1
Frequency.
P86 Breakpoint2 Volts 0/230/57 Volts for
230V Rated Units
0/460/115 Volts for
460V Rated Units
Sets the voltage for the
Breakpoint2 Frequency.
P35 Base Frequency 10/240/60 Hz Determines the frequency point
used after the Breakpoint2
Frequency.
P36 Base Voltage 20/230/230 Volts
for 230V Units
20/460/460 Volts
for 460V Units
Sets the voltage for the Base
Frequency.
P33 Maximum Frequency 0/240/60 Hz This will determine the frequency
point used after the Base
Frequency.
P37 Maximum Voltage 20/255/230 Volts
for 230V Units
20/510/460 Volts
for 460V Units
This will set the voltage for the
Max. Frequency.