Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Programming Manual User Manual
Page 78
78
Rockwell Automation Publication 20D-PM001C-EN-P - July 2013
Chapter 2
Programming and Parameters
405
Dead Time Comp
The amount of voltage correction used to compensate for the loss of voltage during dead time. Do not adjust.
Contact factory for alternative settings.
Default:
Min/Max:
Units:
0
0/200
%
RW 16-bit
Integer
406
Power Loss Mode
Enter a value to configure the drive's response to a loss of input power, as sensed by an input voltage below the
value specified in
[Power Loss Level].
• Enter a value of “0” to make the drive fault and coast to a stop (supply no current to the motor) after the
amount of time specified in
[Power Loss Time] has expired.
• Enter a value of “2” to make the drive fault and continue "normal" operation after the amount of time
specified in Par 407 [Power Loss Time] has expired.
• Enter a value of “5” to make the drive provide only motor flux current during the power loss time.
Default:
Options:
0 =
0 =
1 =
2 =
“Coast”
“Coast”
3 = “Reserved”
“Reserved”
4 = “Reserved”
“Continue”
5 = “Flux Only”
407
Power Loss Time
Sets the amount of time that the drive will remain in a ride through condition before a fault is detected.
Default:
Min/Max:
Units:
2.0000
0.0000/60.0000
s
RW Real
408
Power Loss Level
Sets the percentage of the bus voltage at which ride-through begins and modulation ends. When the bus voltage
falls below this level and
[Power Loss Mode] is set to 0 “Coast” or 5 “Flux Only”, an alarm (F92 “Ride Thru”)
will be displayed on the HIM and the drive prepares for an automatic restart. Enter a percentage of the bus voltage
derived from the high voltage setting for the voltage class. For example: On a 400-480V drive,
Note: The definition was updated to include the bit settings for parameter 406 for firmware version 4.002.
Default:
Min/Max:
Units:
Scale:
22.1
15/95
%
0
RW 16-bit
Integer
409 Line
Undervolts
Controls the level of bus voltage that is needed to complete precharge and sets the level for undervoltage alarm/
fault detection. Enter a percentage of the bus voltage derived from the value in
[Rated Volts].
For example: on a 480V drive,
Default:
Min/Max:
Units:
61.5000
10.0000/90.0000
%
RW Real
410 PreChrg
TimeOut
Sets the time duration of precharge. If bus voltage does not stabilize within this amount of time, a Precharge Error
exception event occurs.
Default:
Min/Max:
Units:
30.0000
10.0000/180.0000
s
RW Real
411 PreChrg
Control
Must equal 1 to allow drive to exit precharge and begin to run. Link this parameter to a controller output word to
coordinate the precharge of multiple drives.
Default:
Options:
1 =
0 =
1 =
“Enbl PrChrg”
“Hold PrChrg”
“Enbl PrChrg”
No.
Name
Description
Values
Link
able
Re
ad
-Write
Da
ta
T
yp
e
A
0.221 480Vac
2
Ч
Ч
150Vdc
=
0.615 480Vac
2
Ч
Ч
418Vdc
=