Rockwell Automation 21G PowerFlex 750-Series AC Drives Programming Manual - Manual (Page 103)

Rockwell Automation Publication 750-PM001J-EN-P - October 2014 103
Drive Port 0 Parameters Chapter 3
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460 UnderVltg Action
Under Voltage Action
Configures the drive’s response to an under voltage event configured in P461 [UnderVltg
Level].
“Ignore” (0) – No action is taken.
“Alarm” (1) – Type 1 alarm indicated.
“Flt Minor” (2) – Minor fault indicated. If running, drive continues to run.
Enable with P950 [Minor Flt Cfg]. If not enabled, acts like a major fault.
“FltCoastStop” (3) – Major fault indicated. Coast to Stop.
“Flt RampStop” (4) – Major fault indicated. Ramp to Stop.
“Flt CL Stop” (5) – Major fault indicated. Current Limit Stop. Default:
Options: 3 = “FltCoastStop”
0 = “Ignore”
1 = “Alarm”
2 = “Flt Minor”
3 = “FltCoastStop”
4 = “Flt RampStop”
5 = “Flt CL Stop” RW 32-bit
Integer
461 UnderVltg Level
Under Voltage Level
DC line voltage level below which an undervoltage event occurs. Units:
Default:
Min/Max: V DC
Based on Drive Rating and Voltage Class
0.00 / P20 [Rated Volts] x 1.41 RW Real
462 InPhase LossActn
Input Phase Loss Action
Selects the action to take if an input phase loss is detected.
The input phase loss function helps protect the drive bus capacitors from excessive bus
ripple. The bus ripple threshold set by P463 [InPhase Loss Lvl].
“Ignore” (0) – No action is taken.
Important: Operating in a phase loss condition will seriously degrade the reliability of
the drive.
“Alarm” (1) – Type 1 alarm indicated.
“Flt Minor” (2) – Minor fault indicated. If running, drive continues to run.
Enable with P950 [Minor Flt Cfg]. If not enabled, acts like a major fault.
“FltCoastStop” (3) – Major fault indicated. Coast to Stop.
“Flt RampStop” (4) – Major fault indicated. Ramp to Stop.
“Flt CL Stop” (5) – Major fault indicated. Current Limit Stop. Default:
Options: 3 = “FltCoastStop”
0 = “Ignore”
1 = “Alarm”
2 = “Flt Minor”
3 = “FltCoastStop”
4 = “Flt RampStop”
5 = “Flt CL Stop” RW 32-bit
Integer
463 InPhase Loss Lvl
Input Phase Loss Level
Sets the threshold at which the DC bus voltage ripple triggers an Input Phase Loss fault.
Input phase loss is assumed when the DC bus voltage ripple exceeds the tolerance set by
this parameter. Setting a larger value permits a higher bus voltage ripple without
causing the drive to fault. The default value of 325 is equal to the expected ripple level
for a full rated motor running at half load with single phase input. Default:
Min/Max: 325
10 / 32767 RW 32-bit
Integer
464 DC Bus Mem Reset
Direct Current Bus Memory Reset
Forces a manual update to P12 [DC Bus Memory], which is automatically initialized upon
power-up or precharge and continually updated during normal operation.
A transition from 0 to 1 will cause a bus memory update. However, the update will be
ignored if the command cannot be acted upon within 30 seconds because the drive is
regenerating or is firing the dynamic brake.
A manual reset is rarely required, but may occur when input voltage is abnormally high
or low for an extended period of time followed by a fast return to a nominal value. Default:
Options: 0 = “Disabled”
0 = “Disabled”
1 = “Enabled” RW 32-bit
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