Rockwell Automation PowerFlex 7000 Technical Data

2-116 Parameter Descriptions
7000-TD002A-EN-P – September 2007
Bus Transient Trip Factor [BusTransTrpFac]
Linear Number: 673
Default Value: 2.50 pu
Minimum Value: 0.00 pu
Maximum Value: 100.00 pu
Access Level: Service
Read/Write: Read/Write
This parameter enables and sets the Bus Transient Feature in the PF7000 drive. A value of 2.5 is the
tested and default value to enable and detect bus transients for most sites. The value can be increased
to 2.75 if there are nuisance warnings. Set this parameter to the maximum value to turn off this feature.
Bus Transient Delay [BusTransient Dly]
Linear Number: 674
Default Value: 2
Minimum Value: 0
Maximum Value: 100
Access Level: Service
Read/Write: Read/Write
This value defines the delay in the bus transient algorithm. This parameter’s units are a function of the
sampling rate of 4kHz, or 250 usec per unit. Normally is not changed from the default value of 2.
Bus Transient Minimum Trip [BusTrans MinTrp]
Linear Number: 677
Default Value: 0.30 pu
Minimum Value: 0.00 pu
Maximum Value: 10.00 pu
Access Level: Service
Read/Write: Read/Write
This parameter defines the minimum value for the Bus Transient feature to be enabled, and should not be
changed from the default value of .25pu.
Bus Transient DC Current Factor [BusTrans IdcFac]
Linear Number: 678
Default Value: 0.50 pu
Minimum Value: 0.00 pu
Maximum Value: 10.00 pu
Access Level: Service
Read/Write: Read/Write
This parameter defines the bus transient DC Current factor in the transient protection algorithm. This
should normally not be changed from the default value of 0.5.
Minimum Freewheel Time [Min Freewhl Time]
Linear Number: 679
Default Value: 0.016 sec
Minimum Value: 0.000 sec
Maximum Value: 1.000 sec
Access Level: Service
Read/Write: Read/Write
This is the minimum amount of time the drive will freewheel before the control starts to look for the end of
the transients. This has been set to 1 cycle at 60 Hz (16ms) which should be sufficient for most
transients related to capacitive switching to dampen.

Rockwell Automation PowerFlex 7000 Specifications

General

Brand	Rockwell Automation
Model	PowerFlex 7000
Category	DC Drives
Language	English