204 Rockwell Automation Publication 750-PM001N-EN-P - February 2017
Chapter 3 Drive Port 0 Parameters
APPLICATIONS
Variable Boost
1538 VB Time
Variable Boost Time
Sets the time delay for which the variable voltage boost trigger becomes active
following a drive start.
This parameter begins counting down when the drive enters the run state. Valid trigger
conditions may only be met in the time following the expiration of [VB Time] to cause a
trigger event. This time delay does not affect the trigger condition associated with
P1540 [VB Maximum].
Units:
Default:
Min/Max:
Secs
1.0
0.0 / 100.0
RW Real
1539 VB Minimum
Variable Boost Minimum
Sets the minimum boost voltage level for the variable boost voltage function.
If P1537 [VB Voltage] reaches P1540 [VB Maximum] voltage or one of the variable boost
voltage trigger events occurs then P1537 [VB Voltage] decelerates at the rate
corresponding to P1542 [VB Decel Rate].
Units:
Default:
Min/Max:
V AC
2.0
0.0 / 200.0
RW Real
1540 VB Maximum
Variable Boost Maximum
Sets the maximum boost voltage level for the variable boost voltage function.
If P1537 [VB Voltage] reaches [VB Maximum] voltage then [VB Voltage] decelerates at
the rate corresponding to P1542 [VB Decel Rate].
Units:
Default:
Min/Max:
V AC
10.0
0.0 / 200.0
RW Real
1541 VB Accel Rate
Variable Boost Acceleration Rate
Sets the rate of acceleration of P1537 [VB Voltage] for the variable boost voltage
function.
Units:
Default:
Min/Max:
V/s
0.75
0.01 / 537.67
RW Real
1542 VB Decel Rate
Variable Boost Deceleration Rate
Sets the rate of deceleration of P1537 [VB Voltage] for the variable boost voltage
function following a trigger event.
Units:
Default:
Min/Max:
V/s
6.00
0.01 / 537.67
RW Real
1543 VB Frequency
Variable Boost Frequency
Sets the initial frequency reference for the variable boost voltage function.
Units:
Default:
Min/Max:
Hz
0.8
0.0 / 110.0
RW Real
1544 VB Min Freq
Variable Boost Minimum Frequency
Sets the frequency reference trigger level for the variable boost voltage function.
P1536 [VB Status] Bit 5 “Freq Trigger” is set to 1 when P1 [Output Frequency] falls below
[VB Min Freq].
To enable this threshold and trigger event: Set P1535 [VB Config] Bit 0 “VB Enable” to 1
and Bit 4 “Minimum Freq” to 1.
Units:
Default:
Min/Max:
Hz
0.5
0.0 / 110.0
RW Real
1545 VB Flux Thresh
Variable Boost Flux Threshold
Sets the flux current trigger level for the variable boost voltage function.
P1536 [VB Status] Bit 4 “Flux Trigger” is set to 1 when P1547 [VB Filt Flux Cur] exceeds
[VB Flux Thresh].
To enable this threshold and trigger event: Set P1535 [VB Config] Bit 0 “VB Enable” to 1
and Bit 3 “Flux Level” to 1.
Units:
Default:
Min/Max:
Amps
P21 [Rated Amps] x 0.5
0.0 / P21 [Rated Amps]
RW Real
1546 VB Flux Lag Freq
Variable Boost Flux Lag Frequency
Sets the lag (cutoff) frequency of the P6 [Flux Cur Fdbk] low pass filter.
The output of this filter is displayed in P1547 [VB Filt Flux Cur].
Units:
Default:
Min/Max:
R/S
0.60
0.01 / 100.00
RW Real
1547 VB Filt Flux Cur
Variable Boost Filter Flux Current
Filtered version of the P6 [Flux Cur Fdbk].
P1546 [VB Flux Lag Freq] sets the cutoff frequency of the low pass filter.
Units:
Default:
Min/Max:
Amps
0.0
0.0 / P21 [Rated Amps] x 2
RO Real
File
Group
No. Display Name
Full Name
Description
Values
Read-Write
Data Type
To Next Page
Loading...
Need help?
General
