Direction Control - Allen-Bradley PowerFlex 70 Reference Manual

Direction Control

PowerFlex 700 Firmware 3.001 (& later) Enhancements
Certain digital output enhancements have been included in firmware version
3.001 (and later) for the PowerFlex 700 Vector Control drive. These include:
• Digital output control via Datalink
Parameter Controlled Digital Outputs
Enables control of the digital outputs through the Data In parameters.
379 [Dig Out Setpt]
Vector v3
Sets the digital output value from a communication device.
Example
Set [Data In B1] to "379." The first three bits of this value will determine the setting of [Digital
Outx Sel] which should be set to "24, Param Cntl."
x x x x x x
15 14 13 12 11 10
Bit #
Example
Digital Output 2 controlled by Data In B1
Setup
• [Data In B1], parameter 302 = 379 ([Dig Out Setpt] as the Data In target)
• [Digital Out2 Sel], parameter 384 = 30 "Param Cntl"
When Bit 1 of Data In B1 =1 Digital Out 2 will be energized.
Direction control of the drive is an exclusive ownership function. Thus only one
device can be commanding/controlling direction at a time and that device can
only command one direction or the other, not both. Direction is defined as the
forward (+) or reverse (–) control of the drive output frequency, not motor
rotation. Motor wiring and phasing determines its CW or CCW rotation.
Direction of the drive is controlled in one of four ways:
1. 2-Wire digital input selection such as Run Forward or Run Reverse
17 on page 86).
2. 3-Wire digital input selection such as Forward/Reverse, Forward or Reverse
(Figure 16 on page 86).
3. Control Word bit manipulation from a DPI device such as a communications
interface. Bits 4 & 5 control direction. Refer to the Logic Command Word
information in Appendix A of the PowerFlex 70 or 700 User Manual.
4. The sign (+/-) of a bipolar analog input.
Direction commands by various devices can be controlled using the [Direction
Mask]. See page 113 for details on masks.
Refer to Digital Inputs on page 70
on the configuration and operating rules for direction control.
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
1 =Output Energized
x x x x x x x 0 0 0
0 =Output De-energized
9 8 7 6 5 4 3 2 1 0
x =Reserved
and Analog Inputs on page 18
Direction Control
380
(Figure
for more detail
91