Reference control – Rockwell Automation 20D PowerFlex 700 Installation Instructions - Frames 7…10 User Manual
Page 56
56
Rockwell Automation Publication 20B-IN014H-EN-P - June 2013
PowerFlex 700 Adjustable Frequency AC Drive – Frames 7…10
Reference Control
Auto Speed Sources
The drive speed command can be obtained from a number of different sources.
The source is determined by drive programming and the condition of the Speed
Select digital inputs, Auto/Manual digital inputs or reference select bits of a
command word.
The default source for a command reference (all speed select inputs are open—
the default setting) is the selection programmed in [Speed Ref A Sel]. If any of
the speed select inputs are closed, the drive uses other parameters as the speed
command source.
Manual Speed Sources
The manual source for speed command to the drive can be selected several ways:
•
The HIM can provide the manual source when:
–
manual control is requested from the HIM (see
)
or …
–
the I/O terminal block requests manual control through a digital input
programmed for “Auto/Manual.” [TB Man Ref Sel] is then set to one of
the DPI ports with a HIM connected to it.
(1)
•
The I/O terminal block analog input can provide the manual source when
a digital input is programmed for “Auto/Manual” when active. [TB Man
Ref Sel] is set to “Analog Input.”
Changing Speed Sources
The selection of the active Speed Reference can be made through digital inputs,
DPI command, jog button or Auto/Manual HIM operation.
Torque Reference Source
The torque reference is normally supplied by an analog input or network
reference. Switching between available sources while the drive is running is not
available. Digital inputs programmed as “Speed Sel 1,2,3” and the HIM Auto/
Manual function (see above) do not affect the active torque reference when the
drive is in Vector Control Mode.
(1)
Requires drive firmware v7.001 or greater and a Series B HIM with firmware v5.004 or greater.