Allen-Bradley PowerFlex 70 Reference Manual page 37

gain exclusive control (Manual) of the reference. If granted control of the
reference, the specific source for the reference is determined by the parameter
TB manual reference select.
The TB manual reference is selected in [TB Man Ref Sel]. The choices for
this parameter are:
– Analog Input 1
– Analog Input 2
– MOP Level
– Analog Input 3 (PF700 Only)
– Pulse Input (PF700 Only)
– Encoder input (PF700 Only)
– Releasing this input sends the control back to the Auto source.
General Rules
The following rules apply to the granting and releasing of Manual control:
1. Manual control is requested through a one-time request (Auto/Man toggle,
not continuously asserted). Once granted, the terminal holds Manual control
until the Auto/Man button is pressed again, which releases Manual control
(i.e. back to Auto mode).
2. Manual control can only be granted to the TB or to a programming terminal
(e.g. HIM) if Manual control is not already being exercised by the TB or
another programming terminal at the time.
3. Manual control can only be granted to a terminal if no other device has Local
control already asserted (i.e. no other device has ownership of the Local
control function).
4. A HIM (or TB) with Manual control active can have it taken away if another
DPI port requests, and is granted Local control. In this case when Local
control is released the drive will not go back to Manual control, Manual
control must be again requested (edge based request, see
for both the HIM and the TB (i.e. if the TB switch was in the Manual
position it must be switched to Auto and back to Manual to get Manual
control again).
5. The status indicator (point LED on LED HIM & Text on LCD HIM) will
indicate when that particular terminal has been granted Manual control, not
the fact any terminal connected has Manual control and not the fact that the
particular terminal has simply asked for Manual control.
6. When Manual control is granted, the drive will latch and save the current
reference value prior to entering Manual. When Manual control is then
released the drive will use that latched reference for the drive until another
DPI device arbitrates ownership and changes the reference to a different
value.
Rockwell Automation Publication PFLEX-RM001H-EN-P - June 2013
Auto/Manual
1. above). This is true
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