Position loop - registration, Port 0 example, Sequence of events – Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual User Manual

Page 94

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Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013

Chapter 1

Detail Drive Configuration and Operation

Position Loop - Registration

The PowerFlex 700S drive has the ability to capture the feedback position upon
an event occurrence. There are two registration registers that can be configured.
You may also see DriveLogix Motion instruction Motion Arm Registration
(MAR).

Port 0 Example

Sequence of events:

Registration for Port 0 is configured using the parameters below. After
configuration the Registration latch is armed. After the registration event occurs,
the Found bit will be turned on. This indicates that the position of the event has
been trapped in the Registration Latch parameter.

P235 [Port0 Regis Ltch] Displays the captured position after the event occurs.

P236 [Port0 Regis Cnfg] Configures the Registration event.

Encoder Selection

Bit 0

Description

0

Select Encoder0 to trap position

1

Select Encoder1 to trap position

Trigger Source

Bit 2

Bit 1

Description

0

0

Digital Input 1 and Encoder 0 Z phase

0

1

Digital Input 3 ( Default setting)

1

0

Digital Input 2

1

1

Encoder 0 Z phase

Edge Selection Settings

Bit 4

Bit 3

Description

0

0

Capture on Rising Edge

0

1

Capture on Falling Edge

1

0

Capture on Both Edges

1

1

Disable Capture

Trigger Source

Bit 6

Bit 5

Description

0

0

Disable Capture

0

1

Capture during Reverse Rotation

1

0

Capture during Forward Rotation

1

1

Capture during either Rotation

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