Rockwell Automation 1771-QDC, D17716.5.86(Passport) PLASTIC MOLDING MODULE User Manual

Page 154

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Load Initial Profile Values

Chapter 8

8-33

Profile Algorithm

(OPC03)
The following bits determine the algorithm for each clamp open profile.

- BIT 06 configures the open slow profile
- BIT 04 configures the third clamp open profile
- BIT 02 configures the second clamp open profile
- BIT 00 configures the first clamp open profile

0 = Velocity vs. Position algorithm
1 = Pressure vs. Position algorithm

We set these bits to 1 for pressure vs. position on Worksheet 8-E.

Important: All other bit selections in OPC03 should be zero.

Expert Response Compensation

(OPC04)

- BITs 15, 14, 13, 12, 11, 10, 09, and 08 determine whether you apply

Expert Response Compensation (ERC) to clamp open profiles. ERC
is an exclusive algorithm that adjusts for changes in your machine,
hydraulics, raw materials, and other process variables. It
compensates for abrupt upsets and long run term deviations.

0 = Expert Response Compensation ON
1 = Expert Response Compensation OFF

We set these bits to 1 (ERC = Off) on Worksheet 8-E.

OpenĆloop or ClosedĆloop Control

(OPC04)

- BITs 07, 06, 05, 04, 03, 02, 01, and 00 determine whether you use

open- or closed-loop control of clamp open profiles. In open loop, a
valve position moves the cylinder without sensor feedback. In closed
loop, sensor feedback controls the valve regulating pressure or flow.

0 = Closed loop
1 = Open loop

We set these bits to 1 for open-loop control on Worksheet 8-E.

Important: All other bit selections in OPC03 should be zero.

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