beautypg.com

Rockwell Automation 1771-QDC, D17716.5.93(Passport) PLASTIC MOLDING MODULE User Manual

Page 161

background image

Load Initial Profile Setpoints

Chapter 8

8-44

Enable/Disable Ejectors

(EPC03)

- BIT 09 controls whether the QDC module performs any profiled

ejector movement. The QDC module:

0 = Executes profiled ejector movement
1 = Inhibits any profiled ejector movement

We recorded zero to enable ejector movement on Worksheet 8-F.

Logical Bridge

(EPC03)

- BIT 08 controls how the QDC module starts the ejector profile:

0 = upon clamp position during clamp open profiles
1 = on command from the PLC processor

We recorded a 1 to start on PLC command on Worksheet 8-F.

Profile Algorithm

(EPC03)

- BIT 00 selects which algorithm the QDC module uses for the ejector

profile.

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

We recorded a value of 1 for a pressure vs. position algorithm.

Important: All other bit selections in EPC03 should be zero.

Expert Response Compensation

(EPC04

)

- BITs 09 and 08 determine whether you apply Expert Response

Compensation (ERC) to ejector 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 term deviations.

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

We recorded a value of 1 (ERC = Off) on Worksheet 8-F.