Step: 1 module description, Module description, Features – Rockwell Automation 1746-BLM Blow Molding Module Installation Instructions User Manual
Page 4

4 Blow-molding Module
Publication 1746-IN014B-EN-P - January 2001
Step: 1 Module description
We cover these aspects of module description:
•
features
•
overview
•
communication with SLC processor
•
internal microprocessor
•
internal PID control algorithm
•
analog I/O
•
digital I/O
Features
This 4-axis position-control module has these features:
•
Open-loop or closed-loop control
•
Independent and coordinated axis control
•
Position- and time-based control
•
Accumulator push-out control
•
Zero-scale/full-scale (offset & span) calibration for position inputs
•
PID with anti-windup, bumpless parameter changes, setpoint weighting, and
limited high-frequency derivative gain.
•
Profile interpolation (linear or cubic spline) between setpoints
•
Converging/diverging tooling (direct/reverse acting control)
•
Three hold values per axis: manual position, purge, or die gap
•
Independent profile scale and offset adjustments
•
Automatic parison weight adjustment
•
Setpoint marking