Automationdirect.com DL06 - Page 18

DL06 Micro PLC User Manual, 3rd Edition, Rev. E
xiii
Table of Contents
Introduction ...........................................................................................................8–58
Ramp/Soak Table ...................................................................................................8–59
Ramp/Soak Table Flags ...........................................................................................8–61
Ramp/Soak Generator Enable ................................................................................. 8–61
Ramp/Soak Controls ...............................................................................................8–61
Ramp/Soak Profile Monitoring ................................................................................8–62
Ramp/Soak Programming Errors .............................................................................8–62
Testing Your Ramp/Soak Profile ..............................................................................8–62
DirectSOFT Ramp/Soak Example ............................................................................. 8-63
Setup the Profile in PID Setup ................................................................................ 8-63
Program the Ramp/Soak Control in Relay Ladder ................................................... 8-63
Test the Profile ....................................................................................................... 8-64
Cascade Control .......................................................................................................8–65
Introduction ...........................................................................................................8–65
Cascaded Loops in the DL06 CPU ..........................................................................8–66
Tuning Cascaded Loops .........................................................................................8–67
Time-Proportioning Control ....................................................................................8–68
On/Off Control Program Example ..........................................................................8–69
Feedforward Control ...............................................................................................8–70
Feedforward Example .............................................................................................8–71
PID Example Program .............................................................................................8–72
Program Setup for the PID Loop ............................................................................8–72
Troubleshooting Tips...............................................................................................8–75
Glossary of PID Loop Terminology .........................................................................8–77
Bibliography ...........................................................................................................8–79
Chapter 9: Maintenance and Troubleshooting
Hardware System Maintenance ................................................................................9–2
Standard Maintenance .............................................................................................9–2
Diagnostics .................................................................................................................9–2
Diagnostics ...............................................................................................................9–2
Fatal Errors ...............................................................................................................9–2
Non-fatal Errors ........................................................................................................9–2
V-memory Error Code Locations ...............................................................................9–3
Special Relays (SP) Corresponding to Error Codes ....................................................9–3