Rockwell Automation 1771-QDC PLASTIC MOLD.MODULE - Manual (Page 116)

2–50 Command Word/Bit Descriptions
Publication 1771-6.5.88 – July 1997
Notes: 1. For [ ] engineering units, see page 3.
2. When using the Inject/Clamp/Eject mode, all pressure readings are system pressure at input 2, except where noted.
Profile Tuning Constants
Word Description
HDC49 Proportional Gain for Ram Press Control [30]
HDC50 Integral Gain for Ram Press Control [27] or [28]
HDC51 Derivative Gain for Ram Press Control [26] or [21]
HDC52 Proportional Gain for Cav Press Control [30]
HDC53 Integral Gain for Cav Press Control [27] or [28]
HDC54 Derivative Gain for Cav Press Control [26] or [21]
HDC55 - 56 Open
Profile Pressure Alarm Setpoint
Word Description
HDC57 Profile High Ram (Screw) Pressure Alarm Setpoint [01] The module compares real-time ram (screw) pressure against this entry
when executing the Hold Profile. The module sets alarm status bit SYS06-B04 when ram (screw) pressure equals or exceeds this
entry during the Hold Profile. A zero entry inhibits SYS06-B04.
HDC58 Profile High Cavity Pressure Alarm Setpoint [04] The module compares real-time cavity pressure against this entry when executing
the Hold Profile. The module sets alarm status bit SYS06-B05 when cavity pressure equals or exceeds this entry during the Hold
Profile. A zero entry inhibits SYS06-B05.
HDC59 - 64 Open
Bit-mapped Control Words
Word Bit Description
HPC01 Block ID = 00001100 (Low byte). High byte reserved for the module. Do not use.
HPC02 Open
HPC03 Configuration Selections
Profile Algorithm Selections
B00 = 0 Ram Press/Time selected for Pack Profile
= 1 Cav Press/Time selected for Pack Profile
B01 Open
B02 = 0 Ram Press/Time selected for Hold Profile
= 1 Cav Press/Time selected for Hold Profile
B03-B07 Open
B08 Hold/Pre-decompression Logical Bridge Selection
= 0 Start Pre-decompression Movement at End of Hold Profile
= 1 Stop and Set-output at End of Hold Profile
The module checks the state of this pause bit upon completion of Hold Profile to determine what further action to take:
if:
then the module:
SET sets its outputs to HDC33 - HDC40
RESET, SYS15-B12 = 1, immediately begins the Pre-decompression Movement
and PRC05 > 00000
RESET, SYS15-B12 = 1, reacts as if it had just completed the Pre-decompression Movement and continues
and PRC05 = 00000 operation based on the state of HPC03-B09
RESET, SYS15-B12 = 0, reacts as if it had just received an F-to-T transition of DYC02-B08
and HPC03-B09 = 0
RESET, SYS15-B12 = 0, sets its outputs to zero and latches SYS13-B08
and HPC03-B09 = 1
HPC – Pack/Hold Profile Block