Rockwell Automation 1771-QDC PLASTIC MOLD.MODULE - Manual (Page 102)

2–36 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.
Word Description
EPC60 Ejector Fully Retracted Position Setpoint [16]
When this position is reached during any full retract portion of the Ejector Profile, the module immediately halts the retract portion
and checks the following to determine further control action: EPC64, states of SYS21-B10 - SYS21-B13, and state of EPC03-B12.
if total advance (full + tip strokes) at Ejector Profile
completion is: then the module:
equal to entry in EPC64 and
all bits in SYS21-B10-B13 equal zero sets outputs to values entered in ERC33-ERC40
equal to entry in EPC64 and
any bit in SYS21-B10-B13 equals one gives all output control to ongoing Clamp Open Profile
less than entry in EPC64 and EPC03-B13 equals one checks EPC03-B12 to determine whether to start tip advance or wait for an
F-to-T transition of DYC03-B15 to continue
less than entry in EPC64 and EPC03-B13 equals zero checks EPC03-B12 to determine whether to start full advance or wait for
an F-to-T transition of DYC03-B15 to continue
ejector position equals or is less than this entry sets master status bit SYS03-B15
EPC61 Clamp Position for Start of Ejector Profile [14]
if:
then the module:
clamp position equals or exceeds this entry: checks EPC03-B08 during any of the four Clamp Open Profiles or while it is
holding its outputs to any of the four sets of End of Open Profile Set-output
values (FOC33 - FOC40, SOC33 - SOC40, TOC33 -TOC40, or OSC33 -
OSC40)
EPC03-B08 is RESET immediately begins the Ejector Profile concurrently with any executing
Clamp Open Profiles
EPC62 Clamp Position for Ejector Inhibit [14]
Minimum allowable clamp position for ejector profile action.
if:
then the module:
clamp position is less than or equalsEPC62 ignores DYC02-B14 (Execute Ejector Profile) and DYC03-B15
(Continue Ejector Profile)
it receives DYC02-B14 or DYC03-B15 when sets alarm status bit SYS14-B09
EPC03-B09 = 0 and clamp position is less than
or equal to this entry
actual clamp position equals or is less than sets its outputs to zero and sets alarm status bit SYS14-B09
this value during the execution of an ejector profile
EPC63 Ejector Position for Clamp Close Enable (Ejector Safe) [16]
Maximum allowable clamp position for ejector profile action.
When ejector position exceeds this entry, the module ignores the following action execution commands :
DYC02-B00 - Execute First Clamp Close Profile
DYC02-B01 - Execute Second Clamp Close Profile
DYC02-B02 - Execute Third Clamp Close Profile
DYC02-B03 - Execute Low Pressure Close Profile
if:
then the module:
it receives one of these action execution sets alarm status bit SYS14-B08
commands when ejector position exceeds this entry
ejector position exceeds this value during sets its outputs to zero and sets alarm status bit SYS14-B08
execution of one of the four Clamp Close Profiles
EPC64 Ejector Strokes Required [30]
The module uses this entry as a counter preset to determine how many times the ejector position must attain one of its advanced
positions (EPC59 or EPC29) during the Ejector Profile before the module is allowed to initiate the final full retract portion of the
Ejector Profile. A zero entry inhibits the entire Ejector Profile and the module will not respond to command bit DYC02-B14.
If EPC63 = 1, EPC03-B13 and EPC03-B15 have no effect on Ejector Profile execution.