Rockwell Automation 1771-QDC PLASTIC MOLD.MODULE User Manual

Page 99

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2–33

Command Word/Bit Descriptions

Publication 1771-6.5.88 – July 1997

EPC

Word

Description

EPC23

Tip Retract Position Setpoint [16]
When this ejector position is reached while the module is executing any tip retract portion of the Ejector Profile, it immediately halts
the tip retract portion of the Ejector Profile and checks the state of EPC03-B12 to determine if it may immediately start the tip retract
portion of the profile or wait for an F-to-T transition of DYC03-B15 to continue.
if:

then the module:

non-zero

sets master status bit SYS03-B14 when ejector position equals or is less than this entry

zero

causes SYS03-B14 to operate identically to SYS03-B15

EPC24 - 26

Reserved

Ejector Tip Advance Profile Setpoints

Word

Description

EPC27

Tip Advance Velocity Setpoint [09] or [10]
if:

then the module:

you select Vel/Pos profile execution

controls ejector advance speed to this setpoint after starting any tip advance portion of
the Ejector Profile until ejector position reaches the smaller of EPC29 or EPC59

EPC03-B14 is RESET

reads this parameter in percent velocity

EPC03-B14 is SET

reads it in in.(mm)/s

EPC28

Tip Advance Pressure Setpoint [03]
if:

then the module:

you select Press/Pos profile execution

controls ejector advance pressure to this setpoint after starting any tip advance portion
of the Ejector Profile until ejector position reaches the smaller of EPC29 or EPC59

EPC29

End of Tip Advance Position
When this ejector position is reached while the module is executing any tip advance portion of the Ejector Profile, the module
immediately terminates the tip advance portion of the Ejector Profile and checks the following for further control action: EPC64,
the state of EPC03-B15, and the state of EPC03-B12.

if:

then the module:

non-zero

sets master bit status bit SYS03-B13 when ejector position equals or ex-
ceeds this entry

zero

causes SYS03-B13 to operate identically to SYS03-B12

total advance (full + tip strokes) at Ejector Profile
completion is equal to entry in EPC64 and
EPC03-B15 is SET

checks EPC03-B12 to determine whether to start final full retract or wait for
an F-to-T transition of DYC03-B15 to continue

total advance (full + tip strokes) at Ejector Profile
completion is equal to entry in EPC64 and
EPC03-B15 is RESET

sets its valve outputs to End of Advance stroke values (EAC33-EAC40)
for the duration of the dwell preset (EPC57) and
checks EPC03-B12 to determine whether to start final full retract or wait for
an F-to-T transition of DYC03-B15 to continue

total advance (full + tip strokes) at Ejector Profile
completion is less than entry in EPC64

checks EPC03-B12 to determine whether to start tip retract or wait for an
F-to-T transition of DYC03-B15 to continue

EPC30 - 32

Reserved

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