Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE - Manual (Page 135)

5–3 Sequencing Co-injection
Publication 1771-6.5.126 – March 1998
We present two examples:
•
QI(A)’s suspended outputs are turned off
•
QI(A)’s suspended outputs are programmed
ЙЙЙЙЙЙ
ЙЙЙЙЙЙ ЗЗЗЗЗЗЗ
ЗЗЗЗЗЗЗ
A
B
ЙЙЙЙ
ЙЙЙЙ
A suspended outputs
suspended start
Time
Suspended Outputs are Turned Off
You command QI(A) and QI(B) to start at the same time. QI(B)
suspends start of injection, then starts on screw position of A when
QI(A) suspends injection. Then QI(A) resumes injection on screw
position of B. QI(B) is disabled from bridging to pack/hold. QI(A)’s
outputs go off during suspended injection. The sequence is:
– suspend start of B
– inject part of A
– from some point (aaa) in A, suspend A and inject B to completion
– from some point (bbb) in B, resume A to completion
Description: QI(A) setup: QI(B) setup: Co-inj. word/bit:
enable injection cycle suspension on start
(start injection at other screw position IPC08)
No Yes DYCB03-BO4 = 1
disable automatic sequence into pack/hold No Yes IPCB02-B08 = 1
enable injection suspension on own screw position IPC56 Yes No IPC02-B10 = 1
screw position of other to exit suspension at bbb at aaa
IPC08 = bbb
IPCB08 = aaa
own screw position to suspend own injection at aaa No IPC56 = aaa
QI(A)’s Injection Profile
1 2 3 4 5 6
2 3 1
0
4
0
Pressure
Pressure
Time
Time
Start is suspended til
other reaches IPC08
bbb aaa
QI(B)’s Injection Profile
ABA