Suspended outputs are programmed – Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE User Manual
Page 136

5–4
Sequencing Co-injection
Publication 1771-6.5.126 – March 1998
Suspended Outputs are Programmed
Co-injection lets you program suspended outputs with these choices:
•
suspended outputs are turned off (previous example)
•
suspended outputs are your set-outputs in INC61-64 (example 1)
•
the injection output is closed-loop controlled (example 2)
For these examples, refer to the diagram on the next page.
Example 1, You suspend QI(A)’s outputs with set-outputs:
Description:
QI(A) setup:
QI(B) setup:
Co-inj. word/bit:
enable injection cycle suspension on start
No
Yes
DYCB03-BO4 = 1
disable automatic sequence into pack/hold
No
Yes
IPCB02-B08 = 1
enable injection cycle suspension on screw position
Yes
No
IPC02-B10 = 1
During suspended injection, when using closed-loop control of the
injection valve, the other three outputs are set-outputs in INC61-64.
B12 B11
0 0
=
control
all four outputs with set-outputs stored in INC61-64
0
1
= control injection valve with pressure setpoint in IPC55
1
0
= control injection valve with velocity setpoint in IPC54
1
1
= error condition
all four
outputs are
set-outputs
n/a
IPC02-B11 = 0
IPC02-B12 = 0
screw position (of other) to exit suspended injection
at bbb
at aaa
IPC08 = bbb
IPCB08 = aaa
velocity setpoint for closed-loop control during suspended injection
No
No
IPC54 = zero
pressure setpoint for closed-loop control during suspended injection
No
No
IPC55 = zero
screw position to suspend own injection
at aaa
No
IPC56 = aaa
your velocity or pressure set-outputs during suspended injection
in INC61-64
n/a
INC61-64
Example 2, You suspend QI(A)’s outputs with a closed-loop injection
pressure control setpoint (ppp.p) in IPC55 and your set-outputs in
INC61-64. (IPC55 overrides its equivalent set-output in INC61-64.)
Description:
QI(A) setup:
QI(B) setup:
Co-inj. word/bit:
enable injection cycle suspension on start
No
Yes
DYCB03-BO4 = 1
disable automatic sequence into pack/hold
No
Yes
IPCB02-B08 = 1
enable injection cycle suspension on screw position
Yes
No
IPC02-B10 = 1
During suspended injection, when using closed-loop control of the
injection valve, the other three outputs are set-outputs in INC61-64.
B12 B11
0 0
=
control
all four outputs with set-outputs stored in INC61-64
0
1
= control injection valve with pressure setpoint in IPC55
1
0
= control injection valve with velocity setpoint in IPC54
1
1
= error condition
Closed-loop
pressure
setpoint
n/a
IPC02-B11 = 1
IPC02-B12 = 0
screw position (of other) to exit suspended injection
at bbb
at aaa
IPC08 = bbb
IPCB08 = aaa
velocity setpoint for closed-loop control during suspended injection
No
No
IPC54 = zero
setpoint for pressure control during suspended injection
at ppp.p
n/a
IPC55 = ppp.p
screw position to suspend own injection
at aaa
n/a
IPC56 = aaa
your set-outputs during suspended injection
at INC61-64
n/a
INC61-64