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Flow chart for sequence aba – Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE User Manual

Page 140

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5–8

Sequencing Co-injection

Publication 1771-6.5.126 – March 1998

Flow Chart for Sequence ABA

DYC03-B04 = 1

IPC02-B10 = 1

Wait for screw B to reach
position IPC08.

Use set-outputs INC61-64
during suspension.

TRUE

Set to suspend start
until screw B reaches
position IPC08.

FALSE

Set to enable suspension
when screw A reaches
position IPC56.

TRUE

FALSE

Run Injection Cycle
with set-outputs INC09-16

Suspend
Injection Cycle

Wait for screw B to reach
position IPC08.

Use set-outputs INC61-64
during suspension.

Time Delay
IPC07

Timer = 0

Run (resume) Injection Cycle
with set-outputs INC09-16

Start
Pack/Hold
Cycle

disable auto
to Pack/Hold

IPC02-B08 = 1

Injection ends with transition condition, 1st of:
– time

(IPC60) indicated by IPS06-B0

– screw position

(IPC61) indicated by IPS06-B1

– screw pressure

(IPC62) indicated by IPS06-B2

– cavity pressure

(IPC63) indicated by IPS06-B3

TRUE

FALSE

Screw A position

v IPC56

DYCB03-B04 = 1

IPCB02-B10 = 1

Wait for screw A to reach
position IPCB08.

Use set-outputs INCB61-64
during suspension.

TRUE

Set to suspend start
until screw A reaches
position IPCB08.

FALSE

Set to enable suspension
when screw B reaches
position IPCB56.

TRUE

FALSE

Run Injection Cycle
with set-outputs INCB09-16

Suspend
Injection Cycle

Wait for screw A to reach
position IPCB08.

Use set-outputs INCB61-64
during suspension.

Time Delay
IPCB07

Timer = 0

Run (resume) Injection Cycle
with set-outputs INCB09-16

Start
Pack/Hold
Cycle

disable auto
to Pack/Hold

IPCB02-B08 = 1

Injection ends with transition condition, 1st of:
– time

(IPCB60) indicated by IPSB06-B0

– screw position

(IPCB61) indicated by IPSB06-B1

– screw pressure

(IPCB62) indicated by IPSB06-B2

– cavity pressure

(IPCB63) indicated by IPSB06-B3

TRUE

FALSE

Screw B position

v IPCB56

(Suspend Start of Profile)

(Suspend Profile on Position)

Screw A

Screw B

Start Injection
(DYCB02-B04 = 1)

Terminate injection cycle.
Use set-outputs INC33-36.

Terminate injection cycle.
Use set-outputs INCB33-36
until QI(A) completes
injection and bridges to
Pack/Hold.

Note: Screw position values decrease going toward the mold.

Start Injection
(DYC02-B04 = 1))

Screw B Position

v IPCB08

Screw A Position

v IPC08

SYS21-B04 = 1

SYS03-B00 = 1

SYS03-B00 = 1

SYS02-B04 = 1

SYS22-B04 = 1

SYS21-B04 = 0

SYS21-B04 = 1

SYS03-B00 = 1

SYS03-B00 = 1

SYS02-B04 = 1

SYS22-B04 = 1

SYS21-B04 = 0