Rockwell Automation 1771-QDC PLASTIC MOLD.MODULE - Manual (Page 105)

2–39 Command Word/Bit Descriptions
Publication 1771-6.5.88 – July 1997
ERC
Word Description
ERC29 Output #5 Deceleration Ramp Rate during Retract [20]
ERC30 Output #6 Deceleration Ramp Rate during Retract [20]
ERC31 Output #7 Deceleration Ramp Rate during Retract [20]
ERC32 Output #8 Deceleration Ramp Rate during Retract [20]
End of Retract Set-output Values
At the end of each retract stroke during the Ejector Profile, the
module checks the following to determine further control action:
•
state of EPC03-B12
•
states of SYS21-B10 through SYS21-B13
•
completion status of the Ejector Profile
if and and then the module:
EPC03-B12= 0 B10-B13 in SYS21 all
= 0
Ejector Profile is complete uses the ramps ERC17-ERC32 to move its outputs to ERC33-ERC40,
and sets status bit SYS22-B15
EPC03-B12= 0 any one of B10-B13
in SYS21 = 1
Ejector Profile is complete ignores ERC33-ERC40 and gives all output control to the executing
Clamp Open Profile
EPC03-B12= 0 N/A Ejector Profile is incomplete ignores ERC33-ERC40 and continues the Ejector Profile
EPC03-B12= 1 B10-B13 in SYS21 all
= 0
N/A uses the ramps ERC17-ERC32 to move its outputs to ERC33-ERC40,
and sets status bit SYS22-B15
EPC03-B12= 1 any one of B10-B13
in SYS21 = 1
N/A ignores ERC33-ERC40 and gives all output control to the executing
Clamp Open Profile
Word Description
ERC33 Output #1 Set-output Value at End of Retract [19]
ERC34 Output #2 Set-output Value at End of Retract [19]
ERC35 Output #3 Set-output Value at End of Retract [19]
ERC36 Output #4 Set-output Value at End of Retract [19]
ERC37 Output #5 Set-output Value at End of Retract [19]
ERC38 Output #6 Set-output Value at End of Retract [19]
ERC39 Output #7 Set-output Value at End of Retract [19]
ERC40 Output #8 Set-output Value at End of Retract [19]
Pressure Control Limits
Word Description
ERC41 Retract stroke Pressure Minimum Control Limit [03] Minimum controllable ejector-retract pressure attainable during any Press/Pos
Ejector Profile retract stroke. The module expects this ejector- retractpressure when setting its selected pressure retract valve to the
%- output in ERC43.
ERC42 Retract stroke Pressure Maximum Control Limit [03] Maximum controllable ejector-retract pressure attainable during any Press/Pos
Ejector Profile retract stroke. The module expects this ejector- retract pressure when setting its selected pressure retract valve to the
%- output in ERC44.
ERC43 Selected Pressure Retract Valve Output for Minimum [19] 0% CV output percentage that the module uses to drive the selected
pressure retract valve during any Press/Pos Ejector Profile. The module expects a pressure equal to ERC41 when setting the se-
lected pressure retract valve to this %-output during stroke execution. The Press/Pos Ejector Profile retract stroke will be executed
as a reverse-acting algorithm if this entry is greater than ERC44.
ERC44 Selected Pressure Retract Valve Output for Maximum [19] 100% CV output percentage that the module uses to drive the selected
pressure retract valve during any Press/Pos Ejector Profile. The module expects a pressure equal to ERC42 when setting the se-
lected pressure retract valve to this %-output during stroke execution. The Press/Pos Ejector Profileretract stroke will be executed
as a reverse-acting algorithm if this entry is less than ERC43.