Rockwell Automation 1771-QI,D17716.5.126 PLASTIC MOLD.MODULE - Manual (Page 44)

2–12 Command Word/Bit Descriptions
Publication 1771-6.5.126 – March 1998
Notes: For [ ] engineering units, see page 2.
Ram (Screw) Pressure Control Limits
Word Description
HDC41 Ram (Screw) Pressure Minimum Control Limit [01] Minimum controllable ram (screw) pressure attainable during any Ram Press/
Time Hold Profile. The module expects this ram (screw) pressure when setting its selected ram (screw) pressure valve to the %-out-
put in HDC43.
HDC42 Ram (Screw) Pressure Maximum Control Limit [01] Maximum controllable ram (screw) pressure attainable during any Ram Press/
Time Hold Profile. The module expects this ram (screw) pressure when setting its selected ram (screw) pressure valve to the %-out-
put in HDC44.
HDC43 Selected Ram (Screw) Pressure Valve Output for Minimum [19] 0% CV output percentage that the module uses to drive the se-
lected pressure valve during any Ram Press/Time Hold Profile. The module expects a pressure equal to HDC41 when setting the
selected ram (screw) pressure valve to this %-output during profile execution. Ram Press/Time Hold Profile will be executed as a
reverse-acting algorithm if this entry is greater than HDC44.
HDC44 Selected Ram (Screw) Pressure Valve Output for Maximum [19] 100% CV output percentage that the module uses to drive the
selected pressure valve during any Ram Press/Time Hold Profile. The module expects a pressure equal to HDC42 when setting the
selected ram (screw) pressure valve to this %-output during profile execution. Ram Press/Time Hold Profile will be executed as a
reverse-acting algorithm if this entry is less than HDC43.
Cavity Pressure Control Limits
Word Description
HDC45 Cavity Pressure Minimum Control Limit [04] Minimum controllable cavity pressure attainable during any Cav Press/Time Hold Pro-
file. The module expects this cavity pressure when setting its selected cavity pressure valve to the %-output in HDC47.
HDC46 Cavity Pressure Maximum Control Limit [04] Maximum controllable cavity pressure attainable during any Cav Press/Time Hold Pro-
file . The module expects this cavity pressure when setting its selected cavity pressure valve to the %-output in HDC48.
HDC47 Selected Cavity Pressure Valve Output for Minimum [19] 0% CV output percentage that the module uses to drive the selected pres-
sure valve during any Cav Press/Time Hold Profile. The module expects a pressure equal to HDC45 when setting the selected
cavity pressure valve to this %-output during profile execution. The Cav Press/Time Hold Profile will be executed as a reverse-acting
algorithm if this entry is greater than HDC48.
HDC48 Selected Cavity Pressure Valve Output for Maximum [19] 100% CV output percentage that the module uses to drive the selected
pressure valve during any Cav Press/Time Hold Profile. The module expects a pressure equal to HDC46 when setting the selected
cavity pressure valve to this %-output during profile execution. The Cav Press/Time Hold Profile will be executed as a reverse-acting
algorithm if this entry is less than HDC47.
Profile Tuning Constants
Word Description
HDC49 Proportional Gain for Ram Press Control [30]
HDC50 Integral Gain for Ram Press Control [27] or [28]
HDC51 Derivative Gain for Ram Press Control [26] or [21]
HDC52 Proportional Gain for Cav Press Control [30]
HDC53 Integral Gain for Cav Press Control [27] or [28]
HDC54 Derivative Gain for Cav Press Control [26] or [21]
HDC55 - 56 RFU
Profile Pressure Alarm Setpoint
Word Description
HDC57 Profile High Ram (Screw) Pressure Alarm Setpoint [01] The module compares real-time ram (screw) pressure against this entry
when executing the Hold Profile. The module sets alarm status bit SYS06-B04 when ram (screw) pressure equals or exceeds this
entry during the Hold Profile. A zero entry inhibits SYS06-B04.
HDC58 Profile High Cavity Pressure Alarm Setpoint [04] The module compares real-time cavity pressure against this entry when executing
the Hold Profile. The module sets alarm status bit SYS06-B05 when cavity pressure equals or exceeds this entry during the Hold
Profile. A zero entry inhibits SYS06-B05.
HDC59 - 64 RFU