User Manual

2–40 Command Word/Bit Descriptions
Publication 1771-6.5.88 – July 1997
Notes: 1. For [ ] engineering units, see page 3.
2. When using the Inject/Clamp/Eject mode, all pressure readings are system pressure at input 2, except where noted.
Velocity Control Limits
Word Description
ERC45 Retract stroke Velocity Minimum Control Limit [10] Minimum controllable ejector-retract velocity attainable during any Vel/Pos Ejec-
tor Profile retract stroke. The module expects this ejector-retract velocity when setting its selected velocity-retract valve to the %-out-
put in ERC47.
ERC46 Retract stroke Velocity Maximum Control Limit [10] Maximum controllable ejector-retract velocity attainable during any Vel/Pos Ejec-
tor Profile retract stroke. The module expects this ejector-retract velocity when setting its selected velocity-retract valve to the %-out-
put in ERC48.
ERC47 Selected Velocity Retract Valve Output for Minimum [19] 0% CV output percentage that the module uses to drive the selected veloc-
ity retract valve during any Vel/Pos Ejector Profile. The module expects a velocity equal to ERC45 when setting the selected velocity
retract valve to this %-output during stroke execution. The Vel/Pos Ejector Profile retract stroke will be executed as a reverse-acting
algorithm if this entry is greater than ERC48.
ERC48 Selected Velocity Retract Valve Output for Maximum [19] 100% CV output percentage that the module uses to drive the selected
velocity retract valve during any Vel/Pos Ejector Profile. The module expects a velocity equal to ERC46 when setting the selected
velocity retract valve to this %-output during stroke execution. The Vel/Pos Ejector Profile retract stroke will be executed as a re-
verse-acting algorithm if this entry is less than ERC47.
Retract-stroke Tuning Constants
Word Description
ERC49 Proportional Gain for Pressure Control [30]
ERC50 Integral Gain for Pressure Control [27] or [28]
ERC51 Derivative Gain for Pressure Control [26] or [21]
ERC52 Proportional Gain for Velocity Control [28]
ERC53 Feed Forward Gain for Velocity Control [30]
ERC54 -64 Open
Bit-mapped Control Words
Word Bit Description
FCC01 Block ID = 00000011 (Low byte). High byte reserved for the module. Do not use.
FCC02 Configuration Selections
B00-B02 Selected Velocity Control Valve
The module uses its algorithm to drive the following output during any Vel/Pos First Clamp Close Profile.
B02 B01 B00
0 0 0 Output #1
0 0 1 Output #2
0 1 0 Output #3
0 1 1 Output #4
1 0 0 Output #5
1 0 1 Output #6
1 1 0 Output #7
1 1 1 Output #8
B03 Open
FCC – First Clamp Close
Configuration Block