Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 130)

Load Initial Profile Values for
Machine Tuning
Chapter 8
8-16
The following sections describe how to complete Worksheet 8-C. After
each section is discussed, fill in values for the mentioned words or bits.
Ejector Profile Block Identifier (EPC01)
The first eight bits of this word are used to identify it as the first word in a
series of words used to define the ejector profile. These first eight bits
must be set at 00011000.
Ejector General Definition (EPC03)
The following BITs of EPC03 determine how you define the ejector profile
and how it is executed. All other bits of EPC03 should remain zero.
- BIT 15 selects when the ejector forward dwell starts. The state of
this bit informs the QDC module when to start its internal ejector
forward dwell timer.
0 = starts dwell after final advance stroke
1 = starts dwell after initial advance stroke
At this time, select 0 for bit 15.
- BIT 14 selects how velocity setpoint values for the ejector operation
are interpreted by the QDC module.
0 = Percent Velocity
1 = Inches or Millimeters per second
At this time, select 1 for bit 14.
- BIT 13 informs the QDC module what type of intermediate ejector
strokes are required if EPC64 is greater than one.
0 = All Ejector Strokes to be Full Strokes
1 = Intermediate Ejector Strokes to be Tip Strokes
At this time, select 0 for bit 13.
- BIT 12 controls the QDC modules reaction when it completes any
advance or retract stroke during the Ejector profile.
0 = Ejector Profile to run without interruption
1 = QDC module set-outputs and notifies PLC processor at
end-of stroke
Your initial selection for the state of this bit depends upon the
configuration of your ejector hydraulic circuit.
Determine Bit Selections for
Worksheet 8ĆC