Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 66)

Chapter 2
Operating the Control
2-46
Important: All softkeys appear in Figure 2.11 may not appear on your
system due to restricted access. See the beginning of this section and page
2-27 for details.
Table 2.D lists the time part screen fields and their definitions.
Table 2.D
Time Part Screen Field Definitions
Field: Definition:
Program indicates the currently active part program, displayed automatically by the control.
Date indicates the current date setting.
Time indicates the current 24-hour time setting. You can change the time setting provided that you
have supervisor-level access.
Power-on Time/Overall indicates the total accumulated time that the control has been ON. This value is saved in
backup memory each time the control is powered off, so it is restored at its previous value each
time the control is turned ON.
Workpieces Cut/Overall indicates the total number of part programs executed to completion by the control. Use this field
to determine the need for periodic checkups or as a statement of warranty. This counter is
incremented by one each time the control encounters an M02, M30 or an M99 in a main part
program (M99 in a subprogram does not increment this counter, but M02 or M30 does).
Run Time indicates the total accumulated time that part programs were executing with the control in
automatic mode. Use this field with “Power-on Time/After Reset” to estimate the utilization ratio
of the machine.
Power-on Time/After Reset indicates the total accumulated time that the control has been ON. This value is saved in
backup memory each time the control is powered off. It is restored to its previous value each
time the control is turned ON. Use this field with “Run Time” to estimate the utilization ratio of
the machine. The value for this field is cleared to zero when you clear the “Run Time” field to
zero. You cannot clear this field independently.
Cycle Time indicates the elapsed execution time for each individual part program. Cycle time begins
counting when the cycle-start button is pressed and ends when an M02 reset or M30 is
encountered. To reset this field to zero, use the cycle-start button to initiate program execution,
turn off power to the control, or follow the clear/reset procedure.
Workpieces Cut/After Reset indicates the total number of part programs executed to completion by the control since the last
time “Run Time” was reset. This counter is incremented by one each time the control
encounters an M02, M30 or an M99 in a main part program (M99 in a subprogram does not
increment this counter, though M02 or M30 does). The value for this field is cleared to zero
when you clear the “Run Time” field to zero. You cannot clear this field independently.
Lot Size indicates the number of times you need to execute this particular part program.
Remaining Workpieces indicates the number of workpieces that still need to be cut in the lot. The value for this field is
automatically set equal to the lot size each time the “Lot Size” value is changed. When the
control encounters an M02, M30, or M99 in a main part program, the remaining workpieces field
is decremented by one. The control tells the system installers PAL program when the lot
remaining size is zero. At this point, press <CYCLE START> to automatically set the field
back to the “Lot Size” value. Complete operation of this feature is somewhat PAL dependant.
Refer to the documentation supplied by your system installer.
Lot Completion Flag is automatically set to zero by the control whenever a non-zero value is entered for “Lot Size.”
It is set to one when the “Remaining Workpieces” field reaches zero. It is again reset to zero
when the next cycle start occurs after the remaining workpieces field has reached zero.
Complete operation of this feature is somewhat PAL dependant. See the documentation
supplied by your system installer.