Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD - Manual (Page 50)

Voting Processor Firmware
Chapter 5
5Ć11
Figure 5.6
Operational Sequence for First Downstroke in Continuous Mode
First Downstroke.
From figure 5.5
Has an operator released a
RUN button, or has a barrier
guard opened?
Both voting processors
deĆenergize their solenoid triacs
to stop the shaft. A stop
condition mesage is displayed.
Did the shaft coast into the
nearĆbottom zone while
braking?
CAUTION: Releasing a RUN button
late in the downstroke can damage
the press.
NOTE: Releasing a RUN button during the first downstroke stops the press. If the shaft has
not entered the near bottom zone, operators can resume the downstroke within 5 seconds of
releasing a RUN button. After 5 seconds, operators must restart continuous mode by means
of the arming sequence. 12265
Yes
Both voting processors
energized their solenoid triacs
for the first downstroke
Has the shaft reached the
nearĆbottom position?
Go to First Upstroke.
Figure 5.7
Yes
No
No
No
Have 5 seconds elapsed since
the solenoid triacs were
deĆenergized?
Have all operators released all
RUN buttons?
Has each operator pressed his
RUN buttons simultaneously,
and within 5 seconds for all
stations?
No
Yes
No
No
Go to Figure 5.5
Select Continuous Mode
Select inch mode and position the
shaft near the top.
Stop Condition
From figure 5.7
Yes
Yes
Yes