Allen-Bradley ClutchBrake PLC-5 Series - Select from These Command Bits

4–3Write Ladder Logic
Publication 65566.5.1 - October 1996
You may program one or more of the following command bits in
Program File 15 to customize the operation of your press. Your
control system will control the clutch/brake mechanism even if you
program none of them.
Important: Protected memory in PF2 sets these bits to default status.
These bits are turned ON every scan with these exceptions:
Where noted by [ 1 ] below, these bits are turned OFF every scan.
Bit Address ON/OFF States Example Application Example Ladder Logic
ACAM, BCAM,
and TCAM
B151/00,
/01, /02
Refer to chapter 7, Figure 7.1. Monitor the shaft position
during press strokes.
Refer to chapter 7, Figure 7.5.
Permit
Cycle Start
B151/03 ON - must be ON to enable run buttons
OFF- may turn OFF after the press starts
If not set prior to pressing Run
buttons, operator must release
and repress them.
LS (home) B151/03
--] [-------------------( )-
Permit Run B151/04 ON - must be ON before pressing run buttons
OFF - turns OFF press outputs in single and
continuous mode
Use to ensure that safety
interlocks are in safe state
before enabling Run buttons.
Interlocks B151/04
--] [--] [--] [--] / [-----( )-
Permit
Downstroke
B151/05 ON - last logical condition to start downstroke
OFF - prevents movement in downstroke zone
Use with run buttons for delayed
start: Run buttons can be pressed
and held until this bit is set.
Timer DN B151/05
--] [------------------( )-
Permit
Upstroke
B151/06 ON - must be ON during upstroke
(when on takeover cam)
OFF - stops upstroke
Halts upstroke if a mechanical
device is in a danger zone.
LS (danger) B151/06
--] [------------------( )-
Top Stop B151/07 ON - must be ON to start continuous stroking
OFF- turns clutch output OFF at next stroke top
Halts continuous stroking. Remote cycle stop B151/07
--] [------------------( )-
Permit Inch B151/08 ON - must be ON to inch the press
OFF - stops inch motion
Permissive switches must be OK
to start or continue inch motion.
Permissives B151/08
--] [--] [--] / [---------( )-
Simulate Inch
Buttons
B151/09
[ 1 ]
Used with remote inch mode (bit 10) and
remote microinch mode (bit 24):
ON - simulates pressing manual inch buttons
OFF - simulates releasing inch buttons
Simulates the pressisng of manual
inch buttons.
Inch Logic B151/09
--] [--] / [-------------( )-
Remote
Inch Mode
B151/10
[ 1 ]
ON - lets your logic switch the mode to inch
OFF - inhibits use of bit 09, Simulate Inch, and
logic must select another remote mode.
Allows automatic inch motion with
Simulated Inch Buttons (bit 09).
Enable B151/10
--] [------------------( )-
Clutch
Pressure ON
B151/11 ON - must turn ON for single/continuous stroking.
OFF - disables press outputs at loss of pressure
(must be OFF to start single or continuous)
For analog input: Must turn ON to
detect that press is powered.
| GEQ | B151/11
| |----------------( )-
Press in
Motion
B151/12 ON - must be ON for single/continuous stroking
OFF - disables press outputs at loss of motion
(must be OFF to start single or continuous)
Must turn ON within preset
(3 sec) of C/B power to detect that
the press is moving.
Centrifugal Sw B151/12
--] [------------------( )-
Remote
Single Mode
B151/13
[ 1 ]
ON - lets your logic switch the mode to single
OFF - prevents same. When OFF, your logic
must select another remote mode.
Set main selector switch to remote
and use automationsimulated run
buttons.
Master Control
Remote Selector B151/13
--] [-------------- ---( )-
Remote
Continuous
Mode
B151/14
[ 1 ]
ON - lets logic switch the mode to continuous
OFF - prevents same. When OFF, your logic
must select another remote mode.
Automated presses are cycled
from a master controller (or from a
line supervisor).
Master Control
Remote Selector B151/14
--] [------------------( )-
Enable
Crowbar Relay
B151/15
[ 1 ]
ON - crowbar relay circuit is enabled
OFF - crowbar relay circuit is passive
Supplements EStop. Shorts L1 to
L2 if seal relay does not open.
B151/15
----------------------( )-
[ 1 ] Important: These bits are held OFF in ladder logic unless your custom ladder logic turns them ON.
Select from These
Command Bits