Allen-Bradley ClutchBrake PLC-5 Series - Programming Command Bits

4–6 Write Ladder Logic
Publication 65566.5.1 - October 1996
We present programming examples for command bits B151/03-B151/29.
ATTENTION: You are responsible for your own application
logic. If using our examples, do so only after modifying them
to suit your application. Direct use or misapplication of these
examples could result in unexpected machine motion with
possible personal injury and/or damage to equipment.
Command Bit or Function B151/ Logic
Permit Cycle Start 03 Figure 4.1
Permit Run 04 Figure 4.2
Permit Downstroke
05
Figure 4.3
or Delayed Start Figure 4.4
Permit Upstroke 06 Figure 4.5
Top Stop 07 Figure 4.6
Permit Inch 08 Figure 4.7
Simulate Inch Button 09*
Fi 48
Remote Inch Mode 10*
Figure 4.8
Clutch Pressure ON 11 Figure 4.9
Press in Motion 12 Figure 4.10
Mode Change from Remote Selector 13*, 14 * Figure 4.11
Enable Crowbar Relay 15 *
Fi 412
Auxiliary Valve Cycles with Clutch Valve 16, 17
Figure 4.12
Main Motor Forward 18 Figure 4.13
Control Soft" Clutch and Brake Operation 15, 16, 19, 22 Figure 4.14
Indicate Absence of Physical Inputs
19, 20, 21, 22 Figure 4.15
Fault Reset 23 * Figure 4.16
Remote Microinch Mode 24* Figure 4.17
Simulate Run Buttons 25 * Figure 4.18
Remote Automatic Singlestroke Mode 26 * Figure 4.19
Arm for Continuous on Demand 27 * Figure 4.20
Inch Output Enabled 28 Figure 4.21
Initiate Automatic Single Stroke 29 * Figure 4.22
* Program these bits by turning them ON. Program all other bits by turning them OFF.
We present these additional programming examples under separate
headings later in this chapter:
How to Exchange Scanner Data Between Processors Figure 4.23
Using Fault and Prompt Bits (Generate BCD Number) Figure 4.24
Programming Shorter Presets for Internal Timers Figure 4.25
Programming Press Readytostart Indicators Figure 4.26
Programming a Brake Monitor Figure 4.27
Programming a Variable Speed Top Stop Figure 4.28
Programming
Command Bits