Electro Cam PL-1746 Series - Manual (Page 104)

6-7 Groups & Modes
Mode 5 - One Cycle Enable with Level-Triggered Input and First Cycle Enable
Description Mode 5 operation is similar to Mode 4 operation, with the following differences:
• In Mode 4, the leading edge of the input terminal
signal must occur within the pulse programmed
into the group channel.
In Mode 5, the group outputs will be enabled if any
portion of the input signal occurs within the pulse.
• If the machine stops, the group outputs will be dis-
abled immediately. This prevents an operation
such as gluing from continuing if the machine stops
while the glue gun is on.
• If the machine is stopped and the group’s input
terminal is ON, energizing the First Cycle Enable
terminal will re-enable the outputs. This allows the
operation to be completed on a product that was
in process when the machine stopped.
Details • Regardless of its programmed OFF point, the pulse in the group channel will end as
soon as any of the outputs in the group turn on.
• Each program in the controller can have different setpoints for output channels and
group channels.
• MOTION ANDING and OUTPUT ENABLE ANDING can be used with outputs oper-
ating in mode 5. Use MOTION ANDING to prevent the First Cycle Enable terminal
from re-activating the outputs while the machine is stopped.
• The machine position for a group operating in mode 5 can be set through GROUP
OFFSET programming.
Mode 5 Example Application
The glue gun will be enabled for one machine
cycle if the sensor sees a carton during the
pulse programmed into the group channel. If a
carton is missing, the glue gun will not activate.
If the line stops, the glue gun will be disabled
immediately. To re-enable the glue gun on the
same machine cycle, depress the push button
while the product sensor is ON.
(continued)