Edge Technologies Patriot 338, Operation Manual, Page: 25 / 272

PATRIOT
338/551
19
REV 10:2019
IF wired incorrectly this can cause machines to go into automatic mode when the lathe is not in
automatic. IF wired incorrectly this signal can also cause the bar feeder to not allow feeding
because the automatic signal is not received.
*Needs to be check if wired into the machine interface*
To check if this signal is working correctly on the Edge product, put the bar feeder into automatic
and check the HMI screen. Also, opening the collet should allow the bar feeder to push forward.
Bar change (End of Cycle) - This signal typically corresponds with an M-code from the lathe.
Usually the M-code will be used to send a bar change signal to the bar feeder. When this signal
is sent, if properly setup, the lathe should latch to this M-
code until it receives “cycle start” from
the bar feeder.
This signal is used in conjunction with the collet open signal. If the bar feeder is sending end of
bar signal, then receives collet open, and receives the bar change signal it should remove
remnant and load a bar. Upon loading bar stock, the bar change signal should be answered and
turn off.
Typically, if this is not working correctly it is necessary to check the wiring from lathe to bar
feeder and location in the bar feeder. If these are correct then ensure that the lathe bar change
relay is on when the M-code is latched in the program. Some lathe controls need to have keep
relays turned on or off depending on how signals are being used. Make sure the “cycle start”
signal is set correctly otherwise it will answer bar change.
Chuck/collet open- The chuck open signal lets the bar feeder know that the main spindle clamp
is open or closed. When the bar feeder is in automatic mode and it receives the collet open
signal it will feed at a fixed speed and torque (if all restrictions are satisfied (torque stop, lathe
automatic, door safety, etc).
If this signal is set incorrectly the bar feeder will not operate properly as it will feed at the
incorrect time or not at all.
To correct the signal on Edge products, a wire or jumper may need to be moved to accurately
reflect the state of the collet/chuck. Depending on the type of Edge bar feeder that is being
worked on there will be multiple ways the bar feeder will react when feeding with collet open.
These are a few options. Ensure that the best mode of feeding is selected for the application.
Turret Stop: The bar feeder begins to push when the lathe collet opens and stops pushing after
it presses against the stop. The bar feeder will use feed-out lengths 1 through 3 if set.
Position: The bar feeder pushes the length set in the parameter Part Length 1. The bar feeder
will use the feed-out lengths 1 through 3 if set.