4 - 24 CHAPTER 4: ELECTRICS
TRYTON 112 CNC
Note :
When the bar
feed system is
in alarm
mode, the
feeding
pusher control
signal should
also de-
energize
Note :
The
operational
cycle of relay
R2 (pulsed,
latched, etc.)
is controlled
by Service
parameters..
Note :
The
operational
cycle of relay
R3 (pulsed,
latched, etc.)
is controlled
by Service
parameters..
4.3.3 Signals from the bar feed system to the lathe
a) R1 alarm relay
When the bar feed system is in normal operation, the R1 relay signal is energized. In the
event of an alarm or break in the emergency stop circuit, this relay is de-energized.
For safety reasons, this signal should bring to a stop all of the axis movements of the lathe
as well as the rotation of the spindle.
b) R2 confirmation relay
Either: - Confirmation of the feeding pusher forward command
and/or: - Confirmation of the loading of a new bar
After the loading and positioning of the new bar on the lathe spindle, relay R2 confirms the
end of the loading cycle or the part feed out.
c) R3 End of bar signal relay
When the feeding pusher reaches the End of Bar position, relay R3 energizes. This signal
is used to indicate to the lathe that there is not enough material left to make another part. The
CNC must jump into a sub-program to allow the remnant to be dejected.
d) R4 Spindle interlock relay
This signal is present as soon as the bar feed system is in automatic cycle (Aut + Start).
e) Emergency Stop button of the bar feed system (EM1-EM4)
When the Emergency Stop button is pressed, the contact opens. The lathe must be in
Emergency Stop mode, and the feeding pusher signal from the lathe must turn off. Two
normally closed contacts of the Emergency Stop button, are available for connection in the
Emergency Stop circuit of the lathe
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