LNS Express 220 S2, Инструкция по эксплуатации

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CHAPTER 4: ELECTRICS 35
EXPRESS 220 S2/320 S2
c) Lathe collet signal (Input A1)
This signal is for checking the mode of the lathe collet (open or closed), and is mainly used for feeding
parts.
For safety reasons, wire a normally open contact, coming from the signal of the lathe
collet. A
clamp open
signal must be selected.
d) Lathe in automatic cycle (Input A2)
This signal indicates that the lathe is in automatic cycle.
e) Feeding command (Input A3)
Should the lathe be equipped with a secondary spindle or pickup spindle, if the part requires multiple
feeds (double feeding), or if the lathe is equipped with a sliding headstock, this signal will be used as a
load command for the new bar.
f) Part feeding command (Input A4)
This signal orders the forward movement of the feeding pusher and the bar, independently of the mode of
the lathe collet.
As long as this signal is present, the signal of the foot switch to open and close the lathe
collet must be locked. The lathe should not start up in automatic cycle until the bar is
clamped in the collet.
3.2.3. Signals from the bar feeder to the lathe
a) R1 alarm relay
When the bar feeder is in normal operation, the R1 relay 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.
When the bar feeder is in alarm mode, the feeding pusher control signal should also de-
energize.
b) R2 lathe start and stop relay
Either:
- Confirmation of the pusher command
- Confirmation of the loading of a new bar
After the new bar has been loaded and positioned on the lathe spindle, relay R2 confirms the end of the
loading cycle.
The operational cycle of relay R2 (pulsed, latched, etc.) is controlled by parameters.