
Chapter 4 ELECTRICS
4 - 17
GT 326-E
4.6.2 Signals from the lathe to the bar feeder
The interface logic can be configured with service parameters. Only trained personnel
should change these settings.
a) 24V DC power supply
All the signals from the lathe were powered by the 24V DC from the bar feeder. When the
corresponding relay energized at the lathe, 24V DC travels through corresponding contact and
return to PLC. The PLC hence receives lathe signals.
b) Emergency stop signals from the lathe
This contacts XT8 and XT9 are parts of the emergency stop loop of the bar feeder. When the
emergency circuit is open between XT8 and XT9, the bar feeder goes to EMERGENCY STOP
MODE and arise an e01 alarm and energize relay R1.
c) Lathe collet signal A1 (PLC input X40)
Collet signal is for confirming the status of lathe chuck (collet). This signal starts feeding and bar
change process of bar feeder by itself or combination with other signals.
The signal logic will be handled according to INTERFACE00 setup.
d) Auto cycle signal A2 (PLC input X41)
This signal indicates that lathe is in automatic mode and lathe is executing the machining
program cyclically. This signal is used for lathe to control pushing forward actions of bar feeders.
Pushing forward actions includes First feed, feed into the lathe, feed when lathe chuck is open
and lathe chuck is close in synchronization mode.
The signal logic will be handled according to INTERFACE10 setup.
e) Start loading signal A3 (PLC input X42)
This signal is used for lathe to decide the timing of pusher to return for changing a new bar stock
after Bar end signal is sent from the bar feeder.
The signal logic will be handled according to INTERFACE04 setup.
f) Push signal A4 (PLC input X43)
Push signal is used for lathe to control pushing forward actions during machining. Pushing
forward actions includes “feeding when lathe chuck is open” and “lathe chuck is close in
machining”.
The signal logic will be handled according to INTERFACE11 setup.
g) Lathe door signal A7 (PLC input X37)
Door closed signal is used to control the speed of bar feeder in manual mode when lathe door is
closed/open.
Содержание GT 326-E
Страница 7: ...1 4 Chapter 1 BASIC NOTIONS GT 326 E...
Страница 10: ...Chapter 2 TECHNICAL DATA 2 3 GT 326 E 2 4 FLOOR PLAN LtoRF Bar Feeder...
Страница 11: ...2 4 Chapter 2 TECHNICAL DATA GT 326 E RtoLF Bar Feeder...
Страница 13: ...2 6 Chapter 2 TECHNICAL DATA GT 326 E...
Страница 31: ...4 10 Chapter 4 ELECTRICS GT 326 E 4 4 PLC I O Circuit diagram XA1 25 A001C V1 Torque V2 Speed...
Страница 32: ...Chapter 4 ELECTRICS 4 11 GT 326 E 4 5 DIAGRAMS 4 5 1 AC circuit Circuit diagram XA1 25 A001C...
Страница 33: ...4 12 Chapter 4 ELECTRICS GT 326 E 4 5 2 Emergency stop circuit Circuit diagram XA1 25 A001C...
Страница 34: ...Chapter 4 ELECTRICS 4 13 GT 326 E Circuit diagram XA1 25 A001C...
Страница 35: ...4 14 Chapter 4 ELECTRICS GT 326 E Circuit diagram XA1 25 A001C...
Страница 37: ...4 16 Chapter 4 ELECTRICS GT 326 E Interface diagram BXA00001...
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Страница 48: ...Chapter 5 PNEUMATICS 5 7 GT 326 E 5 5 PNEUMATIC DIAGRAMS Pneumatic drawing XA1 27 P001A...
Страница 49: ...5 8 Chapter 5 PNEUMATICS GT 326 E Pneumatic drawing XA1 27 P001A...
Страница 111: ...8 34 Chapter 8 OPERATION GT 326 E 8 5 2 1 Timing chart reference 1 Start loading signal A3...
Страница 112: ...Chapter 8 OPERATION 8 35 GT 326 E 2 Push signal A4...
Страница 113: ...8 36 Chapter 8 OPERATION GT 326 E 3 Start signal R2 INTERFACE13 INTERFACE14 INTERFACE15 INTERFACE16...
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