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Chapter 2 Definition and Connection of Interface Signal
387
Ⅲ
Connection
DT09
DT08
DT07
TL-
TCP
T1~T8
TL+
Sequence of tool change mode B
2. CHTB (K11.1)=0
,
CHTA (K11.0)=1: YA_XING hydraulic tool post HLT series:
2.1 Signal explanation
Signal type
Code
Interface
Add.
Function Remark
CN61.16 X1.7 T01
tool
signal
CN61.29 X2.0 T02
tool
signal
CN61.30 X2.1 T03
tool
signal
CN61.31 X2.2 T04
tool
signal
Cutter position 8421
code
CN61.8 X0.7 TCP
tool post locked
signal
Normally-closed
contactor (Low
LEVEL enabled)
CN61.9 X1.0 SELE
tool post strobe
signal
Input
signal
CN61.10 X1.1 TUCP
tool post released
signal
Normally-closed
contactor (Low
LEVEL enabled)
CN62.15
Y1.6
TL+
tool post CW rotation
CN62.16 Y1.7 TL-
tool post CCW
rotation
CN62.29 Y2.0 TRLS
tool post released
outout
Output
signal
CN62.30 Y2.1 TCLP
tool post locked
outout
Notice: The cutter-head clamping signal and releasing signal are normally-closed
contactor, which are enabled in low LEVEL.
2.2 Tool-change schedule
①
Cutter-head relases and waits for that the cutter-head releasing signal is low LEVEL.
②
The system judges the shortest path based upon the destination tool number and current
tool number; select the output rotation direction in terms of the principle of the
approximated tool-selection regardless of the positive signal (TL+) or negative one (TL-),
the tool starts to rotate and perform the tool-selection.
③
In the rotation process, the system performs the coding based upon the cutter position
encoder signals T1~T4 to identify the current tool number. When rotating to the previous