
A-60156E
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Sheet
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No.
Date
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Design
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Descri
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Descri
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Date
DateDate
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FANUC Series 16
i
/18
i
/21
i
– TA/TB
Direct input of offset value measured B
for 2 spindle lathe
Jan.31.02
3/13
3. Setting of Tool Offset Value
Determine a specific point on the machine tool as the measuring reference
position. In advance, set the distance from this point to the measuring position
(contact face of the touch sensor) as a reference value, using parameter No. 5015
to 5018 and No. 5056 to 5059. Select the tool whose offset value is to be
measured, and bring it to touch the sensor, receiving a contact detection signal
(tool compensation value write signal). The mechanical coordinate value is the
distance from the tool nose position of the measuring tool at the mechanical
reference (home) position to the measuring position; set the difference between
this value and the reference value (parameter setting) into the tool offset value
memory as the tool geometry offset value. The corresponding tool wear offset
value becomes 0.
(Tool offset value to be set)
= (Mechanical coordinate value when tool compensation value write signal
has become “1”)
– (Reference value (parameter value) corresponding to the tool
compensation value write signal)
The tool offset numbers are divided into two parts for spindle 1 and spindle 2 by
the parameter No. 5053 are used.
Example )
Value of the parameter No. 5053
Tool offset
number
When setting = 8 When setting = 10
For spindle 1
1
∼
81
∼
10
For spindle 2
9
∼
16 11
∼
16
Note
In case the value of the parameter No. 5053 is 0 or more than the maximum
tool offset number, the tool offset numbers are divided into to parts as follows.
Tool offset pairs 16 32 64 99
For spindle 1
1
∼
81
∼
16 1
∼
32 1
∼
49
For spindle 2
9
∼
16 17
∼
32 33
∼
64 50
∼
99
Tool offset pairs 400 999
For spindle 1
1
∼
200 1
∼
449
For spindle 2
201
∼
400 450
∼
999