GSK GSK988TA, Manual

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GSK988TA/GSK988TA1/GSK988TB Turning Center CNC System User Manual 【 Programming & Operation 】
32
Ⅰ
Programming
Note 7: When compiling a G code in one block needs a word, and the compiled cannot use the word, the word
is ignored(for example: G00 X_ Z_ R_
，
R_ is ignored); when the ignored word format is not correct,
the alarm occurs (For example: G00 X_ Z_ R2.3.1
）
.
Note 9: When compiling No.1020 does not have the axis word including the absolute address or incremental
address, an alarm occurs.
2.1.2 Omitting Word Input
To simplify the programming, their code values are reserved after executing words in Table 2-2. If
the words are contained in the previous blocks, they cannot be input when the words are used with
the same values and definitions in the following blocks.
Table 2-2
Code address Function Initial value when power-on
Cutting depth in G71 NO.5132 value
U
Move distance of X tool retraction in G73
NO.5135 value
Cutting depth in G72 NO.5132 value
W
Move distance of X tool retraction in G73
NO.5136 value
Move distance of tool retraction in G71, G72
cycle NO.5133 value
Cycle times of stock removal in turning in
G73 NO.5137 value
Move distance of tool retraction after cutting
in G74, G75
NO.5139 value
Allowance of finishing in G76 NO.5141 value
R
Taper in G90, G92, G94, G96
0
P
Finishing times of thread cutting in G76;
Tool retraction width of thread cutting in G76
Angle of tool nose of thread cutting in G76; NO.5142 value
NO.5130 value
NO.5143 value
Q Least cutting value in G76 NO.5140 value
Metric pitch(G32, G92, G76)
0
Feedrate per minute(G98) NO.1411 value
F
Feedrate per rotation (G99)
NO.1411 value multiplying
0.001
Spindle speed specified(G97) 0
S
Spindle surface speed specified(G96) 0
Note 1: For the code addresses with functions (such as F, used for feedrate per minute, feedrate per rev and
metric pitch and so on), they can be omitted not to input when executing the same function to definite
words after the words are executed. For example, after executing G98 F_ without executing the thread
code, the pitch must be input with F word when machining metric thread.
Note 2: When the words in the above table (except for F, S) are not omitted, the input new code value is written
to the corresponding parameter.
Note 3: When X （ U ） , Y （ V ） , Z （ W ） , A, B or C （ H ） are used to the end point coordinates of the specified block
and their words in the block are not input, the system takes the absolute coordinates of the current X,
Y, Z, A, B or C as the coordinates of the end point.
Example 1 ：（ run after the first power-on ）：
O0003
；
G98 F500 G01 X100 Z100 ； （ G98: feed/minute ， 500mm/min ）
G92 X50 W-20 F2
； （
thread cutting, F must be input when it is the pitch
）