
B-63943EN-1/02 1.AXIS CONTROL
- 237 -
Explanation
- Chopping activated by signal input
Before chopping can be started, the chopping axis, reference position,
upper dead point, lower dead point, and chopping feedrate must be set
using the parameter screen (or the chopping screen).
Chopping is started once chopping start signal CHPST has been set to
1. This signal is ignored, however, during chopping axis movement.
When chopping hold signal *CHLD is set to 0 during chopping, the
tool immediately moves to point R. Again setting the chopping hold
signal to 1 restarts chopping.
Chopping can also be stopped by setting chopping start signal CHPST
to 0, but only when chopping was started by using that signal.
Method of starting
chopping
Method of stopping
chopping
State
Signal CHPST = 0 Stopped
Signal CHPST = 1
G80 Stopped
Signal CHPST = 0 Not stopped
G81.1
G80 Stopped
NOTE
1 Switching to manual mode or suspending automatic
operation, by means of feed hold, does not stop
chopping.
2 In chopping mode, a chopping axis move command
or canned cycle command cannot be specified.
3 If a G81.1 command is specified during chopping
started by the signal, chopping is not stopped. If
point R, the upper dead point, lower dead point, or
chopping feedrate has been modified by using the
G81.1 command, chopping is continued, but using
the modified data.
4 The use of chopping start signal CHPST to start
chopping is not enabled immediately after power-on;
it is not enabled until the completion of manual
reference position return.