Haas+Sohn HRT 160, Operator'S And Service Manual

Page: 33 / 65

32 96-5047 rev L June 2005
4.6 A
BSOLUTE
/ I
NCREMENTAL
M
OTION
G90 and G91 are used to select absolute (G90) or incremental (G91) motion. G90 is the only command
allowing absolute positioning.
4.7 F
EED
R
ATES
The feed rate display ranges between 00.001 and 080.000 (Maximum 080.000 for HRT 160, 060.000 for HRT
210, 050.000 for HRT 310, and 050.000 for HRT 450), preceded by an F. It displays the feed rate that will be
used for the selected step. The feed rate corresponds to degrees rotated per second. A feed rate of 080.000
means the platter will rotate 80 degrees (80
o ) in one second.
4.8 L
OOP
C
OUNTS
Loop Counts allow you to repeat a step up to 999 times before going on to the next step. The loop count
display is three digits between 1 and 999 preceded by an L. In RUN mode, it displays the remaining loop
counts for the selected step. It is also used in conjunction with the Circle Division function to enter the
number of divisions in the circle from 2 to 999. Used in conjunction with G96, the Loop Count specifies the
number of times you wish to repeat that subroutine.
4.9 S
UBROUTINES
(G96)
Subroutines allow you to repeat a particular step sequence up to 999 times. A subroutine is invoked by entering
96 into the G code. After entering 96 you must DISPLAY SCAN over to the LOC (short for location) register to
enter the step you wish to jump to. The location register replaces the feed rate register and is only present on
G96 steps. After executing a G96 step, the control will jump to the step called out in the LOC register, execute
that step and the ones following until it reaches G code 95 or 99, the end of subroutine call. The program then
jumps back to the step following G96.
A subroutine can be repeated a number of times by utilizing the loop count of the G96 step. To end the subrou-
tine, you must insert a G code of 95 or 99 after the last sequence step. A subroutine call is not considered a
step by itself since it will always execute itself and the first step of the subroutine. Nesting of subroutine calls
is not permitted.
4.10 D
ELAY
C
ODE
(G97)
G97 is used to program a dwell or delay time into a program. G97 does not pulse the CNC relay at step
completion. As an example, programming a G97 and setting L=10 will produce a 1 second dwell.
4.11 C
IRCLE
D
IVISION
(G98)
Circle division is selected with a G98. The L count defines how many equal sized parts a circle is to be divided
into. After the L count steps, the servo will be in the same position as it started. Circle division is only available
in the circular modes (i.e., Parameter 12=0, 5, or 6).