Program Execution With Dry Run Feedrate - Siemens SINUMERIK 828D Function Manual

K1: Mode group, channel, program operation, reset response
9.5 Program test
9.5.3

Program execution with dry run feedrate

Function
During "Program execution with dry run feedrate" the traversing speeds, which have been programmed together
with G01, G02, G03, G33, G34 and G35, are replaced by a parameterized feedrate value:
SD42100 $SC_DRY_RUN_FEED (dry run feed rate)
The dry run feedrate also replaces the programmed revolutional feedrate in program blocks with G95.
The exact way of working of the parameterized dry run feedrate (SD42100) depends on the setting of another
setting data:
SD42101 $SC_DRY_RUN_FEED_MODE (Mode for test run speed)
Value Meaning
0 Dry run feedrate is the maximum of the programmed feedrate and setting data SD42100.
(Default setting!)
⇒ SD42100 becomes effective only when the stored value is greater than the programmed
feedrate.
1 Dry run feedrate is the minimum of the programmed feedrate and SD42100.
⇒ SD42100 becomes effective only when the stored value is less than the programmed
feedrate.
2 The value in SD42100 acts as the dry run feed rate, regardless of the programmed feedrate.
10 As in the case of "0", except thread cutting (G33, G34, G35) and thread boring (G331, G332,
G63). These functions are executed as programmed.
11 As in the case of "1", except thread cutting (G33, G34, G35) and thread boring (G331, G332,
G63). These functions are executed as programmed.
12 As in the case of "2", except thread cutting (G33, G34, G35) and thread boring (G331, G332,
G63). These functions are executed as programmed.
A dry run feedrate can be selected in the automatic modes and activated on interruption of an automatic mode or
end of a block.
For more information on influencing the feedrate, see "V1: Feedrates [Page 1363]".
Application
Workpieces may not be machined when "dry run feedrate" is active because the altered
feedrates might cause the permissible tool cutting rates to be exceeded and the workpiece or
machine tool could be damaged.
500
DANGER
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions