Detailed Description
2.3 Feedrate control
Feeds (V1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-29
The following permanent assignment applies to binary coding:
Code Override factor
00000000 0,00 ≙ 0%
00000001 0,01 ≙ 1%
00000010 0,02 ≙ 2%
00000011 0,03 ≙ 3%
00000100 0,04 ≙ 4%
. .
. .
. .
01100100 1,00 ≙ 100%
. .
. .
. .
11001000 2,00 ≙ 200%
With Gray coding, the override factors corresponding to the switch setting are entered in
machine data:
MD12070 OVR_FACTOR_SPIND_SPEED [n]
(analysis of spindle override switch).
Activation of spindle override
If G33, G34, G35 active: Effective
(if the spindle is in position control mode, the
override switch may be activated)
If G63 active: Not effective
(the override is set to a fixed value of 100% in the
NC)
If G331, G332 active: Effective
Limiting the override factor
On a binary-coded interface, the maximum possible override factors for path feedrate, axis
feedrate and spindle speed can be further limited with machine data:
MD12100 OVR_FACTOR_LIMIT_BIN
(limit of binary-coded override switch)
Override active DB21, ...DBX6.6/DB21, ... DBX6.7/DB31, ... DBX1.7
The override values set with the selector switch on the machine control panel are
immediately active for all operating modes and machine functions, provided that IS "Rapid
traverse override active", (DB21, ... DBX6.6) "Feedrate overide active" (DB21, ... DBX6.7)
and "Override active" (DB31, ... DBX1.7) are set.
An override factor of 0% acts as a feedrate disable.
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