
7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL B-63323EN-1/03
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7.1.7 Override
7.1.7.1 Rapid traverse override
Overview
The rapid traverse rate can be overridden as follows:
F0, F1%, 50%, 100%
F0:Feedrate to be set for each axis (parameter No. 1421)
F1:Percentage (parameter No. 1412)
or, 0% to 100% (in steps of 1%) by setting bit 0 (ROV) of
parameter No. 1402
Fig. 7.1.7 (a) Rapid traverse override
- Feedrate
Actual feedrate is obtained by multiplying the rapid traverse rate preset
by parameter no.1420 by the override value determined by this signal,
whether in automatic or manual operation (including manual reference
position return).
-F0 rate
For F0 value, an absolute value is set by parameter no.1421 within a
range of 0 to rapid traverse rate (for each axis).
-F1%
Set F1, i.e., the feedrate override value, for parameter No. 1412, to a
value in the range of 0 to 100%.
- 1% step rapid traverse override selection signal
1% step rapid traverse override selection signal ROV iNo.1402#0 j
determines whether rapid traverse override specified with rapid
traverse override signals ROV1 and ROV2 is used or 1% step rapid
traverse override is used.
When signal ROV is 0, override is applied to the rapid traverse rate
using signals ROV1 and ROV2.
When signal ROV is 1, ROV1 and ROV2 are ignored, 1% step rapid
traverse override signals *RV0B to *RV6B being used to override the
rapid traverse rate.
- PMC axis control
Control signals are dedicated to PMC axis control. The rapid traverse
overrides described in this section are not effective.
(See Chapter 15 PMC axis control.)
Rapid traverse rate
10 m/min
Override 50% 5m/min