
A-79196E
Title
Draw
No.
Ed. Date Design Description
Date Jan.06.’04 Design. Apprv.
2/5
Page
FANUC Series 30i-MODEL A
Temporary absolute coordinate setting
Outline
In the full closed system with an inner absolute position pulse coder (serial
pulse coder) and an incremental scale, the position is set by using absolute
position data from the inner absolute position pulse coder at the power on
sequence. After that, the position is controlled with incremental data from
the incremental scale. The position just after power on sequence is rough,
and the manual reference position return is required to get the accurate
position.
With this function, the position at the power on is rough, but the following
functions are available before the reference position return.
- Stroke limit check
- Position switch
Please be careful this function does not make an incremental scale work as
an absolute position detector.
The temporary absolute coordinate setting is an optional function.
In using the absolute position detector by inductosyn of the axis, this
function is not available.
Also in using the linear-scale with distance-coded reference marks(serial),
these function are not available.
Also in using the switch between semi-closed and full-closed system of the
axis, this function is not available.
bsolute Serial
Pulse Coder
Incremental
Scale
General position control
Absolute position detection
at power on
Fig.1. The system with the Temporary Absolute Coordinate Setting
CNC