Mitsubishi Electric M800VW Series Programming Manual page 849

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.34 PLC Axis Indexing
Set the following signal in addition to the general automatic mode setting before the operation start.
Abbreviation Signal name
Arbitrary coordinate designation en-
STS
abled
When rotation axis is used and "#12802 aux_Cont1/bitE" is set to "1", the rotation will be in the arbitrary coordinate command
sign direction. The sign of designation represents the rotation direction. Positioning will be carried out based on the absolute
value.
When the rotation is more than 360 degrees, the commanded angle is divided by 360 degrees: the quotient will be the number
of the rotation and the remainder will be the actual position.
CW ( #1018 cc w = 0)
(i) Designated value - 90 °
Position
Rotation direction
( - )
0°
CCW ( #1018 ccw = 1 )
(i) Designated value - 90 °
Position
Rotation direction
( + )
0°
Axis position
at start
signal ON
90°
POINT
(1) When the Operation start signal(ST) is tuned OFF during arbitrary coordinate designation, the axis will immedi-
ately decelerate to a stop.
(2) In arbitrary coordinate designation, the signals of Automatic set position reached (JSTA), Set position reached
(JST), and Near set position (NEAR) will be output in respect to the commanded positioning destination.
(3) Keep the Arbitrary coordinate designation enabled signal(STS) ON until the positioning is completed. Although
the positioning will be continued after the STS signal is turned OFF, the signals related to the set position (in-
cluding JSTA, JST, NEAR) will be output with the usual station method.
(4) When the rotation direction is in the arbitrary coordinate designation sign direction, setting ±360°will bring the
same action as that with 0°designated.
IB-1501668-B
The positioning destination input from the PLC will be enabled.
Keep this signal ON during arbitrary coordinate designation operation.
(ii) Designated value +
(+)
( - )
Axis position
0°
at start
signal ON
90°
(ii) Designated value +
( - )
(+)
0°
90°
828
Explanations
(iii) Designated value - 450
°
90 °
Rotation direction
( + )
( + )
( - )
0°
90°
(iii) Designated value - 450 °
90 °
Rotation direction
( - ) ( - )
(+)
0°
90°
Remainder 90°
450° / 360° = 1
Position
Number of rotation
90°
90°
450° / 360° =1 Remainder
Position
Number of rotation