Yaskawa G5 Spindle Orientation - Manual (Page 13)

Spindle Orientation
Date: 07/01/04, Rev: 04-07 Page 13 of 14 TM.G5SW.021
New Monitors
Marker Offset
U1-50 = 2303 cts
U1-50 Marker Offset Q Q Q Q
Displays the number of quadrature encoder counts the shaft is past the marker pulse. This is a rolling pulse counter with
a range from 0 to the quadrature PPR rating of the position encoder. (Quad PPR = P1-02: Pos. Encoder PPR x 4) The
drive must be orientated after energizing to identify the marker pulse position. This monitor will display the offset count
from the last marker pulse. A 1024 PPR encoder has a quadrature count of 1024 X 4 or 4096. Using this encoder this
value will increment from 0 to 4095 in the forward direction. It will decrement from 4095 to 0 in the reverse direction.
The 0 indicates the marker position.
Shaft Angle
U1-51 = 0.0
U1-51 Shaft Angle Q Q Q Q
Displays the angle between the position encoder and the home position. The display will indicate 0 to 179.9 degrees
then change to –180.0 to 0 degrees when rotated in the clockwise direction. Counter clockwise rotation will result in 0
to –180.0 then it will change to 179.9 and count down to 0.
Shaft Angle Deg
U1-52 = 0.0
U1-52 Shaft Angle Degrees Q Q Q Q
Displays the angle between the position encoder and the home position. The display will indicate 0 to 359.9 degrees
when the position encoder is rotated clockwise.
Seq Offset
U1-57 = 0
U1-57 Sequence Offset Q Q Q Q
Displays the last read offset value pointed to by the sequence step. The value is read when the orient input is energized.
The sequence offset is used as the offset to the home position. The readable values are set in the P2-01 to P3-05
parameters. When the sequence step is 0 the P1-03: Marker Offset will be read. The actual value of the sequence offset
is controlled by P3-06: Count or Degree. (Quadrature PPR counts or 360 degrees = 1 revolution)
Display Range: 0 to 32767 cts
MODBUS Address: 0x00d0
Display Range: -180.0 to 179.9
MODBUS Address: 0x00d1
Display Range: 0.0 to 359.9
MODBUS Address: 0x00d2
Display Range: 0 to 32767
MODBUS Address: 0x00d7