
4.REFERENCE POSITION ESTABLISHMENT B-63323EN-1/03
- 464 -
Parameter
5228 Distance 2 from the zero point of the distance coded linear scale to reference
position
%
0"
@ ""% #GGGGGG
This parameter is used when the distance from the zero point of the distance coded
linear scale to the reference position exceeds the range set in parameter No. 5227.
The distance from the scale zero point to reference position is obtained from the
following expression:
Distance from the scale zero point to reference position =
(value in parameter No. 5228) × 1,000,000,000 + (value in parameter No. 5227)
The scale zero point is the point at which mark 1 and mark 2 match. Normally,
this point is a virtual point that does not physically exist on the scale.
NOTE
1 Set parameter Nos. 5227 and 5228 so that the distance from the
scale zero point to the reference position is within the range from
-999,999,999,999 to +999,999,999,999 If a value exceeding
the range is set, the alarm OT0448 occur.
2 The scale body can not cross the scale zero point¥. The scale
range must be within the range from scale zero point to next
scale zero point.
If the reference position is on the positive side when viewed from the scale zero
point, a positive value is set in this parameter. If the reference position is on the
negative side when viewed from the scale zero point, a negative value is set. For
details, refer to "Distance coded linear scale" in the connection manual (function).
Scale body
Scale zero point
Mark 1 = mark 2
Mark 2Mark 1 Mark 2Mark 1
Reference position
Scale end
8.0
8.2 41.8
Parameter No. 1896
Parameter No. 5226
Parameter No. 5228×1,000,000,000+parameter No. 5227