4.DESCRIPTION OF PARAMETERS B-64120EN/01
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3625
Travel distance per revolution in pitch error compensation of rotation axis
type
NOTE
When this parameter has been set, the power must
be turned off before operation is continued.
[Data type] 2-word axis
[Valid data range] 0 to 99999999
If the pitch error compensation of rotation axis type is performed (bit
1 (ROSx) of parameter No. 1006 is set to 0 and bit 0 (ROTx) of
parameter No. 1006 is set to 1), set the travel distance per revolution.
The travel distance per revolution does not have to be 360 degrees,
and a cycle of pitch error compensation of rotation axis type can be
set.
However, the travel distance per revolution, compensation interval,
and number of compensation points must satisfy the following
condition:
(Travel distance per revolution) = (Compensation interval) × (Number
of compensation points)
The compensation at each compensation point must be set so
that the total compensation per revolution equals 0.
NOTE
1 If 0 is set, the travel distance per revolution
becomes 360 degrees.
2 When setting a value other than 360 (and 0)
degrees, set the same value as the value set in
parameter No. 1260.
3626
Number of pitch error compensation point at the farthest end in the negative
direction (for movement in the negative direction)
NOTE
When this parameter has been set, the power must
be turned off before operation is continued.
[Data type] Word axis
[Unit of data] Number
[Valid data range] 0 to 1023, 3000 to 4023
When using both-direction pitch error compensation, set the number
of pitch error compensation point at the farthest end in the negative
direction for a movement in the negative direction.
NOTE
1 For a movement in the positive direction, set the
compensation point number at the farthest end in
the negative direction in parameter No. 3621.
2 A set of compensation data items for a single axis
should not be set to lie astride 1023 and 3000.