Installation manual
CNC 8055
CNC 8055i
MACHINE PARAMETERS
6.
SOFT: V02.2X
·237·
Axis parameters
DRISET (P91)
It defines from which set of the drive will the following drive parameters be read:
• NP 121: Input rpm.
• NP 122: Output rpm.
This parameter is used to apply a different gear ratio to each axis when having two axes that share
the same drive. This allows controlling two completely different axes with the same motor.
Axis parameter DRISET (P91) is only taken into account when two Sercos axes share the same
drive with switch parameters. Otherwise, it reads the data of set 0.
Special cases:
When the C axis of a lathe shares a drive with the spindle, if axis parameter DRISET (P91) = 0, it
reads the values of the drive's set 7. This is because set 0 is reserved to the spindle.
ACCTIMET (P92) PROGAINT (P93) DERGAINT (P94)
FFGAINT (P95)
These parameters define the third set of gains and accelerations. They must be set like the
parameters that define the first set.
To select the third set of gains and accelerations, set general parameter ACTGAINT (P185) correctly
or activate the CNC’s general logic input ACTGAINT (M5063).
DIFFCOMP (P96)
It indicates whether or not the position difference between master and slave will be corrected so
that difference is zero, once the two axes of a Gantry pair have been homed.
MAXDIFF (P97)
It indicates the maximum position difference, in mm, between master and slave, from where on to
compensate for the difference after homing the two axes of a Gantry pair.
This axis machine parameter is taken into account when it is about correct the coordinate difference.
PEAKDISP (P98)
Every time the axis movement is inverted, the CNC will apply to that axis the velocity command
corresponding to the movement plus an additional velocity command (to make up for backlash). This
Bit Meaning
0 - 7 Drive set from which drive parameters NP121 and NP 122 are read.
Default value: 0
First set Second set Third set
ACCTIME (P18) ACCTIME2 (P59) ACCTIMET (P92)
PROGAIN (P23) PROGAIN2 (P60) PROGAINT (P93)
DERGAIN (P24) DERGAIN2 (P61) DERGAINT (P94)
FFGAIN (P25) FFGAIN2 (P62) FFGAINT (P95)
Value Meaning
0 The position difference between the master and the slave is not corrected.
1 The position difference between the master and the slave is corrected.
Default value: 1
Value Meaning
0 There is no maximum limit from which the position difference is not
compensated.
0.0001 - 99999.9999 From this value on, the position difference is not compensated for.
Default value: 0
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