4. DESCRIPTION OF PARAMETERS
B–63010EN/02
278
5280
Position control loop gain for the spindle and tapping axis in rigid tapping
(common to all gears)
5281
Position control loop gain for the spindle and tapping axis in rigid tapping
(first–stage gear)
5282
Position control loop gain for the spindle and tapping axis in rigid tapping
(second–stage gear)
5283
Position control loop gain for the spindle and tapping axis in rigid tapping
(third–stage gear)
5284
Position control loop gain for the spindle and tapping axis in rigid tapping
(fourth–stage gear)
NOTE
Once these parameters have been set, the power must be
turned off then back on for the settings to become effective.
[Data type] Word
[Unit of data] 0.01 s
–1
[Valid data range] 1 to 9999
Each of these parameters is used to set a position control loop gain for the
spindle and tapping axis in rigid tapping. These parameters significantly
affect the precision of threading. Optimize these parameters as well as the
loop gain multipliers by conducting a cutting test.
NOTE
1 To use a varied loop gain on a gear–by–gear basis, set
parameter No.5280 to 0, and set a loop gain for each gear
in parameters No.5281 through No.5284. The specification
of a loop gain on a gear–by–gear basis is disabled if
parameter No.5280 is set to a value other than 0. In such a
case, the value set in parameter No.5280 is used as a loop
gain that is common to all the gears.
2 When rigid tapping is performed using the second and third
spindles
• When the SPR parameter (bit 1 of parameter No.5204)
is set to 0, the setting of parameter No.5280 or the
settings of parameters No.5281 and No.5282 are applied
to the second and third spindles, as well as to the first
spindle.
• When the SPR parameter (bit 1 of parameter No.5204)
is set to 1, the settings of parameters No.5341 through
No.5343 are applied to the second spindle, while the
settings of parameters No.5344 through No.5346 are
applied to the third spindle.