
B-64120EN/01 4.DESCRIPTION OF PARAMETERS
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1428 Reference position return feedrate
[Data type] 2-word axis
[Unit of data, valid data range]
Valid data range
Increment system Unit of data
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 30 to 240000 6 to 100000
Inch machine 0.1 inch/min 30 to 96000 6 to 48000
Rotation axis 1 deg/min 30 to 240000 6 to 100000
This parameter sets a rapid traverse rate for reference position return
operation using deceleration dogs, or for reference position return
operation before a reference position is set.
This parameter is also used to set a feedrate for the rapid traverse
command (G00) in automatic operation before a reference position is
set.
NOTE
1 This parameter is invalid for an axis using the scale
with absolute addressing reference marks.
2 When 0 is set in this parameter, this parameter
disables the reference position return feedrate
setting function.
Before a reference position is set After a reference position is set
No. 1428 No. 1428
=0 ≠0 =0 ≠0
Reference position return by G28
Raped traverse command (G00) in
automatic operation
No.1420 No.1420
Without dogs
(*1)
No.1420 or No.1424
(*3)
Manual reference
position return
With dogs
(*1)
No.1424
No.1428
No.1424 No.1428
Manual raped traverse No.1423 or No.1424
(*2)
No.1424
*1 With/without dogs: Reference position return operation not
using/using deceleration dogs
*2 For manual rapid traverse before a reference position is set, a jog
feedrate (parameter No.1423) or manual raped traverse rate
(parameter No.1424) is used according to the setting of bit 0
(RPD) of parameter No.1401.
*3 The rapid traverse rate set in parameter No.1424 or No.1420 is
used according to the setting of bit 1 (DLF) of parameter
No.1404 when reference position return is performed without
dogs, or when reference position return operation is performed
with bit 7 (SJZ) of parameter No.0002 set to 1 after a reference
position is set (when reference position return operation is
performed using rapid traverse without deceleration dogs).