
B–63510EN/01
4. DESCRIPTION OF PARAMETERS
39
1427 External deceleration rate of rapid traverse for each axis
[Data type] Word axis
[Unit of data]
[Valid data range]
Valid data range
ncremen
sys
em
n
o
a
a
IS-B IS-C
Millimeter machine 1 mm/min 6 to 15000 6 to 12000
Inch machine 0.1 inch/min 6 to 6000 6 to 4800
Rotaion axis 1 deg/min 6 to 15000 6 to 12000
Set the external deceleration rate of rapid traverse for each axis.
1428
Reference position return feedrate
[Data type] 2–word axis
[Unit of data]
[Valid data range]
Valid data range
ncremen
sys
em
n
o
a
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
Rotaion 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
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 0 0
Reference position return by G28
Raped traverse command (G00) in
automatic operation
No.1420
No.1428
No.1420
Manual reference
Without dogs
*1
No.1428
No.1420 or No.1424
*3
Manual reference
position return
With dogs
*1
No.1424
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 raped 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 perfomed without dogs, or when reference position return
operation is performed with bit 7 (SJZ) of parameter No.0002 set to 1 after a