Rockwell Automation 8520-ARM2 9/Series CNC AMP Reference Manual Documentation Set - Manual (Page 646)

Miscellaneous Parameters
Chapter 37
37-6
Time -- When this parameter is selected as “Time,” a dwell is always
programmed in units of seconds regardless of the G94 or G95 mode.
Axis Parameter
Number
All [400]
Range
Selection Result
(a) Time only
(b) Time & spn revs
Notes
This is a global parameter; the value set here applies to all axes
and processes.
This parameter does not effect dwells that are executed in fixed cycles
which can be either in units of seconds or spindle revolutions.