
B-64004EN/02-01
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FANUC Series 30i/31i32i -A, 31i-A5
About the setting of the velocity parameter
when a diameter is specified
Replace the following description of the parameter No.13821-13824, 13825.
13821 Safety limit speed 1 in position control for each axis
13822 Safety limit speed 2 in position control for each axis
13823 Safety limit speed 3 in position control for each axis
13824 Safety limit speed 4 in position control for each axis
NOTE
When this parameter is set, the power must be turned off before
operation is continued.
[Input type] Parameter input
[Data type] Real axis
[Unit of data] mm/min, inch/min, degree/min (machine unit)
[Minimum unit of data] Depend on the increment system of the applied axis
[Valid data range] Refer to the standard parameter setting table (C)
(When the increment system is IS-B, 0.0 to +240000.0)
Set a safety speed for each axis in position control.
CNC and Servo always check the velocity command of each axis in Dual Check Safety
function. If the speed is exceeded the safety limit even on one axis, Monitoring Result
signal (RSVx) corresponding to that axis is set to “0”. Moreover if Safety Check request
signal (*VLDVx) is set to “0”, an alarm SV0476 or SV0494 is generated for the
corresponding axis.
A safety speed parameter for each axis in feed control is from No.13826 to No.13829.
Up to 4 safety speed can be specified. Safety speed is selected by Safety Speed / Safety
Position Selection signal (SVAx/SVBx). As for the detail of Safety Speed / Safety Position
Selection signal, refer to the description about Safety Speed / Safety Position Selection
signal.