
6.PARAMETERS B-64004EN/02
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4372 Safe speed 1 for each spindle
4438 Safe speed 2 for each spindle
4440 Safe speed 3 for each spindle
4442 Safe speed 4 for each spindle
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] Word spindle
[Unit of data] min
-1
[Valid data range] 0 to 32767
Set a safe speed for each spindle in terms of motor speed. In case Dual
Check Safety function is activated, CNC and Spindle always check
the speed of each spindle motor. When it is detected that revolution
speed of spindle exceeds safety speed limit, Monitoring Result signal
(RSPs) is set to “0”. Moreover if the safety check is carried out
(Safety Check Request signal *VLDPs =”0”), an alarm SP0757(CNC
side) or SP9069(Spindle side) occurs.
Safety Speed can be set up to 4 data. Which speed should be selected
is decided by Safety Speed Selection signal (SPAs/SPBs). Please refer
more detail to the description about Safety Speed/Safety Position
Selection signal.
CAUTION
After Safety Speed parameters No.4372, No.4438,
No.4440 or No.4442 has been modified, the power
must be turned off then back on for the setting to
become effective.
4448 Stop check level
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] Word spindle
[Unit of data] min
-1
[Valid data range] 0 to 32767
When a spindle motor is in free-run state because of excess of safety
speed, a motor is regarded as stop state if the speed of a spindle motor
becomes lower than the value set by this parameter. In this condition,
an alarm can be reset. The setting value must be lower than the
parameter “Safe Speed for each spindle”.