7
Motion Commands
7.2.11
Change Filter Time Constant (SCC)
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7.2.11 Change Filter Time Constant (SCC)
The SCC command transfers the setting of the S-Curve Acceleration Time (motion setting parameter
OW
3A) to the Moving Average Time in the SERVOPACK and enables the setting.
Always execute the CHG_FILTER command before executing the SCC command.
MECHATROLINK-II has a function that automatically updates setting parameters if a parameter
changes. There is no need to execute the SCC command with this function. For details, refer to bit
A (User Constants Self-Writing Function) in 6.4.1 ( 2 ) Function Selection 1 on page 6-18.
( 1 ) Executing/Operating Procedure
1.
Check to see if all the following conditions are satisfied.
2.
Set OW
08 to 12 to execute the SCC motion command.
The SCC command will transfer the setting of the S-Curve Acceleration Time (motion setting
parameter OW
3A) to the Moving Average Time in the SERVOPACK and enables the set-
ting.
IW
08 will be 12 during command execution.
IB
090 will turn ON during the command processing and will turn OFF when the process-
ing has been completed.
3.
Set OW
08 to 0 to execute the NOP motion command and then complete the
change of the linear deceleration time constant.
( 2 ) Holding and Aborting
The Command Pause bit (OB
090) and the Command Abort bit (OB
091) cannot be used.
( 3 ) Related Parameters
[ a ] Setting Parameters
No. Execution Conditions Confirmation Method
1 There are no alarms.
Both IL
02 and IL
04 are 0.
2 Pulse distribution has been completed for the SERVOPACK.
IB
0C0 is ON.
3 Motion command execution has been completed.
IW
08 is 0 and IB
090 is OFF.
Parameter Name Setting
OW
03
Function 1
Set the speed unit, acceleration/deceleration unit, and filter type.
OW
08
Motion Command
The filter time constant is changed when this parameter is set to 12.
OB
090
Command Pause
This parameter is ignored for SCC command.
OB
091
Command Abort
This parameter is ignored for SCC command.
OW
3A
S-Curve Acceleration Time
Set the filter time constant for acceleration/deceleration.