Yaskawa MP2000 Series: Built-in SVB or SVB-01 Motion Module - Manual (Page 217)

6.2 Motion Command Details
6.2.10 Change Deceleration Time (DCC)
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6.2.10 Change Deceleration Time (DCC)
The DCC command transfers the setting of the Straight Line Deceleration Time Constant (motion setting parameter
OL
38) to the Second-step Linear Deceleration Time Constant in the SERVOPACK and enables the setting.
For the SGD- N and SGDB- N SERVOPACKs, this command cannot be used because these SERVO-
PACKs does not have the parameters for setting the deceleration time constant.
MECHATROLINK-II has a function that automatically updates setting parameters if a parameter changes. There is
no need to execute the DCC command with this function. For details, refer to bit A (User Constants Self-writing
Function) in the 4.4.1 ( 2 ) Function Selection 1.
( 1 ) Executing/Operating Procedure
1.
Check to see if all the following conditions are satisfied.
2.
Set OW 08 to 11 to execute the DCC motion command.
The DCC command will transfer the setting of the Straight Line Deceleration Time Constant (motion setting
parameter OL
38) to the Second-step Linear Deceleration Time Constant in the SERVOPACK and enables
the setting.
IW
08 will be 11 during command execution.
IW 09, bit 0 will turn ON during the command processing and will turn OFF when the processing 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 Holds a Command bit (OW 09, bit 0) and the Interrupt a Command bit (OW 09, bit 1) 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. IW 0C, bit 0 is ON.
3 Motion command execution has been completed. IW 08 is 0 and IW 09, bit 0 is OFF.
Parameter Name Setting
OW 03 Function Setting 1 Set the speed unit, acceleration/deceleration units, and filter type.
OW 08 Motion Command The linear deceleration time constant is changed when this parameter is set to 11.
OW 09
Bit 0
Holds a Command This parameter is ignored for DCC command.
OW 09
Bit 1
Interrupt a Command This parameter is ignored for DCC command.
OL 38
Straight Line Deceleration/
Deceleration Time Con-
stant
Set the linear deceleration rate or deceleration time constant. The setting unit is
specified by OW
03.