Siemens S7-1200 System Manual page 477

Parameter and type
EmergencyRampTime
ChangeJerkTime
JerkTime
Done
Error
ErrorID
ErrorInfo
Prerequisites for MC_ ChangeDynamic execution:
● The technology object TO_Axis_PTO V2.0 must be correctly configured.
● The axis must be released.
Override response
An MC_ChangeDynamic command cannot be aborted by any other Motion Control
command.
A new MC_ChangeDynamic command does not abort any active Motion Control jobs.
Note
The input parameters "RampUpTime", "RampDownTime", "EmergencyRampTime" and
"RoundingOffTime" can be specified with values that makes the resultant axis parameters
"acceleration", "delay", "emergency stop-delay" and "jerk" outside the permissible limits.
Make sure you keep the MC_ChangeDynamic parameters within the limits of the dynamic
configuration settings for the axis technology object.
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
Data type
IN Real
IN Bool
IN Real
OUT Bool
OUT Bool
OUT Word
IN Word
Description
Time (in seconds) to decelerate the axis from configured
maximum velocity to standstill without jerk limiter in emergency
stop mode. Default value: 2.00
The change will influence the tag <Axis name>.
Config.DynamicDefaults.EmergencyDeceleration. The
effectiveness of the change is shown in the description of this
tag.
TRUE = Change smoothing time according to the input
parameter "JerkTime". Default value: FALSE
Smoothing time (in seconds) used for the axis acceleration and
deceleration ramps. Default value: 0.25
The change will influence the tag <Axis name>.
Config.DynamicDefaults.Jerk. The effectiveness of the change is
shown in the description of this tag.
TRUE = The changed values have been written to the
technology data block. The description of the tags will show
when the change becomes effective. Default value: FALSE
TRUE = An error occurred during execution of the command.
The cause of the error can be found in parameters "ErrorID" and
"ErrorInfo". Default value: FALSE
Error identifier. Default value: 16#0000
Error information. Default value: 16#0000
Technology instructions
9.3 Motion control
477