Yaskawa FSP Amplifier FlexWorks - Manual (Page 254)

Glossary of Terms and Concepts
254
12.2. Motion Profile
In an FSP Amplifier program, motion commands are used to specify
the required motor motion.
A motor motion is characterized by the rate at which it accelerates,
the ultimate speed reached, and the rate at which acceleration
changes should the ultimate speed be changed.
When using motion commands, these parameters may be specified.
Alternatively, the FSP Amplifier will use the default motion profile
parameters, which you can set.
The profile parameters are:
♦ Profile Velocity
♦ Profile Acceleration
♦ Jerk Smoothing Time
12.2.1. Profile Velocity
The profile velocity is the default speed to which the motor
accelerates if the desired duration of the motion is not specified.
The motor will accelerate until it reaches the profile velocity.
The profile velocity is recorded in the system variable
Profile_Velocity.
By default, Profile_velocity is set equal to the Work Speed Default,
specified by parameters Pn2A2 and Pn2A3:
♦ Pn2A2: The profile speed in user speed units, in the low bits
format.
♦ Pn2A3: The profile speed in user speed units, in the high bits
format.
Pn2A2 is used to store the work speed default if its value is less
than 65536. Values over 65536 must be converted to high bits
format, and stored in Pn2A3, which can hold values up to 256.
The value of Profile_velocity can be changed using the SPEED
command. To set Profile_velocity equal to a variable, use the
SET_VAR command.