Acceleration/Deceleration Method - Mitsubishi Electric MELSEC iQ-R Series User Manual

Acceleration/deceleration method

Acceleration/deceleration specification method
When "0: mcAccDec" is selected in the "acceleration/deceleration method setting" (Options bit 0 to 2) of the FB, the
acceleration, the deceleration, and the jerk can be set.
■Trapezoidal acceleration/deceleration
Speed
Target speed (V)
Acceleration
Target acceleration (A)
Target deceleration (Dec)
: Operation possible, : Operation impossible
Section Process description
A Acceleration section Accelerates at the target acceleration.
B Fixed speed section Controls at the target velocity. (Acceleration = 0.0)
C Deceleration Decelerates at the target deceleration.
section
• Acceleration/deceleration time parameter calculation
: Operation possible, : Operation impossible
Type Item
Specified value Target velocity
Target acceleration
Target deceleration
Calculated Acceleration section time
value
Deceleration section time
*1 This is the calculation formula when unit of V is [U/s]. When other than [U/s], calculate by converting into [U/s].
Section A Section B
Jerk
Acceleration time (AT) Deceleration time (DT)
Abbr Description
eviat
ion

V

A
Dec 
AT Time from the speed 0.0 to the target
velocity
DT Time to decelerate from the target velocity
to the speed 0.0
Time
Section C
Time
Time
Calculation formula



*1
V  A
*1
V  Dec
9 RELEVANT FUNCTIONS TO VELOCITY
9.1 Acceleration/deceleration Processing Function
9
Operation
Accelera Decelera
tion tion
 
 
 
Operation
Accelera Decelera
tion tion
 
 
 
 
 
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