Automatic Optimum Acceleration/Deceleration - Omron RX Series User Manual

EL-S-shape Curve Ratio
With the EL-S-shape pattern, you can set the EL-S Shape Acceleration/Deceleration Curve Ratio
parameters (A151 to A153) independently.
Setting all of these parameters to 50 [%] is equivalent to selecting the S-shape pattern.
Output frequency ratio [%]
100
Acceleration
Curve Ratio 2
(A151)
50
5-6-3

Automatic Optimum Acceleration/Deceleration

• The automatic acceleration/deceleration function eliminates the need for acceleration/deceleration
settings for inverter operation.
• To use this function, set the Operation Mode Selection (A085) to 02 (Automatic operation).
• Although, conventionally, the user had to set an inverter acceleration/deceleration time depending on
the load conditions etc., this function can automatically adjust the acceleration/deceleration time to
make full use of the inverter's capacity.
• The acceleration time is the time during which the motor accelerates at the current value within the
setting in the Overload Limit Level (b022) if the overload limit function is enabled, or at approximately
150% or less of the rated current of the inverter if the overload limit function is disabled, respectively.
The deceleration time is the time during which the motor decelerates at a current value of
approximately 150% or less, or at a DC current of approximately 370 V or less (for 200-V class) or at
approximately 740 V or less (for 400-V class) in the inverter.
Thus, the function automatically sets the acceleration/deceleration time by responding in real time to
changes in the load and inertia.
Parameter
No.
Operation Mode
A085
Selection
Related functions
High-function General-purpose Inverter 3G3RX-V1 User's Manual (I578-E1)
Acceleration
Curve Ratio 1
(A150)
Function name
Heavy
load
(CT)
Light
load
(VT)
A044, A244, A344, b021, b024, b022, b025
Deceleration
Curve Ratio 1
(A152)
Deceleration
Curve Ratio 2
(A153)
Time [s]
Data
00: Normal operation
01: Energy-saving operation
02: Automatic operation
00: Normal operation
01: Energy-saving operation
5 Basic Settings
Default
Unit
data
00 –
5 - 39
5