Ramps Adjustment - Omron 3G3RX Quick Start Manual

RX Quick Start Guide

3.8 Ramps adjustment

The basic frequency (speed) profile is defined by parameters con-
tained in the "F" Group as shown to the right. The set running fre-
quency is in Hz, but acceleration and deceleration are specified in
the time duration of the ramp (from zero to maximum frequency,
or from maximum frequency to zero).
Acceleration 1 and Deceleration 1 are the standard default accel
and decel values for the main profile. Accel and decel values for an
alternative profile are specified by using parameters A092 through
A093.
Acceleration and deceleration can be set via Drive programming as
well via parameter P031
Parameter
A004
b082
F001
F002
F003
P031
Standard acceleration and deceleration is linear. The inverter CPU can
also calculate an S-curve acceleration or deceleration curve as shown.
These profiles are useful for favoring the load characteristics in partic-
ular applications, like for example the U-curve for deceleration of big
inertial load. Even if the shape of the ramps change the time keeps
being the same one set in F002/F003
Curve settings for acceleration and deceleration are independently
selected. To enable the S-curve, use function A097 (acceleration) and
A098 (deceleration).
Parameter
A097
A098
A131
A132
A150
A151
A152
A153
20
Parameter Name
Maximum frequency
Starting frequency
Output frequency setting/monitor
Acceleration time 1
Deceleration time 1
Acceleration/Deceleration time input
type
Parameter Name
Acceleration pattern selection
Deceleration pattern selection
Acceleration curve parameter
Deceleration curve parameter
EL-S-curve ratio 1 during acceleration
EL-S-curve ratio 2 during acceleration
EL-S-curve ratio 1 during deceleration
EL-S-curve ratio 2 during deceleration
Output
frequency
F002
A004
F001
b082
0
Actual decel. time
Actual accel. time
Description
A003 to 400
0.10 to 9.99 Hz
0.00 to 400.00 Hz
0.01 to 3600.00 s
0.01 to 3600.00 s
00: OPE (Digital operator)
01: Option 1
02: Option 2
03: EzSQ (Drive Programming)
Output
frequency Accel. curve selection
Target
S-curve
freq.
A097=01
0
Acceleration period
Description
00: Line
01: S-curve
02: U-curve
03: Inverse U-curve
04: EL-S curve
01 (small curve) to 10 (large curve)
01 (small curve) to 10 (large curve)
0 to 50%
0 to 50%
0 to 50%
0 to 50%
F003
t
Linear
A097=00
t
RX Quick Start Guide