Omron 3G3MX2 - Ramps Adjustment

MX2 Quick Start Guide
20 MX2 Quick Start Guide
3.7 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
 through
.
Acceleration and deceleration can be set via Drive programming as
well via parameter P031
Standard acceleration and deceleration is linear. The inverter CPU can
also calculate an S-curve acceleration or deceleration curve as shown.
This profile is useful for favoring the load characteristics in particular
applications. 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 indepenently
selected. To enable the S-curve, use function A097 (acceleration) and
A098 (deceleration).
This table shows the different acceleration shapes
Parameter Parameter Name Description
A004 Maximum frequency 30.0 to 400.0Hz
b082 Start frequency 0.01 to 9.99Hz
F001 Output frequency setting 0.00 to 400.00Hz
F002 Acceleration time(1) 0.01 to 3600.00s
F003 Deceleration time(1) 0.01 to 3600.00s
P031
Accel/Decel setting
source selection
00: Via operator
01: Via Drive Programming
Parameter Parameter Name Description
A097
Acceleration curve selection 00: Linear curve
01: S-curve
02: U-curve
03: Inverse U-curve
04: EL-S curve
A098
Deceleration curve selection
A131 Acceleration curve constant Range is 01 to 10.
A132 Deceleration curve constant Range is 01 to 10.
A150 Curvature of EL-S-curve at
the start of acceleration
Range is 0 to 50%
A151 Curvature of EL-S-curve at
the end of acceleration
Range is 0 to 50%
A152 Curvature of EL-S-curve at
the start of deceleration
Range is 0 to 50%
A153 Curvature of EL-S-curve at
the end of deceleration
Range is 0 to 50%
Setting 00 01 02 03 04
Curve Linear S-curve U-curve Inverse U-curve EL S-curve
A097
(Accel. pattern)
A098
(Decel. pattern)
0
t
A004
F002 F003
F001
Actual accel. time
b082
Actual decel. time
Output
frequency
A097 = 00
Accel. curve selection
S-curve
Linear
t
0
A097 = 01
Acceleration period
Target
freq.
Output
frequency
t
Freq.
t
Freq.
t
Freq.
t
Freq.
t
Freq.
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