Omron SYSDRIVE 3G3RV Series User Manual

6
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22
nEntering S-curve Characteristics in the Acceleration and Deceleration Time
By performing acceleration and deceleration using an S-curve pattern, you can reduce shock when starting and
stopping the machine.
Using the Inverter, you can set an S-curve characteristic time for each of the following: Acceleration start
time, deceleration start time, acceleration end time, and deceleration end time.
Setting Example
The S-curve characteristic when switching operation (forward/reverse) is shown in the following diagram.
Fig 6.23 S-curve Characteristic during Operation Switching
K
KK
K Accelerating and Decelerating Heavy Loads (Dwell Function)
The dwell function stores the output frequency when starting or stopping heavy loads. By temporarily storing
the output frequency, the motor can be prevented from stalling.
The deceleration stop must be selected when using the dwell function. Set b1-03 (Stopping Method Selection)
to 0.
nRelated Parameters
INFO
Set the S-curve characteristic time to lengthen acceleration/deceleration time as follows:
Acceleration time = Selected acceleration time + (Acceleration start time S-curve characteristic time +
Acceleration end time S-curve characteristic time) / 2
Deceleration time = Selected deceleration time + (Deceleration start time S-curve characteristic time +
Deceleration end time S-curve characteristic time) / 2
Param-
eter
Num-
ber
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
V/f
with
PG
Open
Loop
Vec-
tor
LCD Display
b6-01
Dwell frequency at start
The dwell function is used to output a frequency
temporarily when driving a motor with a heavy
load.
0.0 to
400.0
0.0 Hz No A A A
Dwell Ref@Start
b6-02
Dwell time at start
0.0 to
10.0
0.0 sNoAAA
Dwell Time@Start
b6-03
Dwell frequency at stop
0.0 to
400.0
0.0 Hz No A A A
Dwell Ref@Stop
b6-04
Dwell time at stop
0.0 to
10.0
0.0 sNoAAA
Dwell Time@Stop
C2-02
C2-01
C2-03
C2-04
C2-02
C2-01
C2-03
C2-04
Forward
Reverse
Output frequency
ON
Run
command
Time
Output
frequency
OFF
b6-01 b6-03
b6-02 b6-04

Omron SYSDRIVE 3G3RV Series Specifications

General

Brand	Omron
Model	SYSDRIVE 3G3RV Series
Category	Inverter
Language	English