Omron SYSDRIVE 3G3RV Series User Manual

A
djustment Suggestions
4
-
1
9
*The setting is given for 200 V Class Inverters. Double the voltage for 400 V Class Inverters.
• Do not change the Torque Compensation Gain (C4-01) from its default setting of 1.00 when using open-
loop vector control.
• If speeds are inaccurate during regeneration in open-loop vector control, enable Slip Compensation During
Regeneration (C3-04 = 1).
• Use slip compensation to improve speed control during V/f control (A1-02 = 0).
Set the Motor Rated Current (E2-01), Motor Rated Slip (E2-02), and Motor No-load Current (E2-03), and
then adjust the Slip Compensation Gain (C3-01) to between 0.5 and 1.5. The default setting for V/f control
is C3-01 = 0.0 (slip compensation disabled).
• To improve speed response and stability in V/f control with a PG (A1-02 = 1), set the ASR parameters
(C5-01 to C5-05) to between 0.5 and 1.5 times the default. (It is not normally necessary to adjust this set-
ting.) ASR for V/f control with a PG will only control the output frequency; a high gain, such as is possible
for open-loop vector control, cannot be set.
The following parameters will also indirectly affect the control system.
Open-loop
vector con-
trol (A1-02
= 2)
Carrier frequency
selection (C6-02)
• Reducing motor
magnetic noise
• Controlling hunting
and vibration at low
speeds (10 Hz or
less)
Depends
on capac-
ity
0 to
default
•Increase the setting if
motor magnetic noise is
high.
• Reduce the setting if hunt-
ing or vibration occurs at
low speeds.
Middle output fre-
quency voltage
(E1-08)
Minimum output fre-
quency voltage
(E1-10)
•Improving torque at
low speeds
• Controlling shock at
startup
Depends
on capac-
ity and
voltage
Default to
Default + 3
to 5 V
*
•Increase the setting if
torque or speed response is
slow.
• Reduce the setting if shock
at startup is large.
Table 4.7 Parameters Indirectly Affecting Control and Applications
Name (Parameter Number) Application
CT/VT selection (C6-01) Sets the maximum torque and overload capability to 120% or 150%.
DWELL function (b6-01 to b6-04) Used for heavy loads or large machine backlashes.
Acceleration/deceleration times
(C1-01 to C1-11)
Adjust torque during acceleration and deceleration.
S-curve characteristics (C2-01 to C2-04) Used to prevent shock when completing acceleration.
Jump frequencies (d3-01 to d3-04) Used to avoid resonance points during operation.
Analog input filter time constant (H3-12) Used to prevent fluctuations in analog input signals caused by noise.
Stall prevention (L3-01 to L3-06)
Used to prevent 0 V (overvoltage errors) and motor stalling for heavy
loads or rapid acceleration/deceleration. Stall prevention is enabled by
default and the setting does not normally need to be changed. When using
a Braking Resistor, however, disable stall prevention during deceleration
by setting L3-04 to 0.
Torque limits (L7-01 to L7-04)
Set the maximum torque during vector control. If a setting is increased,
use a motor with higher capacity than the Inverter. If a setting is reduced,
stalling can occur under heavy loads.
Table 4.6 Adjusted Parameters (Continued)
Control
Method
Name (Parameter
Number)
Performance
Factory
Setting
Recom-
mended
Setting
Adjustment Method

Omron SYSDRIVE 3G3RV Series Specifications

General

Brand	Omron
Model	SYSDRIVE 3G3RV Series
Category	Inverter
Language	English