Omron RX2 Series User Manual page 326

7 Advanced Settings
 Parameter
Item
Control mode
selection,
1st-motor
Speed response
for Async.M,
1st-motor
Zero speed area
limit for
Async.M-0SLV,
1st-motor
Boost value at start
for Async.M-0SLV,
1st-motor
Secondary resis-
tance correction,
1st-motor
Counter direction
run protection
selection,
1st-motor
Torque current ref-
erence filter time
constant, 1st-motor
Speed feedfor-
ward compensa-
tion gain, 1st-motor
*1. Cannot be selected if [Ub-03] duty spec selection is 01 (LD) or 00 (VLD).
In addition to the adjustment of the sensorless vector control, refer to the following description.
Phenomenon
Socks occur during the
revolutions at the start. Boost amount is too
Over current occurs at
the start
The motor cannot pro-
vide enough torque for
the load is too high for
the motor to at the
start.
Acceleration is not
possible.
Precautions for Correct Use
• Set the carrier speed setting, 1st-motor [bb101] at a value of 2.0 kHz or higher. A set fre-
quency of 1.9 kHz or lower may cause hunting.
• When the revolution of the motor is hindered by such causes as the braking or the motor lock
caused by foreign objects, such hindrance may cause over current or the like. When no such
adjustment as ones mentioned above improves the state, checking the portion around the
motor may sometimes improves it.
• If an application of load results in a great amount of change in the inverter's output frequency
monitor [dA-01], a function to automatically change the frequencies for the overload limiting
function, the momentary-stop non-stop function, the over voltage suppression function may
work depending upon the settings of the functions.
7 - 18
Parameter Data
*1
[AA121]
09
[HA115] 0 to 1000(%)
[HC110] 0 to 100(%)
[HC112] 0 to 50(%)
00
[HC113]
01
00
[HC114]
01
[HC120] 0 to 100(ms)
[HC121] 0 to 1000(%)
Estimated cause(s)
• Make an adjustment by decrementing the zero-speed range
large.
• Make an adjustment by decrementing the zero-speed range
Boost amount is too Make an adjustment by incrementing the zero-speed range
small. boost at the start [HC112] by 5% each time.
High-function General-purpose Inverter RX2 Series User's Manual
Description
To use the zero-speed range sensorless vector
control (IM) function.
To adjust the responsiveness of the control.
A larger value enhances the responsiveness.
To limit the current at the start so as not to allow
the rising of the current to rise too high.
To adjust the current command at the start when
the starting torque is not sufficient.
Disabled
Enabled Requiring a temperature thermistor.
Disabled
Enabled Limit the output to prevent the output in
the reverse direction.
To adjust the filter for the torque current.
To adjust the feed forward control of the speed
controller.
Exemplar measures to be taken
limiter [HC110] by 5% each time.
boost at the start [HC112] by 5% each time.
Default
data
00
100
80
10
00
00
2
0