7 - 35
7 Advanced Settings
High-function General-purpose Inverter RX2 Series User’s Manual
7-2 Sele
ction
of Motor Co
ntro
l Meth
o
d
s
7
7-2
-14 F
ree V/f C
ontrol with Sensor
Parameter
Precautions for Correct Use
• 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.
Item
Parameter
Data
Description
Default
data
Control mode
selection,
1st-motor
[AA121]
06
To use V/f control with sensor (free V/f).
00
Slip Compensa-
tion P-gain witn
encoder, 1st-motor
[Hb170]
0 to 1000(%)
This is the P gain for the slip compensation of
control with sensor.
100
Slip Compensa-
tion I-gain witn
encoder, 1st-motor
[Hb171]
0 to 1000(%)
This is the I gain for the slip compensation of
control with sensor.
100
Phenomenon
Estimated cause(s)
Exemplar measures to be taken
The motor speed fol-
lows the command
slowly.
Response of the out-
put is slow and the
change in the fed-back
value is slow.
Increment the proportional (P) gain [Hb170].
The motor operates
unstably.
Response to the
fed-back value is too
quick.
Decrement the proportional (P) gain [Hb170].
Overshoot and/or
hunting occur.
The motor speed oscil-
lates gently.
Response to the inte-
gral operation is slow.
Increment the integral (I) gain [Hb171].
Stabilization of the
operation requires a
long time.
It takes time for the
command value and
the motor speed to be
equal to each other.
Response of the out-
put is slow and the
change in the fed-back
value is slow.
Decrement the integral (I) gain [Hb171].
Summary of Contents for RX - 2
Page 1: ...High function General purpose Inverter RX2 Series User s Manual I620 E1 01 3G3RX2...
Page 54: ...1 Overview 1 22 High function General purpose Inverter RX2 Series User s Manual...
Page 136: ...2 Design 2 82 High function General purpose Inverter RX2 Series User s Manual...
Page 592: ...8 Applied Settings 8 192 High function General purpose Inverter RX2 Series User s Manual...
Page 754: ...11 Options 11 56 High function General purpose Inverter RX2 Series User s Manual...
Page 794: ...12 Troubleshooting 12 40 High function General purpose Inverter RX2 Series User s Manual...
Page 919: ......
