136
Regen
eration avoida
nce fu
nction
882
Regeneration
avoidance
operation selection
1
0
0
Regeneration avoidance function invalid
{
{
{
1
Regeneration avoidance function is always
valid
2
Regeneration avoidance function is valid
only at constant speed
883
Regeneration
avoidance operation
level
0.1V
380/
300 to 800V
Set the bus voltage level at which
regeneration avoidance operates. When
the bus voltage level is set to low,
overvoltage error will be less apt to occur.
However, the actual deceleration time
increases.
The set value must be higher than the
power supply voltage
×
* The initial value differs according to the
voltage level. (200V class / 400V class)
{
{
{
884
Regeneration
avoidance at
deceleration
detection sensitivity
1
0
0
Regeneration avoidance by bus voltage
change ratio is invalid
{
{
{
1 to 5
Set sensitivity to detect the bus voltage
change.
Setting:
1
→
5
Detection sensitivity: Low
→
High
885
Regeneration
avoidance
compensation
frequency limit value
0.01Hz
6Hz
0 to 10Hz
Set the limit value of frequency which rises
at activation of regeneration avoidance
function.
{
{
{
9999
Frequency limit invalid
886
Regeneration
avoidance voltage
gain
0.1%
100%
0 to 200%
Adjust responsiveness at activation of
regeneration avoidance. Setting a larger
value in
Pr.886
will improve responsiveness
to the bus voltage change. However, the
output frequency could become unstable.
When vibration is not suppressed by
decreasing the
Pr.886
setting, set a smaller
value in
Pr.665
.
{
{
{
665
Regeneration
avoidance
frequency gain
0.1%
100%
0 to 200%
{
{
{
F
ree
pa
ra
m
et
er
888
Free parameter 1
1
9999
0 to 9999
Parameters you can use for your own
purposes.
Used for maintenance, management, etc.
by setting a unique number to each
inverter when multiple inverters are used.
Data is held even if the inverter power is
turned off.
{
×
×
889
Free parameter 2
1
9999
0 to 9999
{
×
×
—
891
Refer to
Pr. 52
.
Fu
nc
tio
n
Parameter
Name
Incre
ments
Initial
Value
Range
Description
Para
meter
copy
Param
eter
clear
All
param
eter
clear
Re
la
te
d
p
a
ra
mete
rs
{
: enabled
×
: disabled
2
Summary of Contents for FR-A741-11K
Page 7: ...MEMO ...
Page 216: ...209 MEMO ...
