138
To
rq
u
e
d
e
te
ct
io
n
864
Torque detection
0.1%
150%
0 to 400%
You can make setting to output a signal if the motor
torque exceeds the predetermined value.
—
865
Refer to
Pr. 41
.
866
Refer to
Pr. 55
.
867
Refer to
Pr. 52
.
868
Refer to
Pr. 858
.
—
872
Refer to
Pr. 251
.
S
peed limit
during
speed cont
rol
873
Speed limit
0.01Hz
20Hz
0 to 120Hz
Frequency is limited at the set fre
Pr.873
during vector control.
—
874
Refer to
Pr. 22
.
F
ault
def
init
ion
875
Fault definition
1
0
0
At occurrence of any fault, output is shut off
immediately. At this time, the fault output also turns
on.
1
At occurrence of external thermal operation (OHT),
electronic thermal relay function (THM) or PTC
thermistor function (PTC) fault, the motor is
decelerated to a stop.
At occurrence of fault other than OHT, THM and
PTC, trips immediately. Same operation as when "0"
is set is performed under position control.
—
877 to 881
Refer to
Pr. 828
.
Regener
at
ion
avoidance
func
tion
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
rame
te
r
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.
889
Free parameter 2
1
9999
0 to 9999
—
891
Refer to
Pr. 52
.
Func
tio
n
Parameter
Name
Incre
ments
Initial
Value
Range
Description
Re
la
te
d
p
ara
m
e
te
rs
SensorlessS
e
n
s
o
rl
e
s
s
Sensorless
VectorV
e
c
to
r
Vector
VectorV
e
c
to
r
Vector
2
