Mitsubishi Electric FR-E700 Instruction Manual page 168

Parameter overview
Parameter
Func-
Name
tion
555 Current average time
556 Data output mask time
Current average value
557 monitor signal output
reference current
563
Refer to Pr. 52
564
—
571 Refer to Pr. 13
611 Refer to Pr. 57
Speed smoothing
653
control
665 Refer to Pr. 882
800 Refer to Pr. 80
—
859 Refer to Pr. 84
872 Refer to Pr. 251
Regeneration
882 avoidance operation
selection
Regeneration
883 avoidance operation
level
Regeneration avoid-
885 ance compensation
frequency limit value
Regeneration avoid-
886
ance voltage gain
Regeneration avoid-
665
ance frequency gain
Tab. 6-1: Parameter overview (28)
6 - 28
Incre- Initial Setting
ments value range
0.1s 1s 0.1–1.0s
0.1s 0s 0.0–20.0s
Rated
0.01A inverter 0–500A
current
0.1% 0 0–200%
0
1
1 0
2
400V/
0.1V 300–800V
780V *
0–10Hz
0.01Hz 6Hz
9999
0.1% 100% 0–200%
0.1% 100% 0–200%
Description
Set the time taken to average the
current during start bit output
(1s).
Set the time for not obtaining
(mask) transient state data.
Set the reference (100%) for out-
putting the signal of the current
average value
The torque fluctuation is reduced
to reduce vibration due to
mechanical resonance.
Regeneration avoidance function
invalid
Regeneration avoidance function
is always valid
Regeneration avoidance function
is valid only during a constant
speed operation
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 ×
2 .
* The initial value differs according
to the voltage class:
200V/400V
Set the limit value of frequency
which rises at activation of regen-
eration avoidance function.
Frequency limit invalid
Adjusts responsiveness at activa-
tion of regeneration avoidance. A
larger setting of Pr. 886 will
improve responsiveness to the
bus voltage change. However, the
output frequency could become
unstable.
When the load inertia of the motor
is large, decrease the Pr. 886 set-
ting.When vibration is not sup-
pressed by decreasing the Pr. 886
setting, set a smaller value in
Pr. 665.
Parameter
All
Para- Para-
Para-
meter meter
meter
copy clear
clear
Refer
to
page
✔: enabled
—: disabled
✔ ✔ ✔
✔ ✔ ✔
6-301
✔ ✔ ✔
✔ ✔ ✔
6-173
✔ ✔ ✔
✔ ✔ ✔
6-292
✔ ✔ ✔
✔ ✔ ✔