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112
Parameter list
Operation setting at fault occurrence — Regenerative avoidance operation (Pr.665, Pr.882
to Pr.886)
Acceleration/deceleration time/pattern adjustment — Regenerative avoidance operation
(Pr.665, Pr.882 to Pr.886)
882
Regeneration
avoidance operation
selection
10
0 Regeneration avoidance function invalid
1
Regeneration avoidance function is always
valid
2
Regeneration avoidance function is valid only
during a constant speed operation
883
Regeneration
avoidance operation
level
0.1V
DC380V
/760V
*1
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 × .
884
Regeneration
avoidance at
deceleration detection
sensitivity
1 0 0 to 5
Set sensitivity to detect the bus voltage
change.
1 (Low) → 5 (High)
885
Regeneration
avoidance
compensation
frequency limit value
0.01Hz 6Hz *2
0 to 30Hz
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%
*1 The initial value differs according to the voltage level. (200V / 400V)
*2 Performing IPM parameter initialization changes the settings. (Refer to page 43)
Useful functions — Free parameter (Pr.888, Pr.889)
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
××
Parameter
Name
Incre-
ments
Initial
Value
Range Description
Parameter
copy
Parameter
clear
All parameter
clear
Related
parameters
: enabled
× : disabled
2