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E6581301
E-34
5
[Parameter setting]
Title Function Adjustment range Default setting
WXE
Regenerative power ride-through
control selection
:Disabled
:Power ride-through
: Deceleration stop during power failure:
:
Synchronized deceleration/acceleration
(synchronized acceleration/deceleration signal)
:Synchronized deceleration/acceleration
(synchronized acceleration/deceleration
signal+power failure)
H
Non
-
stop
control time/Deceleration
time during power failure
~ sec.
H Synchronized deceleration time ~ sec.
H Synchronized acceleration time ~ sec.
H
Under
voltage
detection
level
~
%
,
:
Automatic mode
H
Regenerative power ride-through control level
~ %
Note 1: The power ride-through control time when WXE= depends on the setting of H, and the
deceleration time when WXE= depends on the setting of H.
Also, the deceleration time and the acceleration time when WXE= or depend on the setting of
H and that of H, respectively.
Note 2: Even if these functions are used, a motor may coast according to load conditions.
In this case, use the auto-restart function along with this parameter function.
Note 3: These functions do not operate at the time of torque control.
Note 4: Jog run function doesn't operate at synchronized acceleration/deceleration.
Note 5: Although the setting of H can be written when WXE is set to (non-stop control), it cannot be
written when WXE is set to (momentary power failure slowdown stop).
Note 6: For the parameter Hѽ 100% corresponds to 200V (200V class) or 400V (400V class).
■ An example of setting when WXE=
[When power is interrupted]
Motor speed
About 100ms᳸10s
Input voltage
Coasting stop
Note: If power is interrupted during deceleration stop
, power
ride-through control will not be performed.
Internal DC
voltage level
H
H
Regenerative power
ride-through control selection
[If momentary power failure occurs]
Motor speed
Input voltage
*1
Note: If power is interrupted during deceleration stop
, power
ride-through control will not be performed.
Internal DC
voltage level
H
H
Non-stop control
Normal acceleration
ŬThe time for which the operation of the motor
can be continued depends on the machine
inertia and load conditions. Before using this
function, therefore, perform verification tests.
ŬUse with the retry function allows the motor to
be restarted automatically without being
brought to an abnormal stop.
*1
*1