'
-
,-,
- - -
1_11 • I I (Protection Parameters)
I'
I
,-
,_,,_,,_
Related parameters
I I
1-
1_
,_,,_,,_
,_
Regeneration
power
ride-through
control
IU
,_,
C I Regeneration power ride-through control
lu w
Cl:
I Ride-through time
E6580516
This fuction allows operation to continue using regenerated energy from the motor when a momentary
power failure occurs.
Continuation may not be possible depending on the machine's inertia or load state, so when selecting this
function,
always perform a canfirmation test. If an overvoltege trip (
OP
) occurs when this function is
operating or continuation is not possible for
long periods of time, lengthen the acceleration/deceleration
times. Automatic restarting is possible without fault stopping when this function is used with the retry
function.
I I r
setting value Function
wuc..
n
Regeneration power ride-through control OFF
w
'
Regeneration power ride-through control ON
'
* The ride-through time
IU
,_,
C
1=
I can be set between 0.0 and 25.0 seconds.
Since this function can keep only the inverter operational during an extended momentary power
failure,
the applicability will depend on the remainder of the load system equipment.
Note that when using the standard
control power connections, the inverter will be able to maintain control
power and operate for only approx. 1
OOmsec
during a momentary power failure. However, for 30kW and
smaller units, control power can be maintained for a longer period of time by using the main circuit
DC
terminals PA and
PC
as shown below.
PC
Remove the shorting bars between RO-R/L 1
and
SO-S/L2, or the inverter may be damaged.
Never use the above wiring for 37kW or
larger
units, as the inverter may be damaged.
Aut~restart
*Set
the auto-restart parameter
IF:,-
S
1=
I to use auto-restart.
Fl,-
St
setting value
Function
n
OFF
,_,
I
On
momentary power failure
I
c'
On ST make/break
3
Both I and
c'
IF:,-
S
l:
I set to I ···Activates when power is restored after a main circuit and control power circuit
undervoltage
is
detected.
I:~,-
Sc
I set to 2 ···Activates when ST-CC is opened and then closed again. (For commercial/inverter
power switching)
*Depending
upon the inverter capacity, a wait time of 200ms to 1500ms is automatically set when
restarting after a gate
block or CPU reset to reduce the motor's residual voltage.
- 84 -
To Next Page
Loading...
