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PARAMETERS
82
Pr. 7 "acceleration time"
Pr. 8 "deceleration time"
Related parameters
Note:1. Automatic restart after instantaneous
p
ower failure uses a reduced-volta
g
e
startin
g
s
y
stem in which the out
p
ut volta
g
e is raised
g
raduall
y
with the
p
reset
frequency unchanged, independently of the coasting speed of the motor.
As in the FR-A024/044, a motor coastin
g
s
p
eed detection s
y
stem
(
s
p
eed
search s
y
stem
)
is not used but the out
p
ut fre
q
uenc
y
before an instantaneous
p
ower failure is out
p
ut. Therefore, if the instantaneous
p
ower failure time is
lon
g
er than 0.2s, the fre
q
uenc
y
before the instantaneous
p
ower failure
cannot be stored and the inverter will start at 0Hz.
2. The SU and FU si
g
nals are not out
p
ut durin
g
restart but are out
p
ut after the
restart cushion time has elapsed.
CAUTION
When automatic restart after instantaneous power failure has been
selected, the motor and machine will start suddenl
y
(
after the reset time
has elapsed) after occurrence of an instantaneous power failure.
Stay away from the motor and machine.
When
y
ou have selected automatic restart after instantaneous power
failure, apply the supplied CAUTION seals in easily visible places.
When the start signal is turned off or the
STOP
RESET
key of the PU is pressed
during the cushion time for automatic restart after instantaneous power
failure, deceleration starts after the automatic restart cushion time set in
Pr. 58 "cushion time for automatic restart after instantaneous power
failure" has elapsed.
4.2.19 Shortest acceleration/deceleration mode (Pr. 60 to Pr. 63)
Pr. 60 "shortest acceleration/deceleration mode"
Pr. 61 "reference I for intelligent mode"
Pr. 62 "ref. I for intelligent mode accel"
Pr. 63 "ref. I for intelligent mode decel"
The inverter automatically sets appropriate parameters for operation.
!
If you do not set the acceleration and deceleration times and V/F pattern, you can
run the inverter as if appropriate values had been set in the corresponding
parameters. This operation mode is useful to start operation immediately without
making fine parameter settings.
Parameter
Number
Factory
Setting
Setting Range Remarks
60 0 0, 1, 2, 11, 12
61 9999 0 to 500A, 9999
9999: Referenced from rated
inverter current.
62 9999 0 to 200%, 9999
63 9999 0 to 200%, 9999
4