240
PARAMETER
(2) Backlash measures [
Pr. 29, 140 to 143
]
Reduction gears have an engagement gap and have
a dead zone between forward rotation and reverse
rotation. This dead zone is called backlash, and this
gap disables a mechanical system from following
motor speed.
More specifically, a motor shaft develops excessive
torque when the direction of rotation changes or
when constant-speed operation shifts to
deceleration. Resulting in a sudden motor current
increase or regeneration status. Use "Backlash
measures" to avoid these conditions.
Set [
Pr. 29 = 3
] to use Backlash measures [
Pr. 140 to
143
].
Acceleration/deceleration pattern of Backlash
measures is linear acceleration/deceleration. The
acceleration/deceleration time is increased by the
stopping time.
A700
F700
[
Pr.13
]
Time
t1
[
Pr.141
]
t2
[
Pr.143
]
[
Pr.142
]
[
Pr.140
]
f1
f2
Output frequency (Hz)O
u
tp
u
t
fr
e
q
u
e
n
cy
(
H
z)
Output frequency (Hz)
Содержание FR-A700 Series
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