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U functions are displayed from keypad
ROM version K08000 or later
U01
Maximum compensation frequency
during braking torque limit
This function becomes effective, when the
torque limit (braking) is used. The inverter
automatically increases the output frequency
so that torque calculations do not exceed the
braking torque limit setting ( F41 or E17).
(When F41 or E17 is set to 999, it becomes
invalid.)
This function sets the increment of upper limit
for output frequency.
When regeneration avoidance is selected, the
resurrection ability can be improved by raising
the increment of upper limit. However, the
output frequency of the inverter is limited at
the frequency limit (high):F15
U 0 1
U S E R
Setting range : 0 to 65535
The set value "15" becomes 1Hz.
(The set value "1" becomes 1/15Hz)
U02
1st S-shape level at acceleration (start)
U03
2nd S-shape level at acceleration (stop)
U04
1st S-shape level at acceleration (start)
U05
2nd S-shape level at acceleration (stop)
When "2" is set in the function code: H07,
both curvilinear acceleration and deceleration
ranges of S-shape can be set up arbitrarily.
The range is the ratio for maximum output
frequency 1 (F03) or 2 (A01).
U 0 2
U S E R
U 0 3
U S E R
U 0 4
U S E R
U 0 5
U S E R
Setting range : 1 to 50%
5 Function Selection
0 1
0 2
0 3
0 4
0 5
119
100% value of this function means maximum
frequency (fmax) .
Acceleration time "tacc" and deceleration time
"tdec" of upper figure become longer than the
linear acceleration time and deceleration time.
When the set acceleration time (F07, E10, E12,
E14) is assumed to be "Ta" and deceleration
time (F08, E11, E13, E15) is assumed to be
"Td", "tacc" and "tdec" can be calculated by the
following expressions.
At acceleration,
5-67
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