H - I - J PROGRAMMER’S MANUAL V8.94.11-
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2. Starts menu
This main menu includes the parameters related to the starting of the motor operated by the frequency converter.
Following parameters can be set here:
• normal rise time,
• mode of rise,
• data of rise with breakpoint,
• S curve,
• start inhibition,
• inhibition of direction change,
• start backwards,
• mode of start,
• loosen of the brake,
• flying scissor,
• flying start
Explanation of the acceleration time
Explanation, further submenus
It means at both control and regulation the limitation of the slope of the frequency rise.
2-1-3 referencing
Setting the reference of the rise and fall time.
(With fnom. selected, the rise and fall steepness
do not change with changing fmax.)
If the rise time is assigned to fmax (factory setting), the time set refers to between 0 Hz and fmax.
There is possibility for assigning the rise time also to the nominal frequency of the motor (in menu 2-1-3).
The effective acceleration time (tup) belonging to a given frequency can be calculated.
t
t = f / f T
up max up
f [Hz]
start
f
max
f
t
up
T
up
f
ref.sign.