Procon V3D - Start Control Options and Flying Start

H - I - J PROGRAMMER’S MANUAL V8.94.11-
- 27 -
Submenu
Explanation, further submenus
Values
Default setting
Unit
2-5
start disable
After having put the system under voltage or after
function commands inhibit, stop and roll out, the
system can only be started from the start input
(terminal block) if prior to that the input was in stop
state!
no
yes
no
2-6
direction
change disable
always: The direction change function is
ineffective, independently of its source
(terminal unit, terminal block etc.).
Only direction “forward” prevails. If the
inhibition of the direction change will be
set in backward direction to “always”, the
equipment goes to the “forward”
direction according to the actual fall and
rise times.
in start: Direction change is possible in stop state
only. In Start mode, the direction change
function is ineffective, independently of
its source (terminal unit, terminal block
etc.)
no
always
in start
no
2-7
restart
It is of importance at short voltage blackout when using the start push button or the terminal start:
If the equipment was set to pulse start and a blackout occurred, on a repeated switch-on within the
restart time the equipment gives an automatic start.
When „N” is set, or with 2-5 start inhibit the start backward is inhibited
8
CAUTION
Its use must be thoroughly considered from the point of view of accident prevention!
2-7-2 time
N
1 - 60
N
s
2-8
start type
normal: Starts from 0 Hz
flying: Seeks the frequency necessary for
operating the rotating motor. In case of
short voltage blackout, especially with
large flywheel the “flying” mode is
advantageous, because the load does not
need to be stopped, and restarted from
standing state.
normal
flying
normal
2-9
brake release
At starting the motor, standing torque will be given
to the motor for the time preset here, giving time
for releasing a possible mechanical brake.
0,00 - 30,00
0,00
s
2-10
fly snips
For cutting up continuously moving material.
During the preset acceleration time, the shears takes the speed of the material, and then the
frequency converter gives a cutting pulse (shears starts).
(If the material is faster than the moving of the shears, the equipment does not give cutting pulse.)
2-10-1 speed up time
50 - 1000
300
ms
2-11
flying start
The rotation speed and direction of the running motor is established by the frequency converter,
which operates it from this rotation speed, according to the reference signal.
2-11-1 voltage step
This is the value, the motor voltage can increase
with per 1 ms during flying start. For motors with
higher power, a lower value should be set.
0,1 - 10,0
type-dependent
V
2-11-2 change frequency
This is the time needed for the frequency to reach
0 Hz starting from fmax.
Setting a higher value results in a slower but more
accurate determination, whereas setting a smaller
value results in a faster but less accurate
determination.
20 - 5000
200
ms