KEB COMBIVERT G6, Руководство пользователя

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14
CP-Parameter for open-loop operation
CP14 S-curve time acceleration forward
Co-domain Setting Description
0.00 (off)…5.00 s 0.00 s
(off)
For some applications it is of advantage when the drive
starts and stops jerk-free. This is achieved through a
straightening of the acceleration and deceleration ramps.
The straightening time, also called S-curve time, can be
adjusted with CP14.
t1 t1 t1 t1
t2 t3
+f [Hz]
-f [Hz]
t [s]
t1 t1 t1 t1
t2 t3
t1 S-curve time (CP14)
t2 Acceleration time (CP12)
t3 Deceleration time (CP13)
Attention
In order to drive defined ramps with activated S-curve time, the preset
acceleration and deceleration times (CP12 and CP13) must be ad-
justed higher than the S-curve time (CP14).
CP15 Boost
Co-domain Setting Description
0,0…25,5 % LTK In the lower speed range a large part of the motor voltage
decreases on the stator resistance. To keep the breakdown
torque nearly constant over the entire speed range, the voltage
decrease can be compensated by the Boost.
Adjustment:
• Determine the rate of utilization in no-load operation
• Preset about 10 Hz and adjust the boost, by way that the
same rate of utilization is reached as with rated speed.
Attention
When the motor, during continuous operation, drives with low speed
and too high voltage it can lead to an overheating of the motor.
*) dependent on power circuit