HVAC400X – APPLICATION MANUAL
EN2B-0417GE51 R0719
106
Fig. 21. Ramp Time Optimizer
Legend
A.
Maximum frequency.
C.
New deceleration time (Old optimizing percentage).
B.
Old deceleration time.
P3.4.9 RAMP TIME OPT. %-STEP (ID 1809)
You can use this parameter to set the step range of acceleration/deceleration ramp for ramp time optimizer to
increase the ramp when the limit is reached.
10.0% means that when running against the overvoltage controller at ramp down, the deceleration time is
increased with 10.0% of the momentary value.
P3.4.10 RAMP OPTIM. MAX TIME (ID 1810)
You can use this parameter to set the maximum time for the ramp optimizer.
P3.4.11 START MAGNETISING TIME (ID 516)
You can use this parameter to set the time during which the DC current is fed to the motor before the acceleration
starts.
P3.4.12 START MAGNETISING CURRENT (ID 517)
You can use this parameter to set the DC current that is fed into the motor at the start. If the value of this parameter
is set to
0
, the Start Magnetizing function is disabled.
P3.4.13 DC BRAKING TIME AT STOP (ID 508)
You can use this parameter to set the braking is ON or OFF and to give the braking time when the motor stops. If
the value of this parameter is set to
0
, the DC Brake function is disabled.
P3.4.14 DC BRAKE CURRENT (ID 507)
You can use this parameter to set the current that is fed into the motor during DC braking. If the value of this
parameter is set to
0
, the DC Brake function is disabled.
t [s]
[Hz]
f
out
A
B
C