96 Chapter 7 - Parameters Description User Manual
P.200 = 1 Enabling of the current limit control during the ramps.
P.200 = 2 Ramp-curr ctrl
During speed acceleration or deceleration, if the current value exceeds the setting of P. 2 0 1 (Current
limit during the ramp), the ramp stage will be momentary blocked and the speed kept at the value
reached in this moment.
When the current will decrease again below this limit, the ramp will be restarted with the profile set.
The ramp time is thus lengthened by the execution of this control.
P.201 Curr lim in ramp (Current limit in ramp)
Value of the current limit during the ramps.
It is as percentage of the nominal current of the drive (see also parameter d.950, chapter DISPLAY).
P.202 En lim in steady (Enabling limit in steady)
Enabling of the current limit control during the ramps.
P.203 Curr lim steady (Current limit in steady)
Value of the current limit during steady state.
It is as percentage of the nominal current of the drive (see also parameter d.950, chapter DISPLAY).
P.204 Curr ctrl P-gain (Current control proportional gain)
Proportional gain of the current regulator.
a setting too low could have a slow reaction on the regulation response.
a setting too high could can have a too fast reaction with consequent oscillations of the system.
P.205 Curr ctrl I-gain (Current control integral gain)
Integral gain of the current regulation.
a setting too low could have a slow reaction on the regulation response.
a setting too high could can have a too fast reaction with consequent oscillations of the system.
P.206 Curr ctr feedfwd (Current control feed forward)
As described in the figure below, the setting of the feed-forward, allows to avoid the drive trip for overcurrent
(OC) during fast acceleration of the load.
When the current exceeds the value of Curr lim in ramp, a quick frequency step (percentage of the motor
rated slip), is automatically sutracted to the reference.
In this case the ramp is extended in order to keep the current level under this limit.
A shortening of the extended ramp time, can be of course achieved excluding the load.
This function operates only during the ramp time (not in steady state).
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