DCREG2 15P0059B3
DCREG4 USER MANUAL
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7.2.46 P085: SPEED INTEGRAL TIME INCREMENT DURING RAMP
Multiplication factor of the speed PI integral time during the ramp transient set
inside the drive.
7.2.47 P086: ARMATURE COMPENSATION
Value of the compensation of RxI resistive drop in the motor so as to adjust the
speed (back-electromotive force) using Varm as a feedback.
It expresses, as a percentage of the value set in par. P088 (RxI), the quantity
used in the armature resistive drop compensation. 100% of this parameter
corresponds to par. P088 whole value used for compensation.
7.2.48 P087: OFFSET OVER THE SPEED ERROR
This parameter, using the value per cent of the max. reference corresponding to
10V, allows the offset fine-tuning at the output of the speed loop, i.e. of the
speed error.
You may adjust this parameter whenever the motor tends to turn slowly even if
the speed / voltage reference is equal to zero.
The value set in this parameter is neither subject to the polarity limits relating to
parameter P012 nor to any min. and/or max. value imposed by parameters
P013 … P016.
7.2.49 P088: ARMATURE RESISTIVE DROP
This parameter, expressed in Volts, indicates the motor armature resistive drop
with a current equal to the drive nominal current, which is computed by the
autotuning function - set par. P001 at 3:RxI.
This parameter value is generally used to compute the back-electromotive force
and to display it in par. M007 (BEMF). This value is also used for the armature
resistive drop compensation both for the dynamic regulation of the field current
in field weakening mode and in the armature feedback (as a percentage set in
par. P086).
A software lock exists avoiding increasing par. P088 value until the value set in
par. P011 (VarmMax) is exceeded.
In this parameter, do not save any value exceeding the one saved in
EEPROM for P011, as this will cause the drive malfunction.
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