Control Techniques Commander SE Advanced User's Manual page 40

4.17
0 ~ Maximum drive current
This parameter is proportional to the length of the vector in the x axis of the reference frame and is equivalent to the
magnetising current in each output phase in amps.
4.18
0 ~ Maximum current limit
*Units: % of rated active current limit
This parameter is an indication of the internal active current limit, it's range depends on the settings of 5.07 (or 21.07) and
5.10 (or 20.10) and could be very high if the motor rating is set very much smaller than the drive rating. For this reason an
absolute maximum of 1000% is applied.
4.19
0 ~ 100.0
*Units: % of trip level
This parameter gives a continuous indication of modelled motor temperature as a percentage of the trip level. When this
parameter reaches 100% the drive will give an Ixt trip or apply a restriction on the current limit. The level of the accumulator is
given by:
4.19 = (4.01
4.20
± Over-riding current limit
*Units: % of motor rated active current
This parameter indicates the drive loading as a percentage of motor rated active current, where the 100% rated active is 5.07
x 5.10. Therefore:
4.20 = motor active current (4.02) x 100% / motor rated current (5.07) x power factor (5.10)
A positive value in this parameter indicates motoring load and a negative value indicates a regenerating load.
4.21
This parameter defines whether percentage load or output current is displayed.
0 Ld Value of parameter 4.20 displayed
1 A Value of parameter 4.01 displayed
40
Motor magnetising current
Over-riding current limit
Overload accumulator
2 -t/4.15 2
(1 - e ) / (5.07 x 1.05) ) x 100%
Drive load indicator
Load indication selector
0 or 1 0
A RO Bi
*
RO Uni
*
RO Uni
*
RO Bi
RO Uni Txt
Commander SE Advanced User Guide
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Issue Number: 4