Emerson Digitax ST - Page 176

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176 Digitax ST User Guide
Issue Number: 5
Table 13-7 Repetitive profile with defined ratio between I
base
to I
peak
at 6 kHz switching frequency, ≤240 Vac supply for DST120X and ≤480
Vac supply for DST140X
Table 13-8 Repetitive profile with defined ratio between I
base
to I
peak
at 8 kHz switching frequency, ≤240 Vac supply for DST120X and ≤480
Vac supply for DST140X
13.1.5 Continuous rating
Table 13-9 Continuous rating with no overload, ≤230 Vac supply
for DST120X and ≤400 Vac supply for DST140X
Table 13-10 Continuous rating with no overload, ≤240 Vac supply
for DST120X and ≤480 Vac supply for DST140X
The power available from a rectifier may limit these figures.
The drive will automatically reduce the output switching frequency so that the highest possible output current can be supported without a thermal trip.
This allows the drive to support the highest possible current at standstill while operating at a higher switching frequency under normal running
conditions.
This feature can be disabled using drive Pr 5.35, see the Advanced User Guide for further details.
Model
I
n
Overloads
1.5 x I
base
for 60 s 1.75 x I
base
for 40 s 2.0 x I
base
for 10 s 2.5 x I
base
for 2 s 3.0 x I
base
for 0.25 s
I
base
I
peak
I
base
I
peak
I
base
I
peak
I
base
I
peak
I
base
I
peak
A
DST1201 1.7 1.7 2.6 1.7 3.0 1.7 3.4 1.7 4.3 1.7 5.1
DST1202 3.8 3.8 5.7 3.8 6.7 3.8 7.6 3.8 9.5 3.8 11.4
DST1203 5.4 5.4 8.1 5.4 9.5 5.4 10.8 5.4 13.5 5.4 16.2
DST1204 7.6 7.6 11.4 7.6 13.3 7.6 15.2 7.6 19.0 7.6 22.8
DST1401 1.5 1.5 2.3 1.5 2.6 1.5 3.0 1.5 3.8 1.5 4.5
DST1402 2.7 2.7 4.1 2.7 4.7 2.7 5.4 2.7 6.8 2.7 8.1
DST1403 4.0 4.0 6.0 4.0 7.0 4.0 8.0 4.0 10.0 4.0 12.0
DST1404 5.9 5.9 8.9 5.9 10.3 5.9 11.8 5.9 14.8 5.9 17.7
DST1405 8.0 8.0 12.0 8.0 14.0 8.0 16.0 8.0 20.0 8.0 24.0
Model
I
n
Overloads
1.5 x I
base
for 60 s 1.75 x I
base
for 40 s 2.0 x I
base
for 10 s 2.5 x I
base
for 2 s 3.0 x I
base
for 0.25 s
I
base
I
peak
I
base
I
peak
I
base
I
peak
I
base
I
peak
I
base
I
peak
A
DST1201 1.7 1.7 2.6 1.7 3.0 1.7 3.4 1.7 4.3 1.7 5.1
DST1202 3.8 3.8 5.7 3.8 6.7 3.8 7.6 3.8 9.5 3.8 11.4
DST1203 5.4 5.4 8.1 5.4 9.5 5.4 10.8 5.4 13.5 5.4 16.2
DST1204 7.6 7.6 11.4 7.6 13.3 7.6 15.2 7.6 19.0 7.6 22.8
DST1401 1.5 1.5 2.3 1.5 2.6 1.5 3.0 1.5 3.8 1.5 4.5
DST1402 2.7 2.7 4.1 2.7 4.7 2.7 5.4 2.7 6.8 2.7 8.1
DST1403 4.0 4.0 6.0 4.0 7.0 4.0 8.0 4.0 10.0 4.0 12.0
DST1404 5.9 5.9 8.9 5.6 9.8 5.9 11.8 5.9 14.8 5.9 17.7
DST1405 8.0 7.2 10.8 6.8 11.9 7.6 15.2 7.6 19.0 7.6 22.8
Model
I
n
6kHz 8kHz 12kHz
I
cont
at
150 Hz
I
cont
at
0 Hz
I
cont
at
150 Hz
I
cont
at
0 Hz
I
cont
at
150 Hz
I
cont
at
0 Hz
A
DST1201 1.7 1.7
DST1202 3.8 3.8
DST1203 5.4 5.4
DST1204 7.6 7.6
DST1401 1.5 1.5
DST1402 2.7 2.7
DST1403 4.0 4.0
DST1404 5.9 5.9 4.2
DST1405 8.0 8.0 7.0 7.9 5.0
Model
I
n
6kHz 8kHz 12kHz
I
cont
at
150 Hz
I
cont
at
0 Hz
I
cont
at
150 Hz
I
cont
at
0 Hz
I
cont
at
150 Hz
I
cont
at
0 Hz
A
DST1201 1.7 1.7
DST1202 3.8 3.8
DST1203 5.4 5.4
DST1204 7.6 7.6
DST1401 1.5 1.5
DST1402 2.7 2.7
DST1403 4.0 4.0 3.4
DST1404 5.9 5.9 5.4 3.4
DST1405 8.0 8.0 7.5 8.0 6.2 6.4 4.0
NOTE