■
Altitude derating
At altitudes 1000 … 2000 m (3281 … 6562 ft) above sea level, the output current derating
is 1 percentage point for every added 100 m (328 ft). For example, the derating factor for
1500 m (4921 ft) is 0.95. For altitudes above 2000 m (6562 ft), contact ABB.
If surrounding air temperature is below +40 °C, the derating can be reduced by 1.5
percentage points for every 1 °C reduction in temperature. A few altitude derating curves
are shown below.
1500 m
1000 m
+25 °C
+30 °C
+77 °F
+86 °F
+40 °C
+104 °F
+35 °C
+95 °F
+20 °C
+68 °F
3300 ft
4921 ft
2000 m
6562 ft
2500 m
8202 ft
3000 m
9842 ft
3500 m
11429 ft
4000 m
13123 ft
1.00
0.95
0.85
0.90
0.80
Derating factor 1.00
Derating factor 0.95
Derating factor 0.90
Derating factor 0.85
Derating factor 0.80
For a more accurate derating, use the DriveSize PC tool.
■
Switching frequency derating
Switching frequencies other than 1.5 kHz can require output current derating. If you change
the minimum switching frequency with parameter
97.02 Minimum switching frequency
,
calculate the derated output current by multiplying the current given in the rating table by
the derating factor given in the table below. Changing parameter
97.01 Switching frequency
reference
does not require derating.
Derating factor (k) for the minimum switching frequencies
8 kHz
4 kHz
2 kHz
1 kHz
0.58
0.78
0.92
1
Technical data 139
Summary of Contents for ACH580-04
Page 1: ... ABB DRIVES FOR HVAC ACH580 04 drive modules Hardware manual ...
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Page 124: ...124 ...
Page 128: ...3 6 5 5 128 Maintenance ...
Page 134: ...134 ...
Page 156: ...R10 standard configuration 156 Dimension drawings ...
Page 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Page 158: ...R10 with option B051 158 Dimension drawings ...
Page 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Page 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
Page 161: ...R10 with option B051 P906 190 Tools R10 1 1 Dimension drawings 161 ...
Page 162: ...R11 standard configuration 162 Dimension drawings ...
Page 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
Page 164: ...R11 with option B051 164 Dimension drawings ...
Page 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Page 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
Page 167: ...R11 with option B051 P906 Dimension drawings 167 ...
Page 186: ... Declaration of conformity 186 The Safe torque off function ...
Page 206: ...Dimension drawing 206 External control unit option P906 ...
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