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116 Technical data
Output derating
Derate the continuous output current of the drive if
•
ambient temperature exceeds +40 °C (+104 °F) or
•
drive is installed higher than 1000 m (3280 ft) above sea level
•
switching frequency is other than default.
Note: The final derating factor is a multiplication of all applicable derating factors.
Ambient temperature derating
In the temperature range +40...55 °C (+104...131 °F), the rated output current is derated
by 1% for every added 1 °C (1.8 °F) as follows. Calculate the output current by multiplying
the current given in the rating table by the derating factor.
Derating factor
1.00
0.85
Altitude derating
At altitudes from 1000 to 4000 m (3300 to 13123 ft) above sea level, the derating is 1% for
every 100 m (328 ft). For a more accurate derating, use the DriveSize PC tool.
Deratings for special settings in the drive control program
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.
Frame size
R10
R11
Note: Changing the value of parameter 97.01 Switching frequency reference does not
require derating.
For more information, contact local ABB.
+40 °C
+104 °F
Derating factor (k) for the minimum switching frequencies
1 kHz
2 kHz
1
0.92
1
0.92
+55 °C
Ambient temperature
+131 °F
4kHz
0.78
0.78
8 kHz
0.58
0.58
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