NORD Drivesystems BU0300 User Manual

Page 125

9 Technical data

BU 0300 EN

Subject to technical alterations

125

Power derating for high ambient temperatures (motor-attached layout)

If the frequency inverter is operated at high ambient temperatures in a
motor-attached layout, power reduction must be taken into account in
individual cases. The power percentages available for the respective
frequency inverters in various ambient temperatures are listed below.
The values listed apply for a pulse frequency of 6 kHZ (factory setting).

400V devices

Ambient temperature

40° C

45° C

50° C

Frequency inverter

nominal power

0.55 kW

100 %

0.75 kW

100 %

1.1 kW

100 %

1.5 kW

100 %

96 %

92 %

Power derating for high ambient temperatures (version with wall-mounting kit):

If the inverter is mounted close to the motor using the wall-mounting kit, power
reduction may need to be considered in some cases where operation occurs under
high ambient temperatures. The power percentages available for the respective
frequency inverters in various ambient temperatures are listed below. The values
listed apply for a pulse frequency of 6 kHZ (factory setting).

400V devices

Ambient temperature

40° C

45° C

50° C

Frequency inverter

nominal power

0.55 kW

100 %

0.75 kW

100 %

1.1 kW

100 %

1.5 kW

82 %

79 %

75 %