Chapter 10│Drive Derating; Temperature Derating; Altitude Derating - LiteOn EVO600021S0D2E20F User Manual

By derating the drive capacity, the drive can run at above the rated temperature, altitude and
default carrier frequency. For example, a drive with 20 A rated current can be derated to 16A
current so as to run with higher temperature tolerance.
Change the carrier frequency to derate the drive.

10.1 Temperature Derating

When the ambient temperature exceeds the tolerance specified in the product specifications,
the drive output current must be derated to ensure the performance life. Meanwhile, set P7-12
(Installation Method Selection) according to the installation conditions so as to ensure reliable
drive overload protection.
100
85
70
55

10.2 Altitude Derating

The most appropriate altitude to install the drive is below 1000m.

The drive rated voltage and the rated output current must be derated for 1% per 100 m

for drive installations from 1000 m to 3000 m altitude.
The drive cannot be installed above 3000 m altitude.

Chapter 10│Drive Derating
P7-12=1 Side by side Mounting
-10 30
P7-12=0 IP20 Enclosure Installation
P7-05
40 50 (Ambient Temperature
setting : ℃)
176