Derating Due To Installation Altitude - BONFIGLIOLI DGM MPM Technical Manual

8.2.2

Derating due to installation altitude

The following applies to all DGM Modular drive controllers:
◼
No reduction in performance is needed in S1 mode up to 1000m above sea level.
◼ A reduction in performance of 1% every 100 m is needed from 1000m ≥ 2000m. Overvoltage category 3 is observed!
◼ Overvoltage category 2 should be observed from 2000 m ≥ 4000 m because of the lower air pressure!
In order to observe the overvoltage category:
◼
use external overvoltage protection in the DGM Modular's mains cable.
◼
reduce the input voltage.
Please contact the Bonfiglioli Service department.
The respective max. output values can be determined from the following characteristic curves.
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% [
m
o r t
s
s
g
n
a
g
s
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x
a
m
Fig. 49: Derating of maximum output current as a result of installation altitude
Fig. 50: Derating of maximum input voltage as a result of installation altitude
Operating manual for DGM Modular | DOC02389740-0006 | 2021-07 | V1.70 EN
Height above sea level [m]
Höhe über NN [m]
Height above sea level [m]
Höhe über NN [m]
91