Technical data
Operating Manual PMCtendo SZ
1002405-EN-04
51
9.8
Derating
If you use the motor under conditions that differ from the standard ambient conditions, the
nominal torque M
N
of the motor is reduced.
Fig.: Derating depending on the surrounding temperature
Fig.: Derating depending on the installation height
Calculation
If surrounding temperature ϑ
amb
> 40 °C:
M
Nred
= M
N
⋅
K
ϑ
If installation altitude H > 1000 m above sea level:
M
Nred
= M
N
⋅
K
H
If the surrounding temperature ϑ
amb
> 40 °C and installation altitude H > 1000 m above sea
level:
M
Nred
= M
N
⋅
K
H
⋅
K
ϑ
