Power Reduction At Increased Coolant Temperature; Power Reduction At Altitudes > 1000M Above Msl - Siemens SIMOVERT Master Drives Betriebsanleitung

Technical data
14.1

Power reduction at increased coolant temperature

The rated current must be reduced according to Figure 14.2 for cooling medium temperatures exceeding
40°C. Cooling medium temperatures > 50°C are not permissible.
permissible rated current
in %
100
90
80
75
70
60
10 20 30
Figure 14.2 Maximum permitted rated current depending on coolant temperature
14.2 Power reduction at altitudes > 1000m above MSL
The rated current must be reduced as shown in Figure 14.3 in the event of installation altitudes > 1000 m
above mean sea level. Installation altitudes > 2000 m above MSL (please enquire)
permissible rated current
in %
100
90
80
70
60
0 1000 2000
Figure 14.3 Maximum values for rated current and rated voltage depending on installation altitude
14-6
ENGLISH
Coolant temperature
in °C
40 50
3000 4000
Installation altitude
in m above sea level
permissible rated current
in %
100
90
80
70
60
0 1000 2000
Siemens AG
Common Rectifier
02.04
3000 4000
Installation altitude
in m above sea level
6SE7087-6AE85-0AA0
Operating instructions