Siemens SINAMICS PM240-2 Hardware Installation Manual page 94

Technical data
7.8 Restrictions for special ambient conditions
Current reduction as a function of the installation altitude and ambient temperature
At installation altitudes above 1000 m and temperatures higher than 40° C (low overload) or
50° C (high overload), the inverter output current is reduced. The following tables contain the
details.
Table 7- 30
Installation
altitude [m]
Table 7- 31
Installation
altitude [m]
Also observe the maximum permissible ambient operating temperatures for the Control Unit
and possibly the Operator Panel.
94
Maximum permitted output current for loading according to LO
20 25
up to
1000
1500
2000 100
2500 100
3000 100 98
3500 98 92
4000 91 86
Maximum permitted output current when loading according to HO
20 25
up to
1000
1500
2000
2500 100
3000 100
3500 98 94
4000 91 88
Ambient temperature [°C]
30 35 40
Output current in [%] when loading to LO
100
100 95
97 90
98 91 85
92 86 80
86 81 75
81 75 70
Ambient temperature [°C]
30 35 40
Output current in [%] when loading to HO
100
100
100 99
98 94
96 92 88
90 86 83
84 81 77
Hardware Installation Manual, 01/2017, A5E33294624B AE
45 50 55
93 85 76
88 81 72
83 77 68
79 72 64
74 68 60
69 64 57
65 60 53
45 50 55
87
95 83
95 90 78
89 85 74
84 80 70
79 75 65
74 70 61
Power Module PM240-2
60
66
63
59
56
53
50
46
60
74
70
67
63
59
56
52