Siemens SINAMICS G120 Hardware Installation Manual page 75

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. Details are provided in the tables
below.
Table 7-11
Installation
altitude [m]
Table 7-12
Installation
altitude [m]
Permissible line supplies dependent on the installation altitude
● For installation altitudes ≤ 2000 m above sea level, it is permissible to connect the inverter
to any of the line supplies that are specified for it.
● For installation altitudes 2000 m ... 4000 m above sea level, the following applies:
– Connection to a TN line system with grounded neutral point is permissible.
– TN systems with grounded line conductor are not permitted.
– The TN line system with grounded neutral point can also be supplied using an isolation
– The phase-to-phase voltage does not have to be reduced.
PM240P-2 Power Modules
Hardware Installation Manual, 11/2016, A5E37800827C AB
Output current as a function of ambient temperature [%] when loading to LO
20 25
up to
1000
1500
2000 100
2500 100
3000 100 98
3500 98 92
4000 91 86
Output current as a function of ambient temperature [%] when loading to HO
20 25
up to
1000
1500
2000
2500 100
3000 100
3500 98 94
4000 91 88
transformer.
7.7 Restrictions for special ambient conditions
Ambient temperature / inverter output current [°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
Technical data
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
60
66
63
59
56
53
50
46
60
74
70
67
63
59
56
52
75