Sinamics G120D Electrical Data - Siemens SINAMICS G120D Getting Started Manual

Vertical mounting
In some applications it may be advantageous to mount the Inverter vertically as shown in the
figure above. If the Inverter is mounted in the vertical position, the output current of the
Inverter must be reduced to prevent overheating of the Inverter, this is known as derating the
Inverter. There are two methods that can be used to prevent overheating of the Inverter, they
are:
Reduce output current
If you are using the same size of Inverter and Motor, that is, for example, a 1.5 kW Inverter
and a 1.5 kW motor, the output current from the Inverter must be reduced. This is
accomplished using the parameter P0640. The parameter P0640 defines the motor overload
current limit, as a percentage of the rated motor current. The output current needs to be
reduced by 20%. setting P0640 to 80 limits the output current from the Inverter to a
maximum of 80% of the rated motor current.
Oversize the Inverter
If you are using, for example, a 3.0 kW motor and a 3.0 kW Inverter and the derating by 20%
adversely affects the application; then oversizing the Inverter will provided a solution to the
problem. The motor will remain a 3.0 kW motor but an Inverter of the next highest power
rating is used; in this case, a 4.0 kW Inverter.
The Inverter is derated using parameter P0640 = 80, but the increased power rating of the
Inverter will allow the application to run as required.
Ambient temperature
When using the Inverter in the vertical position, including the derating, the ambient
temperature limit of 40°C must under no circumstances be exceeded.
3.4

SINAMICS G120D Electrical data

Power Module specifications - 3AC 380 V ... 500 V ± 10 %
Table 3- 2 Rated Output, Input and Fuses
Product Frame size
6SL3525-...
0PE17-5AA1 A
0PE21-5AA1 A
0PE23-0AA1 B
Getting Started
Getting Started, FW V4.5, A5E03404762A AB
Rated output
kW hp
0.75 1
1.5 1.5
3 4
3.4 SINAMICS G120D Electrical data
HO
Rated output Rated input
current current
A A
2.2 2.1
4.1 3.8
7.7 7.2
Installation
Fuse
3NA3...
A Type
10 803
-
10 803
-
16 805
-
19