Connection Example - Siemens SINAMICS S120 Equipment Manual

4.7.3.2

Connection example

Figure 4-28 Connection example for Active Interface Module Chassis-2
NOTICE
Damage to the devices as a result of excessively long switching times of the bypass
contactor
When using a main contactor with excessively long switching times (maximum 500 ms), the
required overlap phase is not guaranteed, where both contactors are simultaneously pulled-
in. As a consequence, the Active Interface Module Chassis-2 can be overloaded and
destroyed.
• Only use Siemens main contactors; the associated data can be found in Chapter "Pre-
• Wire the control and feedback of the contactors to the Active Line Module Chassis-2 to
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9
charging input circuit for Active Interface Modules Chassis-2 (Page 119)".
ensure a correct control sequence.
Line-side power components
4.7 Active Interface Modules Chassis-2
107