Connecting The External Safety Loop; Interconnecting Optional Connections - Siemens SINAMICS GL150 Operating And Installation Instructions

6.11.4

Connecting the external safety loop

You can extend the "Safety shutdown" function using external devices. For instance, using an
Emergency Stop pushbutton or isolated contacts from the excitation. This is the reason that
the contacts of the safety circuit are connected to terminals. Precise data on these terminals
is provided in the circuit diagram and terminal diagram.
High voltages after a safety shutdown
In spite of a safety shutdown function, the drive may still be operational or high voltages may
still be present.
Residual voltages can result in death, severe injury or significant material damage. The
"Safety shutdown" function can neither ensure that the drive stops immediately nor can it
ensure that residual voltages do not still exist at the output terminals and within the unit.
Make sure that the drive no longer rotates and that there are no high voltages present.
Procedure
To connect the external safety loop, proceed as follows:
1. Switch off the converter.
2. Remove the jumper over the terminals, inserted in the factory, that you wish to use.
3. Connect the external safety circuit to these terminals.
6.12

Interconnecting optional connections

Depending on the range of options installed, further connections have to be interconnected.
Detailed information about interconnecting these options with the interfaces is provided in the
circuit manual.
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions 04/2017
WARNING
Electrical connection
6.12 Interconnecting optional connections
85