Siemens SINAMICS G150 - EMERGENCY off Pushbutton Installed in the Cabinet Door (Option L45)

Electrical installation
4.10 Other connections
Converter cabinet units
126 Operating Instructions, 07/2016, A5E03347396A
4.10.5
EMERGENCY OFF pushbutton installed in the cabinet door (option L45)
Description
The EMERGENCY OFF pushbutton with protective collar is integrated in the door of the
cabinet unit. The contacts of the pushbutton are connected to terminal block –X120. In
conjunction with options L57, L59, and L60, EMERGENCY OFF of category 0 and
EMERGENCY STOP of category 1 can be activated.
A braking unit may be necessary to achieve the required shutdown times.
Note
Pressing the EMERGENCY OFF button
When the EMERGENCY OFF pushbutton is pressed, the motor coasts to a standstill and the
main motor voltage is disconnected (to EN 60204
-1 (VDE 0113)) in conjunction with options
L57, L59 and L60. Auxiliary voltages (e.g. for separately
-driven fans or anti-condensation
heating) may still be present. Certain sections of the converter (e.g., the closed
-loop
controller or any auxiliary equipment) may also remain
live. If all the voltages have to be
completely disconnected, the EMERGENCY OFF pushbutton must be integrated in a
protection concept, which must be implemented on the line side. For this purpose, an NC
contact is installed at terminal block
-X120.
Connecting
Table 4- 28 Terminal block X120 –checkback contact "EMERGENCY OFF pushbutton in the cabinet
door"
Terminal
Designation
1)
Technical data
1
NC 1 Checkback contacts of EMERGENCY OFF pushbutton in cabinet
door
Max. load current: 10 A
Max. switching voltage: 250 V AC
Max. switching capacity: 250 VA
Required minimum load: ≥ 1 mA
2
3
NC 2
2)
4
Max. connectable cross-section: 4 mm²
1)
NC: Normally-closed contact
2)
Factory setting in converter for options L57, L59, and L60