Emergency Off Pushbutton Installed In The Cabinet Door (Option L45) - Siemens SINAMICS G150 Operating Instructions Manual

Electrical installation
4.11 Other connections
4.11.9

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
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- 43
Terminal
1)
2)
Max. connectable cross-section: 4 mm
134
Terminal block X120 –checkback contact "EMERGENCY OFF pushbutton in the cabinet
door"
Designation
1 NC 1
2
3 NC 2
2)
4
NC: Normally-closed contact
Factory setting in converter for options L57, L59, and L60
1)
Checkback contacts of EMERGENCY OFF pushbutton in
Max. switching voltage: 250 V AC
Max. switching capacity: 250 VA
Required minimum load: ≥1 mA
2
Technical data
cabinet door
Max. load current: 10 A
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A