Emergency Stop Pushbutton (Option L45) - Siemens SINAMICS S150 Operating Instructions Manual

Electrical installation
4.9 Other connections
4.9.5

EMERGENCY STOP pushbutton (option L45)

Description
The EMERGENCY STOP pushbutton with protective collar is integrated in the door of the
cabinet unit. The contacts of the pushbutton are connected to terminal block –X120.
Category 0 and 1 EMERGENCY STOP functions can be activated in conjunction with
options L57, L59, and L60.
Note
When the EMERGENCY STOP pushbutton is pressed, the motor coasts to a standstill and
the main motor voltage is disconnected (to EN 60204-1 (VDE 0113)). Auxiliary voltages (e.g.
for separately-driven fans or anti-condensation heating) may still be present. Voltage is also
present within certain sections of the converter (e.g. the closed-loop controller or any
auxiliary equipment). If all the voltages have to be completely disconnected, the
EMERGENCY STOP 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 -X120.
Connection
Table 4-23
Terminal
NC: normally-closed contact
1)
Factory setting in converter for options L57, L59, and L60
2)
Max. connectable cross-section: 4 mm
74
Terminal block X120 –checkback contact "EMERGENCY STOP pushbutton in the
cabinet door"
Designation
1 NC
2 NC
3 NC
2)
4 NC
2)
1)
Checkback contacts of EMERGENCY STOP pushbutton in
Max. switching voltage: 250 V AC
Max. switching capacity: 250 VA
Required minimum load: ≥1 mA
(AWG 10)
2
Technical specifications
cabinet door
Max. load current: 10 A
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A