Electrical installation
4.9 Other connections
Drive converter cabinet units
74
Operating Instructions, 07/07, A5E00288214A
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 block X120 –checkback contact "EMERGENCY STOP pushbutton in the
cabinet door"
Terminal
Designation
1)
Technical specifications
1
NC
2
NC
3
NC
2)
4
NC
2)
Checkback contacts of EMERGENCY STOP 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
1)
NC: normally-closed contact
2)
Factory setting in converter for options L57, L59, and L60
Max. connectable cross-section: 4 mm
2
(AWG 10)
