Emergency Stop Category 0; 24 Vdc (Option L57) - Siemens Sinamics G120P Operating Instructions Manual

Electrical installation
4.9 Other connections
4.9.9

EMERGENCY STOP Category 0; 24 VDC (option L57)

Description
EMERGENCY OFF Category 0 for uncontrolled stop according to EN 60204-1. This function
disconnects the cabinet unit from the power supply via the line contactor, while bypassing the
electronics by means of a safety combination according to EN 60204-1. The motor then coasts
to a stop. To prevent the main contactor from switching under load, an OFF2 is triggered
simultaneously. The operational status is indicated by means of three LEDs (-K120).
Note
Pressing the EMERGENCY OFF button
When the EMERGENCY OFF button is pressed, an uncontrolled stop of the motor takes
place and the main motor voltage is disconnected in accordance with EN 60204-1. Auxiliary
voltages (e.g. for illumination or anti-condensation heating) may still be present. Certain
sections of the inverter (e.g. the closed-loop controller or any auxiliary equipment) also
remain live.
Connecting
Table 4- 40
Terminal
NO: Normally-open contact
1)
Max. connectable cross-section: 4 mm
Diagnosis
Messages output during operation and in the event of faults (meaning of LEDs on -K120) are
described in the "Additional Operating Instructions" of the Operating Instructions.
114
Terminal block X120 – connection for EMERGENCY OFF Category 0, 24 VDC
3
6
4
5
7
8
24 VDC pushbutton circuit
Loop-in EMERGENCY OFF button from line side,
remove jumper 3-6 and connect the button
Jumper wired in the factory
"On" for monitored start:
Remove jumper 15–16 and connect the pushbutton
2
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A