Siemens SINAMICS G120P, Operating Instructions Manual

Page: 115 / 496

Electrical installation
4.9 Other connections
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
115
4.9.10 EMERGENCY STOP Category 1; 24 VDC (option L60)
Description
EMERGENCY STOP Category 1 for controlled stopping according to EN 60204-1. This
function stops the drive by means of a quick stop along a deceleration ramp that must be
parameterized. The cabinet unit is then disconnected from the power supply via the line
contactor, while bypassing the electronics by means of a safety combination in accordance
with EN 60204-1.
The operating state and the function are indicated by five LEDs (-K120).
Note
Pressing the EMERGENCY OFF button
When the EMERGENCY OFF button is pressed, a controlled 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- 41 Terminal block X120 – connection for EMERGENCY STOP Category 1 (24 VDC)
Terminal Technical data
3 Loop-in EMERGENCY OFF button from line side,
remove jumper 3-6 and connect the button
6
7
"On" for monitored start:
Remove jumper 15–16 and connect the pushbutton
8
1)
NO: Normally-open contact
Max. connectable cross-section: 4 mm²
Setting
The time (0.5 to 30 s) set for the contactor safety combination (-K120) should be longer than
(or at least equal to) the time that the drive requires to reach a standstill via the quick stop
(OFF3 ramp-down time, p1135), as the inverter is disconnected from the power supply when
the time expires (at -K120).
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.