Siemens SINAMICS DCM Betriebsanleitung Seite 527

When the EMERGENCY STOP button is pressed, the quick stop function is initiated at the
drive (OFF3 via terminal X71-15 (DI/DO 4)). As a consequence, the speed is reduced
corresponding to the down ramp defined using parameters p50296, p50297 and p50298.
The time delay to be set at safety relay 3TK2827 to interrupt the energy feed must be equal
to or greater than this down ramp. After the time delay has expired, the E-STOP function is
initiated at the drive (terminals XS1-105, -106). At the same time, the armature contactor and
the field contactor are directly opened via the 3TK2830 expansion device.
Connection
Table 11- 4
Terminal
21
22
23
24
25
26
Max. connectable cross-section: 2.5 mm²
No safety isolation
The circuits available at terminal strip -X2, terminal numbers 21 to 26, do not comply with
safety isolation according to the requirements for protection against electric shock
according to EN 61800-5-1.
Commissioning
See also paragraph "Function"
● Set the OFF3 ramp-down times (p50296, p50297, p50298)
● Set the safety relay delay time (factory setting = 30 s)
● Check the functionality in all of the used command data sets (CDS) and drive data sets
(DDS)
● Document all of the settings
Parameter assignment
Regardless of the combination of the selected options, when selecting option L59 for the
OFF3 function (quick stop), binary input DI/DO 4 (terminal X71.15) on the customer terminal
strip (TMC) of the drive cabinet is always used.
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Terminal block -X2 - additional connections for EMERGENCY STOP
Designation
External reset
External reset
Button, channel 1
Button, channel 1
Button, channel 2
Button, channel 2
WARNING
Technical data
24 V DC
External reset (NO contact)
24 V DC
EMERGENCY OFF button, two channels
Options
11.3 OFF functions
215