Summary Of The Input Signals - Siemens SINAMICS S120 Manual

SINAMICS S120 Fail-Safe Drives
The motors rotate in opposite directions.
When button –S8 is pressed, the drives receive a higher setpoint - inde-
pendent of the position of the safety door. For drive 1, n=1000 rpm and for
drive 2, n=666 rpm. When the safety door is open, then an SLS limited
value is violated and the drive involved is stopped using an internal SS2
(Stop C), and for n=0 rpm is brought into SOS. In order to continue to oper-
ate the drive, the alarm, initiated by the internal SS2 (Stop C) as well as the
"Internal Event" message signal in the TM54F must be acknowledged using
the –S4 reset button.
5.2

Summary of the input signals

Digital inputs of the CU320
Digital input CU320
DI0
ON/OFF1 (1 signal, positive signal
DI1
edge) and stopping (0 signal) (switch –
S6)
Acknowledgement of the SINAMICS
DI2
fault messages (1 signal, pushbutton –
S7)
A higher setpoint speed is entered
DI3
(1 signal, pushbutton –S8)
I DT Safety Integrated
–
Both drives are started
The SINAMICS fault messages are
acknowledged at all of the drive
objects
A high setpoint speed is entered; this
is used to violate the SLS limit as
simulation (1 signal)
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Entry ID: 28424136
MC-FE-I-005-V11-EN