Operation Via Digital Inputs - Siemens SINAMICS G110M Manual

4 Operating the Application

4.2 Operation via digital inputs

4.2 Operation via digital inputs
For security reasons, the SINAMICS drives in this application example are
exclusively moved via digital inputs, the HMI is only used for monitoring
Table 4-1: Digital inputs
Terminal
I 0.0
I 0.1
I 0.2
I 0.3
I 0.4
I 0.5
I 0.6
I 0.7
To switch on the SINAMICS drive, please perform the steps below:
Table 4-2: Instruction – Switch on the SINAMICS drive
Step
1.
2.
3.
4.
5.
6.
5
If you still wish to control the drive from the HMI control device, you need to leave the input
parameters "control_word" and "setpoint" of the Process_Data [FB11] when calling it in
network 2 of the Main [OB1].
SINAMICS G120 DP at S7-1200
Entry-ID: 70155469, V1.4,
Name
On Switching the SINAMICS drive on/off,
(Off2 =1 and Off3 =1 must apply for the operation)
Off 2 0 = Immediately switching off the motor. The SINAMICS drive
coasts.
Off 3 0 = Fast stop. The motor is decelerated with ramp-down time Off3
(P1135) until it stops
Ack A rising edge acknowledges a pending error in the SINAMICS drive
Rev Reversed direction, the polarity of the setpoint value is negated.
0 The setpoint is set to 0.
n+ The setpoint is increased
n- The setpoint is decreased
Action
Apply 24V to "Off2" (I 0.1) and
"OFF3" (I 0.2).
Enter a pulse (switching on and
back off) to "Ack" (I 0.3).
Enter a pulse (switching on and
back off) to "0" (I 0.5).
Apply 24V to "On" (I 0.0).
Change the setpoint value with
inputs "n+" (I 0.6), "n-" (I 0.7) and
"0" (I 0.5).
Remove the 24V from "On" (I 0.0).
07/2018
Function
Note / Result
The further required control bits for the
operation are permanently set to 1 by
the program.
This acknowledges a possibly pending
error message.
The setpoint is set to 0.
The SINAMICS drive switches on.
The speed of the motor changes.
The SINAMICS drive switches back off
and the motor is shut down with the
configured ramp-down time.
5
.
20