Siemens SINUMERIK ONE NCU 1740 Equipment Manual page 79

The enables for the drive units and/or motors (Line Module, Motor Module) connected to the
NCU can be switched using the digital inputs.
Note
Terminal assignments
When commissioning the drive wizard, the digital inputs/outputs are correspondingly
preassigned functions.
For more information about terminal assignment, see:
• System Manual Guidelines for the Machine Configuration
Access to digital inputs/outputs
Note
The digital inputs/outputs of drive terminals X122 and X132 are updated in accordance with the
set PROFIBUS bus clock cycle of SINAMICS Integrated.
Note
If the DI/DQ interfaces X122, X132 and X142 are operated partially as DI and partially as DQ
(mixed operation), then the DI must be operated with the same power supply as the NCU
module power supply X124.
Pin assignment
Table 8-18
Pin
1
2
3
NCU 1740
Equipment Manual, 10/2021, A5E51087503B AA
X122 digital inputs/outputs
Signal Signal Meaning
name type
DI0 I Digital input 0
Input ON/OFF1 infeed (if one infeed with a DRIVE-CLiQ
connection is operated at the NCU)
DI1 I Digital input 1
Input 2. Operating condition OFF3 drives
"OFF3 – rapid stop"
Braking with a configurable OFF3 ramp (p1135, p1136,
p1137); thereafter, pulse suppression and switching on
inhibited. The drive stops controlled. The braking re‐
sponse can be set separately for each SERVO.
DI2 I Digital input 2
Selection safe standstill group 1
SH/SBC - Group 1 SINAMICS Safety Integrated (SH =
p9601 release)
Connecting
8.10 Digital inputs/outputs
Default set‐
ting
x
x
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