Pulse/Direction Interface - Siemens SINAMICS S120 Function Manual

Basic functions

8.28 Pulse/direction interface

8.28 Pulse/direction interface
Function description
Thanks to the pulse/direction interface, in the Servo and Vector control modes,
SINAMICS S120 can be used for simple positioning tasks on a controller.
● The encoder interface of the SMC30 (connector X521) is used to connect the controller to
the CU320-2.
● The internal encoder interface at connector X23 is used to connect the controller to the
CU310-2.
The controller enters the setpoints for the pulse/direction signals to the drive via the encoder
interface.
The specified actual speed value r0061 can then be connected as speed setpoint to the fixed
setpoint p1155 via BICO.
Note
● More information on the Control Unit CU320-2 and the SMC30 is provided in the SINAMICS
S120 Control Units Manual.
● More information on the Control Unit CU310-2 is provided in the SINAMICS S120 AC Drive
Manual.
Commissioning the function
Carry out the following steps to configure the function:
SMC30: Wiring input signals
The input signals for the pulse/direction interface are wired via connector X521 of the SMC30:
Table 8-12
Pin
1
2
3
4
5 ... 8
416
Wiring the SMC30
Signal name
of pulses
M
Direction of rotation
M
Not relevant
Technical data
–
Ground
–
Ground
–
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions