Sinamics Mode - Siemens SINAMICS S120 Function Manual

Basic functions
6.23 Terminal Module 41
Figure 6-18
Special features
● PROFIdrive telegram 3
● Own control word (r0898)
● Own status word (r0899)
● Sequence control (refer to function diagram 9682)
● Settable zero mark position (p4426)
● Operating display (r0002)
6.23.2

SINAMICS mode

The SINAMICS mode is set using parameter p4400 = 1. The incremental encoder emulation
is based on the encoder actual position value of the leading encoder.
The actual position values of the leading encoder (r0479) are interconnected to the Terminal
Module 41 via a connector input (p4420). This means that the actual position values at the
TM41 are available as pulse encoder emulation - including the zero mark. The signals of the
pulse encoder emulation appear just like the signals of a TTL encoder - and can be
processed by a controller. This allows a higher-level controller without PROFIBUS to
emulate the position controller. The speed setpoint is transferred to the drive at the analog
input of the TM41 via the analog output of the control system (see example, TM41).
Note
Connector input p4420 should be interconnected with the signal source r0479 (diagnostics
encoder actual position value Gn_XIST1). The value is updated with each DRIVE-CLiQ base
cycle, and displayed with the correct sign. Parameter r0482 cannot be used as a signal
source.
The TM41 supports a step-up/step-down ratio between the output signal of the leading
encoder and the output signal of the TM41. The number of encoder pulses per revolution of
the leading encoder is set using p4408. The fine interpolation is set with p4418. The pulse
number of the TM41 encoder emulation is set using p0408. The fine resolution can be set
with p0418.
352
Function diagram encoder emulation
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions