Limit Frequencies For Tm41 - Siemens SINAMICS S120 Function Manual

Layout of the synchronization:
● After the SINAMICS system has been powered up, the TM41 drive object requests the
● The TM41 receives this position after passing the zero position of the leading encoder.
● After successful synchronization, the zero mark is output at the zero positions.
Detecting the zero mark position for new synchronization
If the number of encoder pulses has not been set equal to 2
then after the higher-level controller has been reset, it is possible that the position of the next
zero mark cannot be determined from the actual position value xACT1 signaled from the
TM41. For this situation, the control can query the position of the next zero mark from
parameter r4427 using an acyclic read request.
7.23.5

Limit frequencies for TM41

● Adjustable pulse number (p0408): 32 to 16384 pulses/revolution (factory setting = 2048)
● The maximum pulse frequencies (limit frequencies) specified in the tables below must not
Table 7- 13 Maximum output frequencies for TM41 = 750 kHz (p4401.7 = 0)
Higher setpoint resolution not activated (p4401.5 = 0)
Sampling time p4099[3]
Resolution
SINAMICS mode
p4400 = 1
SIMOTION mode
p4400 = 0
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
zero position of the leading encoder via the encoder interface. The encoder emulation
follows the movements of the leading encoder and outputs the track signals A/B. At this
point in time, no zero mark is output. The edges of the A track are still not in synchronism
with the leading encoder.
The output of the track signals is now corrected in such a way that the positive edge of
the A track is in synchronism with the zero position.
be exceeded.
Output frequency f
Output frequency f
max
Output frequency f
max
Output frequency f
(p0418 < 17 bit)
max
(p0418 = 17 bit)
(p0418 = 18 bit)
max
7.23 Terminal Module 41
(for example p0408 = 1000),
n
125 µs 250 µs
31.25 Hz 15.625 Hz
1024 kHz 512 kHz
512 kHz 256 kHz
256 kHz 128 kHz
1024 kHz 512 kHz
Basic functions
500 µs
7.8125 Hz
256 kHz
128 kHz
64 kHz
256 kHz
369