Limit Frequencies For Tm41 - Siemens SINAMICS S120 Function Manual

Zero mark synchronization process
● After the SINAMICS system has been powered up, the TM41 drive object requests the 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 TM41 receives this position after passing the zero position of 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.
● 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
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.
8.25.5

Limit frequencies for TM41

Maximum output frequencies for TM41
● Factory setting = 2048; selectable pulses per revolution (p0408) = 32 up to 16384
pulses / revolution;
● The limit frequencies specified in the tables below must not be exceeded.
The following table shows the maximum output frequency for Terminal Module 41 at 750 kHz
(p4401.7 = 0).
Table 8-10 Maximum output frequencies for TM41 = 750 kHz
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, 06/2019, 6SL3097-5AB00-0BP2
Output frequency f (p0418 < 17 bit)
max
Output frequency f (p0418 = 17 bit)
max
Output frequency f (p0418 = 18 bit)
max
Output frequency f
(for example p0408 = 1000), then
n
125 µs
31.25 Hz
1024 kHz
512 kHz
256 kHz
1024 kHz
max
Basic functions
8.25 Terminal Module 41
250 µs 500 µs
15.625 Hz 7.8125 Hz
512 kHz 256 kHz
256 kHz 128 kHz
128 kHz 64 kHz
512 kHz 256 kHz
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