Terminal Module 41 (Tm41) - Siemens SINAMICS S120 Function Manual

Basic functions

6.18 Terminal Module 41 (TM41)

6.18 Terminal Module 41 (TM41)
Features
● General
● Pulse encoder emulation by presetting of a speed value (p4400 = 0)
● Pulse encoder emulation by presetting of an encoder position actual value (p4400 = 1)
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– Pulse encoder emulation, TTL signals (RS422)
– 1 analog input
– 4 digital inputs
– 4 bidirectional digital inputs/outputs
– Automatic adjustment of the sampling time for encoder emulation 4099[3]
– Settable pulse number (p0408)
– Settable fine resolution (p0418, 2 ... 18 bit)
– Enable zero marks (p4401.0)
– 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)
– Deadtime compensation (p4421)
– Connector input p4420 should preferably be interconnected with signal source r0479
(diagnostics encoder position actual value Gn_XIST1). Parameter r0482 must not be
used as signal source.
– No gear ratio/reduction between the encoder to be emulated and the associated TM41
is supported.
– The pulse number and fine resolution setting of the TM41 must match that of the
encoder so that the zero marks of TM41 and encoder are synchronized.
– Only one Encoder Data Set (EDS) can be applied to exactly one TM41.
If the same EDS is applied to another TM41, it is possible to emulate only the position
actual value but not the zero mark position.
– A TM41 cannot emulate the zero mark position or the position actual value of another
TM41.
– A TM41 cannot use external zero marks for the encoders to be emulated.
– When an absolute encoder is emulated, the TM41 can only emulate the encoder
actual position of the absolute encoder. In this case, the zero mark on the TM41 is
output once per encoder revolution of the TM41. The zero mark does not correspond
to the zero position of the absolute encoder but will have a different position at each
POWER ON. It can only be used to detect a movement of the absolute encoder. If
required, the output of the zero mark can be disabled via p4401.0 = 0.
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Drive functions