Zero Mark Tolerance - Siemens SINAMICS S120 Function Manual

Evaluating messages
All of the track monitoring functions can be individually evaluated. You can use both HTL as
well as TTL encoders.
If a fault is detected, then fault F3x117
value bit-coded.
Note
For modules CU310-2, CUA32, D410-2 and SMC30 (only order numbers
6SL3055-0AA00-5CA0 and 6SL3055-0AA00-5CA1) there is only a general signal. If you
connect a square-wave encoder without R track to one of these modules, then if track
monitoring is activated, fault F3x117
To avoid this fault, at the encoder connection, you must connect the "ground encoder
supply" (pin 7) with the "reference signal R" (pin 10), as well as the "encoder supply" (pin 4)
with the "inverse reference signal R" (pin 11).
x = encoder number (x = 1, 2 or 3)
1)
6.19.2

Zero mark tolerance

This function allows individual faults to be tolerated regarding the number of encoder pulses
between two zero marks.
Commissioning
1. Set parameter p0430.21 = 1 to activate the "zero mark tolerance" function.
Sequence
The function runs as follows:
1. The "zero mark tolerance" function starts to become effective after the 2nd zero mark has
2. After this, if the number of track pulses between two zero marks does not match the
3. The alarms are cleared if the next zero mark is received at the correct position.
4. However, if a new zero mark position error is identified, fault F3x100
x = encoder number (x = 1, 2 or 3)
1)
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
been detected.
configured number of pulses once, then alarms A3x400
distance error) or A3x401
distance error) or Fx3101
is output. The faulty tracks are included in the fault
1)
is output.
1)
(alarm threshold, zero mark failed) is output.
1)
(zero mark failed) is output.
1)
Basic functions
6.19 Tolerant encoder monitoring
(alarm threshold, zero mark
1)
(zero mark
1)
325