Tolerance Band Pulse Number" Monitoring - Siemens SINAMICS S120 Function Manual

Basic functions
6.19 Tolerant encoder monitoring
Note
When the function "Commutation with zero mark" (p0404.15 = 1) is activated, then the
system waits until fine synchronization has been completed before making a correction
(r1992.8 = 1).
The pole position for the commutation is also corrected. To do this, you do not have to
activate pole position adaptation (p0430.22 = 1).
This function does not make any corrections in the speed sensing.
2. Using p4686, set the minimum zero mark length. With a factory setting of 1, it is
3. Zero mark deviations of less than the minimum zero mark length (p4686) are not
4. A permanently failed zero mark is indicated using the fault F3x101 "Encoder x: Zero mark
6.19.8

"Tolerance band pulse number" monitoring

This function monitors the number of encoder pulses between two zero marks. An alarm is
output if the number lies outside a tolerance band that can be selected.
Commissioning
1. Set parameter p0437.2 = 1 to activate the monitoring.
2. Using parameters p4683 and p4684, set the upper and the lower limits of the tolerance
330
If the deviation exceeds the tolerance window size, fault F3x131
prevented that EMC faults result in a zero mark error.
Shorter zero marks are only suppressed when "Zero mark edge detection" is
parameterized (p0437.1 = 1).
corrected.
failed" or the alarm A3x401
1)
x = encoder number (x = 1, 2 or 3)
1)
band. Within this tolerance band, the detected number of pulses is considered to be
correct.
"Alarm threshold zero mark failed".
1)
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
is output.
1)
Drive functions