Siemens sinamics G120 Operating Instructions Manual page 307

To use the function, you must connect the encoder to one of the digital inputs DI 24 ... DI 27
and connect the relevant digital input with the function in the inverter.
Image 6-61
When you use this monitoring function, you cannot use any of the digital inputs as setpoint
source.
Principle of operation
The inverter determines the speed deviation from the calculated speed r0586 and the speed
list value r2169. p2181 determines the response of the inverter if the deviation is excessive.
Image 6-62
Settings
Parameter
p0490
p0580
p0581
Converter with CU250S-2 Control Unit
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
Speed deviation monitoring
Pulse input as source of setpoint value (Page 213)
Time response of monitoring speed deviation
Description
Invert probe
Using the 3rd bit of the parameter value, invert the input signals of digital input 3
for the probe.
Probe Input terminal (factory setting 0)
1)
Connect input of probe with a digital input.
Probe Edge (factory setting 0)
1)
Edge for analyzing the probe signal for measuring speed list value
0: 0/1 edge
1: 1/0 edge
(factory setting 0000bin)
1)
Advanced commissioning
6.7 Application-specific functions
307