Siemens SINAMICS G180 Installation And Operating Instructions Manual page 116

Operation
8.5 Special functions
Figure 8-28
Assumption: sensor produces four impulses per revolution for four-pole motor, nmax = 1500
rpm.
Note the following:
This speed is available for further processing as "Tacho act" from 0 rpm to 1500 rpm and as
"Pulse act" from 0 % to 100 %.
● Connection according to connection diagram. Inputs –X2:27 and –X2:29 can be freely used.
● Parameterize the following:
Select the following values for the respective parameters:
Table 8-10
Parameter
"P-PULSE INPUT/Mode"
"P-PULSE INPUT/Max.plse."
"P-PULSE INPUT/Pulses/360"
Set the following parameters if a frequency value is needed for the further processing:
Table 8-11
Parameter
"P-PULSE INPUT/Mode"
"P-PULSE INPUT/Max.plse."
"P-PULSE INPUT/Pulses/360"
The frequency is available for further processing as "Freq.act." from 0 Hz to 100 Hz and as
"Pulse act" from 0 % to 100 %.
NPN sensors cannot be used.
114
NAMUR speed sensor
Bit "X2:28" is permanently set to 0, "PTC X2:28" is permanently set to 1.
– At f ≠ 20 kHz: 1500 rpm / 60 s × 4 pulses = 100 Hz.
parameter setting for speed sensor
parameter setting for speed sensor with frequency value
Value
"Tacho 1-track"
"1500 rpm"
"4"
Value
"f < 20 kHz"
"100 Hz"
"4"
Installation and operating instructions Sinamics G180
Operating Instructions, 05/2013, 4BS0751-001