Siemens SITRANS WM300 MFA, Operating Instructions Manual

Page: 45 / 82

Parameter assignment
6.6 Tachometer Function
SITRANS WM300 MFA
Operating Instructions, 08/2018, A5E45090709-AA
45
6.6 Tachometer Function
6.6.1 Tachometer Function (P031 - P032)
Note
Only set this value if the Non-Contact Tachometer Function will be enabled.
The non-contact tachometer (analog output AQ1 and AQ2) function is for the standard
operating mode of the SITRANS WM300 MFA only. The setpoint default for non-contact
tachometer is set to a minimum of 16 Hz (4 to 20 mA); therefore, 1 Hz is equal to 1 mA.
Probe A 20 mA setpoint (P031) for analog output AQ1 when an NCT application is in use.
Probe B 20mA setpoint (P032) for analog output AQ2 when an NCT application is in use.
Enter the frequency representing maximum speed for analog output (20mA).
Note
P031 and P032 (Maximum Frequency = 20 mA) must be programmed prior to enabling the
Tachometer function. Failure to do so could result in the output set to maximum analog
output value.
● P031: xxx Hz
● P032: xxx Hz
Note
Value must be entered before enabling NCT function to properly manage analog outputs to
control functions.