84 13. Programming – Programming Manual
Type selection: use to highlight the involved field, press or to view the
desired value, then to confirm.
13.3.4.
Programming asymmetric filter on vibration signal
Page A5 of the “Programming” folder menu map (section 8.2, page 3).
From the page for programming tolerance limit values, press function key F4, or
to highlight , and press .
Asymmetric filter on vibration signal that opportunely stabilizes the vibration value
read on display.
The vibration value is filtered in all the operating modes, but always and only out of
the balancing cycle.
T1 Increase time. The programmed value represents the filter response time to a
sudden increase of vibration.
This datum can be programmed with values within 0.01s and 10.00s with 0.01s
resolution. The value programmed by default is T1 = 9,99 seconds.
T2 Decrease time. The programmed value represents the filter response time to a
sudden decrease of vibration.
This datum can be programmed with values within 0.01s and 10. with 0.01s
resolution. The value programmed by default is T2 = 0,01 seconds.
Values programming: press to highlight the involved field, press or to
view the desired value, then to confirm.
Note: When not stable vibration amplitude is present (the displayed
measurement oscillates) the value of filters T1 and T2 must be
programmed accordingly to the oscillation frequency: the slower is the
oscillation (low frequency), the higher must be T1 and T2 values.
Example 1: oscillation of 0.6 – 0.8 µm / frequency of 0.5 – 1 Hz
T1 = T2 = 5 sec
Example 2: vibration peaks of 3 µm lasting 1-5 seconds
T1 = 10 sec / T2 = 3 sec
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