Frequency Inverter DF51... - Moeller.com.tr

04/07 AWB8230-1541GB Reference and control signalinputsAnalog input, filter time constant (PNU A016)The filter in the analog input (O, OI) suppresses interference toincrease the stability of the output frequency (f 2 ). Reference signala is scanned and evaluated in a so-called dead band range c.You can set the scan rate and therefore the dead band durationwith PNU A016:1…16 = 1…16 scans8 = Default settings, 8 scans17 = 16 scan cycles and the non-observation of minor fluctuationsin the range of +0.1 Hz to –0.2 Hz relative to the set outputvalue, e.g. 0…10 V = 0…50 Hz.hHigh scanning rates delay the response behaviour after areference value change.ab+ 0.1 Hz– 0.2 Hzdf 2cetFigure 83: Scanning behaviour at PNU A016 = 17a Analog reference signal with faultsb Increase in reference valuec Dead band ranged Change of output value (f 2 )e New dead band range83