Code Alarm F60 Installation Manual Page 144

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Start/Stop Control By Speed Reference Level
144 S1A53838 09/2011
Overview
Use parameters [Freq. pedestal] (F241) and [Freq. pedestal hyst.] (F242) to enable start/stop control of the
drive based on the speed reference level.
If the drive operates normally and has a run permissive signal, it will start powering the motor as soon as the
speed reference level exceeds the frequency set by F241 + F242 (point B in diagram below). It will remove
power from the motor as soon as the output frequency drops below the level set by F241F242 (point A
in diagram below).
0
A
B
100%
-
+
Output Frequency (Hz)
Speed Reference
Code Name / Description Adjustment range Factory
setting
F241 [Freq. pedestal] Operating starting frequency] 0.0 to [Max frequency] (FH) Hz 0.0 Hz
F242 [Freq. pedestal hyst.] Operating starting frequency hysteresis 0.0 to [Max frequency] (FH) Hz 0.0 Hz
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