Configuration Mode (ConF)
Use of the "Pulse input" input to measure the speed of rotation of the motor
This function us es the "Puls e input" input and can only be used if the "Pulse input" input is not being us ed for
another function.
Example of use
An indexed dis k driven by the m otor and connected to a proxim ity s ensor can be used to generate a frequency
signal that is proportional to the s peed of rotation of the m otor.
T
When applied to the "Pulse input" input, this s ignal s upports:
•
Measurem ent and display of the m otor speed: signal frequency = 1/T. This frequency is displayed by m eans
of the
[Pulse in. work. freq.]
(FqS) param eter, page 50.
•
Overs peed detection (if the meas ured speed exceeds a pres et thres hold, the drive will trigger an error).
•
Brake failure detection, if brake logic control has been configured: If the speed does not drop s ufficiently
quickly following a com mand to engage the brake, the drive will trigger an error. This function can be us ed
to detect worn brake linings.
•
Detection of a s peed threshold that can be adjus ted us ing
[Pulse warning thd.]
(FqL) page 102 and is
ass ignable to a relay or logic output, s ee page 138.
Parameters described in this page can be accessed by:
DRI- > CONF > FULL > FLT- > FQF-
Time, in seconds
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