BLEMO ER24 Series, Programming Manual

Page: 265 / 344

265
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 us ed if the "Puls e 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
s ignal that is proportional to the s peed of rotation of the m otor.
T
When applied to the "Puls e input" input, this s ignal s upports:
•
Meas urem 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 m eas 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 s peed 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 thres hold that can be adjus ted us ing
[Pulse warning thd.]
(FqL) page 102 and is
as s 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