Special function number 3 is an extension of the speed monitor and measurement function. It enables the counting and measurement channel to:
-
monitor the
correct speed, corresponding to the boolean function:
-
and detect a
stationary moving part, which corresponds to the following boolean function:
Tolerance on the X% speed is a configuration parameter completed by the user.
The
Target speed (%MDr.m.c.24) and the
Stop speed (%MWr.m.c.26) are adjustment parameters set by the application program using a
WRITE_PARAM (IODDT_VAR1) or a variables animation table in online mode.
The time diagram below shows the principle of special function number 3.
(1)
Significant zone, no other zone for correct speed or stationary moving part is significant.
Correct speed (%Ir.m.c.16) and Moving part stationary (%Ir.m.c.17) information is only significant for speed plateaus. Managing the relevance of this information is the responsibility of the application program.
