Emerson SP2401 - Menu 12: Threshold Detectors and Variable Selectors; Menu 12 Logic Diagram

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Unidrive SP Regen Installation Guide 165
Issue Number: 2 www.controltechniques.com
9.12 Menu 12: Threshold detectors and variable selectors
Menu 12 includes two threshold detectors which produce logic signals depending on the level of a variable value with respect to a threshold, and two
variable selectors which allow two input parameters to be selected or combined to produce a variable output. One menu 9 or one menu 12 function is
executed every 4ms. Therefore the sample time of these functions is 4ms x number of menu 9 and 12 functions active. A function is active if one or
more sources are routed to a valid parameter.
Figure 9-9 Menu 12 logic diagram
??.??
Any variable
parameter
??.??
12.03
Threshold
Detector 1
input source
12.04
Threshold
Detector 1
threshold level
Threshold
Detector 1
Th
res
h
o
ld
Detector 1
x(-1)
12.06
Threshold
Detector 1
output invert
12.01
Threshold
Detector 1
output indicator
12.05
Threshold
Detector 1
hysteresis
??.??
Any
unprotected
bit parameter
??.??
12.07
Threshold
Detector
output
destination
parameter
1
??.??
Any variable
parameter
??.??
12.23
Threshold
Detector 2
input source
12.24
Threshold
Detector 2
threshold level
Threshold
Detector 2
Threshold
Detector 2
x(-1)
12.26
Threshold
Detector 2
output invert
12.02
Threshold
Detector 2
output indicator
12.25
Threshold
Detector 2
hysteresis
??.??
??.??
12.27
Threshold
Detector
output
destination
parameter
2
All parameters are shown
at their default setting
0.XX
0.XX
Key
Read-write (RW)
parameter
Read-only (RO)
parameter
Input
terminals
Output
terminals
Hysteresis
Threshold
level
Threshold
output
t
t
Any
unprotected
bit parameter