Menu 12 Introduction Parameter x.00
Parameter
description format
Keypad and
display
CT Modbus
RTU
User
programming
CT Soft Menu 0
Advanced parameter
descriptions
130 Commander SK Advanced User Guide
www.controltechniques.com Issue Number: 2
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. A function is active if one or more
sources are routed to a valid parameter.
These parameters indicate whether the threshold input variable is above (1) or below (0) the programmed threshold.
This parameter and Pr 12.23 define the parameter to be input to the programmable threshold.
The absolute value of the source variable is taken as input to the threshold comparator. Only non-bit parameters can be programmed as a source. If
a non valid parameter is programmed the input value is taken as 0.
This parameter and Pr 12.24 are the user defined threshold levels entered as a percentage of the source maximum.
This parameter and Pr 12.25 define the band within which no change will occur on the output.
The upper limit for switching is:Level + Hysteresis/2
The lower limit for switching is:Level - Hysteresis/2
This parameter and Pr 12.26 are used to invert the logic states of the threshold output if required.
This parameter and Pr 12.27 define the parameter which is to be controlled by the threshold parameter. Only bit parameters which are not protected
can be set up as a destination. If a non valid parameter is programmed the output is not routed anywhere.
12.01 Threshold detector 1 output indicator
12.02 Threshold detector 2 output indicator
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 111
Range 0 or 1
Update rate 21 ms
12.03 Threshold detector 1 source
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 111
Range Pr 0.01 to Pr 21.51
Update rate Read on drive reset
12.04 Threshold detector 1 level
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Range 0.0 to 100.0 %
Update rate 21 ms
12.05 Threshold detector 1 hysteresis
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Range 0.0 to 25.0 %
Default 0.0
Update rate 21 ms
12.06 Threshold detector 1 output invert
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 or 1
Default 0
Update rate 21 ms
12.07 Threshold detector 1 destination
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 2 1111
Range Pr 1.01 to Pr 21.51
Default Pr 0.00
Update rate Read on drive reset
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