Control Techniques Digitax ST - Page 158

Menu 12
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Parameter x.00
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158 Digitax ST Advanced User Guide
www.controltechniques.com Issue Number: 1
The threshold detector compares the modulus of the source input value (defined by Pr 12.03, Pr 12.23), converted to a percentage of its maximum
value, with the threshold level (Pr 12.04, Pr 12.24). If the value is greater or equal to the threshold plus half the hysteresis band (Pr 12.05, Pr 12.25)
the output becomes active, or if the value is less than the threshold minus half the hysteresis band the output becomes inactive. The output may be
inverted if required by setting the invert flag (Pr 12.06, Pr 12.26). The result is routed to the destination (defined by Pr 12.07, Pr 12.27).
12.01 Threshold detector 1 output
12.02 Threshold detector 2 output
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Update rate 4ms x number of menu 9 or 12 functions active write
12.03 Threshold detector 1 source
12.23 Threshold detector 2 source
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
2 1111
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on reset
12.04 Threshold detector 1 level
12.24 Threshold detector 2 level
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
2 111
Range 0.00 to 100.00 %
Default 0.00
Update rate 4ms x number of menu 9 or 12 functions active read
12.05 Threshold detector 1 hysteresis
12.25 Threshold detector 2 hysteresis
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
2 111
Range 0.00 to 25.00 %
Default 0.00
Update rate 4ms x number of menu 9 or 12 functions active read
12.06 Threshold detector 1 output invert
12.26 Threshold detector 2 output invert
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Default 0
Update rate 4ms x number of menu 9 or 12 functions active read
12.07 Threshold detector 1 destination
12.27 Threshold detector 2 destination
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1 2 1111
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on reset