Control Techniques Digitax ST Advanced User's Manual page 158

Parameter
Menu 12
structure
12.01 Threshold detector 1 output
12.02 Threshold detector 2 output
Bit SP
Coding
1
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
Bit SP
Coding
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
Bit SP
Coding
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
Bit SP
Coding
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
Bit SP
Coding
1
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
Bit SP
Coding
Range Pr 0.00 to Pr 21.51
Default Pr 0.00
Update rate Read on reset
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).
158
Keypad and
Parameter x.00
display
FI DE Txt VM DP ND
1
FI DE Txt VM DP ND
2
FI DE Txt VM DP ND
2
FI DE Txt VM DP ND
2
FI DE Txt VM DP ND
FI DE Txt VM DP ND
1 2
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Parameter Advanced parameter
description format descriptions
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1
RA NC NV PT US RW BU
1 1 1
Serial comms Electronic
protocol nameplate
PS
PS
1
PS
1
PS
1
PS
PS
1
Digitax ST Advanced User Guide
Issue Number: 1
Performance