Lenze E84DSxxx - Manual (Page 784)

17 Function library
17.1 Function blocks | L_Transient_1
784
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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17.1.43.1 Function 0: Evaluate rising signal edges
[17-23] Switching performance for function selection "0: High edge"
Functional sequence
1. A FALSE-TRUE edge at the bIn input sets the bOut output to TRUE.
2. After the parameterised pulse duration has elapsed, the bOut output is reset to FALSE unless
another FALSE/TRUE edge has been set at the bIn input.
• If an additional FALSE-TRUE edge occurs at the bIn input, the pulse duration starts again from
the beginning, i.e. the bOut output can be retriggered.
17.1.43.2 Function 1: Evaluate falling signal edges
[17-24] Switching performance for function selection "1: Low edge"
Functional sequence
1. A TRUE-FALSE edge at the bIn inputs sets the bOut output to TRUE.
2. After the parameterised pulse duration has elapsed, the bOut output is reset to FALSE unless
another TRUE/FALSE edge has been set at the bIn input.
• If an additional TRUE-FALSE edge occurs at the bIn input, the pulse duration starts again from
the beginning, i.e. the bOut output can be retriggered.
 Pulse duration
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
Œ Œ Œ
 Pulse duration
TRUE
FALSE
bOut
t
TRUE
FALSE
bIn
t
Œ Œ Œ