8 alarm handling 26, Alarm handling 26 - 27, 8 alarm handling – West Control Solutions N8840 User Manual

Page 26: Ü operating principle absolute alarm l.1 = off, Operating principle relative alarm l.1 = off, H.1 = off

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3.8 Alarm handling

Max. three alarms can be configured and assigned to the individual outputs.

Generally, outputs OuT.1... OuT.6 can be used each for alarm signalling. If

more than one signal is linked to one output the signals are OR linked. Each of

the 3 limit values Lim.1 … Lim.3 has 2 trigger points H.x (Max) and L.x (Min),

which can be switched off individually (parameter = “OFF”). Switching

difference HYS.x and delay dEl.x of each limit value is adjustable.

1: normally closed ( ConF/ Out.x / O.Act=1 )
2: normally open ( ConF/ Out.x / O.Act= 0 )

Operation

Alarm handling

26

8840 profiler

H.1

LED

HYS.1

InL.1

InH.1

2

1

Ü Operating principle absolute alarm

L.1 = OFF

LED

HYS.1

H.1

InL.1

InH.1

SP

2

1

* Operating principle relative alarm

L.1 = OFF

L.1

LED

HYS.1

InL.1

InH.1

2

1

H.1 = OFF

L.1

LED

HYS.1

InL.1

InH.1

SP

2

1

H.1 = OFF

L.1

LED

LED

HYS.1

HYS.1

H.1

InL.1

InH.1

SP

2

2

1

L.1

LED

LED

HYS.1

HYS.1

H.1

InL.1

InH.1

2

2

1

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