Endress+Hauser Prosonic S FMU90 - Switch Delay; Invert; Actual Value

The "relays/controls" menu
80
5.1.11 "relay N (N = 1 - 6)"
(Relay behavior)
"switch delay" (only available for limit relays)
Use this parameter to specify the switch delay (in seconds).
The relay does not switch immediately after the switch-on point has been exceeded but only after
the specified delay.
The measured value must exceed the switch-on point during the entire delay time.
"invert"
Use this parameter to specify if the switching direction of the relay is to be inverted.
Selection:
• no (default)
The switching direction of the relay is not inverted. The relay switches as described in the above
sections.
• yes
The switching direction of the relay is inverted. The states "energized" and "de-energized" are
interchanged.
"error handling" (not available for alarm and diagnostic relays)
Use this parameter to specify the reaction of the relay in the case of an error.
Selection:
• actual value
The relay switches according the the currently measured value (although its reliability is not
ensured).
• hold (default)
– Limit relay: The current switching state of the relay is maintained.
– Counting pulse relay: The counter uses the flow value which was present when the error
occurred.
• switch on
(only available for limit relays)
The relay is energized.
• switch off
(only available for limit relays)
The relay is de-energized.
• stop
(only available for counting pulse and time pulse relays)
No pulses are generated as long as the error is present.
⇒
relay X RX104
switch delay:
invert:
error handling: