Endress+Hauser Prosonic S FMU90 - Page 93

The "Relay/Controls" menu
93
8.3.9 "relay N" (N = 1 - 6)
"function"
Allocates the desired function to the relay.
Selection:
• none (default)
•pump M/control N
"invert"
Determines if the switching behavior of the relay is inverted.
Selection:
• no (default)
The switching behavior of the relay is not inverted. The relay is energized if the pump should be
switched on.
• yes
The switching behavior of the relay is inverted. The relay is energized if the pump should be
switched off.
8.3.10 "pump control N" (N = 1 or 2)
(Switching points for rate control)
"switch on point"
Specifies the switch-on point. Use the selected level unit.
"
Caution!
After a change of the "unit level", the switch on point has to be checked and adjusted if required.
"switch off point"
Specifies the switch-off point. Use the selected level unit.
"
Caution!
After a change of the "unit level", the switch off point has to be checked and adjusted if required.
"min pump rate"
Specifies the desired minimum pump rate (for details see section "limit control and rate control").
!
Note!
If the vessel is to be emptied, a negative pump rate has to specified.
⇒
relay N RN306
function:
invert:
⇒
pump control R13A3
switch on point:
switch off point:
min pump rate:
alternate: