The "relays/controls" menu
103
"pump M/control N" (M = 1 - 6, N = 1 or 2)
(Part 2: Switching behavior for limit control)
"backlash interval" and "backlash time"
Use these parameters if you want to empty a vessel beyond the switch-off point in regular intervals.
The "backlash interval" determines after which time this extended pumping will occur.
The "backlash time" determines how long this additional pumping lasts.
L00-FMU90xxx-19-00-00-yy-057
A: switch-on point; B: switch-off point; C: pump on; D: pump off
E: backlash interval; F: backlash time
"error handling"
This parameter defines the reaction of the relay in the case of an error.
Selection:
• hold (default)
The current switching state of the relay is held.
• switch on
The relay is energized (i.e. the pump is switched on).
• switch off
The relay is de-energized (i.e. the pump is switched off).
• actual value
The relay switches according to the current measuring value (although its reliability is not
ensured).
⇒
pumpM/controlN RN304
backl. interval:
backlash time:
error handling:
t
t
L
A
B
C
D
EF
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