Operating instructions

Appendix
Operating instructions 22012836B 09/08 45
IND690-Fill
NOZZLE CONTROL ON and DRIP PAN ON
The following sequence chart shows the assigned inputs and outputs of the second
8-690 relay box.
The first 8-690 relay box is assigned in accordance with the flow chart "NOZZLE
CONTROL OFF and DRIP PAN OFF", with the exception of the sequence monitoring for
the nozzle (IN1, IN2).
6.2.2 Below-bunghole application
The same sequence charts apply to the below-bunghole application as for the below-
level application, however the middle end position is moved to instead of the bottom
end position.
OUT1 OUT2 OUT3 OUT4 OUT5 IN1 IN2 IN3 IN4
Nozzle
down
Nozzle
up
Drip pan
forward
Nozzle
on
Correct
nozzle
Nozzle
up
Nozzle
down
Nozzle
middle
Drip pan
back
Basic position: nozzle up and drip pan at
front
Start of dispensing: drip pan moves back
Drip-pan limit switch reached: nozzle
moves down
Lower limit switch reached: nozzle stops,
weighing platform is tared, dispensing
procedure starts
While coarse or fine feed is switched on:
correct nozzle
Limit 2 reached: nozzle moves up
Middle position of nozzle: evaluation or
refilling
Nozzle moves back to upper end position
Nozzle up: drip pan moves forward again
Basic position: nozzle up and drip pan at
front
Ready for next dispensing