6.2 Procedure for an empty signal (Connexx Switch)
Empty signal for container 1 with switch-over to container 2 and subsequent empty signal
for container 2.
Status / action Control unit
Containers 1 and 2 full
Container 1 active
Level switch at the top
Pump operates
LL1 lights up green
LL2 off
Quit of
f
Pump Enable active
Container 1 empty
Level switch at the bottom
Injector solenoid valve opens " suction starts
Pump Enable timer starts (5 secs.)
Empty signal timer starts (X secs.)
Pump Enable cancelled " pump stops
Valve 1 closes, injector solenoid valve closes
V
alve 2 opens, container 2 active
Injector solenoid valve opens " suction starts
Pump Enable timer expired
Empty signal timer expired
LL1 flashes red (empty)
LL2 flashes green (active)
Quit off
Empty signal timer starts (X secs.)
Level switch at the top Pump Enable active
Container 1 is swapped:
Switch off alarm (buzzer) with the Quit button
Replace container 1
Acknowledge empty signal with LL1 button
LL1 off
Quit off
Alarm (buzzer) of
f
The control unit is now ready to switch from container 1 after the empty signal for container 2
Container 1 is not swapped:
Container 2 empty
Level switch at the bottom
Injector solenoid valve opens " suction starts
Pump Enable timer starts (5 secs.)
Empty signal timer starts (X secs.)
Pump Enable cancelled " pump stops
Valve 1 closes, injector solenoid valve closes
No automatic switchover to container 1 due to active
empty signal LL1
Pump Enable timer expired
Empty signal timer expired
LL1 flashes red
LL2 lights up green
Quit lights up red (collective alarm signal)
Alarm (buzzer) active
Switch of
f alarm (buzzer) with the Quit button
Replace container 1
Acknowledge empty signal with LL1 button
Injector solenoid valve opens " suction starts
Replace container 2
Acknowledge empty signal with LL2 button
Empty signal timer starts (X secs.)
LL1 flashes green (active)
LL2 Off (standby) Quit Of
f
Level switch at the top Pump Enable active
Commissioning and operation
36Rev. 1-06.2018
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