Schmalz SMPi 20, Руководство по эксплуатации, Страница: 17 / 50

S
CHMALZ
SCP
I
/ SMP
I
3-17
Valve LEDs
The suction and blow-off valves are each assigned an LED.
LED LED state Ejector state
Suction valve
LED
is continuously lit
NO: No suction on ejector
NC: Suction on ejector
IMP: Suction on ejector
Blow-off valve
LED
is continuously lit
Ejector blows off
Monitoring of the valve switching frequency (valve protection function)
If the suction valve is triggered more than six times within three seconds by the air-saving
function, then the ejector is set to continuous suction (i.e. it remains in the “Venturi nozzle
active” state). The status display turns
RED
. This indicates the valve protection function.
This remains in place until the next suction cycle begins.
“D
IAGNOSTICS
”
SIGNAL OUTPUT
(OUT 1)
The following events activate the “Diagnostics” signal output (OUT 1):

H1 is never reached during the suction cycle

Suction valve activates > 6/3 s (valve protection function)
The “Diagnostics” signal output remains activated until the next suction cycle begins.