Product Description
10 / 26
EN-US · 30.30.01.02107 · 00 · 07/19
•
In the NC (normally closed) variant, the venturi nozzle is activated when the suction signal is re-
ceived.
An integrated sensor records the vacuum generated by the venturi nozzle. The exact vacuum value is
shown on the display.
The diagram below shows the vacuum curve for when the air saving function is activated:
Vacuum
[mbar]
Vacuum on
Time [s]
SP1
SP2
rP1
rP2
The ejector has an integrated air saving function and automatically regulates the vacuum in suction
mode:
•
The electronics switch the venturi nozzle off as soon as the vacuum limit value set for switching
point SP1 is reached.
•
When objects with airtight surfaces are picked up, the integrated non-return valve prevents the vac-
uum from dropping.
•
If leaks cause the system vacuum to drop below the limit value configured for the switching point
rP1, the venturi nozzle is switched back on.
3.2.2 Depositing the Workpiece/Part (Blowing Off)
In blow off mode, the vacuum circuit of the ejector is supplied with compressed air. This ensures that the
vacuum drops quickly, allowing the workpiece to be quickly deposited.
During blow off, [
-FF
] is shown on the display.
The ejector provides two blow off modes for selection:
•
Externally controlled blow off
•
Internally time-controlled blow off
3.3 Variants and product keys
The item designation of the SCTM is composed of a product key, which indicates the number of ejectors
installed and their exact properties.
The SCTM product key (so-called system configuration), e.g. SCTMc-MP-6-XY-2AAF-2AB0-2AAH, is com-
posed as follows:
Feature
Variants
Comment
Product class
SCTM terminal with c-ejectors
Basic: b
Controlled: c
—
