Datalogic SG4-RB2-050-OO-W, Instruction Manual

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36
6.5 EDM FUNCTION
The light curtain has a function for monitoring actuation external devices (EDM). This function can be
enabled or deactivated by dip-switches of RX device (see section 5
– “ELECTRICAL CONNECTIONS AND
CONFIGURATION
”).
The timing diagram below explains the relationship between the cause (OSSDs) and the effect (EDM), with
the maximum permissible delay.
Tc To
OSSDs STATUS
EDM
NORMAL
OPERATION
SAFE
24Vdc
0Vdc
Figure 34
T
c
≤
350 msec time after the OSSD OFF-ON passage when EDM is carried-out;
T
0
≤
100 msec time after the OSSD ON-OFF passage when EDM is carried-out.
(two different times for the mechanical contact driven by a spring).
6.5.1 SG4-
RB…-W Models EDM Connection
EDM deactivated:
Disconnect or connect to 0V EDM input pin of RX connector.
EDM enabled:
Connect EDM input pin of RX connector (see section 5
– “ELECTRICAL CONNECTIONS AND
CONFIGURATION
”) to a 24 VDC normally closed contacts of the device to be monitored (see Figure 35).
Note: The decimal dot on the display shows that the function is enabled.
Figure 35
– Connection of EDM (for SG4-RB…-W models)
The function controls the NC contact switching according to the changes of the OSSD status.