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Safety function blocks
394
02/16 MN05013001Z EN
LC, light curtain
The light curtain function block is used for the safety-related
monitoring of two-channel light curtains. These light
curtains are used for example for:
• protection of hazardous locations.
• protection of hazardous areas.
• access protection.
easySafety allows the monitoring of up to 7 electro-
s
ensitive
p
rotective
e
quipment (ESPE) devices.
Function block
Figure 199:
"Light curtain" function block
a
Coils LC..I1 and LC..I2: OSSD (Output Signal Switching Device)
monitoring, channels 1 and 2.
Use only in safety circuit diagram.
b
Coil LC..RE: Reset of the function block to Manual Start (MST)
and Controlled Start (CST) modes and starting of normal oper-
ation.
Use only in the safety circuit diagram.
c
Coil LC..EN: Selective activation or deactivation of the function
block function (optional).
Use either in the safety or standard circuit diagram.
I1
I2
RE
EN
>DT
QS
ER
DG:
QV:
LC...
Light Curtain
DW
a
b
c
d
e
f
g
h
Содержание easySafety
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