KEYENCE SL-V Series - Manual (Page 30)

2-6
Fu
nct
ion
s and
Feat
ures
2
SL-V-M-NO2-E
2-3
Series Connection
Up to three SL-V units can be serially connected and used as a single light curtain. Use the series con-
nection cables that KEYENCE provides as an optional part. (
See "Series connection cable" (page 1-6))
Example of use with 3 units in series connection

Benefits
• Prevents the light interference between the connected SL-Vs
• Simplified wiring because the wiring for OSSD or synchronization cable
• Combining the SL-VF (M), SL-VH (M) and the SL-VL (M) is allowable in series connections even though
they have different respective detection capabilities.

Limitations
• Up to 3 units
• Up to 240 total number of beam axes
• The length of one series connection cable must be 10 m or less. When connecting three units in series,
the total length of two cables must be 20 m or less.
See "Cable Connections" (page 3-11).
Even when series connection cannot be established, light interference is reduced by the light
interference prevention function. No special settings are required.
Series connection is required for secure light interference prevention. When not connecting the SL-V units
in series, install the units by referring to "Light Interference Prevention Method" (page 3-8)
T
ransmitter Receiv
er
T
ransmitter Receiv
er
T
ransmitter Receiv
er
Unit connection cable
Series connection
cable
(10 m max.)
Series connection
cable
(10 m max.)
Sub unit 1
Main unit
Sub unit 2
Reference
NOTE