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2 Specifications
NX-series Safety Control Unit User’s Manual (Z930)
2-2 Specifications of Individual Units
2
2-2-2 Safety CPU Unit
NX-SL3300
NX-SL3500
Safety CPU Unit
Unit name Safety CPU Unit
Model NX-SL3300
Maximum number of safety I/O points 256 points
Program capacity 512 KB
Number of safety master connections 32
I/O refreshing method Free-Run refreshing
External connection terminals None
Indicators
FS indicator, VALID indicator, DEBUG indicator, TS indicator, and
RUN indicator
Dimensions 30 × 100 × 71 mm (W × H × D)
I/O power supply method Not supplied.
Current capacity of I/O power supply ter-
minals
No I/O power supply terminals
NX Unit power consumption 0.90 W max.
Current consumption from I/O power sup-
ply
No consumption
Weight 75 g max.
Installation orientation and restrictions
Installation orientation: 6 possible orientations
Restrictions: None
Unit name Safety CPU Unit
Model NX-SL3500
Maximum number of safety I/O points 1,024 points
Program capacity 2,048 KB
Number of safety master connections 128
I/O refreshing method Free-Run refreshing
External connection terminals None
Indicators
FS indicator, VALID indicator, DEBUG indicator, TS indicator, and
RUN indicator
Dimensions 30 × 100 × 71 mm (W × H × D)
I/O power supply method Not supplied.
Current capacity of I/O power supply ter-
minals
No I/O power supply terminals
NX Unit power consumption 0.90 W max.
Current consumption from I/O power sup-
ply
No consumption
Weight 75 g max.
Installation orientation and restrictions
Installation orientation: 6 possible orientations
Restrictions: None
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